CN1743968A

CN1743968A - Developing device, image forming apparatus, and image forming system

Info

Publication number: CN1743968A
Application number: CN 200510093467
Authority: CN
Inventors: 冈本克巳
Original assignee: Seiko Epson Corp
Current assignee: Seiko Epson Corp
Priority date: 2004-08-30
Filing date: 2005-08-30
Publication date: 2006-03-08
Anticipated expiration: 2025-08-30
Also published as: CN1743968B; JP4639695B2; JP2006065175A

Abstract

A developing device, an image forming apparatus, and an image forming system with which it is possible to appropriately perform developing operations are achieved. A developing device attachable to and detachable from a body of an image forming apparatus, is provided with: a developer bearing roller for bearing a developer; a first driving wheel that is provided on an end of the developer bearing roller and that is for driving the developer bearing roller; a second driving wheel that, in a state where the developing device is attached to the body of the image forming apparatus, receives a drive force from the body of the image forming apparatus and that transmits the drive force to the first driving wheel; and a positioning member that is made of metal and that is for positioning the first driving wheel and the second driving wheel.

Description

Developing apparatus, image processing system and image formation system

Technical field

The present invention relates to developing apparatus, image processing system and image formation system.

Background technology

(1) image processing system such as laser printer is well known in the art.For example, this image processing system has: the image carrier that is used to carry sub-image, and developing apparatus, described developing apparatus can be mounted to the main body of image processing system and can dismantle (the movably attaching/detaching part that maybe can be mounted on the main body that is arranged on image processing system also can be dismantled from it) from it, and is used to utilize the sub-image that carries on the developer development photoreceptor.When this image processing system when the external unit such as principal computer receives picture signal etc., it is positioned at developing apparatus on the developing location relative with photoreceptor, utilization is contained in the sub-image that carries on the developer development photoreceptor in the developing apparatus and forms the developer image, and with developer image to the medium finally on medium, to form image.

For example, in order to realize the above-mentioned function that is developed in the sub-image that carries on the photoreceptor, the developing apparatus of the above-mentioned type is provided with the developer carrying roller that is used for bearing developer.The developing apparatus utilization is carried on the sub-image that carries on the developer development photoreceptor on the developer carrying roller.

Developing apparatus also is provided with first driving wheel and second driving wheel, and the end that first driving wheel is arranged on the developer carrying roller is used for driven roller, and second driving wheel is used for driving force is transferred to first driving wheel.When developing apparatus was mounted to the main body of image processing system, second driving wheel received driving force and this driving force is transferred to first driving wheel from the main body of image processing system.Drive the developer carrying roller in this way.(for example with reference to JP 2004-191524A)

But, in order correctly to drive the developer carrying roller, need be with hi-Fix first driving wheel and second driving wheel.First driving wheel and second driving wheel are not positioned at developing apparatus wherein accurately, can not correctly drive the developer carrying roller, and this may cause incorrect development operation.

(2) developing apparatus of another kind of type also is provided with and is used to locate for example setting element of the drive system element of first driving wheel and second driving wheel and so on.For example, consider the simple assembling of developing apparatus, this setting element can be set to two independently elements (parts).Setting element is provided with register pin, is used for when developing apparatus is mounted to the main body of image processing system, with respect to the main body locating development equipment of image processing system.(for example with reference to JP 2004-191524A)

In order to make developing apparatus realize correct development operation, need correctly drive the developer carrying roller.On the other hand, in order correctly to drive the developer carrying roller, need design developing apparatus etc. so that above-mentioned second driving wheel can be correctly received driving force from the main body of image processing system.

Can not be correctly receive under the situation of driving force at second driving wheel from the main body of image processing system, to be difficult to make second driving wheel that the driving force of q.s is transferred to first driving wheel, this may cause the incorrect driving of developer carrying roller and cause incorrect development operation.

(3) for example, for the function of the sub-image realizing carrying on the above-mentioned development photoreceptor, the developing apparatus of another kind of type also has the developer feeding roller except having the developer carrying roller that is used for bearing developer, is used for developer feeding to the developer carrying roller.The developing apparatus utilization is by the sub-image that carries on supply of developer feeding roller and the developer development photoreceptor by the carrying of developer carrying roller.

Developer carrying roller and developer feeding roller are installed in respectively on the element of separation, that is, and and as assembly element of " first installation elements " example and the housing of conduct " second installation elements " example.(for example with reference to JP 2004-191524A)

In order to make the developer feeding roller correctly realize with the function of developer feeding to the developer carrying roller, need be with hi-Fix developer feeding roller and developer carrying roller.In addition, preferably realize by simple structure this location.

(4) in addition, the developing apparatus of another kind of type has second gear, when developing apparatus is in the state that is mounted to attaching/detaching part, when being moved upward to the precalculated position along with attaching/detaching part mobile, first gearing mesh in second gear and the main body that is arranged on image processing system.Second gear is supported by second gear shaft, and this is supported on the main body of developing apparatus by supported part.(for example with reference to JP 2001-228660A)

When developing apparatus was moved upward to above-mentioned precalculated position along with attaching/detaching part mobile, first gear contacted with second gear.At this moment, because by the second gear externally applied forces, second gear shaft may be crooked.

Summary of the invention

Consider that the problems referred to above have made the present invention.

(1) first purpose of the present invention is to realize a kind of developing apparatus, image processing system and image formation system, utilizes it can realize correct development operation.

A first aspect of the present invention is that a kind of main body that is mounted to image processing system also can comprise from the developing apparatus of its dismounting: the developer carrying roller is used for bearing developer; First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller; Second driving wheel is mounted at described developing apparatus under the state of main body of described image processing system, and described second driving wheel receives driving force and described driving force is transferred to described first driving wheel from the main body of described image processing system; And setting element, it is made of metal and is used to locate described first driving wheel and described second driving wheel.

(2) second purpose of the present invention is to realize a kind of developing apparatus, image processing system and image formation system, utilizes it can realize correct development operation.

A second aspect of the present invention is that a kind of main body that is mounted to image processing system also can comprise from the developing apparatus of its dismounting: the developer carrying roller is used for bearing developer; First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller; First setting element is used to locate described first driving wheel; Second driving wheel is mounted at described developing apparatus under the state of main body of described image processing system, and described second driving wheel receives driving force and described driving force is transferred to described first driving wheel from the main body of described image processing system; And second setting element, be used to locate described second driving wheel and have the register pin that is used for locating described developing apparatus with respect to the main body of described image processing system.

(3) the 3rd purpose of the present invention is to realize a kind of developing apparatus, image processing system and image formation system, wherein by simple structure with hi-Fix developer feeding roller and developer carrying roller.

A third aspect of the present invention is a kind of developing apparatus, comprising: the developer carrying roller is used for bearing developer; First installation elements, described developer carrying roller is mounted thereon; The developer feeding roller is used for described developer feeding to described developer carrying roller; Second installation elements, described developer feeding roller is mounted thereon; And clutch shaft bearing, be used for relatively locating described first installation elements and described second installation elements, and be used to take in the axle of described developer feeding roller.

(4) the 4th purpose of the present invention is the bending that suitably prevents second gear shaft.

A fourth aspect of the present invention is a kind of developing apparatus, it can be mounted to the movably attaching/detaching part in the main body that is arranged on image processing system and can dismantle from it, comprise: second gear, when described developing apparatus is in the state that is mounted to described attaching/detaching part and when described developing apparatus moves to the precalculated position along with moving of described attaching/detaching part, described second gear and be arranged on first gearing mesh in the main body of described image processing system; Second gear shaft, it is supported on the main body of described developing apparatus by supported part, and supports described second gear; And lid, it covers the part of described second gear, and supports being positioned at respect to the part on described second gear side opposite with described supported part side of described second gear shaft.

With reference to the accompanying drawings, by following explanation, other features of the present invention and purpose will become clear.

Description of drawings

Fig. 1 shows the view of the main structural components of structure printer 10;

Fig. 2 shows the block scheme of control module of the printer 10 of Fig. 1;

Fig. 3 is the stereographic map of developing apparatus;

Fig. 4 shows the cut-open view of the main structural components of developing apparatus;

It is the stereographic maps that how to be mounted to housing 540 that Fig. 5 shows toner feed rolls 550;

It is the stereographic maps that how to be mounted to bearing shown in Figure 7 526 that Fig. 6 shows developer roll 510;

Fig. 7 shows seal element 520 and restriction blade 560 is the stereographic maps that how to be assembled to bearing 526;

Fig. 8 is the stereographic map of side plate 580;

Fig. 9 shows seal element 520, and restriction blade 560 and developer roll 510 are the stereographic maps that how to be mounted to assembly element 525;

It is the stereographic maps that how to be mounted to housing shown in Figure 5 540 that Figure 10 shows assembly element shown in Figure 9 525;

Figure 11 shows the reference stereographic map of the state that side plate 580 removed from assembly element shown in Figure 10 525;

It is the stereographic maps that how to be mounted to the retained part 55d of YMCK developing cell 50 that Figure 12 shows yellow developing apparatus 54;

It is how to be arranged on the stereographic map of in a longitudinal direction another of yellow developing apparatus 54 on distolateral that Figure 13 shows support 630;

Figure 14 shows before support 630 is set, the reference stereographic map of yellow developing apparatus 54 another distolateral state in a longitudinal direction;

Figure 15 shows the stereographic map of the dorsal part of support 630;

Figure 16 is used to illustrate developing

cell

2051,2052,2053 and 2054 views with respect to the attaching/detaching structure of printer main body 2010a;

Figure 17 shows the view of the main structural components of structure printer 2010;

Figure 18 shows the block scheme of the control module 2100 of printer 2010;

Figure 19 shows the view that yellow developing apparatus 2054 is mounted to the state of attaching/detaching part 2050d;

Figure 20 is the stereographic map of yellow developing apparatus 2054;

Figure 21 shows the cut-open view of the main structural components of yellow developing apparatus 2054;

Figure 22 shows the stereographic map of the drive part of yellow developing apparatus 2054;

Figure 23 shows the stereographic map of the drive part that lid 2630 is removed;

Figure 24 shows the front elevation of the drive part of yellow developing apparatus 2054;

Figure 25 shows the side view of the drive part of yellow developing apparatus 2054;

Figure 26 is the stereographic map of lid 2630;

Figure 27 shows the view of the dorsal part of lid 2630;

Figure 28 shows the explanatory view of the external structure of image formation system; And

Figure 29 shows the block scheme of the structure of image formation system shown in Figure 28.

Embodiment

By the description of explanation in this instructions and accompanying drawing, make following theme become clear to the major general.

(1) a first aspect of the present invention is that a kind of main body that is mounted to image processing system also can comprise from the developing apparatus of its dismounting: the developer carrying roller is used for bearing developer; First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller; Second driving wheel is mounted at described developing apparatus under the state of main body of described image processing system, and described second driving wheel receives driving force and described driving force is transferred to described first driving wheel from the main body of described image processing system; And setting element, it is made of metal and is used to locate described first driving wheel and described second driving wheel.

In this way, can locate first driving wheel and second driving wheel accurately, and correctly drive the developer carrying roller thus.Therefore, can realize correctly to carry out the developing apparatus of development operation.

In addition, described developing apparatus can have the 3rd driving wheel, and when described second driving wheel transferred to driving force described first driving wheel, the 3rd driving wheel played intermediary; Be mounted at described developing apparatus under the state of main body of described image processing system, described second driving wheel can receive driving force and described driving force is transferred to described first driving wheel via described the 3rd driving wheel from the main body of described image processing system; And can use described setting element to locate described the 3rd driving wheel.

In this way, can locate first driving wheel, second driving wheel and the 3rd driving wheel accurately, and correctly drive the developer carrying roller thus.Therefore, can realize correctly to carry out the developing apparatus of development operation.

In addition, described first driving wheel, described second driving wheel, reaching described the 3rd driving wheel can be respectively first driven wheel, second driven wheel, and the 3rd driven wheel; Described setting element can have first support section that is used for rotatably supporting described developer carrying roller, be used for rotatably supporting second support section of described second driven wheel, and be used for rotatably supporting the 3rd support section of described the 3rd driven wheel; Described second driven wheel that is supported by described second support section can mesh with described the 3rd driven wheel that is supported by described the 3rd support section; And described the 3rd driven wheel can mesh with described first driven wheel, and described first driven wheel is arranged on the described developer carrying roller that is supported by described first support section.

In this way, simplified the structure of drive system element.

In addition, described developing apparatus can have and is used for described developer feeding to the developer feeding roller of described developer carrying roller, and is arranged on the end of described developer feeding roller and is used to drive the 4 wheel driven driving wheel of described developer feeding roller; Be mounted at described developing apparatus under the state of main body of described image processing system, described second driving wheel receives driving force and described driving force is transferred to described 4 wheel driven driving wheel from the main body of described image processing system; And can use described setting element to locate described 4 wheel driven driving wheel.

In this way, can locate the 4 wheel driven driving wheel accurately, and correctly drive the developer feeding roller thus.Therefore, can realize correctly to carry out the developing apparatus of development operation.

In addition, described first driving wheel, described second driving wheel, described the 3rd driving wheel and described 4 wheel driven driving wheel can be respectively first driven wheels, second driven wheel, the 3rd driven wheel and 4 wheel driven moving gear; Described setting element can have first support section that is used for rotatably supporting described developer carrying roller, be used for rotatably supporting second support section of described second driven wheel, be used for rotatably supporting the 3rd support section of described the 3rd driven wheel, and be used for rotatably supporting the 4th support section of described developer feeding roller; Described second driven wheel that is supported by described second support section can mesh with described the 3rd driven wheel that is supported by described the 3rd support section; Described the 3rd driven wheel can mesh with described first driven wheel, and described first driven wheel is arranged on the described developer carrying roller that is supported by described first support section; And wherein said first driven wheel and the engagement of described 4 wheel driven moving gear, described 4 wheel driven moving gear is arranged on the described developer feeding roller that is supported by described the 4th support section.

In this way, can simplify the structure of drive system element.

In addition, described setting element can have register pin, is used for locating described developing apparatus with respect to the main body of described image processing system.

In this way, can more correctly drive developer carrying roller etc.

In addition, can also realize that a kind of main body that is mounted to image processing system also can comprise from the developing apparatus of its dismounting: the developer carrying roller is used for bearing developer; First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller; Second driving wheel is mounted at described developing apparatus under the state of main body of described image processing system, and described second driving wheel receives driving force and driving force is transferred to described first driving wheel from the main body of described image processing system; And setting element, it is made of metal and is used to locate described first driving wheel and described second driving wheel; Wherein said developing apparatus has the 3rd driving wheel, and when described second driving wheel transferred to driving force described first driving wheel, the 3rd driving wheel played intermediary; Wherein, be mounted at described developing apparatus under the state of main body of described image processing system, described second driving wheel receives driving force and described driving force is transferred to described first driving wheel via described the 3rd driving wheel from the main body of described image processing system; Wherein use described setting element to locate described the 3rd driving wheel; Wherein said developing apparatus has and is used for described developer feeding to the developer feeding roller of described developer carrying roller, and is arranged on the end of described developer feeding roller and is used to drive the 4 wheel driven driving wheel of described developer feeding roller; Wherein, be mounted at described developing apparatus under the state of main body of described image processing system, described second driving wheel receives driving force and described driving force is transferred to described 4 wheel driven driving wheel from the main body of described image processing system; Wherein use described setting element to locate described 4 wheel driven driving wheel; Wherein said first driving wheel, described second driving wheel, described the 3rd driving wheel and described 4 wheel driven driving wheel are respectively first driven wheels, second driven wheel, the 3rd driven wheel and 4 wheel driven moving gear; Wherein said setting element has first support section that is used for rotatably supporting described developer carrying roller, be used for rotatably supporting second support section of described second driven wheel, be used for rotatably supporting the 3rd support section of described the 3rd driven wheel, and be used for rotatably supporting the 4th support section of described developer feeding roller; Wherein by described second support section described second driven wheel that supports and described the 3rd driven wheel engagement of supporting by described the 3rd support section; Wherein said the 3rd driven wheel and the engagement of described first driven wheel, described first driven wheel is arranged on the described developer carrying roller that is supported by described first support section; Wherein said first driven wheel and the engagement of described 4 wheel driven moving gear, described 4 wheel driven moving gear is arranged on the described developer feeding roller that is supported by described the 4th support section; And wherein said setting element has register pin, is used for locating described developing apparatus with respect to the main body of described image processing system.

In this way, because can obtain all above-mentioned effects, more effectively realized purpose of the present invention.

In addition, can also realize a kind of image processing system, comprise: the main body of described image processing system; And developing apparatus, described developing apparatus has: the developer carrying roller is used for bearing developer; First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller; Second driving wheel, its main body from described image processing system receives driving force and described driving force is transferred to described first driving wheel; And setting element, it is made of metal and is used to locate described first driving wheel and described second driving wheel.

In addition, described setting element can have register pin, is used for locating described developing apparatus with respect to the main body of described image processing system; The described main body of described image processing system can have the pilot hole that described register pin can be fitted into them, and another driving wheel that described driving force is passed to described second driving wheel; Can locate described developing apparatus with respect to the main body of described image processing system by described register pin is assembled in the described pilot hole; And described second driving wheel can receive driving force and described driving force is transferred to described first driving wheel from described another driving wheel.

In this way, can locate another driving wheel and second driving wheel accurately, and more correctly drive developer carrying roller etc. thus.

In addition, can also realize a kind of image formation system, comprise: computing machine; With the image processing system that can be connected to described computing machine, described image processing system has: the main body of described image processing system; And developing apparatus, described developing apparatus has: the developer carrying roller is used for bearing developer; First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller; Second driving wheel, its main body from described image processing system receives driving force and described driving force is transferred to described first driving wheel; And setting element, it is made of metal and is used to locate described first driving wheel and described second driving wheel.

(2) a second aspect of the present invention is that a kind of main body that is mounted to image processing system also can comprise from the developing apparatus of its dismounting: the developer carrying roller is used for bearing developer; First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller; First setting element is used to locate described first driving wheel; Second driving wheel is mounted at described developing apparatus under the state of main body of described image processing system, and described second driving wheel receives driving force and described driving force is transferred to described first driving wheel from the main body of described image processing system; And second setting element, be used to locate described second driving wheel and have the register pin that is used for locating described developing apparatus with respect to the main body of described image processing system.

In this way, second driving wheel can be more correctly receives driving force from the main body of image processing system, and enough driving forces can be transferred to first driving wheel thus.Therefore, can realize correctly to drive the developing apparatus of developer carrying roller and energy correct execution development operation.

In addition, described developing apparatus can have the 3rd driving wheel, and when described second driving wheel transferred to driving force described first driving wheel, the 3rd driving wheel played intermediary; Be mounted at described developing apparatus under the state of main body of described image processing system, described second driving wheel can receive driving force and driving force is transferred to described first driving wheel via described the 3rd driving wheel from the main body of described image processing system; And can use described first setting element to locate described the 3rd driving wheel.

In this way, second driving wheel can be more correctly receives driving force from the main body of image processing system, and can enough driving forces be transferred to first driving wheel by the 3rd driving wheel thus.Therefore, can correctly drive developer carrying roller and can correctly carry out development operation.

In addition, described first driving wheel, described second driving wheel, reaching described the 3rd driving wheel can be respectively first driven wheel, second driven wheel, and the 3rd driven wheel; Wherein said first setting element can have first support section that is used for rotatably supporting described developer carrying roller, and is used for rotatably supporting the 3rd support section of described the 3rd driven wheel; Wherein said second setting element has second support section that is used for rotatably supporting described second driven wheel; Described second driven wheel that is supported by described second support section can mesh with described the 3rd driven wheel that is supported by described the 3rd support section; And described the 3rd driven wheel can mesh with described first driven wheel, and described first driven wheel is arranged on the described developer carrying roller that is supported by described first support section.

In this way, simplified the structure of drive system element.

In addition, described first support section of described first setting element can rotatably support described developer carrying roller via the developer roll bearing; Described second setting element can have the support section pilot hole that described the 3rd support section of described first setting element can be fitted into them, and the described developer roll bearing bearing pilot hole that can be fitted into them; And can be by described the 3rd support section be assembled in the described support section pilot hole, and described developer roll bearing is assembled in the described bearing pilot hole, locate described first setting element and described second setting element.

In addition, can also realize that a kind of main body that is mounted to image processing system also can comprise from the developing apparatus of its dismounting: the developer carrying roller is used for bearing developer; First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller; First setting element is used to locate described first driving wheel; Second driving wheel is mounted at described developing apparatus under the state of main body of described image processing system, and described second driving wheel receives driving force and driving force is transferred to described first driving wheel from the main body of described image processing system; And second setting element, be used to locate described second driving wheel and have the register pin that is used for locating described developing apparatus with respect to the main body of described image processing system; Described developing apparatus has the 3rd driving wheel, and when described second driving wheel transferred to driving force described first driving wheel, the 3rd driving wheel played intermediary; Wherein, be mounted at described developing apparatus under the state of main body of described image processing system, described second driving wheel receives driving force and via described the 3rd driving wheel described driving force is transferred to described first driving wheel from the main body of described image processing system; Wherein use described first setting element to locate described the 3rd driving wheel; Wherein said first driving wheel, described second driving wheel, reaching described the 3rd driving wheel is respectively first driven wheel, second driven wheel, and the 3rd driven wheel; Wherein said first setting element has first support section that is used for rotatably supporting described developer carrying roller, and is used for rotatably supporting the 3rd support section of described the 3rd driven wheel; Wherein said second setting element has second support section that is used for rotatably supporting described second driven wheel; Wherein by described second support section described second driven wheel that supports and described the 3rd driven wheel engagement of supporting by described the 3rd support section; Wherein said the 3rd driven wheel and the engagement of described first driven wheel, described first driven wheel is arranged on the described developer carrying roller that is supported by described first support section; Described first support section of wherein said first setting element rotatably supports described developer carrying roller via the developer roll bearing; Wherein said second setting element has the support section pilot hole that described the 3rd support section of described first setting element can be fitted into them, and the described developer roll bearing bearing pilot hole that can be fitted into them; And wherein by described the 3rd support section is assembled in the described support section pilot hole, and described developer roll bearing is assembled in the described bearing pilot hole, locatees described first setting element and described second setting element.

In addition, can also realize a kind of image processing system, comprise: the main body of described image processing system; And developing apparatus, described developing apparatus has: the developer carrying roller is used for bearing developer; First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller; First setting element is used to locate described first driving wheel; Second driving wheel, its main body from described image processing system receives driving force and described driving force is transferred to described first driving wheel; And second setting element, be used to locate described second driving wheel, and have the register pin that is used for locating described developing apparatus with respect to the main body of described image processing system.

In this way, second driving wheel can be more correctly from the driving force of image processing system main body, and enough driving forces can be transferred to first driving wheel thus.Therefore, can realize correctly driving the developer carrying roller and can the correct execution development operation image processing system.

In addition, the main body of described image processing system can have the device side pilot hole that described register pin can be fitted into them, and another driving wheel that transfers a driving force to described second driving wheel; Can locate described developing apparatus with respect to the main body of described image processing system by described register pin is assembled in the described device side pilot hole; And wherein said second driving wheel receives driving force and described driving force is transferred to described first driving wheel from described another driving wheel.

In this way, what second driving wheel can be more accurate receives driving force from another driving wheel, and enough driving forces can be transferred to first driving wheel thus.Therefore, can realize correctly driving the developer carrying roller and can the correct execution development operation image processing system.

In addition, can also realize a kind of image formation system, comprise: computing machine; With the image processing system that can be connected to described computing machine, described image processing system has: the main body of described image processing system; And developing apparatus, described developing apparatus has: the developer carrying roller is used for bearing developer; First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller; First setting element is used to locate described first driving wheel; Second driving wheel, its main body from described image processing system receives driving force and described driving force is transferred to described first driving wheel; And second setting element, be used to locate described second driving wheel, and have the register pin that is used for locating described developing apparatus with respect to the main body of described image processing system.

In this way, second driving wheel can be more correctly receives driving force from the main body of image processing system, and enough driving forces can be transferred to first driving wheel thus.Therefore, can realize correctly driving the developer carrying roller and can the correct execution development operation image processing system.

(3) a third aspect of the present invention is a kind of developing apparatus, comprising: the developer carrying roller is used for bearing developer; First installation elements, described developer carrying roller is mounted thereon; The developer feeding roller is used for described developer feeding to described developer carrying roller; Second installation elements, described developer feeding roller is mounted thereon; And clutch shaft bearing, be used for relatively locating described first installation elements and described second installation elements, and be used to take in the axle of described developer feeding roller.

In this way, can realize wherein using the simple structure developing apparatus of locating development agent feed rolls and developer carrying roller accurately.

In addition, described first installation elements and described second installation elements can have first pilot hole and second pilot hole that described clutch shaft bearing can be fitted into them respectively; Described developer feeding roller can rotatably be supported by described second installation elements via the described clutch shaft bearing that is assembled in described second pilot hole; And also be assembled in described first pilot hole by the described clutch shaft bearing that will be assembled in described second pilot hole, relatively locate described first installation elements and described second installation elements.

In addition, described developing apparatus can have second bearing, is used to take in the axle of described developer carrying roller; Described first installation elements can have the 3rd pilot hole that described second bearing can be fitted into them; And described developer carrying roller can rotatably be supported by described first installation elements via described second bearing that is assembled in described the 3rd pilot hole.

In addition, described developing apparatus can have, as described clutch shaft bearing, be positioned at the distolateral clutch shaft bearing of in a longitudinal direction one of described developing apparatus on distolateral, and be positioned in a longitudinal direction another of described developing apparatus another distolateral clutch shaft bearing on distolateral; Described second installation elements can have, as described second pilot hole, and distolateral second pilot hole that described one distolateral clutch shaft bearing can be fitted into them, and described another distolateral clutch shaft bearing another distolateral second pilot hole that can be fitted into them; Described developer feeding roller can rotatably be supported by described second installation elements via described another the distolateral clutch shaft bearing that is assembled to described one distolateral clutch shaft bearing in described one distolateral second pilot hole and be assembled in described another distolateral second pilot hole; Described developing apparatus can have, as described second bearing, be positioned at distolateral second bearing of in a longitudinal direction one of described developing apparatus on distolateral, and be positioned in a longitudinal direction another of described developing apparatus another distolateral second bearing on distolateral; Described first installation elements can have, as described the 3rd pilot hole, and distolateral the 3rd pilot hole that described one distolateral second bearing can be fitted into them, and described another distolateral second bearing another distolateral the 3rd pilot hole that can be fitted into them; Described developer carrying roller can rotatably be supported by described first installation elements via being assembled to described one distolateral second bearing in described one distolateral the 3rd pilot hole and being assembled to described another distolateral second bearing in described another distolateral the 3rd pilot hole; Described first installation elements can be only has described first pilot hole that described one distolateral clutch shaft bearing can be fitted into them in a longitudinal direction one of described developing apparatus is distolateral; And can also be assembled in described first pilot hole by the described one distolateral clutch shaft bearing that will be assembled in described one distolateral second pilot hole, relatively locate described first installation elements and described second installation elements.

In addition, on in a longitudinal direction one of described developing apparatus is distolateral, pin can be arranged on in described first installation elements and described second installation elements one, and described pin the 4th pilot hole that can be fitted into them can be arranged in described first installation elements and described second installation elements another; And described pin can be assembled in described the 4th pilot hole.

In this way, the location of first installation elements and second installation elements becomes more reliable.

In addition, in a longitudinal direction another of described developing apparatus was distolateral, described developing apparatus had another distolateral setting element, is used for relatively locating described another distolateral clutch shaft bearing and described another distolateral second bearing.

In this way, the location of developer feeding roller and developer carrying roller becomes more reliable.

In addition, can also realize a kind of developing apparatus, comprise: the developer carrying roller is used for bearing developer; First installation elements, described developer carrying roller is mounted thereon; The developer feeding roller is used for described developer feeding to described developer carrying roller; Second installation elements, described developer feeding roller is mounted thereon; And clutch shaft bearing, be used for relatively locating described first installation elements and described second installation elements, and be used to take in the axle of described developer feeding roller; Wherein said first installation elements and described second installation elements have first pilot hole and second pilot hole that described clutch shaft bearing can be fitted into them respectively; Wherein said developer feeding roller is rotatably supported by described second installation elements via the described clutch shaft bearing that is assembled in described second pilot hole; Wherein also be assembled in described first pilot hole, relatively locate described first installation elements and described second installation elements by the described clutch shaft bearing that will be assembled in described second pilot hole; Wherein said developing apparatus has second bearing, is used to take in the axle of described developer carrying roller; Wherein said first installation elements has the 3rd pilot hole that described second bearing can be fitted into them; Wherein said developer carrying roller is rotatably supported by described first installation elements via described second bearing that is assembled in described the 3rd pilot hole; Wherein said developing apparatus has, as described clutch shaft bearing, be positioned at the distolateral clutch shaft bearing of in a longitudinal direction one of described developing apparatus on distolateral, and be positioned at described developing apparatus another another distolateral clutch shaft bearing on distolateral in a longitudinal direction; Wherein said second installation elements has, as described second pilot hole, and distolateral second pilot hole that described one distolateral clutch shaft bearing can be fitted into them, and described another distolateral clutch shaft bearing another distolateral second pilot hole that can be fitted into them; Wherein said developer feeding roller is rotatably supported by described second installation elements via being assembled to described one distolateral clutch shaft bearing in described one distolateral second pilot hole and being assembled to described another distolateral clutch shaft bearing in described another distolateral second pilot hole; Wherein said developing apparatus has, as described second bearing, be positioned at distolateral second bearing of in a longitudinal direction one of described developing apparatus on distolateral, and be positioned in a longitudinal direction another of described developing apparatus another distolateral second bearing on distolateral; Wherein said first installation elements has, as described the 3rd pilot hole, and distolateral the 3rd pilot hole that described one distolateral second bearing can be fitted into them, and described another distolateral second bearing another distolateral the 3rd pilot hole that can be fitted into them; Described developer carrying roller is rotatably supported by described first installation elements via being assembled to described one distolateral second bearing in described one distolateral the 3rd pilot hole and being assembled to described another distolateral second bearing in described another distolateral the 3rd pilot hole; Wherein said first installation elements only in a longitudinal direction one of described developing apparatus is distolateral, has described first pilot hole that described one distolateral clutch shaft bearing can be fitted into them; Wherein also be assembled in described first pilot hole, relatively locate described first installation elements and described second installation elements by the described one distolateral clutch shaft bearing that will be assembled in described one distolateral second pilot hole; Wherein in a longitudinal direction one of described developing apparatus is distolateral, on among both one of described first installation elements and described second installation elements, pin is set, and described pin the 4th pilot hole that can be fitted into them is set among both another of described first installation elements and described second installation elements; Wherein said pin is assembled in described the 4th pilot hole; And wherein in a longitudinal direction another of described developing apparatus was distolateral, described developing apparatus had another distolateral setting element, is used for relatively locating described another distolateral clutch shaft bearing and described another distolateral second bearing.

In addition, can also realize a kind of image processing system, comprise: developing apparatus, described developing apparatus has: the developer carrying roller is used for bearing developer; First installation elements, described developer carrying roller is mounted thereon; The developer feeding roller is used for described developer feeding to described developer carrying roller; Second installation elements, described developer feeding roller is mounted thereon; And clutch shaft bearing, be used for relatively locating described first installation elements and described second installation elements, and be used to take in the axle of described developer feeding roller.

In this way, can realize wherein using the image processing system of simple structure with hi-Fix developer feeding roller and developer carrying roller.

In addition, can also realize a kind of image formation system, comprise: computing machine; With the image processing system that can be connected to described computing machine, described image processing system has: developing apparatus, and described developing apparatus has: the developer carrying roller is used for bearing developer; First installation elements, described developer carrying roller is mounted thereon; The developer feeding roller is used for described developer feeding to described developer carrying roller; Second installation elements, described developer feeding roller is mounted thereon; And clutch shaft bearing, be used for relatively locating described first installation elements and described second installation elements, and be used to take in the axle of described developer feeding roller.

In this way, can realize wherein using the image formation system of simple structure with hi-Fix developer feeding roller and developer carrying roller.

(4) a fourth aspect of the present invention is a kind of developing apparatus, it can be mounted to the movably attaching/detaching part in the main body that is arranged on image processing system and can dismantle from it, comprise: second gear, when described developing apparatus is in the state that is mounted to described attaching/detaching part and when described developing apparatus moves to the precalculated position along with moving of described attaching/detaching part, described second gear and be arranged on first gearing mesh in the main body of described image processing system; Second gear shaft, it is supported on the main body of described developing apparatus by supported part, and supports described second gear; And lid, it covers the part of described second gear, and supports being positioned at respect to the part on described second gear side opposite with described supported part side of described second gear shaft.。

In this way, because support second gear shaft with so-called dual-gripper, thus improved the rigidity of second gear shaft, so can suitably prevent the bending of second gear shaft.

In addition, in this developing apparatus, described lid can have axle support section, being positioned at of described second gear shaft of described shaft supporting part sub-support with respect to the described part on described second gear and the opposite side of described supported part side, and limit described second gear from described supported part moving on the direction (being called " direction comes off ") of the described part on the described opposition side.

In order to prevent that second gear from moving and come off from second gear shaft, preferably is provided for limiting the element that second gear moves on the direction that comes off on the direction that comes off.Have the function that supports second gear shaft and have the lid that limits second gear mobile function on the direction that comes off by setting with axle support section, just do not need to be provided for separately limiting the element that second gear moves on the direction that comes off, and thus can the minimizing quantitatively of implementation structure assembly.

In addition, in this developing apparatus, described supported part can be arranged on of described second gear shaft distolateral on; And it is distolateral that the described axle support section of described lid can support another of described second gear shaft.

In addition, in this developing apparatus, described developing apparatus can have the 3rd gear with described second gearing mesh, and is supported on the main body of described developing apparatus and supports the 3rd gear shaft of described the 3rd gear by the second supported part.

In this structure, when second tooth bending, second gear and the 3rd gear may not correctly mesh.But, by support second gear shaft with lid, can prevent the bending of second gear shaft, and can make the engagement correctly mutually of second gear and the 3rd gear thus.

In addition, in this developing apparatus, described lid can support being positioned at respect to the part on described the 3rd gear side opposite with the described second supported part side of described the 3rd gear shaft.In this way,, promptly support, improved the rigidity of the 3rd gear shaft, so can correctly prevent the bending of the 3rd gear shaft with so-called dual-gripper because the 3rd gear shaft is all supported at two ends with respect to the 3rd gear.

In addition, in this developing apparatus, described lid can have second axle support section, being positioned at of described the 3rd gear shaft of the described second shaft supporting part sub-support with respect to the described part on described the 3rd gear side opposite with the described second supported part side, and limit described the 3rd gear from the described second supported part moving on the direction of the described part on the described opposition side (being called " second breaks away from direction ").

Move on the direction and come off in order to prevent that the 3rd gear from coming off second, preferably be provided for limiting the 3rd gear at second element that comes off and move on the direction from the 3rd gear shaft.Have the function that supports the 3rd gear shaft and have restriction the 3rd gear by setting at second the lid that comes off the function that moves on the direction with second axle support section, just do not need to be provided for separately to limit the 3rd gear at second element that comes off and move on the direction, and thus can the minimizing quantitatively of implementation structure assembly.

In addition, in this developing apparatus, described axle support section can have first hole that described second gear shaft can be fitted into them; Described second axle support section can have second hole that described the 3rd gear shaft can be fitted into them; Can be by described second gear shaft being assembled in described first hole described second gear shaft of described shaft supporting part sub-support; And can be by described the 3rd gear shaft being assembled in described second hole described the 3rd gear shaft of the described second shaft supporting part sub-support.

In this way, axle support section can support second gear shaft and second axle support section can support the 3rd gear shaft reliably reliably.Thus, can more effectively prevent the bending of second gear shaft and the 3rd gear shaft.

In addition, in this developing apparatus, described second gear shaft and described the 3rd gear shaft can be the lid setting elements that is used to locate described lid.

In order to prevent that lid from disturbing second gear and the 3rd gear, need accurately locate lid with respect to the main body of developing apparatus.If second gear shaft and the 3rd gear shaft play the lid setting element, then second gear shaft and the 3rd gear shaft can have the function of Support Gear and determine the function of lid position with respect to the main body of developing apparatus.Thus, do not need the independent lid setting element that provides, and thus can the minimizing quantitatively of implementation structure assembly.

In addition, in this developing apparatus, described developing apparatus can have developer carrier, is used for bearing developer; And the 4th gear, its be arranged in a longitudinal direction one of described developer carrier distolateral on, and with described the 3rd gearing mesh.

In the 3rd gear and the 4th gear joggled structure, when the 3rd gear shaft was crooked, the 3rd gear and the 4th gear may mesh improperly, and this can cause the inhomogeneous rotation of developer carrier.This inhomogeneous rotation will then cause the defective in the image.On the other hand,, can prevent the bending of the 3rd gear shaft, and the 3rd gear and the 4th gear are correctly meshed, and make developer carrier correctly rotate by support the 3rd gear shaft with lid.

In addition, in this developing apparatus, when described developing apparatus moved to described precalculated position, described developing apparatus was developed in the sub-image that carries on the image carrier, and described image carrier is arranged in the main body of described image processing system.

A major function of developing apparatus is to be developed in the sub-image that carries on the image carrier.Thus, developing apparatus moves to the precalculated position and second gear is higher with the frequency that first gear contacts, and the possibility of the second gear shaft bending is higher thus.Be developed at developing apparatus when developing apparatus moves to the precalculated position under the situation of the sub-image that carries on the image carrier, can more effectively realize suitably preventing the effect of the second gear shaft bending.

In addition, can also realize a kind of developing apparatus, it can be mounted to the movably attaching/detaching part in the main body that is arranged on image processing system and can dismantle from it, comprise: second gear, when described developing apparatus is in the state that is mounted to described attaching/detaching part and when described developing apparatus moves to the precalculated position along with moving of described attaching/detaching part, described second gear and be arranged on first gearing mesh in the main body of described image processing system; Second gear shaft, it is supported on the main body of described developing apparatus by supported part, and supports described second gear; And lid, it covers the part of described second gear, and supports being positioned at respect to the part on described second gear side opposite with described supported part side of described second gear shaft; Wherein said lid has axle support section, being positioned at of described second gear shaft of described shaft supporting part sub-support with respect to the described part on described second gear side opposite with described supported part side, and limit described second gear from described supported part moving on the direction of the described part on the described opposition side; Wherein said supported part be arranged on of described second gear shaft distolateral on; Another of described second gear shaft of described shaft supporting part sub-support of wherein said lid is distolateral; Wherein said developing apparatus has the 3rd gear with described second gearing mesh, and is supported on the main body of described developing apparatus and supports the 3rd gear shaft of described the 3rd gear by the second supported part; Wherein said lid supports being positioned at respect to the part on described the 3rd gear side opposite with the described second supported part side of described the 3rd gear shaft; Wherein said lid has second axle support section, being positioned at of described the 3rd gear shaft of the described second shaft supporting part sub-support with respect to the described part on described the 3rd gear side opposite with the described second supported part side, and limit described the 3rd gear from the described second supported part moving on the direction of the described part on the described opposition side; Wherein said axle support section has first hole that described second gear shaft can be fitted into them; Wherein said second axle support section has second hole that described the 3rd gear shaft can be fitted into them; Wherein by described second gear shaft being assembled in described first hole described second gear shaft of described shaft supporting part sub-support; Wherein by described the 3rd gear shaft being assembled in described second hole described the 3rd gear shaft of the described second shaft supporting part sub-support; Wherein said second gear shaft and described the 3rd gear shaft are the lid setting elements that is used to locate described lid; Wherein said developing apparatus has developer carrier, is used for bearing developer; And the 4th gear, its be arranged in a longitudinal direction one of described developer carrier distolateral on, and with described the 3rd gearing mesh; And wherein when described developing apparatus moved to described precalculated position, described developing apparatus was developed in the sub-image that carries on the image carrier, and described image carrier is arranged in the main body of described image processing system.

With this developing apparatus, can realize suitably to prevent the effect of the second gear shaft bending quite effectively.

In addition, can also realize a kind of image processing system, comprise: image carrier is used to carry sub-image; And developing apparatus, it can be mounted to the movably attaching/detaching part in the main body that is arranged on image processing system and can dismantle from it, be mounted at described developing apparatus under the state of described attaching/detaching part, described developing apparatus is used to be developed in the sub-image that carries on the described image carrier, and described developing apparatus has: second gear, when described developing apparatus is in the state that is mounted to described attaching/detaching part and when described developing apparatus moves to the precalculated position along with moving of described attaching/detaching part, described second gear and be arranged on first gearing mesh in the main body of described image processing system; Second gear shaft, it is supported on the main body of described developing apparatus by supported part, and supports described second gear; And lid, it covers the part of described second gear, and supports being positioned at respect to the part on described second gear side opposite with described supported part side of described second gear shaft.

Because above-mentioned image processing system is provided with the developing apparatus that can suitably prevent the second gear shaft bending, can realize being better than the image processing system of conventional apparatus.

In addition, can also realize a kind of image formation system, comprise: computing machine; With the image processing system that can be connected to described computing machine, described image processing system comprises: image carrier is used to carry sub-image; And developing apparatus, it can be mounted to the movably attaching/detaching part in the main body that is arranged on image processing system and can dismantle from it, be mounted at described developing apparatus under the state of described attaching/detaching part, described developing apparatus is used to be developed in the sub-image that carries on the described image carrier, and described developing apparatus has: second gear, when described developing apparatus is in the state that is mounted to described attaching/detaching part and when described developing apparatus moves to the precalculated position along with moving of described attaching/detaching part, described second gear and be arranged on first gearing mesh in the main body of described image processing system; Second gear shaft, it is supported on the main body of described developing apparatus by supported part, and supports described second gear; And lid, it covers the part of described second gear, and supports being positioned at respect to the part on described second gear side opposite with described supported part side of described second gear shaft.

Because above-mentioned image formation system is provided with the developing apparatus that can suitably prevent the second gear shaft bending, can realize being better than the image formation system of legacy system.

First embodiment of＜＜＜〉〉〉

The total structure example of image processing system

Then, with reference to figure 1, as example, will the summary of image processing system be described with laser printer 10 (after this being also referred to as " printer ").Fig. 1 shows the view of the main structural components of structure printer 10.It should be noted, show vertical direction with arrow in Fig. 1, for example, paper supply tray 92 is arranged in the bottom of printer 10 and fixation unit 90 is arranged in the top of printer 10.

As shown in Figure 1, the printer 10 according to the embodiment of the invention has charhing unit 30, exposing unit 40, YMCK developing cell 50, first transfer printing unit 60, intermediate transfer body 70 and cleaning unit 75.These arrangements of components are on the sense of rotation of photoreceptor 20.Printer 10 also has: second transfer printing unit 80; Fixation unit 90; Constitute and with the display unit 95 of the device of doing the user is notified by display panels; And control module 100, be used to control these unit etc. and manage their operations as printer.

Photoreceptor 20 has the cylindrical conductive matrix and is formed on photoconductive layer on the outer surface of conducting base, and photoreceptor 20 can be around its central shaft rotation.In the present embodiment, photoreceptor 20 is rotated in a clockwise direction shown in arrow among Fig. 1.

Charhing unit 30 is the equipment that is used for photoreceptor 20 chargings.Exposing unit 40 is to be used for by laser beam irradiation is formed the equipment of sub-image thereon on the photoreceptor 20 that has charged.Exposing unit 40 has for example semiconductor laser, polygon mirror (polygon mirror) and F-θ lens, and according to will be through the laser beam irradiation of ovennodulation to the photoreceptor 20 that has charged from the picture signal of unshowned main frame input, described main frame can for example be PC or word processor.

YMCK developing cell 50 is such equipment, this equipment utilization toner T, just be contained in black (K) toner in the black imaging equipment 51, be contained in magenta (M) toner in the magenta developing apparatus 52, be contained in cyan (C) toner in the cyan developing apparatus 53 and be contained in yellow (Y) toner in the yellow developing apparatus 54, developing is formed on sub-image on the photoreceptor 20.Toner T is the example that is contained in " developer " in each developing apparatus.

YMCK developing cell 50 can move the position of four developing apparatuses 51,52,53 and 54 by rotation when developing apparatus 51,52,53 and 54 is in installment state.More specifically, YMCK developing cell 50 utilizes four retained part 55a, 55b, 55c and 55d to come four developing apparatuses of clamping 51,52,53 and 54.Four developing apparatuses 51,52,53 and 54 can keep their relative position simultaneously around turning axle 50a rotation.When finishing the image forming course of one page each time, each developing apparatus is relative with photoreceptor 20 selectively, is contained in toner T in developing apparatus 51,52,53 and 54 each with use and one after the other develops and be formed on sub-image on the photoreceptor 20.It should be noted, the main body of each the be installed to YMCK developing cell 50 in above-mentioned four developing apparatuses 51,52,53 and 54 (more specifically, being each retained part 55a, 55b, 55c and the 55d of YMCK developing cell 50), and can dismantle from it.When developing apparatus 51,52,53 and 54 is mounted to retained part 55a, 55b, 55c and 55d respectively, the register pin 592 (will further describe hereinafter) that is arranged on each developing apparatus 51,52,53 and 54 is assembled in the corresponding register pin pilot hole 58, and this hole is arranged in the main body of image processing system and is the example of register pin 592 " pilot hole " or " device side pilot hole " that can be fitted into them.In this way, developing apparatus 51,52,53 and 54 main body location (seeing Figure 12) with respect to image processing system.Will be further described below the details on the developing apparatus.

First transfer printing unit 60 is to be used for being transferred to equipment on the intermediate transfer body 70 with being formed on monochromatic toner image on the photoreceptor 20.When the toner of all four kinds of colors during by transfer printing in succession, will form the image of full-color toner in the mode of stack on intermediate transfer body 70.

Intermediate transfer body 70 is lamination endless belt (endless belt), this endless belt by vapour deposition aluminium lamination is arranged on the surface of PET film and subsequently on its skin further the coating coated semiconductor make.Intermediate transfer body 70 is driven in rotation with the peripheral speed substantially the same with photoreceptor 20.

Second transfer printing unit 80 is the equipment that is used for being formed on the recording medium that monochromatic toner image on the intermediate transfer body 70 or full-color toner image be transferred to for example paper, film or cloth and so on.

Fixation unit 90 be used for be transferred to monochromatic toner image on the medium or full-color toner image photographic fixing to medium so that image becomes the equipment of permanent image.

Cleaning unit 75 is arranged on the equipment between first transfer printing unit 60 and the charhing unit 30, cleaning unit 75 has against the rubber cleaning blade 76 on photoreceptor 20 surfaces, and after toner image was transferred on the intermediate transfer body 70 by first transfer printing unit 60, cleaning unit 75 was wiped the toner T that remains on the photoreceptor 20 off by cleaning blade 76 it is removed.

As shown in Figure 2, control module 100 has master controller 101 and cell controller 102.Picture signal and control signal are imported into master controller 101, and according to the instruction based on picture signal and control signal, above-mentioned each unit of cell controller 102 controls etc. are to form image.

Next the as above operation of the printer 10 of structure will be described.

At first, when the picture signal from unshowned main frame is imported into the master controller 101 of printer 10 via interface (I/F) 112, based on the instruction that comes autonomous controller 101, under the control of cell controller 102, the developer roll and the intermediate transfer body 70 of photoreceptor 20, conduct " developer carrying roller " example rotate under the control of cell controller 102.When rotation, photoreceptor 20 is recharged unit 30 at charge position and charges constantly.

Along with the rotation of photoreceptor 20, the charging of photoreceptor 20 zone arrives exposure position.In this zone, form the corresponding sub-image of image information with first color of for example yellow Y by exposing unit 40.The yellow developing apparatus 54 that YMCK developing cell 50 will hold yellow (Y) toner is positioned on the developing location relative with photoreceptor 20.

Along with the rotation of photoreceptor 20, the sub-image that is formed on the photoreceptor 20 arrives developing location, and is utilized Yellow toner to develop by yellow developing apparatus 54.Thereby on photoreceptor 20, form yellow toner image.

Along with the rotation of photoreceptor 20, the yellow toner image that is formed on the photoreceptor 20 arrives first transfer position, and is transferred on the intermediate transfer body 70 by first transfer printing unit 60.At this moment, apply opposite polarity first transfer voltage that polarity and toner T are charged to first transfer printing unit 60.It should be noted that during above-mentioned process, photoreceptor 20 and intermediate transfer body 70 are changed to and are in contact with one another, but second transfer printing unit 80 keeps separating with intermediate transfer body 70.

By utilizing each developing apparatus that second color, the 3rd color and the 4th color are carried out said process successively, be transferred on the intermediate transfer body 70 in overlapping mode corresponding to the toner image of four kinds of colors of picture signal separately.As a result, on intermediate transfer body 70, formed full-color toner image.

Along with the rotation of intermediate transfer body 70, the full-color toner image that is formed on the intermediate transfer body 70 arrives second transfer position, and is transferred on the medium by second transfer printing unit 80.It should be noted, medium from paper supply tray 92 via paper feed roller 94 with stop that roller 96 is transported to second transfer printing unit 80.During transfer operation, apply second transfer voltage to second transfer printing unit 80, and second transfer printing unit 80 is pressed against intermediate transfer body 70.

Be transferred to full-color toner image on the medium and heated by fixation unit 90 and pressurize, and by photographic fixing to medium.

On the other hand, after photoreceptor 20 is through first transfer position, adhere to the cleaning blade 76 that the toner T on photoreceptor 20 surfaces is supported on the cleaning unit 75 and wipe off, and photoreceptor 20 is prepared charging to form next sub-image.The toner T that wipes off is collected in the remaining toner gatherer of cleaning unit 75.

The control module general introduction

Next with reference to the structure of Fig. 2 description control unit 100.The master controller 101 of control module 100 is connected to main frame via interface 112, and has the video memory 113 that is used to store from the picture signal of main frame input.Cell controller 102 be electrically connected in the apparatus main body a plurality of unit (promptly, charhing unit 30, exposing unit 40, YMCK developing cell 50, first transfer printing unit 60, cleaning unit 75, second transfer printing unit 80, fixation unit 90 and display unit 95), and its sensor received signal from be arranged on these unit is come the state of detecting unit, and according to these unit of signal controlling from master controller 101 inputs.

The structure example of developing apparatus

Next the structure of developing apparatus is described with reference to figure 3 to Figure 15.Fig. 3 is the stereographic map of developing apparatus.Fig. 4 shows the cut-open view of the main structural components of developing apparatus.It is the stereographic maps that how to be mounted to housing 540 that Fig. 5 shows toner feed rolls 550.It is the stereographic maps that how to be mounted to the bearing 526 among Fig. 7 that Fig. 6 shows developer roll 510.Fig. 7 shows seal element 520 and restriction blade 560 is the stereographic maps that how to be assembled to bearing 526.Fig. 8 is the stereographic map of side plate 580.It is the stereographic maps that how to be mounted to assembly element 525 that Fig. 9 shows seal element 520, restriction blade 560 and developer roll 510.It is the stereographic maps that how to be mounted to housing shown in Figure 5 540 that Figure 10 shows assembly element shown in Figure 9 525.Figure 11 shows the reference stereographic map of the state that side plate 580 removed from assembly element shown in Figure 10 525.It is the stereographic maps that how to be mounted to the retained part 55d of YMCK developing cell 50 that Figure 12 shows yellow developing apparatus 54.It is how to be arranged on the stereographic map of in a longitudinal direction another of yellow developing apparatus 54 on distolateral that Figure 13 shows support 630.Figure 14 shows before support 630 is set, the stereographic map of the state in a longitudinal direction another of yellow developing apparatus 54 is distolateral.Figure 15 shows the stereographic map of the rear side of support 630.

It should be noted that cut-open view shown in Figure 4 is that developing apparatus is by the cross section that the plane intercepted vertical with longitudinal direction shown in Figure 3.In addition, as among Fig. 1, show vertical direction with arrow in Fig. 4, for example, developer roll 510 central shafts are positioned at the below of the central shaft of photoreceptor 20.In addition, yellow developing apparatus 54 is shown as and is positioned at the developing position relative with photoreceptor 20 in Fig. 4.

YMCK developing cell 50 is provided with: the black imaging equipment 51 that holds black (K) toner; The magenta developing apparatus 52 that holds magenta (M) toner; The cyan developing apparatus 53 that holds cyan (C) toner; With the yellow developing apparatus 54 that holds yellow (Y) toner.Because each structure of these developing apparatuses all is identical, so following will only being described yellow developing apparatus 54.

Yellow developing apparatus 54 for example has: the housing 540 of the conduct that toner feed rolls 550 is mounted thereon " second installation elements " example; Toner feed rolls 550 as " developer feeding roller " example; Last containment member 520; Restriction blade 560; The assembly element 525 of the conduct that developer roll 510 is mounted thereon " setting element " or " first installation elements " example.

Housing 540 is by the housing parts with a plurality of integrally moulded moulding that are formed from a resin, and promptly upper case portion 542 and lower house part 543 weld together and make.The toner container 538 that is used for holding toner T is formed on housing 540.By be used to separate toner T and from the inwall of toner container 530 inwardly (Fig. 4/below upwards) outstanding partition wall 545, toner container 538 is divided into two toner accommodating parts, i.e. the first toner accommodating part 538a and the second toner accommodating part 538b.The first toner accommodating part 538a links to each other on top with the second toner accommodating part 538b, and when being in state shown in Figure 4, the motion of partition wall 545 restriction toner T.But when YMCK developing cell 50 rotation, the toner that is contained among the first toner accommodating part 538a and the second toner accommodating part 538b was once accumulating on the part side of holding portion connecting place, and this side is positioned on the upside when being in developing location; And when YMCK developing cell 50 turned back to state shown in Figure 4, toner was mixed and turn back to subsequently among the first toner accommodating part 538a and the second toner accommodating part 538b.In other words, by the rotation of YMCK developing cell 50, agitation of toner T suitably in developing apparatus.Thus, in the present embodiment, in toner container 538, agitating element is not set.But, can be provided for stirring the agitating element of the toner T that is contained in the toner container 538.It should be noted that as shown in Figure 4, housing 540 (more specifically, the first toner accommodating part 538a) has the opening 572 that is positioned at its underpart, and developer roll as described below 510 is set in the face of opening 572.In addition, being positioned on the sidewall 544 of in a longitudinal direction one of housing 540 on distolateral, be provided with pin 544a, it can be assembled to and be arranged in the assembly element 525 (side plate 580) and as (see figure 5) in the pin pilot hole 588 of " the 4th pilot hole " example.

As Fig. 4 and shown in Figure 5, toner feed rolls 550 is arranged among the first above-mentioned toner accommodating part 538a, and the toner T that will be contained among the first toner accommodating part 538a is fed to following developer roll 510.Toner feed rolls 550 is also peelled off from the toner T that will remain on the developer roll 510 after developer roll 510 will develop.Toner feed rolls 550 is made by for example isocyanurate foam, and is resisted against on the developer roll 510 by the state with elastic deformation.Toner feed rolls 550 is disposed in the bottom of the first toner accommodating part 538a.The toner T that is contained among the first toner accommodating part 538a is supplied to developer roll 510 by the toner feed rolls 550 in the first toner accommodating part 538a bottom.As shown in Figure 5, toner feed rolls 550 is rotatably supported by its axle, this beam warp is supported by housing 540 by two feed rolls bearings 578 (it is the example that is used to take in " clutch shaft bearing " of axle), and two feed rolls bearings 578 are: be positioned at that in a longitudinal direction one of toner feed rolls 550 (yellow developing apparatus 54) is distolateral to go up and as the distolateral feed rolls bearing 578a of " a distolateral clutch shaft bearing " example; Go up and as another distolateral feed rolls bearing 578b of " another distolateral clutch shaft bearing " example with in a longitudinal direction another of location is distolateral.More specifically, housing 540 is provided with: a distolateral feed rolls pilot hole 546a of the conduct that a distolateral feed rolls bearing 578a can be fitted into them " distolateral second pilot hole " example; And another distolateral feed rolls pilot hole 546b of another distolateral feed rolls bearing 578b conduct " another distolateral second pilot hole " example that can be fitted into them, hole 546a and 546b play feed rolls pilot hole 546, and feed rolls pilot hole 546 is that the example and the feed rolls bearing 578 of " second pilot hole " can be fitted into them.Toner feed rolls 550 is rotatably supported by housing 540 via being assembled to the distolateral feed rolls bearing 578a among the distolateral feed rolls pilot hole 546a and being assembled to another distolateral feed rolls bearing 578b among another distolateral feed rolls pilot hole 546b.As shown in Figure 4, toner feed rolls 550 is with direction (clockwise direction in Fig. 4) rotation opposite with the sense of rotation (counter clockwise direction among Fig. 4) of developer roll 510.The position of the central shaft of toner feed rolls 550 is lower than the rotary middle spindle of developer roll 510.It should be noted, be arranged on end (in the axial direction one the is distolateral) (see figure 3) of toner feed rolls 550 as the feed rolls driven wheel 610 that is used to drive toner feed rolls 550 of " 4 wheel driven driving wheel (4 wheel driven moving gear) " example.

Developer roll 510 carrying toner T also are sent to the developing location relative with photoreceptor 20.Developer roll 510 is for example made by the ferroalloy of the aluminium alloy of aluminium alloy 5056, aluminium alloy 6063 and so on or STKM and so on, and as required, roller 510 is coated with for example nickel coating or chrome plating.

As shown in Figure 6, developer roll 510 has a 510a and major diameter part 510b.Developer roll 510 is rotatably supported by its 510a, axle 510a is supported by bearing 526 (as mentioned below) via two developer roll bearings 576 (as the example of " the developer roll bearing " or " second bearing " that are used to take in a 510a), and wherein two developer roll bearings 576 are: be positioned at that in a longitudinal direction one of developer roll 510 (yellow developing apparatus 54) is distolateral to go up and as the distolateral developer roll bearing 576a of " distolateral second bearing " example; Go up and as another distolateral developer roll bearing 576b of " another distolateral second bearing " example with in a longitudinal direction another of location is distolateral.As shown in Figure 4, developer roll 510 is with direction (counter clockwise direction in Fig. 4) rotation opposite with the sense of rotation (clockwise direction among Fig. 4) of photoreceptor 20.The central shaft of roller 510 is positioned under the central shaft of photoreceptor 20.It should be noted that conduct " first driving wheel (first driven wheel) " the developer roll driven wheel 612 of example that is used to drive developer roll 510 is set at end (on the axial direction the is distolateral) (see figure 3) of developer roll 510.

In addition, under the state relative, between developer roll 510 and photoreceptor 20, produce the slit at yellow developing apparatus 54 with photoreceptor 20.That is, yellow developing apparatus 54 develops with contactless state and is formed on sub-image on the photoreceptor 20.It should be noted, be formed on sub-image on the photoreceptor 20 when developing, between developer roll 510 and photoreceptor 20, produce alternating field.

Last seal element 520 along its axial direction against developer roll 510 to allow moving in the housing 540 and the moving of toner T of limiting in the housing 540 prevents to move to the outside from it through remaining in toner T on the developer roll 510 behind the developing location.Last seal element 520 is seals of being made by for example polyethylene film.Last seal element 520 is supported by the sealing support section 527 of going up of following bearing 526, and it is arranged so that its longitudinal direction (see figure 7) on the axial direction of developer roll 510.Last seal element 520 against the rest position of developer roll 510 on the central shaft of developer roll 510.

In addition, as shown in Figure 4, the surface of last sealing support section 527 and last seal element 520 (this surface with last seal element 520 in order to a side opposite against the abutment surface 520b of developer roll 510 on, also be known as opposed surface 520c) between, be provided with the upward sealing thrust elements of making by for example polyester foam (Moltoprene), be in compressive state 524.By going up seal element 520 towards developer roll 510 compressing with its compressing power, on seal thrust elements 524 and will go up seal element 520 and press on developer roll 510.

Restriction blade 560 is along its axial direction against developer roll 510, and restriction is by the thickness of the toner T layer of developer roll 510 carryings and to the toner T charging by developer roll 510 carryings.Restriction blade 560 has rubber part 560a and rubber part 560b.Rubber part 560a is made by for example silicon rubber or ammonia ester rubber (urethane rubber).Rubber part 560b is a thin plate, is made by for example phosphor bronze or stainless steel, and has spring-like properties.

Rubber part 560a is supported by rubber part 560b.Rubber part 560b is pressed against rubber part 560a on the developer roll 510 by its compressing power.Rubber part 560b by the state that restriction blade support part 528 supports, is mounted to the restriction blade support part 528 of bearing as described below 526 with the end of rubber part 560b.

Restriction blade 560 with the opposite ends of supporting by restriction blade support part 528, end, the top of promptly limiting blade 560 is not placed as and contact with developer roll 510, but contacts developer roll 510 in the part of leaving preset distance place, top with certain width.That is, the restriction blade 560 not in its edge against developer roll 510, but near its core against roller 510.In addition, restriction blade 560 is arranged such that the upstream side of its top end face to developer roll 510 sense of rotation, and forms what is called oppositely against (counter-abutment) with respect to roller 510 thus.It should be noted, restriction blade 560 against the rest position of developer roll 510 below the central shaft of developer roll 510 and also below the central shaft of toner feed rolls 550.

In addition, end sealing 574 is arranged on the rubber part 560a outside (see figure 7) in a longitudinal direction of restriction blade 560.End sealing 574 make by non-woven fibre and along the circumferencial direction of developer roll 510 against developer roll 510 end in the axial direction, work thus to prevent that toner T from overflowing between the circumferential surface of roller and housing 540.

Assembly element 525 is that the element that is made of metal is used to assemble the various elements as developer roll 510 and driven wheel and so on.Consider allow developing apparatus simple assembling (promptly, can install respectively when assembling developing apparatus in order to allow following bearing 526 and side plate 580), assembly element 525 mainly is made of two elements, promptly, as the bearing 526 of " first setting element " example, and side plate 580 (see figure 9)s that are positioned at conduct " second setting element " example of in a longitudinal direction one of bearing 526 (yellow developing apparatus 54) on distolateral.

Bearing 526 is the elements that are made of metal.As shown in Figure 7, bearing 526 has the longitudinal direction of being arranged in (promptly, going up the axial direction of developer roll 510) seals support section 527, be arranged in longitudinal direction equally (promptly, the axial direction of developer roll 510) the restriction blade support part 528 on, and in a longitudinal direction (axial direction) be arranged on the outside of sealing support section 527 and restriction blade support part 528 and with the crossing developer roll support section 529 of longitudinal direction (axial direction).

Developer roll support section 529 by be positioned in a longitudinal direction one of bearing 526 (yellow developing apparatus 54) on distolateral a distolateral developer roll support section 529a and be positioned in a longitudinal direction another of bearing 526 (yellow developing apparatus 54) another distolateral developer roll support section 529b on distolateral and constituted.In addition, a distolateral developer roll support section 529a and another distolateral developer roll support section 529b have respectively: a distolateral developer roll pilot hole 530a of the conduct that a distolateral developer roll bearing 576a can be fitted into them " distolateral the 3rd pilot hole " example; And another distolateral developer roll pilot hole 530b of another distolateral developer roll bearing 576b conduct " another distolateral the 3rd pilot hole " example that can be fitted into them, hole 530a and 530b play developer roll pilot hole 530, and developer roll pilot hole 530 is examples that developer roll bearing 576 can be fitted into them " first assembled portion " or " the 3rd pilot hole ".Developer roll 510 rotatably supports (see figure 6) via being assemblied in the distolateral developer roll bearing 576a among the distolateral developer roll pilot hole 530a and being assemblied in another distolateral developer roll bearing 576b among another distolateral developer roll pilot hole 530b by bearing 526 (assembly element 525).It should be noted, at one end side developer roll support section 529a is provided with the neutral gear support section 531 as " the 3rd support section " example, is used for rotatably supporting the following neutral gear 614 as " the 3rd driving wheel (the 3rd driven wheel) " example.

In addition, last seal element 520 its lateral ends 520a place by on sealing support section 527 support (see figure 4)s, and restriction blade 560 at its lateral ends 560c place by restriction blade support part 528 support (see figure 4)s.In addition, as shown in Figure 7, restriction blade 560 is in its longitudinal end 560d place support end sealing 574.

Side plate 580 is the elements that are made of metal, only be positioned in a longitudinal direction one of yellow developing apparatus 54 distolateral on.As shown in Figure 8, side plate 580 has: the support section pilot hole 582 of the conduct that neutral gear support section 531 can be fitted into them " support section pilot hole " example; The developer roll pilot hole 584 of conduct " bearing pilot hole " example that one distolateral developer roll bearing 576a can be fitted into them; Conduct " the 4th support section " that one distolateral feed rolls bearing 578a can be fitted into them or the feed rolls pilot hole 586 of " first pilot hole " example; The pin pilot hole 588 that pin 544a can be fitted into them; As the developing apparatus side gear support section 590 of " second support section " example, be used for rotatably supporting following developing apparatus side gear 616 as " second driving wheel (second driven wheel) " example; And register pin 592, be used for main body position yellow developing apparatus 54 with respect to image processing system.

As shown in Figure 9, in the developer roll pilot hole 584 and support section pilot hole 582 that is assembled to side plate 580 respectively by a distolateral developer roll bearing 576a and neutral gear support section 531 with bearing 526 (being provided with developer roll 510 etc.), structure assembly element 525.

As Figure 10 and shown in Figure 11, as above Gou Zao assembly element 525 is mounted to the housing 540 that is provided with toner feed rolls 550 (see figure 5)s via housing seal 602 (see figure 4)s, is used to prevent that toner T from overflowing between assembly element 525 and housing 540.At this moment, be arranged in the feed rolls pilot hole 586 in a longitudinal direction one of yellow developing apparatus 54 is distolateral and pin pilot hole 588 that distolateral feed rolls bearing 578a on the housing 540 with toner feed rolls 550 and pin 544a be assembled to assembly element 525 respectively.Thus, toner feed rolls 550 is rotatably supported by the feed rolls pilot hole 586 of assembly element 525 and the feed rolls pilot hole 546 of housing 540.

As mentioned above, developer roll driven wheel 612 and feed rolls driven wheel 610 are separately positioned on the end of developer roll 510 and the end of toner feed rolls 550 (on the axial direction is distolateral); As shown in Figure 3, except these gears, yellow developing apparatus 54 also is provided with developing apparatus side gear 616 and neutral gear 614.

Developing apparatus side gear 616 is gears as described below: when yellow developing apparatus 54 is mounted to the main body of image processing system from the main body of image processing system (more specifically, from following apparatus side gear 56 as " other driving wheel " example) receive driving force, and this driving force is transferred to developer roll driven wheel 612 and feed rolls driven wheel 610.Developing apparatus side gear 616 is rotatably supported by developing apparatus side gear support section 590.

Neutral gear 614 is when developing apparatus side gear 616 transfers to developer roll driven wheel 612 and feed rolls driven wheel 610 with driving force, plays the gear of intermediation.More specifically, be mounted at yellow developing apparatus 54 under the state of main body of image processing system, developing apparatus side gear 616 receives driving force from the main body of image processing system, and via neutral gear 614 this driving force is transferred to developer roll driven wheel 612 and feed rolls driven wheel 610.Neutral gear 614 is rotatably supported by neutral gear support section 531.

As shown in Figure 3, developing apparatus side gear 616 and neutral gear 614 engagements,

neutral gear

614 and 612 engagements of developer roll driven wheel, and developer roll driven wheel 612 and 610 engagements of feed rolls driven wheel.In addition, as shown in figure 12, device side gear 56 engagements on developing apparatus side gear 616 and the main body that is arranged on image processing system.

Device side gear 56 will be passed to developing apparatus side gear 616 from the driving force that the drive source (not shown) receives.Then, via neutral gear 614, developing apparatus side gear 616 will transfer to developer roll driven wheel 612 from the driving force that device side gear 56 receives.Because the engagement of developer roll driven wheel 612 and feed rolls driven wheel 610, the driving force that transfers to developer roll driven wheel 612 then is transferred to feed rolls driven wheel 610.

In the yellow developing apparatus 54 of as above constructing, toner feed rolls 550 is supplied to developer roll 510 by the toner T that rotation will be contained in the toner container 538.At this moment, by transferring to the driving force of feed rolls driven wheel 610, toner feed rolls 550 is driven in rotation.Along with the rotation of developer roll 510, the toner T that has been supplied to developer roll 510 arrives the rest position of restriction blade 560; Then, when toner T process rest position, toner is recharged and its bed thickness is limited.Along with being further rotated of developer roll 510, charged on the developer roll 510 and the confined toner T of its bed thickness arrive the developing location relative with photoreceptor 20; Then, under alternating field, use toner T to be formed on sub-image on the photoreceptor 20 with development in developing position.Along with being further rotated of developer roll 510, being collected in the developing apparatus and not wiped off through seal element 520 on the toner T process on the developer roll 510 of developing location and by last seal element 520.It should be noted that by transferring to the driving force of developer roll driven wheel 612, developer roll 510 is driven in rotation.In addition, the toner T that also remains on the developer roll 510 can be wiped off by toner feed rolls 550.

The location of gear (part 1)

Described in " background technology ", need correctly drive developer roll 510 with hi-Fix developing apparatus side gear 616 and developer roll driven wheel 612.Developing apparatus side gear 616 and developer roll driven wheel 612 not with hi-Fix developing apparatus therein in, developer roll 510 can not correctly be driven, this will cause incorrect development operation.In addition, be provided with at developing apparatus under the situation of toner feed rolls 550, also need correctly drive toner feed rolls 550 with hi-Fix feed rolls driven wheel 610.In addition, be provided with at developing apparatus under the situation of neutral gear 614, also need be with hi-Fix neutral gear 614.

For the developing apparatus according to present embodiment, the locator meams of these gears will be in following description.As mentioned above, a neutral gear support section 531 and the distolateral developer roll bearing 576a that the bearing 526 of developer roll 510 grades is installed is assembled to respectively in the support section pilot hole 582 and developer roll pilot hole 584 of side plate 580.In this way, set side plate 580 and relative position between the bearing 526 of developer roll 510 etc. is installed.

In addition, a distolateral feed rolls bearing 578a is assembled in the feed rolls pilot hole 586 of side plate 580; In addition, side plate 580 is provided with developing apparatus side gear support section 590, be used for rotatably supporting developing apparatus side gear 616, and bearing 526 is provided with neutral gear support section 531, is used for rotatably supporting neutral gear 614.In this way, set relative position between developing apparatus side gear support section 590, neutral gear support section 531, one distolateral developer roll bearing 576a and the distolateral feed rolls bearing 578a.

In addition, developing apparatus side gear 616 is supported by developing apparatus side gear support section 590, neutral gear 614 is supported by neutral gear support section 531, and developer roll driven wheel 612 and feed rolls driven wheel 610 are separately positioned on the end of developer roll 510 and the end of toner feed rolls 550 (in the axial direction one is distolateral).In this way, set relative position between developing apparatus side gear 616, neutral gear 614, developer roll driven wheel 612 and the feed rolls driven wheel 610.

As mentioned above, the assembly element 525 by bearing 526 and side plate 580 structures plays the location said gear.In addition, because assembly element 525 is made of metal, so can be with the hi-Fix gear.Therefore, developer roll 510 and toner feed rolls 550 can be correctly driven, and the developing apparatus of energy correct execution development operation can be realized thus.

In addition, as mentioned above, the assembly element 525 that is made of metal (side plate 580) has register pin 592, and this register pin 592 that is made of metal equally is assembled in the register pin pilot hole 58 in the main body that is arranged on image processing system.Thus, with respect to the main body of image processing system with the hi-Fix developing apparatus.Therefore, set developing apparatus side gear 616 and be arranged on relative position between the device side gear 56 on the main body of image processing system.Thus, more correctly drive developer roll 510 and toner feed rolls 550.

It should be noted that as Figure 13 and shown in Figure 14, it is distolateral that the support 630 that is used to set relative position between another distolateral developer roll bearing 576b and another the distolateral feed rolls bearing 578b is set in a longitudinal direction another of yellow developing apparatus 54.As shown in figure 15, support 630 has the second recess 630b that the first recess 630a that another distolateral developer roll bearing 576b can be fitted into them and another distolateral feed rolls bearing 578b can be fitted into them.Be assembled among the second recess 630b by another distolateral developer roll bearing 576b is assembled among the first recess 630a and with another distolateral feed rolls bearing 578b, set the relative position between another distolateral developer roll bearing 576b and another the distolateral feed rolls bearing 578b.Like this, can more correctly drive developer roll 510 and toner feed rolls 550.

The location of gear (part 2)

With once more for image processing system, in the locator meams of following description said gear according to present embodiment.As mentioned above, a neutral gear support section 531 and the distolateral developer roll bearing 576a that the bearing 526 of developer roll 510 grades is installed is assembled to respectively in the support section pilot hole 582 and developer roll pilot hole 584 of side plate 580.In this way, set side plate 580 and relative position between the bearing 526 of developer roll 510 etc. is installed.

As mentioned above, assembly element 525 plays the location said gear.In addition, as mentioned above, register pin 592 is arranged on the side plate 580 of assembly element 525, and this register pin 592 is assembled in the register pin pilot hole 58 in the main body that is arranged on image processing system.Thus, with respect to the main body locating development equipment of image processing system.In this way, set developing apparatus side gear 616 and be arranged on relative position between the device side gear 56 on the main body of image processing system.

Described in " background technology ", realize correct development operation in order to make developing apparatus, need correctly drive developer roll 510.On the other hand, in order correctly to drive developer roll 510, need design developing apparatus etc. to make above-mentioned developing apparatus side gear 616 can be correctly receive driving force from the main body of image processing system.Can not be correctly receive under the situation of driving force at developing apparatus side gear 616 from the main body of image processing system, then developing apparatus side gear 616 is difficult to enough driving forces are transferred to developer roll driven wheel 612, this can cause developer roll 510 incorrect drivings, and causes incorrect development operation.

On the other hand, developing apparatus according to present embodiment is provided with bearing 526 and side plate 580, bearing 526 is the examples that are used for " first setting element " of locating development roller driven wheel 612, side plate 580 be used for locating development equipment side gear 616 " second setting element " example and have the register pin 592 that is used for respect to the main body locating development equipment of image processing system.Can prevent the generation of the problems referred to above suitably with this structure.

More specifically, as mentioned above, for example consider the simple assembling that allows developing apparatus, be divided into bearing 526 and side plate 580 as the assembly element 525 of " setting element " example; In the present embodiment, use the bearing 526 have the side plate 580 of register pin 592 rather than not have a register pin 592 to come locating development equipment side gear 616.

If use the bearing 526 that register pin 592 is not set to come locating development equipment side gear 616 (under the situation of reference example), for the relative position between setting device side gear 56 and the developing apparatus side gear 616 correctly, not only need be with respect to the main body of image processing system with the hi-Fix developing apparatus, also need set relative position between side plate 580 and the bearing 526 with high precision.

On the other hand, when the side plate 580 that has a register pin 592 when use comes locating development equipment side gear 616 (under the situation at present embodiment), for the relative position between setting device side gear 56 and the developing apparatus side gear 616 correctly, need not set relative position between side plate 580 and the bearing 526 with high precision.Thus, the relative position between setting device side gear 56 and the developing apparatus side gear 616 reliably.

Thus, according to present embodiment, developing apparatus side gear 616 can be more correctly receives driving force from the main body (that is, from device side gear 56) of image processing system, and enough driving forces can be transferred to developer roll driven wheel 612 thus.Thus, can correctly drive developer roll 510, thereby realize correct development operation.

It should be noted that as Figure 13 and shown in Figure 14, it is distolateral that the support 630 that is used to set relative position between another distolateral developer roll bearing 576b and another the distolateral feed rolls bearing 578b is set in a longitudinal direction another of yellow developing apparatus 54.As shown in figure 15, support 630 has the second recess 630b that the first recess 630a that another distolateral developer roll bearing 576b can be fitted into them and another distolateral feed rolls bearing 578b can be fitted into them.Be assembled among the second recess 630b by another distolateral developer roll bearing 576b is assembled among the first recess 630a and with another distolateral feed rolls bearing 578b, set the relative position between another distolateral developer roll bearing 576b and another the distolateral feed rolls bearing 578b.

The location of toner feed rolls 550 and developer roll 510

Described in " background technology ", realize that in order to make toner feed rolls 550 it with the function that toner T is supplied to developer roll 510, need relative to each other locate toner feed rolls 550 and developer roll 510 with high precision.The toner feed rolls 550 in the developing apparatus and the situation of developer roll 510 are as described below.

As mentioned above, toner feed rolls 550 is mounted to housing 540.More specifically, as the feed rolls pilot hole 546 that feed rolls bearing 578 can be fitted into them, housing 540 has: the distolateral feed rolls pilot hole 546a that a distolateral feed rolls bearing 578a can be fitted into them; And another distolateral feed rolls bearing 578b another distolateral feed rolls pilot hole 546b that can be fitted into them.Toner feed rolls 550 is rotatably supported by housing 540 via being assembled to the distolateral feed rolls bearing 578a among the distolateral feed rolls pilot hole 546a and being assembled to another distolateral feed rolls bearing 578b among another distolateral feed rolls pilot hole 546b.In this way, with respect to housing 540 location toner feed rolls 550.

On the other hand, developer roll 510 is mounted to assembly element 525.More specifically, assembly element 525 has the developer roll pilot hole 530 that can be fitted into them as developer roll bearing 576: the distolateral developer roll pilot hole 530a that a distolateral developer roll bearing 576a can be fitted into them; Another distolateral developer roll pilot hole 530b that can be fitted into them with another distolateral developer roll bearing 576b.Developer roll 510 is rotatably supported by assembly element 525 via being assembled to the distolateral developer roll bearing 576a among the distolateral developer roll pilot hole 530a and being assembled to another distolateral developer roll bearing 576b among another distolateral developer roll pilot hole 530b.In this way, with respect to assembly element 525 locating development rollers 510.

In addition, on in a longitudinal direction one of yellow developing apparatus 54 was distolateral, a distolateral feed rolls bearing 578a who has been assembled among the distolateral feed rolls pilot hole 546a of housing 540 (being positioned with toner feed rolls 550 on it) also was assembled in the feed rolls pilot hole 586 of assembly element 525 (being positioned with developer roll 510 on it).In addition, the pin 544a that is arranged on the housing 540 is assembled in the pin pilot hole 588 of assembly element 525.

In this way, set the assembly element 525 that is positioned with developer roll 510 and be positioned with relative position between the housing 540 of toner feed rolls 550.Thus, set relative position between toner feed rolls 550 and the developer roll 510.

In addition, as Figure 13 and shown in Figure 14, be used to set the relative position between another distolateral developer roll bearing 576b and another the distolateral feed rolls bearing 578b, as " another distolateral setting element " exemplary stent 630 be set in a longitudinal direction another of yellow developing apparatus 54 distolateral on.As shown in figure 15, support 630 has the first recess 630a that another distolateral developer roll bearing 576b can be fitted into them, and another distolateral feed rolls bearing 578b second recess 630b that can be fitted into them.Be assembled among the second recess 630b by another distolateral developer roll bearing 576b is assembled among the first recess 630a and with another distolateral feed rolls bearing 578b, set the relative position between another distolateral developer roll bearing 576b and another the distolateral feed rolls bearing 578b.In this way, the relative position between toner feed rolls 550 and the developer roll 510 will become more reliable.

The usefulness of the developing apparatus of＜present embodiment etc. 〉

As mentioned above, the developing apparatus of present embodiment is provided with: the developer roll 510 that is used to carry toner T; Developer roll 510 is installed to the assembly element 525 on it; Be used for toner T is supplied to the toner feed rolls 550 of developer roll 510; Toner feed rolls 550 is installed to the housing 540 on it; And be used for relative positioning assembly element 525 and housing 540, and be used to take in the feed rolls bearing 578 (that is a distolateral feed rolls bearing 578a) of the axle of toner feed rolls 550.In this way, can realize using the developing apparatus of simple structure with hi-Fix toner feed rolls 550 and developer roll 510.

That is, described in " background technology ", realize the function of its supplying toner T to developer roll 510 in order to make toner feed rolls 550, need be with hi-Fix toner feed rolls 550 and developer roll 510.In addition, preferably realize this location by simple structure.

For the developing apparatus of present embodiment, the feed rolls bearing 578 that is used to take in the axle of toner feed rolls 550 plays relative positioning assembly element 525 and housing 540.Thus, compared to using the situation that does not have related components set relative position with toner feed rolls 550, can high precision set toner feed rolls 550 and be arranged on relative position between the developer roll 510 on the assembly element 525.

In addition, also has the function of relative positioning assembly element 525 and housing 540 because be used to take in the feed rolls bearing 578 of the axle of toner feed rolls 550, so do not need to be provided for setting the application specific architecture element of relative position.Thus, can realize the hi-Fix of toner feed rolls 550 and developer roll 510 with simple structure.

As mentioned above, by above embodiment, can realize using simple structure with developing apparatus of hi-Fix toner feed rolls 550 and developer roll 510 etc.

Other consideration

In the aforementioned embodiment, assembly element 525 is made of the element of two separation, i.e. bearing 526 and side plate 580.But this is not restriction, and assembly element 525 also can be single element.

In addition, in the aforementioned embodiment, developing apparatus has neutral gear 614, and when developing apparatus side gear 616 transferred to developer roll driven wheel 612 with driving force, it played intermediary; Be mounted at developing apparatus under the situation of main body of image processing system, developing apparatus side gear 616 receives driving force and driving force is transferred to developer roll driven wheel 612 via neutral gear 614 from the main body of image processing system; And use assembly element 525 or bearing 526 to locate neutral gear 614.But this is not restriction.For example, the present invention can be applied to the developing apparatus with neutral gear 614, and wherein developing apparatus side gear 616 directly transfers to driving force developer roll driven wheel 612.

In addition, in the aforementioned embodiment, first driving wheel, second driving wheel and the 3rd driving wheel are respectively developer roll driven wheel 612, developing apparatus side gear 616 and neutral gear 614; Assembly element 525 has the developer roll pilot hole 530 that is used for rotatably supporting developer roll 510, be used for rotatably supporting the developing apparatus side gear support section 590 of developing apparatus side gear 616, and the neutral gear support section 531 that is used for rotatably supporting neutral gear 614; By developing apparatus side gear support section 590 developing apparatus side gear 616 that supports and neutral gear 614 engagements of supporting by neutral gear support section 531; And neutral gear 614 and developer roll driven wheel 612 engagements that are arranged on the developer roll 510 that supports by developer roll pilot hole 530.But this is not restriction.For example, first driving wheel, second driving wheel and the 3rd driving wheel can be belt pulleys, and are with and can cross over second driving wheel and the 3rd driving wheel, and cross over the 3rd driving wheel and first driving wheel.

But previous embodiment is preferred under the situation of the structure of simplifying the drive system element.

In addition, in the aforementioned embodiment, developing apparatus has and is used for the toner feed rolls 550 of supplying toner T to developer roll 510, and is arranged on the end of toner feed rolls 550 and is used to drive the feed rolls driven wheel 610 of toner feed rolls 550; Be mounted at developing apparatus under the situation of main body of image processing system, developing apparatus side gear 616 receives driving force and transmits driving force to feed rolls driven wheel 610 from the main body of image processing system; And use assembly element 525 to locate feed rolls driven wheel 610.But this is not restriction.For example, the present invention can be applied to the developing apparatus with toner feed rolls 550 and feed rolls driven wheel 610.

In addition, in developing apparatus, can not use the assembly element 525 that is made of metal, and be to use other element of making by for example resin to locate feed rolls driven wheel 610 with toner feed rolls 550 and feed rolls driven wheel 610.But previous embodiment is preferred because feed rolls driven wheel 610 can correctly be driven thus with hi-Fix and toner feed rolls 550, and can realize thus can correct execution the developing apparatus of development operation.

In addition, in the aforementioned embodiment, first driving wheel and 4 wheel driven driving wheel are respectively developer roll driven wheel 612 and feed rolls driven wheel 610; Assembly element 525 has the feed rolls pilot hole 586 that is used for rotatably supporting toner feed rolls 550; And developer roll driven wheel 612 and feed rolls driven wheel 610 engagements that are arranged on the toner feed rolls 550 that supports by feed rolls pilot hole 586.But this is not restriction.For example, first driving wheel and 4 wheel driven driving wheel can be belt pulleys, and band can be crossed over first driving wheel and 4 wheel driven driving wheel.

In addition, in the aforementioned embodiment, assembly element 525 has the register pin 592 that is used for respect to the main body locating development equipment of image processing system; The main body of image processing system has the register pin pilot hole 58 that register pin 592 can be fitted into them, and the device side gear 56 that transfers a driving force to developing apparatus side gear 616; By register pin 592 is assembled in the register pin pilot hole 58, with respect to the main body locating development equipment of image processing system; And developing apparatus side gear 616 receives driving force and driving force is transferred to developer roll driven wheel 612 from device side gear 56.But this is not restriction.For example, assembly element 525 needn't be provided with register pin 592.

But, aforesaid because set relative position between device side gear 56 and the developing apparatus side gear 616 with high precision, so under the situation that developer roll 510 grades are more suitably driven, previous embodiment is preferred.

In addition, in the aforementioned embodiment, first driving wheel, second driving wheel and the 3rd driving wheel are respectively developer roll driven wheel 612, developing apparatus side gear 616 and neutral gear 614; Bearing 526 has the developer roll pilot hole 530 that is used for rotatably supporting developer roll 510, and the neutral gear support section 531 that is used for rotatably supporting neutral gear 614; Side plate 580 has the developing apparatus side gear support section 590 that is used for rotatably supporting developing apparatus side gear 616; By developing apparatus side gear support section 590 developing apparatus side gear 616 that supports and neutral gear 614 engagements of supporting by neutral gear support section 531; And neutral gear 614 and developer roll driven wheel 612 engagements that are arranged on the developer roll 510 that supports by developer roll pilot hole 530.But this is not restriction.For example, first driving wheel, second driving wheel and the 3rd driving wheel can be belt pulleys, and are with and can cross over second driving wheel and the 3rd driving wheel, and cross over the 3rd driving wheel and first driving wheel.

In addition, in the aforementioned embodiment, the developer roll pilot hole 530 of bearing 526 rotatably supports developer roll 510 via developer roll bearing 576; Side plate 580 has the support section pilot hole 582 that the neutral gear support section 531 of bearing 526 can be fitted into them, and the developer roll bearing 576 developer roll pilot hole 584 that can be fitted into them; And come positioning support 526 and side plate 580 in the developer roll pilot hole 584 by neutral gear support section 531 being assembled in the support section pilot hole 582 and developer roll bearing 576 being assembled to.But this is not restriction.For example, needn't positioning support 526 and side plate 580.

In addition, in the aforementioned embodiment, assembly element 525 and housing 540 have feed rolls pilot hole 586 and the feed rolls pilot hole 546 that feed rolls bearing 578 can be fitted into them respectively; Toner feed rolls 550 is rotatably supported by housing 540 via the feed rolls bearing 578 that is assembled in the feed rolls pilot hole 546; And by being assembled to that feed rolls bearing 578 in the feed rolls pilot hole 546 also is assembled in the feed rolls pilot hole 586 and relative positioning assembly element 525 and housing 540.But this is not restriction.For example, the part of housing can have the function of feed rolls bearing.

In addition, in the aforementioned embodiment, developing apparatus has the developer roll bearing 576 of the axle 510a that is used to take in developer roll 510; Assembly element 525 has the developer roll pilot hole 530 that developer roll bearing 576 can be fitted into them; And developer roll 510 is rotatably supported by assembly element 525 via the developer roll bearing 576 that is assembled in the developer roll pilot hole 530.But this is not restriction.For example, the part of assembly element can have the function of developer roll bearing.

In addition, in the aforementioned embodiment, developing apparatus has as feed rolls bearing 578: be positioned in a longitudinal direction one of yellow developing apparatus 54 on distolateral a distolateral feed rolls bearing 578a and be positioned in a longitudinal direction another of yellow developing apparatus 54 another distolateral feed rolls bearing 578b on distolateral; Housing 540 has as feed rolls pilot hole 546: another distolateral feed rolls pilot hole 546b that the distolateral feed rolls pilot hole 546a that a distolateral feed rolls bearing 578a can be fitted into them and another distolateral feed rolls bearing 578b can be fitted into them; Toner feed rolls 550 is rotatably supported by housing 540 via the distolateral feed rolls bearing 578a and another the distolateral feed rolls bearing 578b that is assembled among another distolateral feed rolls pilot hole 546b that are assembled among the distolateral feed rolls pilot hole 546a; Yellow developing apparatus 54 has as developer roll bearing 576: be positioned in a longitudinal direction one of yellow developing apparatus 54 on distolateral a distolateral developer roll bearing 576a and be positioned in a longitudinal direction another of yellow developing apparatus 54 another distolateral developer roll bearing 576b on distolateral; Assembly element 525 has as developer roll pilot hole 530: another distolateral developer roll pilot hole 530b that the distolateral developer roll pilot hole 530a that a distolateral developer roll bearing 576a can be fitted into them and another distolateral developer roll bearing 576b can be fitted into them; Developer roll 510 is rotatably supported by assembly element 525 via another the distolateral developer roll bearing 576b that is assembled to the distolateral developer roll bearing 576a among the distolateral developer roll pilot hole 530a and be assembled among another distolateral developer roll pilot hole 530b; Assembly element 525 only has the feed rolls pilot hole 586 that a distolateral feed rolls bearing 578a can be fitted into them in a longitudinal direction one of yellow developing apparatus 54 is distolateral; And by being assembled to that a distolateral feed rolls bearing 578a among the distolateral feed rolls pilot hole 546a also is assembled in the feed rolls pilot hole 586 and relative positioning assembly element 525 and housing 540.But this is not restriction.For example, assembly element can have the feed rolls pilot hole that the feed rolls bearing can be fitted into them, and it is distolateral and another is distolateral on both that it is arranged in a longitudinal direction one of yellow developing apparatus; And can be by the feed rolls bearing being assembled in distolateral and another distolateral those feed rolls pilot holes on both of in a longitudinal direction one and relative positioning assembly element and housing.

In addition, in the aforementioned embodiment, on in a longitudinal direction one of yellow developing apparatus 54 was distolateral, pin 544a was arranged on in assembly element 525 and the housing 540 one, and the pin 544a pin pilot hole 588 that can be fitted into them is arranged on another of assembly element 525 and housing 540; And pin 544a is assembled in the pin pilot hole 588.But this is not restriction.For example, pin and pin pilot hole needn't be set.

But previous embodiment is preferred under the more reliable situation in the location of assembly element 525 and housing 540.

In addition, in the aforementioned embodiment, developing apparatus has support 630 in a longitudinal direction another of yellow developing apparatus 54 is distolateral, and it is used for another distolateral feed rolls bearing 578b of relative positioning and another distolateral developer roll bearing 576b.But this is not restriction.For example, support 630 needn't be set.

But previous embodiment is preferred under the situation of the relative position that can set toner feed rolls 550 and developer roll 510 more reliably.

Second embodiment of＜＜＜〉〉〉

The total structure example of image processing system

The summary of laser printer 2010 as the image processing system example (below be also referred to as " printer 2010 ") next, is described with Figure 16 and Figure 17.Figure 16 is used to illustrate developing

cell

2051,2052,2053 and 2054 views with respect to the attaching/detaching structure of printer main body 2010a.Figure 17 shows the view of the main structural components of structure printer 2010.It should be noted that Figure 17 is the cut-open view of getting along the direction vertical with directions X shown in Figure 16.In addition, vertical direction is illustrated by arrow in Figure 16 and Figure 17, and for example, paper supply tray 2092 is disposed in the bottom of printer 2010 and fixation unit 2090 is disposed in the top of printer 2010.

＜attaching/detaching structure 〉

Can be mounted to as the printer main body 2010a of " main body of image processing system " example or from its dismounting with photoreceptor unit 2075 with as the developing

cell

2051,2052,2053 and 2054 of " developing apparatus " example.By with developing

cell

2051,2052,2053 and 2054 and photoreceptor unit 2075 be mounted to printer main body 2010a structure printer 2010.

Printer main body 2010a has: the first opening/closing lid 2010b that can open and close; Can open and close and compare the second opening/closing lid 2010c of the more inside setting of the first opening/closing lid 2010b; Photoreceptor unit attaching/detaching opening 2010d can mount and dismount photoreceptor unit 2075 by this opening; And developing cell construction opening 2010e, can be by this opening installation and

removal developing cell

2051,2052,2053 and 2054.

By opening the first opening/closing lid 2010b, the user can be installed to printer main body 2010a with photoreceptor unit 2075 or it is dismantled from printer main body 2010a through photoreceptor unit attaching/detaching opening 2010d.In addition, by opening the second opening/closing lid 2010c, the user can be installed to printer main body 2010a with developing

cell

2051,2052,2053 and 2054 or it is dismantled from printer main body 2010a through developing cell attaching/detaching opening 2010e.

The structure of＜printer 2010 〉

Description had the developing

cell

2051,2052,2053 that is installed to printer main body 2010a and 2054 and the structure of the printer 2010 of photoreceptor unit 2075.

As shown in figure 17, the printer 2010 according to present embodiment comprises charhing unit 2030, exposing unit 2040, developing cell grip unit 2050, first transfer printing unit 2060, intermediate transfer body 2070 and cleaning blade 2076.These arrangements of components are in the sense of rotation of the photoreceptor 2020 of the conduct that is used to carry sub-image " image carrier " example.Printer 2010 also comprises: second transfer printing unit 2080; Fixation unit 2090; Constitute and with the display unit 2095 of the device of doing the user is notified etc. by display panels; And control module 2100, be used to control these unit etc. and manage their operations as printer.

Photoreceptor 2020 has the cylindrical conductive matrix and is formed on photoconductive layer on the outer surface of conducting base, and can be around its central shaft rotation.In the present embodiment, photoreceptor 2020 is rotated in a clockwise direction shown in arrow among Figure 17.

Charhing unit 2030 is the equipment that is used for photoreceptor 2020 chargings.Exposing unit 2040 is to be used for by laser beam irradiation is formed the equipment of sub-image thereon on the photoreceptor 2020 that has charged.Exposing unit 2040 has for example semiconductor laser, polygon mirror (polygon mirror) and F-θ lens, and according to will be through the laser beam irradiation of ovennodulation to the photoreceptor 20 that has charged from the picture signal of unshowned main frame input, described main frame can for example be PC or word processor.

Developing cell grip unit 2050 is such equipment, this equipment utilization toner T, just be contained in black (K) toner in the black developing cell 2051, be contained in magenta (M) toner in the magenta developing cell 2052, be contained in cyan (C) toner in the blue developer unit 2053 and be contained in yellow (Y) toner in the yellow developing cell 2054, developing is formed on sub-image on the photoreceptor 2020.Toner T is the example that is contained in " developer " in each developing cell that has been moved into precalculated position (developing location) 2051,2052,2053 and 2054.

In the present embodiment, developing cell grip unit 2050 is rotated to allow to move the position of four developing

apparatuses

2051,2052,2053 and 2054.More specifically, developing cell grip unit 2050 utilizes four attaching/detaching

part

2050a, 2050b, 2050c and 2050d to come four developing cells of clamping 2051,2052,2053 and 2054 respectively.Four developing

cells

2051,2052,2053 and 2054 can be along with the rotation (moving) of attaching/detaching part be rotated (moving) around turning axle 2050e.Whenever once rotate, just make selectively different in the developing cell one relative with photoreceptor 2020, one after the other develop and be formed on sub-image on the photoreceptor 2020 thereby use is contained in toner in each of developing

cell

2051,2052,2053 and 2054.It should be noted, will be described further developing cell following.

First transfer printing unit 2060 is to be used for being transferred to equipment on the intermediate transfer body 2070 with being formed on monochromatic toner image on the photoreceptor 2020.When the toner of four kinds of colors during by transfer printing in succession, will form the image of full-color toner in the mode of stack on intermediate transfer body 2070.Intermediate transfer body 2070 is the endless belts to be driven in rotation with photoreceptor 2020 essentially identical circumferential speeds.

Second transfer printing unit 2080 is the equipment that is used for being formed on the recording medium that monochromatic toner image on the intermediate transfer body 2070 or full-color toner image be transferred to for example paper, film or cloth and so on.Fixation unit 2090 be monochromatic toner image on the recording medium that is used for being transferred to such as paper or full-color toner image photographic fixing to medium so that it becomes the equipment of permanent image.

Cleaning blade 2076 is made by rubber and against the surface of photoreceptor 2020.After toner image was transferred on the intermediate transfer body 2070 by first transfer printing unit 2060, cleaning blade 2076 was removed it by wiping the toner that remains on the photoreceptor 20 off.

Photoreceptor unit 2075 is arranged between first transfer printing unit 2060 and the exposing unit 2040, and comprises photoreceptor 2020, charhing unit 2030, cleaning blade 2076 and be used to hold the used toner holding portion (not shown) of the toner that blade 2076 wipes off of being cleaned.

Control module 2100 comprises master controller 2101 and cell controller 2102 as shown in figure 18.Picture signal inputs to master controller 2101, and according to the instruction based on these picture signals, cell controller 2102 each said units of control etc. are to form image.

The operation of＜printer 2010 〉

Next also will the as above operation of the printer 2010 of structure be described with reference to other construction package.

When the picture signal from unshowned main frame is input to the master controller 2101 of printer 2010 by interface (I/F) 2112, according to the instruction that comes autonomous controller 2101, photoreceptor 2020, the developer roll 2510 and the intermediate transfer body 2070 that are arranged in each developing

cell

2051,2052,2053 and 2054 rotate under the control of cell controller 102.When rotation, photoreceptor 2020 is recharged unit 2030 at charge position and charges constantly.

Along with the rotation of photoreceptor 2020, the charging of photoreceptor 2020 zone arrives exposure position.In this zone, form and be used for for example corresponding sub-image of image information of first color of yellow Y by exposing unit 2040.The yellow developing cell 2054 that developing cell grip unit 2050 will be held yellow (Y) toner is positioned at the developing position relative with photoreceptor 2020.

Along with the rotation of photoreceptor 2020, the sub-image that is formed on the photoreceptor 2020 arrives developing location, and is developed by yellow developing cell 2054 usefulness Yellow toners.Thereby on photoreceptor 2020, form yellow toner image.

Along with the rotation of photoreceptor 2020, the yellow toner image that is formed on the photoreceptor 2020 arrives first transfer position, and is transferred on the intermediate transfer body 2070 by first transfer printing unit 2060.At this moment, apply opposite polarity first transfer voltage that polarity and toner T are charged to first transfer printing unit 2060.It should be noted that during above-mentioned process, second transfer printing unit 2080 keeps separating with intermediate transfer body 2070.

By second color, the 3rd color and the 4th color are repeated said process, be transferred to intermediate transfer body 2070 in overlapping mode corresponding to the toner image of four kinds of colors of picture signal separately.As a result, on intermediate transfer body 2070, form full-color toner image.

Along with the rotation of intermediate transfer body 2070, the full-color toner image that is formed on the intermediate transfer body 2070 arrives second transfer position, and is transferred on the recording medium by second transfer printing unit 2080.It should be noted, recording medium from paper supply tray 2092 via paper feed roller 2094 with stop that roller 2096 is transported to second transfer printing unit 2080.During transfer operation, apply second transfer voltage to second transfer printing unit 2080, and second transfer printing unit 2080 is pressed against intermediate transfer body 2070.

Be transferred to full-color toner image on the recording medium and heated by fixation unit 2090 and pressurize, and by photographic fixing to recording medium.On the other hand, after photoreceptor 2020 was through first transfer position, the toner that the adheres to photoreceptor 2020 surfaces blade 2076 that is cleaned was wiped off, and photoreceptor 2020 is prepared charging to form next sub-image.The toner of wiping off is collected in the used toner holding portion.

The control module general introduction

Next with reference to the structure of Figure 18 description control unit 2100.Figure 18 shows the block scheme of the control module 2100 of printer 2010.Control module 2100 comprises master controller 2101 and cell controller 2102.

The interface 2112 that master controller 2101 comprises CPU 2111, be used for connecting with unshowned computing machine, be used to store from the video memory 2113 of the picture signal of computing machine input and the master controller side storer of forming by for example electrically rewritable EEPROM 2114a, the RAM 2114b that can write the various programs that are used to control and programming ROM etc. 2114.

CPU 2111 management of master controller 2101 will via the view data of interface input write video memory 2113 and from video memory 2113 with its control of reading, and according to overall control from the CPU 2120 management by synchronization devices of the control signal of computing machine input and cell controller 2102.

The cell controller side storer 2116 that cell controller 2102 for example comprises CPU 2120, be made up of for example electrically rewritable EEPROM 2116a, the RAM that can write the various programs that are used for controlling and programming ROM etc. and be used to drive and the various Drive and Control Circuit of the unit (that is, charhing unit 2030, exposing unit 2040, developing cell grip unit 2050, first transfer printing unit 2060, photoreceptor unit 2075, second transfer printing unit 2080, fixation unit 2090 and display unit 2095) of control device main body.。

The CPU 2120 of cell controller 2102 is electrically connected to each Drive and Control Circuit and basis comes the control signal of the CPU 2111 of autonomous controller 2101 to come the controlling and driving control circuit.More specifically, CPU 2120 is according to each unit of signal controlling that receives from master controller 2101, and the signal that is arranged on sensor in each unit etc. by reception detects the state of each unit and developing cell grip unit 2050 simultaneously.

In addition, the CPU 2120 of cell controller 2102 is connected to non-volatile type memorizer element 2122 (hereinafter referred to as " device side storer ") via serial line interface (I/F) 2121, and it for example is a serial EEPROM.For the required data storage of control device in device side storer 2122.CPU2120 not only is connected to device side storer 2122, also via serial line interface 2121, is connected to the developing

cell side storer

2051a, 2052a, 2053a and the 2054a that are separately positioned on developing

cell

2051,2052,2053 and 2054.Thus, can be between device side storer 2122 and developing

cell side storer

2051a, 2052a, 2053a and 2054a swap data, and chip selection signal CS can also be input to developing

cell side storer

2051a, 2052a, 2053a and 2054a via input/output end port 2123.

The developing apparatus general introduction

Next will the inner structure of developing

cell

2051,2052,2053 and 2054, the structure and the operation of drive part be described referring to figures 19 through Figure 27.Figure 19 shows the view that yellow developing cell 2054 is mounted to the state of attaching/detaching zone 2050d.Figure 20 is the stereographic map of yellow developing apparatus 2054.Figure 21 shows the cut-open view of the main structural components of yellow developing apparatus 2054.Figure 22 shows the stereographic map of the drive part of yellow developing apparatus 2054.Figure 23 shows the stereographic map of the drive part that lid 2630 is removed.Figure 24 shows the front elevation of the drive part that lid 2630 is removed.Figure 25 shows the side view of the drive part that lid 2630 is removed.Figure 26 is the stereographic map of lid 2630.Figure 27 shows the view of lid 2630 dorsal parts.

It should be noted that cut-open view shown in Figure 21 is the xsect of the yellow developing cell 2054 got along the plane vertical with longitudinal direction shown in Figure 20.In addition, in Figure 21, indicate vertical direction as Figure 16 with arrow, for example, the central shaft of developer roll 2510 is positioned at the central shaft below of photoreceptor 2020.In addition, yellow developing cell 2054 is shown as the state that is positioned on the developing location relative with photoreceptor 2020 that is in Figure 21.

Can be equipped with on the developing cell grip unit 2050: the black developing cell 2051 that holds black (K) toner; The magenta developing cell 2052 that holds magenta (M) toner; The cyan developing cell 2053 that holds cyan (C) toner; With the yellow developing cell 2054 that holds yellow (Y) toner.Because the inner structure of developing cell, the structure and the operation of drive part are identical, so following will only being described yellow developing cell 2054.

The inner structure of＜yellow developing cell 2054 〉

At first, will the inner structure of yellow developing cell 2054 be described.Yellow developing cell 2054 has developer roll 2510, toner accommodating part 2530, housing 2540, toner feed rolls 2550, restriction blade 2560 and the seal element 2520 as " developer carrier " example.

Developer roll 2510 carrying toner T also are sent to developing location with respect to photoreceptor 2020.Developer roll 2510 is made of metal, and for example it is by the ferroalloy manufacturing of the aluminium alloy of aluminium alloy 5056 or aluminium alloy 6063 and so on or STKM and so on, and as required, roller 510 is coated with for example nickel coating or chrome plating.

As shown in figure 23, developer roll 2510 has a 2510a and major diameter part 2510b.Developer roll 2510 is rotatably supported by its 2510a, and axle 2510a is supported by bearing 2526 via two developer roll bearing (not shown) on the two ends that are located at longitudinal direction.As shown in figure 21, developer roll 2510 is with direction (counter clockwise direction in Figure 21) rotation opposite with the sense of rotation (clockwise direction among Figure 21) of photoreceptor 2020.The central shaft of roller 2510 is positioned at the below of the central shaft of photoreceptor 2020.

As shown in figure 23, at (in a longitudinal direction one distolateral on) on the end of developer roll 2510, be provided with the developer roll driven wheel 2613 that is used to rotate developer roll 2510 that shows row as " the 4th gear ".Developer roll driven wheel 2613 is cross helical gears, and as shown in figure 24, itself and the following neutral gear that further describes 2612 mesh.

In addition, as shown in figure 21, under the relative state of yellow developing cell 2054 and photoreceptor 2020, between developer roll 2510 and photoreceptor 2020, there is the slit.That is, yellow developing cell 2054 develops with contactless state and is formed on sub-image on the photoreceptor 2020.It should be noted, be formed on sub-image on the photoreceptor 2020 when developing, between developer roll 2510 and photoreceptor 2020, produce alternating field.

Seal element 2520 prevent in the yellow developing cell 2054 toner T from its be spilled over to outside and will be toner T by developing location collect the developing cell and it does not wiped off.Seal element 2520 is seals of being made by for example polyethylene film.Seal element 2520 is supported by sealing support metal plate 2522, and is mounted to housing 2540 via sealing support metal plate 2522.On a side opposite of seal element 2520, be provided with the sealing thrust elements of making by for example polyester foam (Moltoprene) 2524 with developer roll 2,510 one sides.By the elastic force of sealing thrust elements 2524, seal element 2520 is pressed against on the developer roll 2510.It should be noted, seal element 2520 against the position of developer roll 2510 above the central shaft of developer roll 2510.

Housing 2540 is by the housing parts with a plurality of integrally moulded moulding, and promptly upper case portion 2542 and lower house part 2544 weld together and make.By from inwall inwardly (Figure 21 on/following direction) outstanding to separate the partition wall 2545 of toner T, the inside of housing 2540 is divided into two toner accommodating parts 2530, that is, the first toner accommodating part 2530a and the second toner accommodating part 2530b.It should be noted that shell nozzle 2572 is arranged on the bottom of housing 2540, and developer roll 2510 makes the part of roller developer roll 2510 expose from this opening with respect to shell nozzle 2572 layouts.

Toner accommodating part 2530 can be provided with the agitating element that is used for agitation of toner T.But in the present embodiment, in toner container 2530, agitating element is not set, because each developing cell (that is, black developing cell 2051, magenta developing cell 2052, cyan developing cell 2053 and yellow developing cell 2054) all rotates along with the rotation of developing cell grip unit 2050 and stirs toner T in each developing cell thus.

As mentioned above, toner feed rolls 2550 is arranged among the first toner accommodating part 2530a, and the toner T that will be contained among the first toner accommodating part 2530a is supplied to developer roll 2510, and from remaining in the toner T on the developer roll 2510 after developer roll 2510 is wiped development off.Toner feed rolls 2550 is made by for example polyurethane foam, and with elastic deformation against developer roll 2510.Toner feed rolls 2550 is arranged in the bottom of toner accommodating part 2530.By toner feed rolls 2550, the toner T that is contained in the toner accommodating part 2530 is supplied to developer roll 2510 in toner accommodating part 2530 bottoms.

Toner feed rolls 2550 is rotatably supported by its axle by two feed rolls bearing (not shown), and this axle is supported on the housing 2540.Toner feed rolls 2550 is rotated with the direction (clockwise direction among Figure 21) opposite with the sense of rotation (counter clockwise direction among Figure 21) of developer roll 2510.Its central shaft is positioned at the rotary middle spindle below of developer roll 2510.

In addition, as shown in figure 23,, be provided with the feed rolls driven wheel 2614 that is used to rotate toner feed rolls 2550 at (on the longitudinal direction one distolateral on) on the end of toner feed rolls 2550.Feed rolls driven wheel 2614 is cross helical gears, and meshes with developer roll driven wheel 2613 as shown in figure 24.

Limit the thickness that 2560 couples of toner T by developer roll 2510 carryings of blade charge and limit the toner T layer that is carried by developer roll 2510.Restriction blade 2560 comprises rubber part 2560a and rubber part 2560b.Rubber part 2560a is made by for example silicon rubber or ammonia ester rubber (urethanerubber).Rubber part 2560b is the thin plate with spring-like characteristic, and is made by for example phosphor bronze or stainless steel.Rubber part 2560a is supported by rubber part 2560b.Rubber part 2560b by the state that blade support sheet metal 2562 supports, is mounted to housing 2540 via blade support sheet metal 2562 with one end thereof.In addition, the blade backing element of for example being made by polyester foam (Moltoprene) 2570 is arranged on the side opposite with developer roll 2510 sides of restriction blade 2560.

Herein, by the elastic force that the bending by rubber part 2560b causes, rubber part 2560a is compressed against on the developer roll 2510.In addition, blade backing element 2570 prevents that toner T from entering between rubber part 2560b and the housing 2540 so that the elastic force that the bending of rubber part 2560b causes is more stable.In addition, by from the dead astern of rubber part 2560a on the direction of developer roll 2510 to the rubber part 2560a application of force, blade backing element 2570 is pressed against rubber part 2560a on the developer roll 2510.Thus, blade backing element 2570 plays a part to make rubber part 2560a more equably against developer roll 2510.

Restriction blade 2560 with the opposite ends of supporting by blade support sheet metal 2562, end, the top of promptly limiting blade 2560 is not placed as and contact with developer roll 2510, but contacts developer roll 2510 in the part of leaving preset distance place, top with certain width.That is, the restriction blade 2560 not in its edge against developer roll 2510, but near its core place against roller 2510.In addition, restriction blade 2560 is arranged so that the upstream side of its top end face to the sense of rotation of developer roll 2510, and forms what is called oppositely against (counter-abutment) with respect to roller 2510 thus.It should be noted, restriction blade 2560 against the rest position of developer roll 2510 below the central shaft of developer roll 2510 and also below the central shaft of toner feed rolls 2550.

The structure of the drive part of＜yellow developing cell 2054 〉

Next, will the structure of the drive part of yellow developing cell 2054 be described.As Figure 22 and shown in Figure 23, the drive part of yellow developing cell 2054 has various gears and lid 2630.It should be noted, below refer to the part that yellow developing cell 2054 does not comprise drive part as the term " main body of developing cell " of " main body of developing cell " example.Yellow developing cell 2054 is provided with as various gears: above-mentioned developer roll driven wheel 2613 and feed rolls driven wheel 2614, and as the developing cell side gear 2611 of " second gear " example with as the neutral gear 2612 of " the 3rd gear " example.

Developing cell side gear 2611 is gears as described below: when yellow developing cell 2054 is mounted to attaching/detaching part 2050d (printer main body 2010a), from printer main body 2010a (more specifically, from being arranged on conduct " first gear " the exemplary devices side gear 2056 on the printer main body 2010a) receive driving force, and driving force is transferred to developer roll driven wheel 2613 and feed rolls driven wheel 2614.Developing cell side gear 2611 is cross helical gears.As shown in figure 19, when yellow developing cell 2054 is mounted to attaching/detaching part 2050d (printer main body 2010a) and when yellow developing cell 2054 moves to precalculated position (developing location) along with moving of attaching/detaching part 2050d, developing cell side gear 2611 be arranged on device side gear 2056 engagements that are similarly cross helical gear on the printer main body 2010a.The driving force that will be from the be arranged on printer main body 2010a unshowned drive source of device side gear 2056 receives is delivered to developing cell side gear 2611.It should be noted, on device side gear 2056, applied railway grease.

As shown in figure 22, developing cell side gear 2611 is covered by lid 2630 from lid opening 2633 exposed state with its part.Developing cell side gear 2611 has first round toothed portion 2611a and second and takes turns toothed portion 2611b, its first round, toothed portion 2611a was covered by lid 2630 from lid opening 2633 exposed state with its part, and it second is taken turns toothed portion 2611b and expose from lid opening 2633.When developing

cell

2051,2052,2053 and 2054 was mounted to printer main body 2010a, first round toothed portion 2611a can be via lid opening 2633 and device side gear 2056 engagements that are arranged on the printer main body 2010a.Second takes turns toothed portion 2611b and is arranged on gear (the being neutral gear 2612 in this embodiment) engagement that is different from developing cell side gear 2611 in the developing cell.

In addition, be applied to the first round toothed portion 2611a of developing cell side gear 2611 as the railway grease 2670 of " lubricant " example.Be mounted under printer main body 2010a and the state before developing cell side gear 2611 rotates at yellow developing cell 2054, railway grease 2670 only is applied to first round toothed portion 2611a not on lid opening 2633 exposed portions.Railway grease 2670 is divided into a plurality of parts (three parts, i.e. 2670a, 2670b and 2670c in the present embodiment) and is applied to first round toothed portion 2611a.

Developing cell side gear 2611 is rotatably supported by the developing cell side gear axle 2593 as " second gear shaft " example.Developing cell side gear axle 2593 is supported on by supported part 2593a on the side plate 2580 of main body of developing cell.In addition, lid 2630 supports the part 2593b of developing cell side gear axle 2593, and this part is positioned at respect on developing cell side gear 2611 side opposite with supported part 2593a side.Opposition side part 2593b be arranged on another of developing cell side gear axle 2593 distolateral on.

Neutral gear 2612 is when developing cell side gear 2611 transfers to developer roll driven wheel 2613 and feed rolls driven wheel 2614 with driving force, plays the gear of intermediation.Promptly, be mounted at yellow developing cell 2054 under the state of attaching/detaching part attaching/detaching part 2050d (printer main body 2010a), developing cell side gear 2611 receives driving force and this driving force is transferred to developer roll driven wheel 2613 and feed rolls driven wheel 2614 via neutral gear 2612 from printer main body 2010a.

Neutral gear 2612 is cross helical gears, and takes turns

toothed portion

2611b and 2613 engagements of developer roll driven wheel with second of developing cell side gear 2611.Neutral gear 2612 is rotatably supported by the intermediate gear shaft 2594 as " the 3rd gear shaft " example.Intermediate gear shaft 2594 is supported on the side plate 2580 of developing unit body by the second supported part 2594a.The second supported part 2594a be arranged on of intermediate gear shaft 2594 distolateral on.In addition, lid 2630 supports the part 2594b of intermediate gear shaft 2594, and this part 2594b is positioned at respect on neutral gear 2612 side opposite with the second supported part 2594a side.Opposition side part 2594b be arranged on another of intermediate gear shaft 2594 distolateral on.

As shown in figure 22, by covering following gear, lid 2630 protection developing cell side gears 2611, neutral gear 2612, developer roll driven wheel 2613 and feed rolls driven wheel 2614.It should be noted that as shown in figure 26, lid 2630 has lid opening 2633, and lid opening 2633 is along the excircle setting of developing cell side gear 2611 (first round toothed portion 2611a).Thus, the part of first round toothed portion 2611a exposes from lid opening 2633.

In addition, as shown in figure 27, lid 2630 has axle support section 2635, it supports the part 2593b of developing cell side gear axle 2593, this part 2593b is positioned at respect on developing cell side gear 2611 side opposite with supported part 2593a side (seeing Figure 25), promptly another of developing cell side gear axle 2593 distolateral on.Axle support section 2635 has the first hole 2635a that developing cell side gear axle 2593 can be fitted into them.The whole periphery of the opposition side part 2593b of developing cell side gear axle 2593 can be assembled among the first hole 2635a.By developing cell side gear axle 2593 is assembled to the first hole 2635a, developing cell side gear axle 2593 is supported by axle support section 2635.In addition, axle support section 2635 restriction developing cell side gears 2611 are from supported part 2593a moving on the direction (this direction is illustrated by the arrow D Figure 25) of opposition side part 2593b.

In addition, as shown in figure 27, lid 2630 has second axle support section 2636, it supports the part 2594b of intermediate gear shaft 2594, this part 2594b is positioned at respect on neutral gear 2612 side opposite with the second supported part 2594a side (seeing Figure 25), promptly another of intermediate gear shaft 2594 distolateral on.Second axle support section 2636 has the second hole 2636a that intermediate gear shaft 2594 can be fitted into them.The outer peripheral portion of the opposition side part 2594b of intermediate gear shaft 2594 can be assembled among the second hole 2636a.By intermediate gear shaft 2594 being assembled among the second hole 2636a, intermediate gear shaft 2594 is supported by second axle support section 2636.In addition, second axle support section 2636 restriction neutral gears 2612 are from the second supported part 2594a moving on the direction (this direction is illustrated by the arrow D Figure 25) of opposition side part 2594b.

When developing cell side gear axle 2593 is assembled among the first hole 2635a and intermediate gear shaft 2594 when being assembled to the second hole 2636a, lid 2630 is restricted with respect to the mobile of developing unit body.Thus, developing cell side gear axle 2593 and intermediate gear shaft 2594 also have the function of " the lid setting element " that be used to locate lid 2630.

In addition, lid 2630 has the pin-and-hole 2637 that register pin 2592 can pass.Register pin 2592 is used for respect to printer main body 2010a position yellow developing cell 2054.By register pin 2592 being assembled in the pilot hole 2058 that is arranged among the printer main body 2010a, with respect to printer main body 2010a position yellow developing cell 2054.A distolateral side plate 2580 that is fixed to of register pin 2592.

It should be noted, railway grease also can be applied to second of developing cell side gear 2611 and take turns on toothed portion 2611b, neutral gear 2612, developer roll driven wheel 2613 and the feed rolls driven wheel 2614, but railway grease is not applied on it in the present embodiment.

The operation of＜yellow developing cell 2054 〉

The operation of yellow developing cell 2054 will be described below.In the yellow developing cell 2054 of as above constructing, toner feed rolls 2550 is supplied to developer roll 2510 by the toner T that rotation will be contained in the toner container 2530.At this moment, by transferring to the driving force of feed rolls driven wheel 2614, toner feed rolls 2550 is driven in rotation.

Along with the rotation of developer roll 2510, the toner T that has been supplied to developer roll 2510 arrives the rest position of restriction blade 2560; Then, when toner T process rest position, toner is recharged and its bed thickness is limited.Along with being further rotated of developer roll 2510, on developer roll 2510, charged and the confined toner T of bed thickness arrive the developing location relative with photoreceptor 2020; Then, under alternating field, use toner T to be formed on sub-image on the photoreceptor 2020 with development in developing position.

Along with being further rotated of developer roll 2510, on developer roll 2510, being collected in the developing apparatus and not wiped off through seal element 2520 and by seal element 2520 through the toner T of developing location.It should be noted that by transferring to the driving force of developer roll driven wheel 2613, developer roll 2510 is driven in rotation.Then, the toner T that still remains on the developer roll 2510 can be wiped off by toner feed rolls 2550.

It should be noted, as mentioned above, because developing cell side gear 2611 transfers to feed rolls driven wheel 2614 and developer roll driven wheel 2613 with driving force via neutral gear 2612, so developing cell side gear 2611 also will rotate when toner feed rolls 2550 and developer roll 2510 rotations.When developing cell side gear 2611 rotation, railway grease 2670a, the 2670b and the 2670c (before rotation) that are applied on three parts of first round toothed portion 2611a of developing cell side gear 2611 will scatter.More specifically, when developing cell side gear 2611 rotation,

railway grease

2670a, 2670b and 2670c will move, and part railway grease first round toothed portion 2611a and device side gear 2056 be meshing with each other the part located near accumulation.Then, along with being further rotated of developing cell side gear 2611, will adhere to the part that before rotation, does not apply railway grease on the first round toothed portion 2611a near the railway grease of accumulation this part.Thus, railway grease will scatter and be distributed on whole tooth of first round toothed portion 2611a.

Usefulness according to the developing cell of present embodiment

Developing cell 2051 according to present embodiment, 2052,2053 and 2054 (developing apparatuses), can be mounted to the movably attaching/detaching part 2050a that is arranged among the printer main body 2010a (main body of image processing system), 2050b, 2050c and 2050d also can be from the developing cells 2051 of its dismounting, 2052,2053 and 2054, have: developing cell side gear 2611 (second gear), when developing cell be in the state that is mounted to printer main body 2010a and when developing cell moves to the precalculated position along with the mobile of attaching/detaching part (for example, when yellow developing cell 2054 is mounted to printer main body 2010a and yellow developing cell 2054 when moving to the precalculated position along with moving of attaching/detaching part 2050d), itself and device side gear 2056 (first gear) engagement that is arranged among the printer main body 2010a; Developing cell side gear axle 2593 (second gear shaft), it is supported on the main body (main body of developing apparatus) of developing cell by supported part 2593a, and supports developing cell side gear 2611; Lid 2630, the part 2593b that it covers the part of developing cell side gear 2611 and supports developing cell side gear axle 2593, this part 2593b is positioned at respect on developing cell side gear 2611 side opposite with supported part 2593a side.In this way, can suitably prevent the bending of developing cell side gear axle 2593.This will be at following detailed description.

At first, will be described comparing example.In this comparative example, the developing cell side gear axle 2593 that supports developing cell side gear 2611 is supported on the main body of developing cell by supported part 2593a, but the part of developing cell side gear axle 2593 on a side opposite with supported part 2593a side with respect to developing cell side gear 2611 do not have supported.That is, support developing cell side gear axle 2593 with so-called cantilevered fashion.

In the case, owing to when developing cell along with attaching/detaching part move to the precalculated position time developing cell side gear 2611 contact with device side gear 2056 on being arranged on printer main body 2010a, have the possibility of developing cell side gear axle 2593 bendings.That is, because the impact that causes when developing cell side gear 2611 contacts with device side gear 2056, external force will be applied to developing cell side gear 2611 via device side gear 2056.Owing to this external force that is applied to developing cell side gear axle 2593 via developing cell side gear 2611, developing cell side gear axle 2593 may be crooked.If the quantitative change of developing cell side gear axle 2593 bendings is big, then the developing cell side gear 2611 that is supported by developing cell side gear axle 2593 can not correctly mesh with other gear (for example, the device side gear 2056).

On the other hand, in the present embodiment, as Figure 22 and shown in Figure 23, the lid 2630 that covers developing cell side gear 2611 parts supports the part 2593b (it is supported on the main body of developing cell by supported part 2593a) of developing cell side gear axle 2593, and this part is positioned at respect on developing cell side gear 2611 side opposite with supported part 2593a side.In this way, support developing cell side gear axle 2593 by so-called dual-gripper (all supporting) in both sides.

When supporting developing cell side gear axle 2593 by so-called dual-gripper, with the supported situation of so-called cantilevered fashion, the rigidity of developing cell side gear axle 2593 becomes bigger compared to it.Therefore, even when external force is applied to developing cell side gear axle 2593, it is not flexible yet.As a result, can prevent when developing cell side gear axle 2593 contacts with device side gear 2056, by the bending of the developing cell side gear axle 2593 that causes via developing cell side gear 2611 externally applied forces.

As mentioned above, by using lid 2630 to support the part 2593b of developing cell side gear axle 2593 (it is supported on the main body of developing cell by supported part 2593a), this part 2593b is positioned at respect on developing cell side gear 2611 side opposite with supported part 2593a side, support developing cell side gear axle 2593 by so-called dual-gripper, so its rigidity becomes bigger.Thus, can suitably prevent the bending of developing cell side gear axle 2593.

Other consideration

In the above-described embodiments, as Figure 25 and shown in Figure 26, lid 2630 has a part (this part is positioned at respect on developing cell side gear 2611 side opposite with supported part 2593a side) that supports developing cell side gear axle 2593 and limits developing cell side gear 2611 from the mobile axle support section 2635 of supported part 2593a on the direction of opposition side part 2593b.But this is not restriction.For example, the element (for example clasp) that is different from lid 2630 can limit developing cell side gear 2611 from supported part 2593a moving on the direction (being called " direction comes off ") of opposition side part 2593b.

In order to prevent that developing cell side gear 2611 from moving and come off from developing cell side gear axle 2593, preferably is provided for limiting the element that developing cell side gear 2611 moves on the direction that comes off on the direction that comes off.The lid 2630 that has axle support section 2635 by setting, this axle support section 2635 has the function that supports developing cell side gear axle 2593 and limit the function that developing cell side gear 2611 moves on the direction that comes off, just do not need to be provided for separately limiting the element that developing cell side gear 2611 moves on the direction that comes off, therefore can the minimizing quantitatively of implementation structure parts.Previous embodiment is preferred thus.

In addition, in the aforementioned embodiment, as shown in figure 25, supported part 2593a be arranged on of developing cell side gear axle 2593 distolateral on; And another of the axle support section 2635 support developing cell side gear axles 2593 of lid 2630 is distolateral.But this is not restriction.For example, supported part 2593a can be set near the centre of developing cell side gear axle 2593, and axle support section 2635 can support near the part in centre of developing cell side gear axle 2593.

In addition, in the aforementioned embodiment, as shown in figure 25, developing

cell

2051,2052,2053 and 2054 has the neutral gear 2612 (the 3rd gear) with 2611 engagements of developing cell side gear, and is supported on the intermediate gear shaft 2594 (the 3rd gear shaft) that printer main body 2010a went up and supported neutral gear 2612 by the second supported part 2594a.But this is not restriction.For example, developing cell not necessarily needs to be provided with neutral gear 2612 and intermediate gear shaft 2594.

In addition, in the aforementioned embodiment, as shown in figure 25, lid 2630 supports the part 2594b of intermediate gear shaft 2594, and this part 2594b is positioned at respect on neutral gear 2612 side opposite with the second supported part 2594a side.But this is not restriction.For example, lid 2630 not necessarily supports intermediate gear shaft 2594.

But, support at lid 2630 under the situation of part 2594b (this part 2594b is positioned on the side opposite with the second supported part 2594a side with respect to neutral gear 2612) of intermediate gear shafts 2594, because intermediate gear shaft 2594 is all supported with respect to the two ends of neutral gear 2612, promptly support, so improved the rigidity of intermediate gear shaft 2594 by so-called dual-gripper.Thus, can prevent the bending of intermediate gear shaft 2594.Therefore previous embodiment is preferred.

In addition, in the aforementioned embodiment, as Figure 25 and shown in Figure 26, lid 2630 has the part 2594b (this part 2594b is positioned at respect on neutral gear 2612 side opposite with the second supported part 2594a side) that supports intermediate gear shaft 2594 and limits neutral gear 2612 from mobile second axle support section 2636 of the second supported part 2594a on the direction of opposition side part 2594b.But this is not restriction.For example, the element (for example clasp) that is different from lid 2630 can limit neutral gear 2612 from the second supported part 2594a moving on the direction of opposition side part 2594b (being called " second come off direction ").

Move on the direction and come off in order to prevent that neutral gear 2612 from coming off second, preferably be provided for limiting neutral gear 2612 at second element that comes off and move on the direction from intermediate gear shaft 2594.The lid 2630 that has second axle support section 2636 by setting, this second axle support section 2636 has the function that supports intermediate gear shaft 2594 and restriction neutral gear 2612 in second function that comes off and move on the direction, just do not need to be provided for separately to limit neutral gear 2612 at second element that comes off and move on the direction, therefore can the minimizing quantitatively of implementation structure assembly.Previous embodiment is preferred thus.

In addition, in the aforementioned embodiment, as Figure 26 and shown in Figure 27, axle support section 2635 has the first hole 2635a that developing cell side gear axle 2593 can be fitted into them; Has the second hole 2636a that intermediate gear shaft 2594 can be fitted into them with second axle support section 2636.In addition, axle support section 2635 supports developing cell side gear axle 2593 by developing cell side gear axle 2593 is assembled among the first hole 2635a; And second axle support section 2636 supports intermediate gear shaft 2594 by intermediate gear shaft 2594 is assembled among the second hole 2636a.But this is not restriction.For example, the axle support section 2635 and second axle support section 2636 can use the structure that is different from the hole to support developing cell side gear axle 2593 and intermediate gear shaft 2594.

But, use the hole to support under the situation of developing cell side gear axle 2593 and intermediate gear shaft 2594 respectively in the axle support section 2635 and second axle support section 2636, axle support section 2635 can support developing cell side gear axle 2593 reliably and second axle support section 2636 can support intermediate gear shaft 2594 reliably.Thus, can more effectively prevent the bending of developing cell side gear axle 2593 and intermediate gear shaft 2594.Previous embodiment is preferred thus.

In addition, in the aforementioned embodiment, as shown in figure 22, developing cell side gear axle 2593 and intermediate gear shaft 2594 are used from the effect of the lid setting element of location lid 2630.But this is not restriction.For example, can use the element (for example being fixed to the pin of the main body of developing cell) that is different from developing cell side gear axle 2593 and intermediate gear shaft 2594 to locate lid 2630.

In order to prevent that lid 2630 from disturbing developing cell side gear 2611 and neutral gear 2612, need accurately locate lid 2630 with respect to the main body of developing cell.If the function of developing cell

side gear axle

2593 and 2594 lid setting elements of intermediate gear shaft, then developing cell side gear axle 2593 and intermediate gear shaft 2594 can have the function of Support Gear concurrently and determine the function of lid 2630 positions with respect to the main body of developing cell.As a result, do not need the lid setting element is set separately, and thus can the minimizing quantitatively of implementation structure assembly.Previous embodiment is preferred thus.

In addition, in the aforementioned embodiment, as shown in figure 23, developing apparatus has the developer roll 2510 (developer carrier) that is used to carry toner T (developer), and be arranged in a longitudinal direction one of developer roll 2510 distolateral go up and with the developer roll driven wheel 2613 (the 4th gear) of neutral gear 2612 engagements.But this is not restriction.

In neutral gear 2612 and developer roll driven wheel 2613 joggled structure, when 2594 bendings of center tooth wheel shaft, neutral gear 2612 may not correctly mesh with developer roll driven wheel 2613, and this may cause the inhomogeneous of developer roll 2510 rotations.The inhomogeneous defective that then causes in the image of this rotation.On the other hand,, can prevent the bending of intermediate gear shaft 2594 by supporting intermediate gear shafts 2594 with lid 2630, and thus can be so that neutral gear 2612 correctly meshes with developer roll driven wheel 2613, and make developer roll 2510 correctly rotate.Previous embodiment is preferred thus.

In addition, in the aforementioned embodiment, as shown in figure 17, when developing cell moved to the precalculated position, developing

cell

2051,2052,2053 and 2054 was developed in the photoreceptor 2020 (image carrier) that is arranged among the printer main body 2010a and goes up the sub-image of carrying.But this is not restriction.For example, developing

cell

2051,2052,2053 and 2054 can be carried out and the different operation of development sub-image when it moves to the precalculated position.

But developing

cell

2051,2052,2053 and a major function of 2054 are the sub-images that is developed in carrying on the photoreceptor 2020.Therefore, developing cell moves to the precalculated position and developing cell side gear 2611 is higher with the frequency that device side gear 2056 contacts, and the possibility of developing cell side gear axle 2593 bendings is higher thus.Be developed at developing cell when developing apparatus moves to the precalculated position under the sub-image situation of carrying on the photoreceptor 2020, can more effectively realize suitably to prevent the effect of developing cell side gear axle 2593 bendings.Previous embodiment is preferred thus.

Other embodiment of＜＜＜〉〉〉

Abovely developing apparatus of the present invention and image processing system etc. have been described according to embodiments of the invention.But previous embodiment of the present invention only is used to purpose of the present invention is described, and can not be interpreted as restriction of the present invention.Can change and improve the present invention and do not break away from its main idea, and need not many speeches, the present invention includes its equivalent.

In the aforementioned embodiment, be described with the panchromatic laser printer of intermediate transfer type a example as image processing system, but the present invention is also applicable to various image processing systems, panchromatic laser printer, monochromatic laser printer, duplicating machine and the facsimile recorder of for example non-intermediate transfer type.

In addition, be not limited to so-called light-sensitive roller as the photoreceptor of image carrier, wherein said light-sensitive roller has photoconductive layer is arranged on structure on the outer surface of cylindrical conductive substrate.For example, photoreceptor can be so-called sensitization band, and described sensitization band is by constituting on the surface that photoconductive layer is arranged on the strip-shaped conductive substrate.

The structure of＜＜＜image formation system etc.〉〉〉

Next the embodiment of image formation system is described with reference to the accompanying drawings, as an example of the embodiment of the invention.

Figure 28 shows the explanatory of the external structure of image formation system.Image formation system 700 comprises computing machine 702, display device 704, printer 706, input equipment 708 and fetch equipment 710.In this embodiment, computing machine 702 is accommodated in the housing of minitype vertical type (mini-towertypy), but this is not restriction.For example, CRT (cathode-ray tube (CRT)), plasma scope or liquid crystal display generally are used as display device 704, but this is not restriction.Printer described above is used as printer 706.In this embodiment, keyboard 708A and mouse 708B are used as input equipment 708, but this is not restriction.In this embodiment, driving equipment of floppy disk 710A and CD-ROM driving arrangement 710B are used as fetch equipment 710, but fetch equipment is not limited to these, also can use other equipment of MO (magneto-optic) disc driving equipment for example or DVD (digital versatile disc).

Figure 29 shows the block scheme of the structure of the image formation system shown in Figure 28.Also be provided with such as internal storage 802 the RAM of the enclosure interior of holding computing machine 702 and the external storage such as harddisk driving unit 804.

It should be noted, described an example in the above description, wherein come construct image to form system, but this is not restriction by printer 706 being connected to computing machine 702, display device 704, input equipment 708 and fetch equipment 710.For example, image formation system can be made of computing machine 702 and printer 706, and image formation system needn't be provided with one of display device 704, input equipment 708 and fetch equipment 710.

In addition, for example, printer 706 can have some function or the mechanism of computing machine 702, display device 704, input equipment 708 and fetch equipment 710.As example, printer 706 can be configured to have the image processing section that is used to carry out Flame Image Process, display part and the recording medium attaching/detaching part that is used to carry out various types of demonstrations, has stored the record image data medium that is obtained by digital camera etc. and can be inserted in the recording medium attaching/detaching part or from its taking-up.

Make as a whole system, so the image formation system of realizing is better than legacy system.

The right of priority of the Japanese patent application No.2004-249870 that the application requires to submit in the Japanese patent application No.2004-249869 that submitted on August 30th, 2004, on August 30th, 2004, the Japanese patent application No.2004-249871 that on August 30th, 2004 submitted and the Japanese patent application No.2004-344548 that submitted on November 29th, 2004, it is contained in this by reference.

Claims

1. the main body that can be mounted to image processing system also can comprise from the developing apparatus of its dismounting:

The developer carrying roller is used for bearing developer;

First driving wheel, it is arranged on the end of described developer carrying roller and is used to drive described developer carrying roller;

Second driving wheel is mounted at described developing apparatus under the state of main body of described image processing system, and described second driving wheel receives driving force and described driving force is transferred to described first driving wheel from the main body of described image processing system; And

Setting element, it is made of metal and is used to locate described first driving wheel and described second driving wheel.

2. developing apparatus as claimed in claim 1,

Wherein said developing apparatus has the 3rd driving wheel, and when described second driving wheel transferred to described driving force described first driving wheel, described the 3rd driving wheel played intermediary;

Wherein, be mounted at described developing apparatus under the state of main body of described image processing system, described second driving wheel receives driving force and described driving force is transferred to described first driving wheel via described the 3rd driving wheel from the main body of described image processing system; And

Wherein use described setting element to locate described the 3rd driving wheel.

3. developing apparatus as claimed in claim 2,

Wherein said first driving wheel, described second driving wheel, reaching described the 3rd driving wheel is respectively first driven wheel, second driven wheel, and the 3rd driven wheel;

Wherein said setting element has

First support section is used for rotatably supporting described developer carrying roller,

Second support section is used for rotatably supporting described second driven wheel, and

The 3rd support section is used for rotatably supporting described the 3rd driven wheel;

Wherein by described second support section described second driven wheel that supports and described the 3rd driven wheel engagement of supporting by described the 3rd support section; And

Wherein said the 3rd driven wheel and the engagement of described first driven wheel, described first driven wheel is arranged on the described developer carrying roller that is supported by described first support section.

4. developing apparatus as claimed in claim 2,

Wherein said developing apparatus has

The developer feeding roller is used for described developer feeding to described developer carrying roller, and

The 4 wheel driven driving wheel, it is arranged on the end of described developer feeding roller and is used to drive described developer feeding roller;

Wherein be mounted under the state of main body of described image processing system at described developing apparatus, described second driving wheel receives driving force and described driving force is transferred to described 4 wheel driven driving wheel from the main body of described image processing system; And

Wherein use described setting element to locate described 4 wheel driven driving wheel.

5. developing apparatus as claimed in claim 4,

Wherein said first driving wheel, described second driving wheel, described the 3rd driving wheel and described 4 wheel driven driving wheel are respectively first driven wheels, second driven wheel, the 3rd driven wheel and 4 wheel driven moving gear;

Wherein said setting element has

Second support section is used for rotatably supporting described second driven wheel,

The 3rd support section is used for rotatably supporting described the 3rd driven wheel, and

The 4th support section is used for rotatably supporting described developer feeding roller;

Wherein by described second support section described second driven wheel that supports and described the 3rd driven wheel engagement of supporting by described the 3rd support section;

Wherein said the 3rd driven wheel and the engagement of described first driven wheel, described first driven wheel is arranged on the described developer carrying roller that is supported by described first support section; And

Wherein said first driven wheel and the engagement of described 4 wheel driven moving gear, described 4 wheel driven moving gear is arranged on the described developer feeding roller that is supported by described the 4th support section.

6. developing apparatus as claimed in claim 1,

Wherein said setting element has register pin, is used for locating described developing apparatus with respect to the main body of described image processing system.

7. the main body that can be mounted to image processing system also can comprise from the developing apparatus of its dismounting:

The developer carrying roller is used for bearing developer;

Setting element, it is made of metal and is used to locate described first driving wheel and described second driving wheel;

Wherein, be mounted at described developing apparatus under the state of main body of described image processing system, described second driving wheel receives driving force and described driving force is transferred to described first driving wheel via described the 3rd driving wheel from the main body of described image processing system;

Wherein use described setting element to locate described the 3rd driving wheel;

Wherein said developing apparatus has

The developer feeding roller is used for described developer feeding to described developer carrying roller, and the 4 wheel driven driving wheel, and it is arranged on the end of described developer feeding roller and is used to drive described developer feeding roller;

Wherein, be mounted at described developing apparatus under the state of main body of described image processing system, described second driving wheel receives driving force and described driving force is transferred to described 4 wheel driven driving wheel from the main body of described image processing system;

Wherein use described setting element to locate described 4 wheel driven driving wheel;

Wherein said setting element has

Wherein said the 3rd driven wheel and the engagement of described first driven wheel, described first driven wheel is arranged on the described developer carrying roller that is supported by described first support section;

Wherein said first driven wheel and the engagement of described 4 wheel driven moving gear, described 4 wheel driven moving gear is arranged on the described developer feeding roller that is supported by described the 4th support section; And

8. image processing system comprises:

The main body of described image processing system; And

Developing apparatus, described developing apparatus has:

The developer carrying roller is used for bearing developer;

Second driving wheel, its main body from described image processing system receives driving force and described driving force is transferred to described first driving wheel; And

9. image processing system as claimed in claim 8,

Wherein said setting element has register pin, is used for locating described developing apparatus with respect to the main body of described image processing system;

The described main body of wherein said image processing system has the pilot hole that described register pin can be fitted into them, and another driving wheel that described driving force is passed to described second driving wheel;

Wherein, locate described developing apparatus with respect to the described main body of described image processing system by described register pin is assembled in the described pilot hole; And

Wherein said second driving wheel receives driving force and described driving force is transferred to described first driving wheel from described another driving wheel.

10. image formation system comprises:

Computing machine; With

Can be connected to the image processing system of described computing machine, described image processing system has:

The main body of described image processing system; And

Developing apparatus, described developing apparatus has:

The developer carrying roller is used for bearing developer;

11. the main body that can be mounted to image processing system also can comprise from the developing apparatus of its dismounting:

The developer carrying roller is used for bearing developer;

First setting element is used to locate described first driving wheel;

Second setting element is used to locate described second driving wheel and has the register pin that is used for locating with respect to the main body of described image processing system described developing apparatus.

12. developing apparatus as claimed in claim 11,

Wherein use described first setting element to locate described the 3rd driving wheel.

13. developing apparatus as claimed in claim 12,

Wherein said first setting element has

First support section is used for rotatably supporting described developer carrying roller, and

Wherein said second setting element has

Second support section is used for rotatably supporting described second driven wheel;

14. developing apparatus as claimed in claim 13,

Described first support section of wherein said first setting element rotatably supports described developer carrying roller via the developer roll bearing;

Wherein said second setting element has the support section pilot hole that described the 3rd support section of described first setting element can be fitted into them, and the described developer roll bearing bearing pilot hole that can be fitted into them; And

Wherein pass through

Described the 3rd support section is assembled in the described support section pilot hole, and

Described developer roll bearing is assembled in the described bearing pilot hole,

Locate described first setting element and described second setting element.

15. the main body that can be mounted to image processing system also can comprise from the developing apparatus of its dismounting:

The developer carrying roller is used for bearing developer;

First setting element is used to locate described first driving wheel;

Second setting element is used to locate described second driving wheel and has the register pin that is used for locating with respect to the main body of described image processing system described developing apparatus;

Wherein be mounted under the state of main body of described image processing system at described developing apparatus, described second driving wheel receives driving force and via described the 3rd driving wheel described driving force is transferred to described first driving wheel from the main body of described image processing system;

Wherein use described first setting element to locate described the 3rd driving wheel;

Wherein said first setting element has

Wherein said second setting element has

Wherein pass through

Locate described first setting element and described second setting element.

16. an image processing system comprises:

The main body of described image processing system; And

Developing apparatus, described developing apparatus has:

The developer carrying roller is used for bearing developer;

First setting element is used to locate described first driving wheel;

Second setting element is used to locate described second driving wheel, and has the register pin that is used for locating with respect to the main body of described image processing system described developing apparatus.

17. image processing system as claimed in claim 16,

The described main body of wherein said image processing system has the device side pilot hole that described register pin can be fitted into them, and another driving wheel that transfers a driving force to described second driving wheel;

Wherein, locate described developing apparatus with respect to the described main body of described image processing system by described register pin being assembled in the described device side pilot hole; And

18. an image formation system comprises:

Computing machine; With

The main body of described image processing system; And

Developing apparatus, described developing apparatus has:

The developer carrying roller is used for bearing developer;

First setting element is used to locate described first driving wheel;

19. a developing apparatus comprises:

The developer carrying roller is used for bearing developer;

First installation elements, described developer carrying roller is mounted thereon;

The developer feeding roller is used for described developer feeding to described developer carrying roller;

Second installation elements, described developer feeding roller is mounted thereon; And

Clutch shaft bearing is used for relatively locating described first installation elements and described second installation elements, and is used to take in the axle of described developer feeding roller.

20. developing apparatus as claimed in claim 19,

Wherein said first installation elements and described second installation elements have first pilot hole and second pilot hole that described clutch shaft bearing can be fitted into them respectively;

Wherein said developer feeding roller is rotatably supported by described second installation elements via the described clutch shaft bearing that is assembled in described second pilot hole; And

Wherein also be assembled in described first pilot hole, relatively locate described first installation elements and described second installation elements by the described clutch shaft bearing that will be assembled in described second pilot hole.

21. developing apparatus as claimed in claim 20,

Wherein said developing apparatus has second bearing, is used to take in the axle of described developer carrying roller;

Wherein said first installation elements has the 3rd pilot hole that described second bearing can be fitted into them; And

Wherein said developer carrying roller is rotatably supported by described first installation elements via described second bearing that is assembled in described the 3rd pilot hole.

22. developing apparatus as claimed in claim 21,

Wherein said developing apparatus has, as described clutch shaft bearing

One distolateral clutch shaft bearing, its be positioned in a longitudinal direction one of described developing apparatus distolateral on, and

Another distolateral clutch shaft bearing, its be positioned in a longitudinal direction another of described developing apparatus distolateral on;

Wherein said second installation elements has, as described second pilot hole

Distolateral second pilot hole that described one distolateral clutch shaft bearing can be fitted into them, and

Another distolateral second pilot hole that described another distolateral clutch shaft bearing can be fitted into them;

Wherein said developer feeding roller is rotatably supported by described second installation elements via being assembled to described one distolateral clutch shaft bearing in described one distolateral second pilot hole and being assembled to described another distolateral clutch shaft bearing in described another distolateral second pilot hole;

Wherein said developing apparatus has, as described second bearing

One distolateral second bearing, its be positioned in a longitudinal direction one of described developing apparatus distolateral on, and

Another distolateral second bearing, its be positioned in a longitudinal direction another of described developing apparatus distolateral on;

Wherein said first installation elements has, as described the 3rd pilot hole

Distolateral the 3rd pilot hole that described one distolateral second bearing can be fitted into them, and

Another distolateral the 3rd pilot hole that described another distolateral second bearing can be fitted into them;

Wherein said developer carrying roller is rotatably supported by described first installation elements via being assembled to described one distolateral second bearing in described one distolateral the 3rd pilot hole and being assembled to described another distolateral second bearing in described another distolateral the 3rd pilot hole;

Wherein said first installation elements only has described first pilot hole that described one distolateral clutch shaft bearing can be fitted into them in a longitudinal direction one of described developing apparatus is distolateral; And

Wherein also be assembled in described first pilot hole, relatively locate described first installation elements and described second installation elements by the described one distolateral clutch shaft bearing that will be assembled in described one distolateral second pilot hole.

23. developing apparatus as claimed in claim 22,

Wherein in a longitudinal direction one of described developing apparatus is distolateral, on one in described first installation elements and described second installation elements pin is set, and described pin the 4th pilot hole that can be fitted into them is arranged in described first installation elements and described second installation elements another; And

Wherein said pin is assembled in described the 4th pilot hole.

24. developing apparatus as claimed in claim 22, wherein

On in a longitudinal direction another of described developing apparatus was distolateral, described developing apparatus had another distolateral setting element, is used for relatively locating described another distolateral clutch shaft bearing and described another distolateral second bearing.

25. a developing apparatus comprises:

The developer carrying roller is used for bearing developer;

Clutch shaft bearing is used for relatively locating described first installation elements and described second installation elements, and is used to take in the axle of described developer feeding roller;

Wherein said developer feeding roller is rotatably supported by described second installation elements via the described clutch shaft bearing that is assembled in described second pilot hole;

Wherein also be assembled in described first pilot hole, relatively locate described first installation elements and described second installation elements by the described clutch shaft bearing that will be assembled in described second pilot hole;

Wherein said first installation elements has the 3rd pilot hole that described second bearing can be fitted into them;

Wherein said developer carrying roller is rotatably supported by described first installation elements via described second bearing that is assembled in described the 3rd pilot hole;

Wherein said developing apparatus has, as described clutch shaft bearing

Wherein said second installation elements has, as described second pilot hole

Wherein said developing apparatus has, as described second bearing

Wherein said first installation elements has, as described the 3rd pilot hole

Described developer carrying roller is rotatably supported by described first installation elements via being assembled to described one distolateral second bearing in described one distolateral the 3rd pilot hole and being assembled to described another distolateral second bearing in described another distolateral the 3rd pilot hole;

Wherein said first installation elements only in a longitudinal direction one of described developing apparatus is distolateral, has described first pilot hole that described one distolateral clutch shaft bearing can be fitted into them;

Wherein also be assembled in described first pilot hole, relatively locate described first installation elements and described second installation elements by the described one distolateral clutch shaft bearing that will be assembled in described one distolateral second pilot hole;

Wherein in a longitudinal direction one of described developing apparatus is distolateral, on among both one of described first installation elements and described second installation elements, pin is set, and described pin the 4th pilot hole that can be fitted into them is set among both another of described first installation elements and described second installation elements;

Wherein said pin is assembled in described the 4th pilot hole; And

Wherein in a longitudinal direction another of described developing apparatus was distolateral, described developing apparatus had another distolateral setting element, is used for relatively locating described another distolateral clutch shaft bearing and described another distolateral second bearing.

26. an image processing system comprises:

Developing apparatus, described developing apparatus has:

The developer carrying roller is used for bearing developer;

27. an image formation system comprises:

Computing machine; With

Developing apparatus, described developing apparatus has:

The developer carrying roller is used for bearing developer;

28. a developing apparatus, it can be mounted to the movably attaching/detaching part in the main body that is arranged on image processing system, and can dismantle from it, comprising:

Second gear, when described developing apparatus is in the state that is mounted to described attaching/detaching part and when described developing apparatus moves to the precalculated position along with moving of described attaching/detaching part, described second gear and be arranged on first gearing mesh in the main body of described image processing system;

Second gear shaft, it is supported on the main body of described developing apparatus by supported part, and supports described second gear; And

Lid, it covers the part of described second gear, and supports being positioned at respect to the part on described second gear side opposite with described supported part side of described second gear shaft.

29. developing apparatus as claimed in claim 28, wherein

Described lid has axle support section, being positioned at of described second gear shaft of described shaft supporting part sub-support with respect to the described part on described second gear side opposite with described supported part side, and limit described second gear from described supported part moving on the direction of the described part on the described opposition side.

30. developing apparatus as claimed in claim 29,

Wherein said supported part be arranged on of described second gear shaft distolateral on; And

Another of described second gear shaft of described shaft supporting part sub-support of wherein said lid is distolateral.

31. developing apparatus as claimed in claim 29,

Wherein said developing apparatus has

With the 3rd gear of described second gearing mesh, and

The 3rd gear shaft, it is supported on the main body of described developing apparatus by the second supported part, and supports described the 3rd gear.

32. developing apparatus as claimed in claim 31,

Wherein said lid supports being positioned at respect to the part on described the 3rd gear side opposite with the described second supported part side of described the 3rd gear shaft.

33. developing apparatus as claimed in claim 32,

Wherein said lid has second axle support section, being positioned at of described the 3rd gear shaft of the described second shaft supporting part sub-support with respect to the described part on described the 3rd gear side opposite with the described second supported part side, and limit described the 3rd gear from the described second supported part moving on the direction of the described part on the described opposition side.

34. developing apparatus as claimed in claim 33,

Wherein said axle support section has first hole that described second gear shaft can be fitted into them;

Wherein said second axle support section has second hole that described the 3rd gear shaft can be fitted into them;

Wherein by described second gear shaft being assembled in described first hole described second gear shaft of described shaft supporting part sub-support; And

Wherein by described the 3rd gear shaft being assembled in described second hole described the 3rd gear shaft of the described second shaft supporting part sub-support.

35. developing apparatus as claimed in claim 34,

Wherein said second gear shaft and described the 3rd gear shaft are the lid setting elements that is used to locate described lid.

36. developing apparatus as claimed in claim 32,

Wherein said developing apparatus has

Developer carrier is used for bearing developer; And

The 4th gear, its be arranged in a longitudinal direction one of described developer carrier distolateral on, and with described the 3rd gearing mesh.

37. developing apparatus as claimed in claim 28,

Wherein when described developing apparatus moved to described precalculated position, described developing apparatus was developed in the sub-image that carries on the image carrier, and described image carrier is arranged in the main body of described image processing system.

38. a developing apparatus, it can be mounted to the movably attaching/detaching part in the main body that is arranged on image processing system and can dismantle from it, comprising:

Lid, it covers the part of described second gear, and supports being positioned at respect to the part on described second gear side opposite with described supported part side of described second gear shaft;

Wherein said lid has axle support section, being positioned at of described second gear shaft of described shaft supporting part sub-support with respect to the described part on described second gear side opposite with described supported part side, and limit described second gear from described supported part moving on the direction of the described part on the described opposition side;

Wherein said supported part be arranged on of described second gear shaft distolateral on;

Another of described second gear shaft of described shaft supporting part sub-support of wherein said lid is distolateral;

Wherein said developing apparatus has

With the 3rd gear of described second gearing mesh, and

The 3rd gear shaft, it is supported on the main body of described developing apparatus by the second supported part, and supports described the 3rd gear;

Wherein said lid supports being positioned at respect to the part on described the 3rd gear side opposite with the described second supported part side of described the 3rd gear shaft;

Wherein said lid has second axle support section, being positioned at of described the 3rd gear shaft of the described second shaft supporting part sub-support with respect to the described part on described the 3rd gear side opposite with the described second supported part side, and limit described the 3rd gear from the described second supported part moving on the direction of the described part on the described opposition side;

Wherein by described second gear shaft being assembled in described first hole described second gear shaft of described shaft supporting part sub-support;

Wherein by described the 3rd gear shaft being assembled in described second hole described the 3rd gear shaft of the described second shaft supporting part sub-support;

Wherein said second gear shaft and described the 3rd gear shaft are the lid setting elements that is used to locate described lid;

Wherein said developing apparatus has

Developer carrier is used for bearing developer; And

The 4th gear, its be arranged in a longitudinal direction one of described developer carrier distolateral on, and with described the 3rd gearing mesh; And

39. an image processing system comprises:

Image carrier is used to carry sub-image; And

Developing apparatus, it can be mounted to the movably attaching/detaching part in the main body that is arranged on image processing system and can dismantle from it, be mounted at described developing apparatus under the state of described attaching/detaching part, described developing apparatus is used to be developed in the sub-image that carries on the described image carrier, and described developing apparatus has:

Lid, tool cover the part of described second gear, and support being positioned at respect to the part on described second gear side opposite with described supported part side of described second gear shaft.

40. an image formation system comprises:

Computing machine; With

Can be connected to the image processing system of described computing machine, described image processing system comprises:

Image carrier is used to carry sub-image; And