CN1854933A - Processing box and imaging device - Google Patents
Processing box and imaging device Download PDFInfo
- Publication number
- CN1854933A CN1854933A CN 200610078944 CN200610078944A CN1854933A CN 1854933 A CN1854933 A CN 1854933A CN 200610078944 CN200610078944 CN 200610078944 CN 200610078944 A CN200610078944 A CN 200610078944A CN 1854933 A CN1854933 A CN 1854933A
- Authority
- CN
- China
- Prior art keywords
- handle box
- separating member
- master component
- developing cell
- equipment master
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Electrophotography Configuration And Component (AREA)
Abstract
A process cartridge transportable when mounted in a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller for developing an electrostatic latent image on the drum when in contact with the drum, a drum unit supporting the drum, a developing unit supporting the roller and connected with the drum unit for rotation between a contact position in contact with the drum and a separated position, a force receiving portion for receiving, from the main assembly, a force for moving the developing unit from the contact to the separated position, with the cartridge mounted in the main assembly, a separation member for maintaining the developing unit at a position where the developing roller and the drum are separated from each other, and a detection portion to detect the mounting of the separation member when the cartridge mounted in the main assembly.
Description
Technical field
The present invention relates to a kind of handle box and the electrophotographic image forming apparatus of installing process cartridge removably wherein.
Background technology
Here, electrophotographic image forming apparatus refers to and adopts the electric photographic imaging method to go up the equipment that forms image at recording medium (for example, recording paper, OHP sheet material etc.).As the example of electrophotographic image forming apparatus, can comprise electricity photography duplicating machine, electrographic printer (LED printer, laser beam printer), word processor, facsimile recorder etc.
Handle box refers to a kind of like this casket module, wherein be provided with electric camera photosensitive member and developer roll at least integratedly, and it can be removably mounted in the master component of electrophotographic image forming apparatus.Developer roll is the processing element that is used for handling the electric camera photosensitive member.
In the electrophotographic image forming apparatus field, general adopt a kind of like this process cartridge system, according to this system, electro-photographic light-sensitive drum and developer roll are arranged in the casket module in the master component that can be removably mounted on imaging device integratedly.Developer roll is to be used for making the roller that is formed on the latent electrostatic image developing on the electro-photographic light-sensitive drum.In addition, process cartridge system makes the user can safeguard imaging device, and need not rely on the maintenance personal.Here it is why handle box extensively be used in reason in the electrophotographic image forming apparatus field.
Also have in the electrophotographic image forming apparatus field, known a kind of contact developing method, this method is a kind of like this developing method, and it uses developer to make above-mentioned latent electrostatic image developing by electro-photographic light-sensitive drum and the developer roll being arranged to be in contact with one another and its longitudinal direction is parallel.
Will be when being used for electrophotographic color image forming apparatus, on the photosensitive drums that handle box has one to one, form blue developer image (image that forms by developer), magenta developer image, yellow developer image and black reagent image according to the handle box (below will abbreviate handle box as) of above-mentioned contact developing method.These developers are image layered to be transferred on the recording medium, forms single coloured image thus on recording medium.But there is following problem in this method: if photosensitive drums and developer roll even still remain in contact with one another during the stage except actual stage that forms image wherein then will reduce owing to wearing and tearing their serviceable life.
In addition, if the two remains in contact with one another after handle box transports out from factory, then the contact pressure between the two will cause permanent damages to the two.Between the delivery period of handle box, impact or similar former thereby mutual friction that photosensitive drums and developer roll may during transportation drop and cause owing to the vibration that occurs between the delivery period of handle box, owing to handle box.
As one of them the solution that once was used for addressing the above problem, in Japanese laid-open patent application No.2001-337511, disclosed a kind of structural arrangement, according to this layout, when handle box was in the master component of imaging device, photosensitive drums in handle box and developer roll were except keeping being separated from each other the actual stage that forms image therein.In addition, Japanese laid-open patent application 2002-6722 has disclosed a kind of like this structural arrangement, and it keeps separately photosensitive drums and developer roll during the transport process box.
In recent years, expected and under handle box is installed in situation in the imaging device, to have transported imaging device.The method of this transportation imaging device can reduce from factory handle box (or a plurality of handle box) and imaging device are transported to user's cost, because this transportation resources is in the separately transportation resources of packing of master component that is significantly less than aspect the space that the master component of this handle box (a plurality of handle box) and imaging device occupies for transportation wherein this handle box (a plurality of handle box) and imaging device.
Demonstrate excellent effect in every kind of structural arrangement disclosed in the above-mentioned document.But, in the situation of these structural arrangement, never consider to transport imaging device in that a handle box (a plurality of processing) is installed under the situation in the imaging device master component.
Summary of the invention
Therefore, fundamental purpose of the present invention is to provide a kind of handle box, it is transported in can be in keeping being installed in the master component of electrophotographic image forming apparatus safely, and the electrophotographic image forming apparatus that this handle box wherein can removably be installed is provided.
Another object of the present invention is to provide a kind of permission to detect the handle box of separating member still mounted thereto before the beginning imaging operation, and a kind of electrophotographic image forming apparatus is provided, and wherein this handle box can be installed removably.Here, separating member refers to and is installed in the member that is used on the handle box that Electrifier frame, photoreceptor is separated with developer roll and keeps separating.
Another purpose of the present invention is to provide a kind of handle box that can not be used for imaging operation when separating member still keeps mounted thereto, and a kind of electrophotographic image forming apparatus that this handle box wherein can removably be installed also is provided.
A further object of the present invention is to provide a kind of handle box, it can be removably mounted in the master component of electrophotographic image forming apparatus to form image on recording medium, and can carry when keeping being installed in the equipment master component, this handle box comprises:
One electro-photographic light-sensitive drum;
One developer roll is used for by being arranged to contact with the parallel longitudinal of electro-photographic light-sensitive drum and with electro-photographic light-sensitive drum and utilizing developer to make to be formed on latent electrostatic image developing on the electro-photographic light-sensitive drum;
One drum unit, it is supporting electro-photographic light-sensitive drum;
One developing cell, it is supporting developer roll and is being rotatably connected on the drum unit, thereby allow developer roll to move to contact position and separation point position, in contact position developer roll with the direction of the parallel longitudinal of electro-photographic light-sensitive drum on gamut in keep contacting with electro-photographic light-sensitive drum, developer roll and electro-photographic light-sensitive drum keep being separated from each other in the separation point position;
One power is caught part, and it catches power that the slave unit master component applies so that developing cell moves to the separation point position from contact position when handle box is in the equipment master component;
Separating member, they are removably mounted on drum unit and the developing cell, so that remaining on developing cell wherein, developing cell makes in the separation point position that developer roll and photosensitive drums keep separating, even and handle box is installed in the equipment master component handle box being installed to also can not hinder when separating member maintenance simultaneously is installed on the handle box in the equipment master component; And
One test section, it makes the equipment master component to detect to keep being installed in the separating member on the handle box in the equipment master component.
Another object of the present invention is a kind of electrophotographic image forming apparatus, it allows handle box is removably mounted in its master component, and can transport under handle box is installed in situation in the master component, and form image on recording medium, this equipment comprises:
(a) detection part;
(b) power applies parts, installs in movable mode;
(c) handle box, it comprises: an electro-photographic light-sensitive drum; One developer roll is used for by being arranged to contact with the parallel longitudinal of electro-photographic light-sensitive drum and with electro-photographic light-sensitive drum and utilizing developer to make to be formed on latent electrostatic image developing on the electro-photographic light-sensitive drum; One drum unit, it is supporting electro-photographic light-sensitive drum; One developing cell, it is supporting developer roll and is being rotatably connected on the drum unit, thereby allow developer roll to move to contact position and separation point position, in this contact position developer roll with the direction of the parallel longitudinal of electro-photographic light-sensitive drum in its gamut, keep in touch with electro-photographic light-sensitive drum, in the separation point position, make developer roll and electro-photographic light-sensitive drum keep being separated from each other; One power is caught part, and it catches the power that the slave unit master component applies when handle box is in the equipment master component, so that developing cell moves to the separation point position from contact position; Separating member, they are removably mounted on drum unit and the developing cell so that developing cell remains on developing cell wherein makes in the separation point position that developer roll and photosensitive drums keep separating, even and when handle box being installed in the equipment master component that separating member keeps being installed on the handle box simultaneously, this separating member can not hinder yet handle box is installed in the equipment master component; And a test section, it makes the equipment master component to detect to keep being installed in the separating member on the handle box in the equipment master component;
(d) installation component is used for removably installing process cartridge; And
(e) transfer unit is used for conveying recording medium.
The following explanation of reading the preferred embodiment of the invention in conjunction with the drawings will be well understood to these and other purposes, features and advantages of the present invention more.
Description of drawings
Fig. 1 demonstrates its general structure for the cut-open view of imaging device in first embodiment of the invention (ready wait for).
Fig. 2 is the cut-open view of the handle box (the actual image that forms) in first embodiment of the invention.
Fig. 3 is the cut-open view of handle box in first embodiment of the invention (ready wait for).
Fig. 4 is the decomposition diagram that is equipped with the handle box of separating member in first embodiment of the invention.
Fig. 5 is the cut-open view of the imaging device in first embodiment of the invention, demonstrates its general structure.
Fig. 6 is the skeleton view of one of them major part of the imaging device in first embodiment of the invention.
Fig. 7 is the skeleton view of one of them major part of the imaging device in first embodiment of the invention.
Fig. 8 is the cut-open view of the imaging device in first embodiment of the invention, demonstrates its general structure.
Fig. 9 is the skeleton view of the imaging device in first embodiment of the invention.
Figure 10 is for being equipped with the skeleton view of handle box of separating member in first embodiment of the invention, demonstrate separating member wherein and be installed in mode on the handle box.
Figure 11 (a) and (b) be respectively the side view of the handle box in the first embodiment of the invention.
Figure 12 is the skeleton view that is equipped with the handle box of separating member in first embodiment of the invention, demonstrates how separating member to be installed on the handle box.
Figure 13 is for being used to detect the operational flowchart whether separating member exists in the first embodiment.
Figure 14 is the block scheme of the imaging device in first embodiment of the invention.
Figure 15 rotates in the equipment master component that handle box is installed to imaging device for the cut-open view of the imaging device (the ready waiting status that is in) in first embodiment of the invention, its cam afterwards.
Figure 16 is the cut-open view of the modification of the imaging device in first embodiment of the invention.
Figure 17 (a) and (b) be respectively the side view of the handle box in the first embodiment of the invention.
Figure 18 demonstrates its general structure for the cut-open view of the imaging device (being in second state) in second embodiment of the invention.
Figure 19 demonstrates its general structure for the cut-open view of the imaging device (being in the third state) in second embodiment of the invention.
Figure 20 is the process flow diagram of the operation that is used to detect separating member whether exists in second embodiment of the invention.
Figure 21 is the cut-open view of the modification of the imaging device in second embodiment of the invention, demonstrates its general structure.
Embodiment
[embodiment 1]
Next with reference to these accompanying drawings the electrophotographic image forming apparatus in first embodiment of the invention is described.Fig. 1 be in first embodiment of the invention as the cut-open view of the color laser printer of the example of electrophotographic color image forming apparatus, demonstrate its general structure.
[general structure of imaging device]
At first, with reference to Fig. 1 the general structure of this color-image forming apparatus is described.This imaging device 100 has: box chamber 100 (100a, 100b, 100c and 100c), wherein these handle boxes can be installed removably; Test rod 72; And sensor 73.Each sensor 73 as detection part detects whether separation member 71 still is on the handle box 2 when being installed to handle box 2 in the equipment master component 100.To the structure of above-mentioned parts be elaborated below.
Here, equipment master component 100A refers to the whole of that part of imaging device 100 that do not comprise handle box 2.
This imaging device master component 100A is provided with scanner part 1a, 1b, 1c and 1d, a recording medium feed cassette (paper feeding cassette) 4, a photographic fixing part 6, a driven roller 31, driven voller 32 and 33, a transfer roll 34, a conveying belt 35, a paper feed roller 41 and a pair of registration roller 44.
Each transfer roll 34 so is provided with, thereby it is facing to corresponding photosensitive drums 21, and conveying belt 31 is clipped between transfer roll 34 and the photosensitive drums 21.When voltage being applied on the transfer roll 34, the developer image that is formed on the photosensitive drums 21 is gone up (recording paper, OHP sheet material etc.) to recording medium P.Photosensitive drums 21 and transfer roll 34 constitute transfer section (retained part) T.
Conveying belt 35 by three rollers, be that driven roller and driven voller 32 and 33 support, and the axis of driven roller 31 is as pivotal axis.Conveying belt 35 under the driving force effect that passes to driven roller 31 with the process of imaging operation synchronously along by the clockwise direction circulatory motion shown in the arrow in the drawings.Photosensitive drums 21 with the predetermined circle speed V (below will be called as processing speed) identical with the speed of conveying belt 35 circulatory motions along rotating by the direction shown in the arrow in the drawings.
Each scanner part 1 projects the beam of laser 10 through the image-forming information modulation.Just be exposed to this Shu Jiguang 10 by the circumferential surface of the photosensitive drums 21 of uniform charging.Therefore, on the circumferential surface of photosensitive drums 21, form the electrostatic latent image that reflects image-forming information.When forming this sub-image, drive developer roll 22, and when driving developer roll 22, its polarity is applied on the developer roll 22 with the current potential voltage identical with developer.Therefore, will be just now be formed on latent electrostatic image developing on the circumferential surface of photosensitive drums 21 by developer.More particularly, developer roll 22 is arranged to and photosensitive drums 21 contacts and parallel with it, and the use developer makes the image development on photosensitive drums 21.
Along with being carried, recording medium P passes four transfer station T, four sequentially that color is different image layered being transferred on the recording medium P of monochromatic developer.Therefore, on recording medium P, realize single coloured image.Then, the recording medium P that coloured image had been transferred on it is just now separated with conveying belt 35, and give photographic fixing part 6.In photographic fixing part 6, make the coloured image photographic fixing on recording medium P.Afterwards, recording medium P is discharged into the delivery tray 56 that is positioned on the equipment master component top by a pair of exit roller 53.
[handle box]
With reference to Fig. 2-4, each handle box 2 (2a, 2b, 2c and 2d) has a developing cell 24 (24a, 24b, 24c and 24d) and a drum unit 25 (25a, 25b, 25c and 25d) respectively.In the time of in the master component 100A that handle box 2 is installed to imaging device 100, drum unit 25 is correctly located with respect to master component 100A, and during handle box 2 correctly being arranged among the equipment master component 100A, make drum unit 25 keep correct location with respect to equipment master component 100A.Developing cell 24 is connected with drum unit 25, thereby it can move pivotally with respect to drum unit 25.That is to say that developing cell 24 can move pivotally around the connecting pin that placement is passed in the coupling part between developing cell 24 and the drum unit 25.In developing cell 24, supported rotationally as the developer roll 22 (22a, 22b, 22c and 22d) of developing member.In drum unit 25, photosensitive drums 21 (21a, 21b, 21c and 21d) and charging roller 23 are supported rotationally.Developing cell 24 maintenances are subjected to the extruding as a pair of extension spring 28 of applicator member, thereby make developer roll 22 keep pressing to photosensitive drums 21.That is to say that these springs 28 so keep the developing cell pressurized, be in contact with one another thereby make on photosensitive drums 21 and developer roll 22 its gamut on it is vertical.By the way, photosensitive drums 21 is made of the lip-deep organic photoconductive substance of whole circumference that an aluminium cylinder and one deck are coated in the aluminium cylinder.
Handle box 2 is provided with handle 92, and they make this handle box 2 of the easier operation of operating personnel.They are installed in respectively on the longitudinal end of handle box 2.On the direction in handle box 2 being installed to equipment master component 100A (box chamber 100a, 100b, 100c and 100d), these handles 92 are positioned on the rear side (upstream side) of handle box 2.By the way, handle box 2 is along being installed among the equipment master component 100A with the direction that vertically intersects (vertical) of handle box 2 or therefrom removing.Here, handle box 2 vertically refers to vertical identical direction with photosensitive drums 21.
With reference to Fig. 2 and 3, developing cell 24 so is installed on the drum unit 25, thereby developing cell 24 can move pivotally with respect to drum unit 25, and allows developing cell 24 to take the developer roll 22 of developing cell 24 wherein to keep on its whole longitudinal extent and contact position of photosensitive drums 21 contacts of drum unit 25 (shown in Fig. 2) and the developer roll 22 maintenances separation point position of separating with photosensitive drums 21 wherein in addition.Therefore, when developing cell 24 was in the separation point position, developer roll 22 and photosensitive drums 21 kept being separated from each other on its whole longitudinal extent.
During handle box 2 was in the imaging device 100, developing cell 24 remained in contact or the separation point position.That is to say, contact position is for to be set to wherein developing cell 24 so that imaging device is prepared to the position (at the state shown in Fig. 2) of picture, even and the separation point position is developing cell 24 to be set to wherein so that photosensitive drums 21 and developer roll 22 keep being separated from each other the position that imaging device keeps waiting for (at the state shown in Fig. 3).Below will be at exercise question for the operation and the structural arrangement that are used for that handle box 2 is arranged on contact or separation point position and make it to keep being arranged on wherein being described in the part of " developer roll separating member ".
By the way, equipment master component 100A and handle box 2 can so constitute, thereby when developing cell 24 was in the separation point position, charging roller 23 also kept separating with photosensitive drums 21.
[handle box is installed in the master component of imaging device and handle box is located with respect to master component]
Next describe with reference to Fig. 5-7 pair of structural arrangement that is used for the structural arrangement and being used for that handle box 2 is installed to imaging device master component 100A correctly is arranged on handle box 2 equipment master component 100A.
With reference to Fig. 5, conveying belt 35 and transfer roll 34 be arranged on the door 15 in interior hollow space, and be installed in the door 15 on.Operating personnel open door 15 and make opening 100B expose (Fig. 5), by this opening handle box 2 are installed among the equipment master component 100A.Operating personnel are installed to handle box 2 among the equipment master component 100A or therefrom it are removed by catching handle 92 to pass opening 100B.Door 15 can be locked in the off-position, wherein it is covered with opening 100B fully, perhaps is locked in the open position, and opening 100B is exposed fully.
With reference to Fig. 6 and 7, drum unit 25 is provided with pair of bearings 84 and 85, and they are positioned at the longitudinal end place of drum unit 25 respectively.More particularly, bearing 84 and 85 longitudinal ends by axle 21a are supporting the axle 21a of photosensitive drums 21 one to one.Bearing 84 and bearing 85 are installed on vertical end wall of framework 83 of drum unit 25 one to one.The circumferential surface of these bearings 84 (first that will locate) and 85 (second portions that will locate) is correctly located with respect to equipment master component 100A.More particularly, a part of circumferential surface of bearing 84 is will be with respect to the first of equipment master component 100A location, and a part of circumferential surface of bearing 85 be the second portion of locating with respect to equipment master component 100A.
With reference to Fig. 5-7, during handle box 2 being inserted among the equipment master component 100A, door 15 is stayed open.Above-mentioned first and second side plates 11 and 12 are respectively equipped with leader 86 and 87.These leaders 86 and 87 are by guiding to bearing 84 and 85 respectively the localization part 13 and 14 of equipment master component 100A along bottom surface boot process box 2.
When the precalculated position that handle box 2 is inserted among the equipment master component 100A, bearing 84 contacts with 14 with localization part 13 respectively with 85, thus photosensitive drums 21 correctly is arranged in the precalculated position among the equipment master component 100A; Photosensitive drums 21 is correctly located with respect to equipment master component 100A.
In addition, drum unit 25 is provided with pillar (boss) 88 and 89, as third and fourth part that is used for correct positioning drum unit 25.Pillar 88 and 89 is connected to the longitudinal end surface of drum unit 25 one to one.With regard to handle box 2 was installed in direction among the equipment master component 100A, pillar 88 and 89 laid respectively on the front side (downstream) of bearing 84 and 85.With regard to handle box 2 vertically with regard to, pillar 88 and 89 is on the longitudinal end surface of framework 83 of drum unit 25.
Above-mentioned first and second side plates 11 and 12 are respectively equipped with third and fourth localization part 90 and 91.
When handle box 2 is inserted into precalculated position among the equipment master component 100A, bearing 84 and 85 contacts with localization part 13 and 14 respectively, simultaneously, pillar 88 and 89 contacts with third and fourth localization part 90 and 91 respectively, and handle box 2 is correctly located with respect to equipment master component 100A.More particularly, the bearing 84 of the axle 21a of support photosensitive drums 21 and 85 periphery surface are correctly located with respect to equipment master component 100A.In other words, in the present embodiment, at first, photosensitive drums 21 correctly is arranged in the predeterminated position among the equipment master component 100A, and handle box 2 is correctly located with respect to equipment master component 100A then.
With after localization part 90 and 91 contacts, pillar 88 and 89 is assemblied in the groove that third and fourth localization part 90 and 91 forms respectively, and support by top surface 90a and 91a respectively, pillar 88 and 89 and the top surface 90a of the bottom of localization part 90 and 91 and 91a between have a certain amount of gap.Correct localization process box 2 is necessary to be respectively by top surface 90a or 91a supporting strut 88 or 89.About the amount in above-mentioned gap, make gap between pillar 88 and the 3rd localization part 90 greater than the gap between pillar 89 and the 4th localization part 91.In other words, handle box 2 is positioned at more accurately for equipment master component 100A and is used for that side that slave unit master component 100A receives driving force.
In the present embodiment, the 3rd localization part 90 cross sections are letter U shape.The 4th localization part 91 cross sections are roughly U-shaped, just, are U-shapeds, but not strict is (Fig. 6), have the edge that the cross section is the right angle with the bottom of corresponding the 4th localization part 91 in the bottom of letter U.Third and fourth localization part 90 and 91 position make their handle box 2 of opening surface to importing.
In the rotary driving force that handle box 2 receives from equipment master component 100A, produced such moment, it is along the directive effect that handle box 2 is rotated about the axis with the corresponding bearing 84 of the axis of photosensitive drums 21 and 85.But above-mentioned third and fourth localization part 90 and 91 (adjustment member) prevent this moment rotation processing box 2.More particularly, when handle box 2 beginnings were rotated because of above-mentioned moment, pillar 88 contacted with the top surface of the bottom 90a of localization part 90, and pillar 89 contacts with the top surface of the bottom of localization part 91.As a result, prevent drum unit 25 move up (rotation).More particularly, prevent that drum unit 25 from moving up necessary is that pillar 88 or 89 will contact respectively with the top surface of the bottom of above-mentioned localization part 88 or 89 and keep in touch.
When door 15 was closed, the closing movement of door 15 caused the bar (not shown) of bearing 84 and 85 to be depressed.As a result, bearing 84 and 85 is correctly located with respect to equipment master component 100A, and remains in the position that they are moved into.Even therefore handle box 2 receives driving force, bearing 84 and 85 can not change the position.
[operation that developer roll and photosensitive drums are separated]
With reference to figure 1 and 8, make developing cell 24 rotate by the cam 70 that is arranged among the equipment master component 100A.Cam 70 promotes the projection 27 of catching part as acting force, and it is arranged on the basal surface of developing cell 24.The lifting of projection 27 causes developing cell 24 around fulcrum 26 rotations.In other words, be installed in final stage among the equipment master component 100A at handle box 2, projection 27 has been subjected to the reacting force that overcomes the pressure that spring 28 produced that moves pivotally and produce at the contact position that developing cell 24 keeps photosensitive drums 21 and developer roll 22 to contact with each other from developing cell 24 when developing cell 24 keeps separation point position that photosensitive drums 21 and developer roll 22 be separated from each other.When developing cell 24 upwards moved pivotally, developer roll 22 separated with photosensitive drums 21; In other words, developing cell 24 moves to (Fig. 3) in the separation point position, thus handle box 2 is set to standby.
When developing cell 24 moved pivotally along the direction that developer roll 22 is separated from photosensitive drums 21, developing cell 24 overcame the tension force (Fig. 3 and 4) of spring 28 as described later and moves.In addition, in this case, moving upward of drum unit 25 is because contacting and be prevented between the top surface 91a of contact between the top surface 90a of the bottom of pillar 88 and localization part 90 and/or pillar 89 and the bottom of localization part 91.In other words, as adjustment member, localization part 88 and 89 prevents drum unit 25 and moves because of the acting force that above-mentioned protruding 27 slave unit master component 100A receive.
On the other hand, cam 70 promotes projection 27 from its position rotate to it not with projection 27 contacted positions in, developing cell 24 is rotated down about fulcrum 26.As a result, developer roll 22 and photosensitive drums 21 on their gamuts with regard to vertically, contacting at them.In other words, developing cell 24 moves to (Fig. 2) in the contact position; Handle box 2 is waited for imaging.When developing cell 24 when making the contacted directions pivoting action of developer roll 22 and photosensitive drums 21, developing cell 24 is because the tension force of himself weight and spring 28 and move (Fig. 3 and 4).After the contact, the tension force of spring 28 is used to keep developer roll 22 to contact with photosensitive drums 21 between photosensitive drums 21 and developer roll 22.
When handle box 2 was inserted among the equipment master component 100A, projection 27 placed on the cam 70.As a result, developing cell 24 is arranged on (Fig. 3) in the separation point position; Handle box 2 standbies.Handle box 2 is constituted as the downward protrusion of projection 27 (acting force is caught part) when handle box 2 is among the equipment master component 100A.With regard to the vertical direction that handle box 2 is inserted into the direction among the equipment master component 100A, projection 27 roughly is arranged in handle box 2 in the heart.With regard to the direction that handle box 2 is inserted into equipment master component 100, projection 27 is positioned on the front side of handle box 2.
Mechanical power source (not shown) and the control of electromagnetic switch (not shown) that cam 70 is provided with by equipment master component 100A, thus when each cam 70 was driven, it rotated half-turn.In addition, cam 70 is shaped to its lifting projection 27 when its rotatable phase is 180 °, sets when the rotatable phase of cam 70 is 0 °, cam 70 does not contact (cam 70 is in state shown in Figure 8) with projection 27.Therefore, for each half-turn of cam 70, developing cell 24 or be arranged on the contact position position of imaging (wait for), perhaps position of readiness (separation point position).In addition, in equipment master component 100A, the state (rotatable phase) that sensor (light isolating switch) 73 (Fig. 1 and Fig. 9) detects cam 70 is set.
[separating member]
The structural arrangement that is used for separating member 71 is connected to handle box 2 is below described.In the time of outside handle box 2 is in equipment master component 100A, for example when handle box factory is left in handle box 2 shipments, separating member 71 is installed.With reference to figure 4, developing cell 24 is provided with pair of separated member mount pad 24e and 24f, and they are on the longitudinal end surface of developing cell 24 one to one.In addition, one of them longitudinal end surface of drum unit 25 is provided with hole 83a, and another longitudinal end surface is provided with hole 83b.
Be used for the separating member 71a of handle box 2 or of a pair of processing member 71 and be provided with anchorage part 71g, be used for separating member 71a is connected with handle box 2, another that is used for the separating member 71b of handle box 2 or a pair of processing member 71 is provided with anchorage part 71h, is used for separating member 71b is connected with handle box 2.About with separating member 71a, a process that is connected to one of them longitudinal end of handle box 2 in the pair of separated member 71 just, at first, the anchorage part 71g of separating member 71a passes the hole 83a of drum unit 25, passes the hole (Fig. 4) of separating member mount pad 24e then.The part that (being unit 25 among the figure) extends from two unit 24 and 25 of separating member 71a is crooked at hinge portion 71c then, thereby this shank 71i lies on the top surface 25a of drum unit 25.Shank 71i is fixed on separately on the top surface 25a then.Just, the protruding 71e that is provided with of separating member 71a (by being clasped etc.) is contained among the groove 71j (Fig. 2) that top surface 25a is provided with.
About with separating member 71b, just another in the pair of separated member 71 is connected to the process of wherein another longitudinal end of handle box 2, at first, the anchorage part 71h of separating member 71b passes the hole 83b of drum unit 25, passes the hole (Fig. 4) of separating member mount pad 24f then.The part that (being unit 25 among the figure) extends from two unit 24 and 25 of separating member 71b is crooked at hinge portion 71d then, thereby this shank 71i lies on the top surface 25a of drum unit 25.Shank 71i is connected to separately on the top surface 25a then.Just, the protruding 71f that is provided with of separating member 71b (by being clasped etc.) is contained among the groove 71k (Fig. 2) that top surface 25a is provided with.
By adopting said process, separating member 71 (71a and 71b) removably is connected to handle box 2.When separating member 71 passes the hole of separating member mount pad 21e and 21f,, make developing cell 24 thus around fulcrum 26 rotations by the anchorage part 71g of separating member 71a and 71b and inclined surface rising mount pad 21e and the 21f of 71h.As a result, developer roll 22 separates with photosensitive drums 21.In other words, developing cell 24 is arranged in the separation point position.
In the present embodiment, as described above, separating member 71 (71a and 71b) removably is connected to drum unit 25 ( hole 83a and 83b) and developing cell 24 (hole of separating member mount pad 24e and 24f), thereby lie on the top surface 25a of drum unit 25 from the shank 71i of drum unit 25 and developing cell 24 extensions, and their end is contained in the groove of top surface.
As mentioned above, in the present embodiment, handle box 2 is removably mounted among the equipment master component 100A, and separating member 71 keeps being connected to handle box 2, contacts with the inside of equipment master component 100A because the said structure setting prevents shank 71i.
Still in the present embodiment, separating member 71 so is connected to handle box 2, and promptly shank 71i matches with top surface 25a.But shank 71i is matched with top surface 25a.For example, shank 71i can match with one of them outside surface of developing cell 24 or with the surface of two unit 24 and 25.In other words, herein importantly, separating member 71 is connected to two unit 24 and 25, one the parts of extending from two unit 24 and 25 that make each separating member and the surface of drum unit 25 or developing cell 24 cooperates, and shank 71i is retained to drum unit 25 or developing cell 24 separately.By adopting the said structure setting, the separating member 71 that can not keep being connected to handle box 2 disturbs the situation of the installations of handle box 2 in equipment master component 100A.
Below with reference to Figure 12, the process that is used for removing from handle box 2 separating member 71 is described.Each separating member 71 is designed to make it to pull out from handle box 2 easily after hinge portion 71c turns back at shank 71i.Separating member 71 is provided with shank 71i, and it is used to make the operator 25 to pull out separating member 71 from the unit easily.Therefore, when must be from the unit 25 when removing separating member 71, the operator can be only by catching shank 71i to pull out separating member 71.
Carry one in passing, 24 and 25 parts of extending can be formed by flexible material (for example rope) separating member 71 from the unit, thereby when must be from the unit 24 and 25 when removing separating member 71, the operator can remove separating member 71 by this flexure member of pulling (for example rope).By utilizing this design, the situation that separating member 71 disturbs the installation of handle box 2 in equipment master component 100A can not take place; Rope can not disturb installation.But crucial is, separating member 71 matches from the outside of the unit that two unit 24 and 25 parts of extending and this part are placed.As long as satisfy this requirement, the situation that separating member 71 disturbs the installation of handle box 2 just can not take place.
As mentioned above, separating member 71 elasticity that overcomes spring 26 remains on the separation point position with developing cell 24.In addition, separating member 71 removably is connected to handle box 2, even its connected mode makes that separating member 71 when handle box 2 is installed among the equipment master component 100A keeps being connected under the situation of handle box 2, separating member 71 can not disturb the installation of handle box 2 in equipment master component 100A yet.In particular, for the separating member 71 that prevents to be arranged on the handle box 2 disturbs the installation of handle box 2 at equipment master component 100A, each separating member 71 is connected to handle box 2 as follows, that is, make the parts of separating member 71 24 and 25 extensions match with the outside of unit 24 or 25 from the unit.
The separating member 71 that adopts the said structure setting can guarantee to be arranged on the handle box 2 can not disturb the installation of handle box 2 at equipment master component 100A.Therefore, in the present embodiment, handle box 2 can be installed among the equipment master component 100A, and separating member 71 remains and is connected on the handle box 2.Therefore, imaging device 100 can be transported to the user from factory under a handle box 2 or a plurality of handle box 2 are installed in situation among the equipment master component 100A.Therefore the present embodiment can be modified to the conevying efficiency of picture equipment, can reduce the wrappage consumption of imaging device, can the person's of simplifying the operation mandatory imaging device assembling process when this equipment of assembling.
Carry one in passing; insert the protection member between if desired can adjacent two elements in the various elements of handle box 2 and equipment master component 100A, be damaged in the transportation imaging device because these elements may be installed under the situation among the equipment master component 100A at handle box 2.
As mentioned above, in the present embodiment, when handle box 2 when factory loads and transports out, developing cell 24 remains on separation point position (Figure 10 and 11), wherein developing cell 24 keeps developer rolls 22 to separate (Figure 11 (b)) with photosensitive drums 21; Be installed at a handle box 2 or a plurality of handle box 2 under the situation of equipment master component 100A from factory's shipment imaging device 100.Therefore the time between imaging device 100 is when factory transports out and when imaging device 100 arrives users, developer roll 22 and photosensitive drums 21 can not contact each other.Therefore can prevent to be installed under the situation of equipment master component 100A in the transportation imaging device 100 at a handle box 2 or a plurality of handle box 2, photosensitive drums 21 and developer roll 22 can be because the vibrations that take place in transportation, the impact that causes and/or similar former thereby damage of dropping.
After the user had received imaging device 100, the user wanted slave unit master component 100A to remove a handle box 2 (perhaps a plurality of handle box 2).At this moment, separating member 71 remains and is connected to handle box 2.Therefore the user will remove separating member 71 from handle box 2.When removing separating member 71 from handle box 2 when, developing cell 24 rotates to contact position (Figure 11 (a)).The rotation of developing cell 24 is to cause from the flexible tension force as the extension spring 28 (Fig. 3 and 4) of applicator member.
In addition, each handle box 2 in the present embodiment is provided with a memory element 81 (memory element on the cartridge side) (81a, 81b, 81c, 81d).In memory element 81, the cumulative amount of handle box 2 formed copies, remaining developer level etc. are for example used in storage.The information of for example whether also not using given handle box 2 (whether being brand-new), the handle box life-span length of being expected and being stored in the memory element 81 transmits between set memory element 80 of equipment master component 100A (80a, 80b, 80c, 80d) and memory element 81 respectively.
With regard to the direction that intersects with above-mentioned handle box installation direction, memory element 81 is positioned at an end place of handle box 2.With regard to the handle box installation direction, memory element 81 is positioned at the front end place of handle box 2.
[being used to detect the structure of the parts of separating member 71]
Fig. 1 and shown in Figure 9 be the structure of test rod 72 and the structure of sensor 73.Fig. 9 is the skeleton view of seeing from direction shown in Fig. 1 arrow of the framework of equipment master component 100A, Figure 1 shows that the door of equipment master component is removed.
With reference to figure 1 and Fig. 9, equipment master component 100A is provided with test rod (separating member detection part) 72 (72a, 72b, 72c, 72d) and sensor, and (the separating member detection part: 73 (73a, 73b, 73c, 73d) the light isolating switch), they are arranged among the equipment master component 100A.Each test rod 72 (72a-72d) can with set separating member test section 29 (29a-29d) sliding contact of developing cell 24 (24a-23d).Each handle box chamber is provided with test rod 72 and sensor 73.
When handle box 2 is inserted into handle box chamber 100 (100a, 100b, 100c and 100c), and separating member 7 remains and is connected (handle box 2 is in holding state) on the handle box 2, and test rod 72 contacts with separating member test section 29.Test rod 72 slides into it and can not block from separating member sensor 73 and detect in the position of light as a result.By the detecting sensor 73 detection light that whether has been blocked, controller 60 (Figure 14) determines whether separating member 71 also is not removed.Below describe this process in detail.
If separating member 71 has been removed, and cam 70 is less than do not contact with projection 27 (handle box wait imaging), even cam 70 keeps handle box 2 to allow handle box 2 to form the position of image for the position of holding state rotates to cam 70 from this cam 70, test rod 72 can not slide because of test section 29 yet.Just, determine whether from handle box 2, to have removed separating member 71, carry out imaging operation then by controller 60.As mentioned above, test section 29 is members that are used for detecting on the handle box 2 whether separating member 71 still be in equipment master component 100A.Test section 29 and memory element 81 are positioned at the same end of handle box 2.In addition, with regard to the handle box installation direction, test section 29 is positioned at the front end of handle box 2.
As mentioned above, if the developing cell 24 of handle box 2 is in the connection of separation point position and separating member 71 developing cell 24 is rotated to the separation point position, the handle box 2 that is in this state is installed among the equipment master component 100A, and test section 29 makes test rod 72 slide into 72 pairs of sensors 73 of test rod and blocks the position of detecting light from separating member.In other words, this motion of 73 pairs of test rods 72 of sensor detects, and the existence that detects separating member 71 thus whether.As mentioned above, be used to detect detection part that whether separating member 71 exist and have the test rod 72 that can slide by the part of developing cell 24, and sensor 73, wherein the described part of developing cell 24 contacts with test rod 72 when developing cell 24 is in the separation point position, the influence of the position of the examined bar 72 of the state of sensor 73.
In the present embodiment, each in a plurality of handle boxes chamber 100 is provided with its oneself test rod 72 and sensor 73.As long as one of them separating member 71 keeps being connected with handle box 2, test rod 72 just slides, and will begin imaging operation by process detection as described below by equipment master component 100A (controller 6) under at least one situation that separating member 71 keeps with handle box 2 is connected.
(detecting the program whether separating member 71 exists)
Below describe and be used to detect the program whether separating member 71 exists.Just, whether the handle box 2 that is used for checkout equipment master component 100A still has the program of separating member 71.Figure 13 is the process flow diagram that is used to detect the operation whether separating member 71 exist.As shown in figure 13, when the power supply W (Figure 14) that is provided with when imaging equipment 100 connects, when perhaps determining to have finished the installation of handle box 2 (S1), determine whether handle box 2 is brand-new (S2).Below describe this definite.
Carry one in passing, by detecting gate 15 (described door must be opened when the installing process cartridge 2) open or closing movement (open or close except for problems such as handling paperboard) determines whether handle box 2 just has been installed among the equipment master component 100A, perhaps remove among the slave unit master component 100A.
Handle box 2 never was used (handle box is brand-new) and meaned that this handle box 2 also never was used to imaging.Handle box 2 has been used and has meaned that handle box 2 has been used to imaging.
Whether be used for imaging method about detecting handle box 2, can have adopted following method.For example, about the information stores of given handle box 2 in above-mentioned memory element 81.Therefore, determine by exchange message between memory element 80 and 81 whether this handle box 2 was used.Also can adopt fuse.In this case, handle box 2 is provided with such fuse, and it can blow when this handle box 2 is used for imaging first.
Be not used (S2) if determine this handle box 2, (S3), the state of detecting sensor 73 (determine to detect and only be not blocked) (S4) only to have cam 70 to rotate (state of handle box 2 is switched to from standby be ready to imaging).Be not blocked if detect light, controller 60 is put announcement operator such as 1 and must be removed separating member 71 (S5) by applying to install.In this case, imaging device 100 does not carry out initialization operation (S5).In other words, imaging device does not begin imaging operation.
As mentioned above, each handle box 2 is provided with memory element 81.When given handle box 2 when being brand-new, its memory element 81 is preserved this handle box 2 and is brand-new information.Also be not used if pick out this handle box 2, by beginning to carry out the separating member testing process as the test rod 72 of detection part and the combination of sensor 73 according to the information in the memory element 81.Also be not used if pick out this handle box 2, do not carry out testing process by test rod 72 and sensor 73.Figure 14 is the block scheme of the imaging device 100 of the present embodiment.
As mentioned above, motor 61 and the 62 pairs of handle boxes 2 that are provided with by equipment master component 100A apply driving force.Apply driving force by 63 pairs of cams 70 of motor.Determine by the state of developing cell 24 whether test rod 70 moves as mentioned above, detect the motion of this test rod 70 by detecting sensor 73.The testing result of detecting sensor 73 is received by controller 63.Be connected if testing result display separation member 71 still remains with handle box 2, controller 63 is put 1 notifying operation person and is had separating member 71 by applying to install.In other words, if sensor 73 detecting units 24 are in the separation point position, controller 63 sends announcement.To put the information content that 1 grade sends be optional by applying to install.To put 1 announcement that sends can be form of sound, flash of light form etc. by applying to install.In addition, can on the monitor of personal computer, show the breath of notifying.
With reference to Figure 15, when separating member 71 remains when being connected with handle box 2, even cam is from rotating to the corresponding position of imaging standby condition with handle box 2 with the corresponding position of the holding state of handle box 2, developing cell 24 does not rotate yet.Therefore, developing cell 24 remains on separation point position (handle box 2 remains standby), arrives sensor 73 thereby allow to detect light.Therefore, detect the light time, determine that separating member 71 remains with handle box 2 to be connected when controller 60 detecting sensors 73 are blocked.In addition, when handle box 2 was in equipment master component 100A, cam 70 kept separate with projection 27, therefore can not occur in and damage cam 70 and protruding 27 situation when handle box 2 is installed in transportation imaging device 100 under the situation among the equipment master component 100A.
On the other hand, be used (S2) if determine handle box 2, perhaps the sensor 73 detection light (S4) that has been blocked just determines that separating member 71 has been removed.Then, imaging device begins initialization procedure (S6), makes handle box 2 standbies to be used for imaging (S7) thus.In other words, beginning imaging operation.
As mentioned above, when controller 60 detects existing of separating member 71, it gives the alarm, impel the operator to remove detected separating member 71 thus, to prevent from still to keep taking place when carrying out imaging operation when handle box 2 is connected the damage of equipment failure and/or equipment at separating member 71.Carry one in passing, just carry out said process when only the handle box 2 in equipment master component 100A is the handle box that is not used.Therefore, can not lose time is used for unnecessarily detecting the process of separating member 71, prevents to have postponed because unnecessarily detect the process of separating member 71 beginning of imaging process thus.
Hereinbefore, described each is provided with the structure setting of test rod 72 in a plurality of handle boxes 2.But application of the present invention is not limited to the said structure setting.For example, the present invention also can be used for structure setting as shown in figure 16, wherein adopt a test rod 172 and sensor 173 detect a plurality of handle boxes 2 several separating members 71 existence whether.
In particular, under the situation that this structure is provided with, test rod 172 is provided with a plurality of protruding 172a-172d, and they mate with a plurality of handle boxes 2 respectively in position.Therefore, any one handle box 2 is installed among the equipment master component 100A, and separating member 71 keeps being connected with handle box 2, the projection 27 (27a, 27b, 27c, 27d) of the processed box 2 of the respective protrusions of test rod 172 (172a, 172b, 172c, 172d) promotes, and causes test rod 172 to slide in the position of 172 pairs of sensor 173 occlusion detection light of this test rod thus.
Adopt this structure setting can only utilize a combination of test rod 172 and sensor 173 detect a plurality of handle boxes 2 all separating members 71 existence whether.Therefore, can reduce the number of elements of separating member detection part, therefore can help to reduce the cost of imaging device 100, and simplified apparatus 100.In addition, slide (to its position) afterwards, for example utilize memory element 80 and 81 to detect which handle box 2 and also never be used sensor 173 occlusion detection light at test rod 172; Such handle box chamber that can clear and definite equipment master component 100A, it accommodates handle box, and this handle box still keeps being connected with separating member (untapped handle box 2).In this embodiment, except reality formed the period of image, developing cell 24 still was in the above-mentioned separation point position.Therefore, prevent the rotation that contacts with each other that photosensitive drums 21 and developer roll 22 are unnecessary.Therefore, the present embodiment can make the rubbing wear amount minimum that photosensitive drums 21 and developer roll 22 cause because contacting with each other rotation.
And in the present embodiment, separating member 71 is used in the transportation of imaging device 100 developer roll 22 being remained in the separation point position.Therefore, even imaging device 100 is installed at handle box 2 under the situation of equipment master component 100A and transports, also can prevent photosensitive drums 21 and developing cell 24 because the vibrations that in the transportation of equipment 100, take place, the contingent impact that causes of dropping etc. and damaging in the transportation of equipment 100.
Carry one in passing, application of the present invention is not limited to the imaging device of above-mentioned this employing travelling belt 35.For example, the present invention can also be used to adopt the imaging device of intermediate transfer member etc.
[embodiment 2]
The imaging device of second embodiment of the invention is described below with reference to accompanying drawing.Imaging device in the present embodiment with first embodiment in components identical, part etc. use with the described same Reference numeral of first embodiment and represent, and no longer be described to avoid the same content of repetition.
In the situation of the imaging device of first embodiment, separating member 71 keep with developing cell 24 residing positions when handle box 2 connects with identical in projection 27 position that developing cell 24 is moved into during by cam 70 promotions; They are separation point position (handle box 2 remain standby).In addition, the position that developing cell 24 is moved into when separating member 71 is removed with because the position that the rotation of cam 70 allows developing cell 24 to rotate into is identical; These positions are identical image spaces (handle box is prepared to picture).In other words, separating member 71 remain with photosensitive drums 21 when handle box 2 connects and developer roll 22 between distance and projection 27 when being in the extreme higher position that it can promote by cam 70 distance between photosensitive drums 21 and the developer roll 22 identical.
The imaging device of the imaging device of the present embodiment and first embodiment is different aspect device structure following.Just, with reference to Figure 17, the imaging device of the present embodiment is constituted as, the angle that makes developing cell 24 rotations because being connected of separating member 71 (71a, 71b, 71c, 71d) and handle box 2, the insertion of separating member 71 between developing cell 24 and drum unit 25 just will be moved to separation point position (transporting position shown in Figure 17 (b)) causes the angle of developing cell 24 rotations in fact greater than because cam 70 upwards pushes away projection 27 developing cell 24 being moved to separation point position (remaining standby at this developing cell 24, shown in Figure 17 (a)).In other words, in the present embodiment, when separating member 71 is connected to handle box 2, and when upwards pushing away projection 27, cam 70 compares the bigger angle of developing cell 24 rotations.
By adopting the said structure setting, photosensitive drums 21 with developer roll 22 because the distance that the distance that separating member 71 was separated from each other with being connected of handle box 2 is separated from each other because of the moving upward of projection 27 that cam 70 causes greater than photosensitive drums 21 and developer roll 22.Carry one in passing, determine because the anglec of rotation of the developing cell 24 that separating member 71 rotates by the size of separating member mount pad 24e and 24f.Therefore, in second embodiment, size to separating member mount pad 24d and 24f is selected, thus the angle that the angle that developing cell 24 rotates because of the separating member 71 in second embodiment is rotated because of the separating member 71 in first embodiment greater than developing cell 24.In the present embodiment, the moving upward of projection 27 that will cause because of cam 70 and position that developing cell 24 is rotated into is referred to as standby separation point position (wherein developing cell 24 remains standby with handle box 2), the position that developing cell 24 is rotated into because of the connection of separating member 71 is referred to as to transport separation point position (wherein developing cell 24 is kept for transportation).
As mentioned above as seen, in the present embodiment, the connection of separating member 71 on handle box 2 causes separating member 71 that developing cell 24 is rotated into transporting position, and as mentioned above developing cell remained there.But the angle that makes developing cell 24 rotation because of the separating member 71 in the present embodiment makes the angle of developing cell 24 rotations greater than separating member 71 in the first embodiment.Therefore, because the connection of separating member 71 makes distance that development drum 21 and developer roll 22 separate greater than because separating member 71 is connected the distance that developer roll 22 and photosensitive drums 21 are separated in the first embodiment.Just, in the present embodiment separating member 71 with make being connected of handle box 2 developing cell 24 be arranged in the transportation separation point position, compare in this transportation separation point position with the standby separation point position, distance between developer roll 22 and the photosensitive drums 21 is bigger, and wherein developing cell 24 rotates into the standby separation point position because of cam 70.
In the present embodiment, shown in Figure 17 (a), be set to about 1.5mm apart from B (distance when developing cell 24 is in the standby separation point position) between the circumferential surface of the circumferential surface of photosensitive drums 21 and developer roll 22, and be set to about 2.9mm apart from B (distance when developing cell 24 is in the transportation separation point position) shown in Figure 17 (b).Carry one in passing, in the first embodiment, be in when making the transportation separation point position that developing cell 24 rotates into because of separating member 71 being in because all be set to about 1.5mm apart from B between cam 70 upwards pushes away projection 27 when making the standby separation point position that developing cell 24 rotates into photosensitive drums 21 and the developer roll 22 between the photosensitive drums 21 and developer roll 22 when developing cell 24 apart from B and when developing cell 24.
And in this embodiment, by developing cell 24 being arranged on photosensitive drums 21 and developer roll 22 can be guaranteed to prevent in the transportation separation point position because the impacts that cause of dropping of the vibrations that take place in the process of transportation equipment 100 under situation about handle box 2 being installed among the equipment master component 100A, the imaging device 100 that takes place in the process of transportation equipment 100 under situation about handle box 2 being installed among the equipment master component 100A etc. damage.Especially, in the present embodiment, with because of separating member 71 photosensitive drums 21 is compared with the distance that developer roll 22 can keep separating in the first embodiment, photosensitive drums 21 and developer roll 22 can be because of separating member 71 keep separately bigger distance each other.Therefore the present embodiment can more effectively prevent above-mentioned damage.
Describe below with reference to Figure 18 and to be used to detect the structure setting whether separating member 71 exists in the present embodiment.
As shown in figure 18, when cam 70 (applicator member) rotated, it contacted with projection 27 (acting force is caught part).When cam 70 continued rotation, it promoted projection 27, causes developing cell 24 to rotate into standby separation point position (wherein developing cell 24 remains standby) thus.But in this case, test rod 72 can not slide because of test section 29.On the other hand, when separating member 71 was connected to handle box 2, developing cell 24 rotated into transportation separation point position (wherein developing cell 24 is kept for transporting imaging device under handle box is installed in situation in the equipment master component).In this case, test rod 72 is because contact and slide with the test section 29 of the framework 83 of developing cell 24.
When developing cell 24 is in the standby separation point position, 72 pairs of sensors of test rod, 73 occlusion detection light, and when developing cell 24 is in transportation separation point position (wherein developing cell 24 is kept for transporting imaging device under handle box is installed in situation in the equipment master component), test rod 72 can not block sensor 73, because test rod 72 can slide.In particular, in the present embodiment, the standby separation point position be different the transportation separation point position is set at two angles in the position in developing cell 24 rotation aspect.Just, when handle box 2 is among the equipment master component 100A, is in the standby separation point position with developing cell 24 and compares, the position of the test section 29 of developing cell was higher when developing cell 24 was in the transportation separation point position.In addition, only when developing cell 24 was in the transportation separation point position, test rod 72 slided into the position that it can not block sensor 73 because of test section 29, thus the slip of controller 60 these test rods 72 of detection, in other words, separating member 71 keeps being connected with handle box 2.
For in a plurality of handle boxes 2 among the equipment master component 100A each is provided with test rod 72.Just, each handle box chamber 100a, 100b, 100c, 100d are provided with its oneself test rod 72.As long as separating member 71 keeps being connected with any one handle box 2, test rod 72 just slides.As mentioned above, in the time of cam 70 rotation, it from it can contact projection 27 the position rotate to it and contact with projection 27 and push down in protruding 27 the scope, developing cell 24 rotates to the separation point position from contact position thus.
The profile of cam 70 and be positioned such that described: be installed in the handle box chamber 100 if its developing cell 24 is in the handle box 2 of contact position, in installing process cartridge 2 cam 70 by with the projection 27 contact push down the projection 27.Therefore in the time of installing process cartridge 2, cam 70 rotates to the separation point position with developing cell 24.On the other hand, if still keep being connected with separating member 71 and therefore its developing cell 24 handle box 2 of being in transportation separation point position (just its developing cell 24 is further rotated from the standby separation point position) be installed in the handle box chamber 100, projection 27 be in it not can with cam 70 contacted positions in.Carry one in passing, the separating member 71 in second embodiment and handle box 2 be constituted as with first embodiment in separating member 71 identical with handle box 2, but the size of separating member mount pad 24e and 24f is different.
(detecting the operation whether separating member 71 exists)
Below describe and detect the operation whether separating member 71 exists.With reference to Figure 20, it is the process flow diagram that is used to detect the operation whether separating member 71 exist, when the power supply W of imaging equipment 100 (Figure 14) connects, when perhaps determining to have finished the installation of handle box 2 (S1), the state (controller determine whether sensor 73 is blocked detect light) that controller 60 (Figure 14) is checked sensor 73 (S4).The detection light if sensor 73 is not blocked, controller 60 is put 1 and is sent newspaper by applying to install, and impels the user to remove separating member 71 (S5).In this case, imaging device 100 can not carry out initialization process (S5).In other words, imaging device can not begin imaging operation.According to this newspaper, the user recognizes that separating member 71 still keeps being connected with handle box 2.Carry one in passing, reporting method does not need to be limited to said method.Can choose any reporting method that adopts described in first embodiment wantonly.In addition, also can be used for the imaging device of the present embodiment, but a few exceptions is arranged as above-mentioned Figure 14 of the block scheme of the imaging device in first embodiment.
On the other hand, the detection light (S4) if sensor 72 has been blocked, controller 60 determines that separating member 71 has been removed.Then, imaging device 100 beginning initialization process (S6) make handle box 2 be in imaging standby (S7) thus.In other words, beginning imaging operation.
As mentioned above, controller 60 sends newspaper, impels the operator to remove detected separating member 71 thus.In other words, be in the transportation separation point position, apply to install and put 1 and just send newspaper, still keeps and the damage of generation equipment failure and/or equipment during the execution imaging operation when handle box 2 is connected at separating member 71 preventing if sensor 73 detects unit 24.
In addition, in the present embodiment, can not need detect handle box 2 and whether be used, do not need rotating cam 70 or whether need not carry out existence that similar operations just can detect separating member 71.In other words, this embodiment is compared with first embodiment, and the operating aspect that whether exists at detection separating member 71 is simpler.
Hereinbefore, described each is provided with the structure setting of test rod 72 in a plurality of handle boxes 2 (handle box chamber).But application of the present invention is not limited to the said structure setting.For example, the present invention also can be used for structure setting as shown in figure 21, wherein adopt a test rod 172 and sensor 173 detect a plurality of handle boxes 2 all separating members 71 existence whether.
In particular, under the situation that this structure is provided with, test rod 172 is provided with a plurality of protruding 172a-172d, and they mate with a plurality of handle boxes 2 respectively in position.Therefore, any one handle box 2 is installed among the equipment master component 100A, and separating member 71 keeps being connected with handle box 2, the projection 27 (27a, 27b, 27c, 27d) that the acting force that respective bump (172a, 172b, 172c, 172d) is used as handle box 2 is caught part promotes, cause thus test rod 172 slide into this test rod 172 can position to sensor 173 occlusion detection light in.
Adopt this structure setting can reduce the number of elements of separating member detection part, therefore can help to reduce the cost of imaging device 100, and simplified apparatus 100.In addition, slide (to its position) afterwards, detect which handle box 2 and never be used sensor 173 occlusion detection light at test rod 172; Such handle box chamber that can clear and definite equipment master component 100A, it accommodates handle box (untapped handle box 2), still keeps being connected with separating member 71 in this handle box.
From the description of the preferred embodiments of the invention, can learn, the present invention can provide a kind of in keeping being installed in the master component of electrophotographic image forming apparatus in still transportable handle box, and the electrophotographic image forming apparatus that this handle box wherein removably has been installed.
In addition, the present invention can provide a kind of like this handle box, and the separating member that it allows to remain attached on it was detected before imaging operation begins, and the electrophotographic image forming apparatus that this handle box wherein removably is installed is provided.
In addition, the present invention can provide a kind of like this handle box, and it is not used in imaging operation when separating member remains attached on it, and the electrophotographic image forming apparatus that this handle box wherein removably is installed is provided.
In addition, the present invention can provide a kind of like this handle box, wherein prevent its photosensitive drums and developer roll because the vibrations that under situation about handle box being installed in the equipment master component, take place in the process of transportation electrophotographic image forming apparatus, the impact that causes of dropping of this imaging device of taking place etc. and damaging in the process of transportation electrophotographic image forming apparatus under situation about handle box being installed in the equipment master component, and the electrophotographic image forming apparatus that this handle box wherein removably is installed is provided.
In addition, the present invention can provide a kind of like this handle box, and wherein the frictional dissipation amount of its photosensitive drums and developer roll is less than the handle box of prior art, and the electrophotographic image forming apparatus that this handle box wherein removably is installed is provided.
Although with reference to the structrual description that discloses herein the present invention, the invention is not restricted to these details, the application is intended to cover improvement purpose or interior this modification or the variation of scope that drops into claims.
Claims (10)
1. handle box, it can be removably mounted on the master component that is used for forming the electrophotographic image forming apparatus of image on recording materials, and it can transport under the state in being installed in the equipment master component, and described handle box comprises:
One electro-photographic light-sensitive drum;
One developer roll is used for vertically and under this electro-photographic light-sensitive drum state of contact utilizing developer to make the latent electrostatic image developing that forms on described electro-photographic light-sensitive drum along described electro-photographic light-sensitive drum;
One drum unit, it supports described electro-photographic light-sensitive drum;
One developing cell, it is supporting described developer roll, described developing cell is connected with described drum unit in order to rotate between contact position and separation point position, contact with described electro-photographic light-sensitive drum along the longitudinal at developer roll described in the described contact position, separate with described electro-photographic light-sensitive drum at developer roll described in the described separation point position;
One power receiving unit, when described handle box is installed in the equipment master component, receive from the equipment master component be used to make described developing cell move to the acting force of described separation point position from described contact position;
One separating member, be used for described developing cell is remained on wherein said developer roll and described electro-photographic light-sensitive drum position separated from one another, described separating member is installed on described drum unit and the described developing cell in the following manner, and this mode makes that this separating member allows when separating member keeps being installed on the handle box described handle box to be installed in the equipment master component; And
One test section, it is set on the described developing cell, is used for being installed under the state of equipment master component by used the installation that detects separating member by the equipment master component at handle box.
2. handle box as claimed in claim 1 also comprises a pressing member, and it applies compressing power towards contact position between described drum unit and described developing cell.
3. handle box as claimed in claim 1, also comprise an opposing part, be used to overcome the motion that acting force that described power receiving unit receives from described equipment master component stops described drum unit, described opposing partly utilizes described equipment master component to resist this motion.
4. handle box as claimed in claim 1, wherein, be installed at described handle box that described power receiving unit stretches out from the bottom surface under the state of equipment master component downwards, described power receiving unit is arranged on the central authorities of described handle box basically for the vertical direction of installation direction that handle box is installed in described equipment master component, and is in the front portion with respect to installation direction.
5. handle box as claimed in claim 1, also comprise a memory element, storage described handle box life-span of indication and the information of indicating the non-working condition of described handle box, wherein said memory element is provided with near an end for the vertical direction of installation direction that described handle box is installed in described equipment master component, and described test section also is provided with near same end at place, the front portion for described installation direction.
6. handle box as claimed in claim 1, wherein, under the state that is removably mounted on described drum unit and described developing cell, described separating member has one and reaches described drum unit and the outer extension of described developing cell, be lockable at described extension described separating member under the condition of described drum unit and/or described developing cell, thereby when allowing described separating member is installed on handle box described handle box be installed on the equipment master component.
7. handle box as claimed in claim 1, wherein, when described separating member was installed on the described handle box, described separating member was arranged on described developing cell with the separation point position and compares described developer roll and described electro-photographic light-sensitive drum each other at a distance of farther position.
8. an electrophotographic image forming apparatus is used for forming image on recording materials, on it handle box can be installed removably, and can transport under described handle box is installed in wherein situation, and described equipment comprises:
(a) detection part;
(b) movable power applies parts;
(c) handle box, it comprises: an electro-photographic light-sensitive drum; One developer roll is used for the latent electrostatic image developing that forms utilizing developer to make on electro-photographic light-sensitive drum under the vertical and electro-photographic light-sensitive drum state of contact of described electro-photographic light-sensitive drum; One drum unit is supporting described electro-photographic light-sensitive drum; One developing cell, supporting developer roll, described developing cell is connected with described drum unit in order to rotate between contact position and separation point position, contact with described electro-photographic light-sensitive drum along the longitudinal at developer roll described in the described contact position, separate with described electro-photographic light-sensitive drum at developer roll described in the described separation point position; One power receiving unit, when handle box is installed in the equipment master component, receive from the equipment master component be used to make described developing cell move to the acting force of described separation point position from described contact position; One separating member, be used for developing cell is remained on wherein said developer roll and described electro-photographic light-sensitive drum position separated from one another, described separating member is installed on described drum unit and the described developing cell as follows, and this mode makes this separating member allow when separating member keeps being installed on the handle box described handle box to be installed in the equipment master component; And a test section, it is set on the described developing cell, is used for being installed under the state of equipment master component by used the installation that detects separating member by described detection part at handle box;
(d) installation component is used for removably installing described handle box; And
(e) transfer unit is used for conveying recording medium.
9. equipment as claimed in claim 8, also comprise control assembly, be used for being installed under the state of described equipment at described handle box, before imaging operation begins, when described power applies component movement, whether exist according to the described separating member of the change-detection of the signal that described detection part detected.
10. equipment as claimed in claim 8 also comprises and informs member, is used for pointing out when described detection part detects existing of described separating member removing described separating member.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP130612/2005 | 2005-04-27 | ||
| JP2005130612 | 2005-04-27 | ||
| JP080696/2006 | 2006-03-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1854933A true CN1854933A (en) | 2006-11-01 |
| CN100474164C CN100474164C (en) | 2009-04-01 |
Family
ID=37195158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100789446A Expired - Fee Related CN100474164C (en) | 2005-04-27 | 2006-04-27 | Processing box and imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100474164C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053522A (en) * | 2009-10-30 | 2011-05-11 | 佳能株式会社 | Electrophotographic image forming apparatus |
| CN102768487A (en) * | 2011-05-03 | 2012-11-07 | 珠海赛纳打印科技股份有限公司 | Developing box, image formation apparatus and image formation equipment |
| CN104880923A (en) * | 2015-06-17 | 2015-09-02 | 珠海市拓佳科技有限公司 | Photosensitive drum and charging roller separation structure |
| WO2017114140A1 (en) * | 2015-12-31 | 2017-07-06 | 珠海赛纳打印科技股份有限公司 | Image forming apparatus toner cartridge, developing cartridge and image forming apparatus |
| CN107239030A (en) * | 2017-07-27 | 2017-10-10 | 中山市泰威影印科技有限公司 | A kind of handle box |
| CN110632837A (en) * | 2018-06-25 | 2019-12-31 | 夏普株式会社 | Process cartridge and image forming apparatus including process cartridge |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893006A (en) * | 1995-07-31 | 1999-04-06 | Canon Kabushiki Kaisha | Process cartridge detectably mountable to image forming apparatus and image forming apparatus using same |
| JP4307144B2 (en) * | 2003-05-02 | 2009-08-05 | キヤノン株式会社 | Image reading device |
-
2006
- 2006-04-27 CN CNB2006100789446A patent/CN100474164C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8472838B2 (en) | 2009-10-30 | 2013-06-25 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus with spacing member for spacing components of the apparatus |
| CN102053522B (en) * | 2009-10-30 | 2013-11-06 | 佳能株式会社 | Electrophotographic image forming apparatus |
| CN102053522A (en) * | 2009-10-30 | 2011-05-11 | 佳能株式会社 | Electrophotographic image forming apparatus |
| CN102768487A (en) * | 2011-05-03 | 2012-11-07 | 珠海赛纳打印科技股份有限公司 | Developing box, image formation apparatus and image formation equipment |
| CN102768487B (en) * | 2011-05-03 | 2014-08-27 | 珠海赛纳打印科技股份有限公司 | Developing box, image formation apparatus and image formation equipment |
| CN104880923B (en) * | 2015-06-17 | 2017-11-17 | 珠海市拓佳科技有限公司 | A kind of photosensitive drums and charging roller isolating construction |
| CN104880923A (en) * | 2015-06-17 | 2015-09-02 | 珠海市拓佳科技有限公司 | Photosensitive drum and charging roller separation structure |
| WO2017114140A1 (en) * | 2015-12-31 | 2017-07-06 | 珠海赛纳打印科技股份有限公司 | Image forming apparatus toner cartridge, developing cartridge and image forming apparatus |
| US10394160B2 (en) | 2015-12-31 | 2019-08-27 | Zhuhai Seine Technology Co., Ltd. | Toner cartridge and developing cartridge for image forming apparatus, and image forming apparatus |
| CN107239030A (en) * | 2017-07-27 | 2017-10-10 | 中山市泰威影印科技有限公司 | A kind of handle box |
| CN107239030B (en) * | 2017-07-27 | 2023-10-24 | 中山市泰威影印科技有限公司 | Processing box |
| CN110632837A (en) * | 2018-06-25 | 2019-12-31 | 夏普株式会社 | Process cartridge and image forming apparatus including process cartridge |
| CN110632837B (en) * | 2018-06-25 | 2022-02-22 | 夏普株式会社 | Process cartridge and image forming apparatus including process cartridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100474164C (en) | 2009-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4717455B2 (en) | Image forming apparatus | |
| US7512361B2 (en) | Process cartridge whose developing roller and drum contact and separate from each other and image forming apparatus using such cartridge | |
| CN1214299C (en) | Processing box, imaging device and separating mechanism enabling separation of developing element and sensitive drum | |
| JP5127567B2 (en) | Process cartridge | |
| JP4134985B2 (en) | Image forming apparatus and cartridge | |
| EP2544054A1 (en) | Cover opening and closing unit and image forming apparatus including the same | |
| US9720372B2 (en) | Image forming apparatus | |
| US8670690B2 (en) | Process cartridge and image forming apparatus having the same | |
| CN1834823A (en) | Process cartridge and image forming apparatus usable therewith | |
| JP2005099691A (en) | Processing cartridge and electrophotographic image forming apparatus | |
| JP2020170201A (en) | Developing device, process cartridge, and image forming apparatus | |
| CN1854933A (en) | Processing box and imaging device | |
| US9377752B2 (en) | Image forming apparatus with image bearing member protection | |
| US8543034B2 (en) | Electrophotographic color image forming apparatus and cartridge | |
| US20110127710A1 (en) | Feed assembly and image forming apparatus incorporating feed assembly | |
| JP4835671B2 (en) | Image forming apparatus | |
| JP2006145819A (en) | Color image forming apparatus | |
| JP5625663B2 (en) | Image forming apparatus | |
| JP5171488B2 (en) | Image forming apparatus | |
| JP4280721B2 (en) | Process cartridge | |
| JP2003208077A (en) | Process cartridge and image forming device having the same | |
| JP2008026361A (en) | Image forming apparatus | |
| JP5428680B2 (en) | Image forming apparatus | |
| JP2007286653A (en) | Image forming apparatus | |
| JP3997222B2 (en) | Electrophotographic image forming apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090401 Termination date: 20200427 |