CN100440072C - Process cartridge and electrophotographic image forming apparatus - Google Patents
Process cartridge and electrophotographic image forming apparatus Download PDFInfo
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- CN100440072C CN100440072C CNB2004101035930A CN200410103593A CN100440072C CN 100440072 C CN100440072 C CN 100440072C CN B2004101035930 A CNB2004101035930 A CN B2004101035930A CN 200410103593 A CN200410103593 A CN 200410103593A CN 100440072 C CN100440072 C CN 100440072C
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- master component
- box
- electric contact
- cleaning unit
- unit framework
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Abstract
A process cartridge is detachably mountable to an electrophotographic image forming apparatus main assembly including a main assembly electrical contact, first and second projections and main assembly positioning portions, and a force application member. The cartridge includes first and second frames, a first-frame drum, first and second portions, a second-frame developing roller, a second-frame force receiving portion, a regulating portion, a first-frame memory, a cartridge electrical contact, and a first-frame recess and a second-frame recess. When the cartridge is set in the main assembly, the cartridge electrical contact moves integrally with the main assembly electrical contact by the first frame recess engaging the first main assembly projection and the second frame recess engaging the second main assembly projection, upon the first frame rotating about the first portion and the second portion by the force receiving portion receiving the force from the force application member.
Description
Technical field
The present invention relates to a kind of handle box and a kind of electrophotographic image forming apparatus that uses this handle box.
Background technology
In the field of the electrophotographic image forming apparatus that adopts the electric photographic imaging method, ordinary practice is used process cartridge system, wherein, electric camera photosensitive member and the one or more processing element that act on this electric camera photosensitive member integrally are placed in the box, and this box is removably mounted in the master component of imaging device.
Process cartridge system makes the user oneself safeguard imaging device, and need not to rely on service technician, thereby has greatly improved operating efficiency.Therefore, in the field of electrophotographic image forming apparatus, used handle box widely.
Handle box is provided with the IC storer of the information that wherein stores the master component that will be transferred to imaging device etc., thus when being installed to handle box in the master component, can be between handle box, master component exchange message.In addition, proposed the information of the state of relevant handle box, its service recorder etc. to be passed to the control section (U.S. Patent No. 5,937,239) of master component.
In the storer of handle box, store the information of the lot number of box for example, the performance of imaging device, the performance of processing element etc., make easier master component and/or the handle box of safeguarding imaging device.In addition, can control imaging process according to the information that is stored in the storer, thereby under top condition, form image.
Imaging device and handle box are provided with link, are used for forming between the master component of the storer of handle box and imaging device being electrically connected.As this link, known common connector arranged, adopt the connector of elastic component etc. with contact, because theirs is simple in structure, and on cost, have advantage.According to one of connected system that adopts elastic component, handle box is provided with the coupling part, is used to guarantee form reliably between the master component of handle box and imaging device and keeps being electrically connected.More specifically, handle box is provided with the coupling part, the supporting member of its guiding imaging device master component, and this support member support the coupling part (U.S. publication application 2003-0,123,896) of master component.
The present invention is the further improved result of above-mentioned prior art.
Summary of the invention
Fundamental purpose of the present invention is to provide the combination of a kind of handle box and electrophotographic image forming apparatus, with regard to the reliability that forms between the electric contact of the electric contact of handle box and imaging device master component when going into cartridge in the master component and keep being electrically connected, this combination is better than the combination according to the handle box and the electrophotographic image forming apparatus of prior art.
Another object of the present invention is to provide the combination of a kind of handle box and electrophotographic image forming apparatus, it is not only with regard to the reliability that forms between the electric contact of the electric contact of handle box and imaging device master component when going into cartridge in the master component and keep being electrically connected, and with regard to the convenience that cartridge can be gone into master component, all be better than combination according to the handle box and the electrophotographic image forming apparatus of prior art.
Another purpose of the present invention is to provide the combination of a kind of handle box and electrophotographic image forming apparatus, wherein when first framework that makes handle box rotates around first and second localization parts in the master component, the electric contact of the electric contact of handle box and imaging device master component slides not going up each other, and this first and second localization part is accurately positioned so that handle box is accurately located with respect to master component.
According to an aspect of the present invention, provide the handle box in a kind of master component that is removably mounted on electrophotographic image forming apparatus, this master component comprises: the master component electric contact; First projection; Second projection; Supporting the movable supporting member of master component electric contact, first projection and second projection; Force application component; The first master component localization part; And the second master component localization part, described handle box comprises the cleaning unit framework; The developing cell framework that is connected rotationally with described cleaning unit framework; Be arranged on the electro-photographic light-sensitive drum on the described cleaning unit framework; Clutch shaft bearing, be used for being positioned in when described handle box being set in the master component of equipment the first master component localization part, described clutch shaft bearing is axially outwards outstanding from described cleaning unit framework coaxially basically at an end place and the axis of described cleaning unit framework with respect to described electro-photographic light-sensitive drum; Second bearing, be used for being positioned in when described handle box being set in the master component of equipment the second master component localization part, described second bearing is axially outwards outstanding from described cleaning unit framework coaxially basically at the other end place and the axis of described cleaning unit framework with respect to described electro-photographic light-sensitive drum; The developer roll that contacts with described electro-photographic light-sensitive drum in being located at described cleaning unit framework is used to make the latent electrostatic image developing that forms on described electro-photographic light-sensitive drum; Be arranged on the power receiving unit on the described developing cell framework, be used to receive from the power of described force application component so that described electro-photographic light-sensitive drum and described developer roll separate each other; Regulate part, it is used for regulating the rotation of described cleaning unit framework around described clutch shaft bearing and described second bearing when described power receiving unit receives power from described force application component, and described adjusting portion branch is arranged in the described cleaning unit framework; Be used to store the memory element of the information relevant with described handle box, described memory element is set at the front end place of described cleaning unit framework with respect to the installation direction in the described master component that described handle box is installed in equipment; The box electric contact, it is used for being electrically connected with the master component electric contact when described handle box being set in the master component of equipment, when described box electric contact was electrically connected with the master component electric contact, described box electric contact was used for and will arrives the master component of equipment from the information transmission of described memory element; Be arranged on first recess on the described cleaning unit framework, be used for locating described box electric contact with respect to the master component electric contact when described handle box being installed in the master component of equipment, described first recess can engage with described first projection; Be arranged on second recess on the described cleaning unit framework, be used for locating described box electric contact with respect to the master component electric contact when described handle box being installed in the master component of equipment, described second recess can engage with described second projection; Wherein, when in the master component that described handle box is arranged on equipment, receive from the power of described force application component by described power receiving unit and rotate so that under the situation that described electro-photographic light-sensitive drum and described developer roll are separated from each other at described cleaning unit framework around described clutch shaft bearing and described second bearing, described box electric contact by described first projection and described first recess engage and described second projection mobile integratedly with described second the engaging of recess with the master component electric contact.
When the following description of the relevant preferred embodiment of the present invention of reference accompanying drawing ground research, will more understand these and other purpose of the present invention, feature and advantage.
Description of drawings
Fig. 1 is the cut-open view of the electrophotographic image forming apparatus of first embodiment of the invention, shows the general structure of this equipment.
Fig. 2 is the cut-open view of the box in first embodiment of the invention.
Fig. 3 is the perspective schematic view of the box in first embodiment of the invention.
Fig. 4 for from Fig. 3 the perspective schematic view of the box in the first embodiment of the invention when watching the relative side of a side of box to see.
Fig. 5 is the perspective schematic view of the developing cell of box.
Fig. 6 is the perspective schematic view of developing cell shown in Fig. 5 when seeing with the opposite side of a side of watching developing cell among Fig. 5.
Fig. 7 is the schematic cross sectional views of box, shows its structural arrangement that is used for allowing the developing cell pivot.
Fig. 8 is the skeleton view of imaging device master component, shows the box chamber on it.
Fig. 9 is the imaginary plane figure of the box detent mechanism of imaging device master component, shows at the box that transversely how to make of box accurately to locate with respect to master component.
Figure 10 is illustrated in the electric contact on the box side and the synoptic diagram of the corresponding electric contact on imaging device master component side.
Figure 11 is the cut-open view of the electrical connections of the electrical connections of box and imaging device master component, and Figure 11 (a) and 11 (b) show them before engaging and the state between joint aging time.
Figure 12 is illustrated in the electric contact on the box side and the synoptic diagram of the contact condition between the electric contact on the master component side.
Figure 13 is the synoptic diagram of expression wiping electric contact.
Figure 14 is the side view of box and neighbouring part thereof, and how the supporting member that shows master component moves with the cleaning unit framework when the cleaning unit framework moves.
Embodiment
Hereinafter, with reference to the accompanying drawings handle box in one of the preferred embodiments of the present invention and the electrophotographic image forming apparatus of using this handle box are described.
[embodiment 1]
{ general structure of electrophotographic image forming apparatus }
At first, will the general structure of electrophotographic image forming apparatus be described tout court.Fig. 1 is the cut-open view of the electrophotographic image forming apparatus (following abbreviating as " imaging device ") in first embodiment of the invention.Imaging device in the present embodiment is a kind of wherein a kind of full color laser beam printer of electric photographic method of having used.This printer is the tandem imaging device of transfer printing type.
In Fig. 1, reference symbol Y, M, C and BK represent first to fourth imaging station, wherein form four images, the color composition that the developer of described four kinds of colors is separable into corresponding to the optical imagery of full-color image by yellow, magenta, cyan and black reagent.Imaging station Y, M, C and BK are arranged in the master component 100 of imaging device, vertically align with this order of listing, and make imaging station Y be positioned at the bottom.
Each imaging station Y, M, C and BK comprise: electro-photographic light-sensitive drum 1 (1a, 1b, 1c and 1d) and electric photograph processing parts, the charging unit 2 (2a that charge equably such as the circumferential surface that is used for to photosensitive drums 1,2b, 2c and 2d), the image development that is used to utilize developer to make and forms on the circumferential surface of photosensitive drums 1 is the developing parts 4 (4a of visual picture, 4b, 4c and 4d) and the cleaning member 6 (6a that are used for after the developer image on the circumferential surface that will be positioned at photosensitive drums 1 is to recording medium, removing the developer on the circumferential surface that remains in photosensitive drums 1,6b, 6c and 6d).Processing element is set near the circumferential surface of photosensitive drums 1.In this embodiment, photosensitive drums 1, charging unit 2, developing parts 4 and cleaning member 6 are arranged in the handle box 7 that will be described later integratedly.
The master component of imaging device is provided with scanner unit 3 (3a, 3b, 3c and 3d), each scanner unit is used for forming sub-image by a plurality of somes exposures by the circumferential surface of uniform charging that make photosensitive drums 1 according to imaging data selectively on the circumferential surface of the photosensitive drums 1 of correspondence.Scanner unit 3 is positioned at the rear portion of master component.
Master component also is provided with the carton 17 that wherein stores recording medium S.This carton 17 is arranged in the bottom of master component.The recording medium transfer member also is arranged in the bottom of master component, and this transfer member upwards transmits recording medium S along master component, so that each recording medium S is keeping and moving through photosensitive drums 1 when the circumferential surface of photosensitive drums 1 contacts; In other words, master component is provided with recording medium S is infeeded paper feed roller 18 and a pair of registration roller 19 in the master component one by one.Transfer belt 11 is positioned at the top of carton 17, this transfer belt is around four rollers, and promptly driven roller 13, a pair of loose roll 14a and 14b and idler roller 15 twine, and are hung by these rollers, and motion circularly, thereby this transfer belt keeps contacting with whole photosensitive drums 1.Transfer belt 11 makes recording medium S keep upwards transmitting recording medium S in the adhesion thereon statically by the mode that applies voltage to transfer belt 11 and static adhesive roller 22.
The imaging process of implementing by this imaging device is as follows:
Each photosensitive drums 1 is rotated.When it rotated, its circumferential surface was recharged parts 2 and charges equably.Then, by scanner unit 3 expose selectively photosensitive drums 1 by lip-deep a plurality of points of uniform charging.As a result, on the circumferential surface of photosensitive drums 1, form electrostatic latent image.This electrostatic latent image is developed to the visual picture that is formed by developer by developing parts 4.Owing to have four photosensitive drums 1, on these four photosensitive drums 1, form four different developer images of color one to one.Simultaneously, synchronously recording medium S is sent in four positions each, recording medium S is contacted with the circumferential surface of photosensitive drums 1 by the recording medium transfer member with the formation of four developer images.Then, when the circumferential surface that makes recording medium S and photosensitive drums 1 is transmitted contiguously, (12a, 12b, 12c and 12d) applies transfer bias to transfer roll 12, and this transfer roll keeps being pressed against on the photosensitive drums 1 by the transfer belt 11 (and recording paper S) that is clipped between transfer roll 12 and the photosensitive drums 1.As a result, make at the different developer of the color on the photosensitive drums 1 to be transferred on the recording medium S image layeredly, on recording medium S, form coloured image thus.
Then, the recording medium S that is carrying the coloured image that forms by above-mentioned steps by 20 pairs of photographic fixing parts heats and pressurizes.As a result, make the coloured image photographic fixing that forms by developer.After this, by a pair of exit roller 23 recording medium S is entered in the delivery tray 24.Photographic fixing part 20 is in the top of master component.
After developer image is to recording medium S, remove the residue of the developer on the circumferential surface of the photosensitive drums 1 in each that for example remains in first to fourth imaging station Y, M, C and BK by cleaning member 6, thereby photosensitive drums 1 can be used for imaging repeatedly.
{ handle box }
All in handle box 7 (7a, 7b, 7c and 7d), this handle box is removably mounted in the master component 100 of imaging device for photosensitive drums 1, charging unit 2, developing parts 4 and cleaning member 6 in each of first to fourth imaging station Y, M, C and BK.
Then, will the structure of handle box (following will abbreviate " box " as) 7 be described.
With reference to Fig. 1, box 7 in the present embodiment comprises photosensitive drums 1, charging unit 2 and as the cleaning balde 6 of cleaning member.It also comprises first framework and second framework that is used for developing cell 4 as the framework that is used for cleaning unit 50 (50a, 50b, 50c and 50d).Developing cell 4 is installed on the cleaning unit 50, can pivot with respect to cleaning unit 50.
About each box 7 is packed into the master component 100 of imaging device or the process that they are therefrom taken out, the door 26 that hinge will make be housed is opened widely, with the opening 91 of the box chamber of exposing master component 100 fully, then, the master component 100 of box 7 will being packed into is perhaps from wherein taking out.Obviously, the door 26 that hinge is housed is opened or closed with respect to master component 100.This door 26 that hinge is housed is installed on the front side of master component.
More particularly, with reference to Fig. 8, door 26 can rotate forward around the hinge axis that is arranged on door 26 bottoms, as by among the double dot dash line among Fig. 1 or Fig. 8 solid line indicated.When as described above door 26 being left behind forward rotationally, above-mentioned opening 91 exposes (Fig. 8).On the other hand, when making door during 26 reverse rotations, its close against master component 100 ground (as among Fig. 1 solid line indicated).Door 26 constitutes the part of the protecgulum of master component 100.Above-mentioned transfer belt 11 is installed on the inboard of door 26.
Below will describe in detail with master component 100 that box 7 is packed in and with operation relevant structure and the mechanism of box 7 from wherein taking out.
In following description to the preferred embodiment of the present invention, laterally being meant of box 7 or its member is parallel to the direction with the box-packed direction of going into master component 100 or box being taken out from master component 100, and vertically is meant and the direction of box 7 being packed into master component or the direction that box takes out from master component being intersected.The rear side of box 7 is meant when the side with the box 7 of the box-packed inboard that will become box 7 when going into master component, and the left side of box 7 and right side are meant will become the left side of box 7 and the side on right side with box-packed after going into master component when the front side of master component is seen.In addition, will distinguish up after the end face of box 7 and bottom surface are meant in master component that box 7 is correctly packed into and the surface of box 7 down.
Fig. 2 is the cut-open view of box 7, Fig. 3 and 4 perspective schematic view for the box 7 seen along different directions observation box 7.Fig. 5 and 6 perspective schematic view for the developing cell of the box 7 seen along the developing cell of different directions observation box 7.Fig. 7 is the imaginary side view of box 7, the pivoting action of expression developing cell.
The developer that stores in the developer reservoir about the developing parts of the box 7 in each imaging station Y, M, C and BK, being installed in the developer of being stored among the box 7a among the first imaging station Y is yellow developer; Being installed in the developer of being stored among the box 7b among the second imaging station M is magenta developer; Being installed in the developer of being stored among the box 7c among the 3rd imaging station C is blue developer; And be installed in the developer of being stored among the box 7d among the 4th imaging station BK is black reagent.Although the color difference of the developer that four boxes 7 are stored, their structure is identical.
Each box 7 in the present embodiment is the combination that is interconnected with one another the above-mentioned cleaning unit 50 and the developing cell 4 of (hinged).
Developing cell 4 has developer reservoir 41 and framework 45.Developer in developer reservoir 41 is moved on the developer feeding roller 43 by developer conveying mechanism 42.Then, by developer feeding roller 43 developer is coated on the circumferential surface as the developer roll 40 of developing parts, and developing blade 44 keeps being pressed against on the circumferential surface of developer roll 40, and meanwhile developer is developed agent feed rolls 43 and scraper plate 44 triboelectric chargings.Then, when from master component when developer roll 40 applies the development bias voltage, make the latent electrostatic image developing on the circumferential surface of electro-photographic light-sensitive drum 1; Developer roll 40 is so located, that is, its circumferential surface is placed to contacts with the circumferential surface of light-sensitive roller 1 or in fact contact, so that make latent electrostatic image developing on the circumferential surface of photosensitive drums 1.
With reference to Fig. 3, photosensitive drums 1 is supported by the framework 51 of cleaning unit 50 rotationally at its longitudinal end place, and between the longitudinal end of photosensitive drums 1 and cleaning unit framework 51 pair of bearings 64 (with the first that is accurately positioned) and 65 (with the second portions that are accurately positioned) is set.Handle box 7 is provided with shaft coupling 70, and this shaft coupling is installed on the longitudinal end of photosensitive drums 1, and will be delivered on this shaft coupling from the driving force that is located at the motor (not shown) on the imaging device master component side.By this shaft coupling 70, make photosensitive drums 1 be subjected to rotation and drive along counter clockwise direction (Fig. 2).The rotation of photosensitive drums 1 is delivered in the developer movement mechanism 52 in removing developer chamber 53 by the gear train (not shown), drives developer movement mechanism 52 thus.
Bearing 64 and 65 respectively by handle 82 and 83 and the framework 51 of cleaning unit 50 support.Incidentally, to use handle 82 and 83 in the time of in master component 100 that box 7 is packed into.Cleaning unit framework 51 is provided with the optical gate 72 that is used to protect photosensitive drums 1.Optical gate 72 is opened or closed to motion by box 7 via optical gate moving link 73; When inserting box 7 in the master component 100, optical gate 72 is opened, and when box 7 is extracted out from master component 100, optical gate 72 is closed.
Bearing 64 supports photosensitive drums 1 with regard to the axially speech of photosensitive drums 1 end by photosensitive drums 1, and bearing 65 is by other end support photosensitive drums 1.Bearing 65 extends axially outside the cleaning unit framework 51 along photosensitive drums 1.
{ being used for allowing the structural arrangement of developing cell pivoting action }
Developing cell 4 is installed on the cleaning unit 50, thereby allows whole developing cell 4 to move rotatably with respect to cleaning unit 50.More particularly, with reference to Fig. 5 and 6, the bearing 47 and 48 that is installed in one to one on the longitudinal end of developing cell 4 is respectively equipped with hole 47a and 48a, the dead in line that the axis in this hole and developing cell 4 rotate around it.Coupling shaft 62 and 63 passes cleaning unit framework 51 by these holes 47a and 48a, thereby developing cell 4 is installed on the cleaning unit framework 51 with respect to the mode that cleaning unit framework 51 rotates to allow developing cell 4.
When box 7 is outside master component 100, keep developer roll 40 to contact by moment of torsion with photosensitive drums 1, this moment of torsion is produced along the directions that make developing cell 4 around coupling shaft 62 and 63 rotations by elastomeric element.More particularly, with reference to Fig. 6 and Fig. 7, as being used for making developer roll 40 to keep being pressed against elastomeric element on the photosensitive drums 1, box 7 is provided with compression spring 54 and the tensioning spring 90 that is arranged between cleaning unit 50 and the developing cell 4.The side identical that compression spring 54 is positioned at box 7, and tensioning spring 90 side identical that be positioned at box 7 with bearing 48 with bearing 47.
With reference to Fig. 7, just box 7 is inserted in the master component 100 with regard to the direction Q, developing cell 4 can be positioned between developer roll 40 and the contact pressure receiving unit 47b (48b) around hole 47a and the 48a that its axis rotates; They are positioned at the downstream of developer roll 40.
Utilize developer roll 40 and the hole 47a and the 48a of location as described above, when inserting box 7 in the master component 100, contact pressure receiving unit 47b and 48b slide on the pair of cams 8 that is located on the master component side.Therefore, when box 7 is inserted master component, developer roll 40 and photosensitive drums 1 are separated from each other, and keep separately beginning until imaging operation by this simple structural arrangement.When imaging when beginning operation, make as the cam 8 that is used for applying the parts of upward pressure and rotate, to eliminate the upward pressure that applies by cam 8 to box 7.As a result, developer roll 40 is configured to contact with photosensitive drums 1, and is tried hard to keep to hold and press thereon by what produce by compression spring 54 and tensioning spring 80, makes developer roll 40 prepare to be used to photosensitive drums 1 supply developer.
When developer roll 40 must separate with photosensitive drums 1, direction shown in the arrow D of cam 8 in Fig. 7 is rotated upwards promoting contact pressure receiving unit 47b and 48b, thereby the circumferential surface of the circumferential surface that makes developer roll 40 and photosensitive drums 1 separate the distance of being scheduled to.Contact pressure receiving unit 47b and 48b are the integral part of the framework of developing cell 4.
Applied in the present embodiment developing method is the contact developing method, and wherein, developer roll 40 is configured to contact with photosensitive drums 1, so that the image development that forms on the circumferential surface of photosensitive drums 1.Thus, requiring photosensitive drums 1 is rigid drum, and require developer roll 40 to be resilient roller, for example the plain roller that forms by solid rubber, consider the fact that requires 40 pairs of developers chargings of developer roll and make its surface-coated that the solid rubber roller or the similar roller of resin be arranged.
(being used for the structure that driving force is transmitted)
With reference to Figure 4 and 5, represent the box gear (spiral gear) of developing cell 4 with reference number 71, this box gear is as the part that receives the driving force that is used to rotate developer roll 40 by its master component 100 from imaging device.When box 7 was in master component 100, gear 71 kept and the engagement of the box driven wheel (unshowned spiral gear) on the master component side, to receive the driving force from it.When gear 71 was rotated, developer roll 40, developer conveying mechanism 42 and developer feeding roller 43 were driven by the gear train (not shown).Gear 71 was installed on the end of developer roll 40 with regard to axial (vertically) of photosensitive drums 1.
The shaft coupling 70 of part that is used to drive the driving force of photosensitive drums 1 as reception is installed on an end of the turning axle of photosensitive drums 1.In other words, shaft coupling 70 was installed on the end of photosensitive drums 1 with regard to axial (vertically) of photosensitive drums 1.When box 7 was in master component 100, shaft coupling 70 kept engaging with shaft coupling (not shown) on the master component side, and the driving force of the shaft coupling on the comfortable master component side of reception is to drive photosensitive drums 1 rotatably.
With regard to vertically, gear 71 and shaft coupling 70 are positioned at the place, same end of box 7, that is to say, are provided with electric contact 94a and the 94b on the box side that will be described later at this place, end.
(memory unit)
Memory unit in the present embodiment comprises storer 130 (Figure 11), electric contact 94a and 94b and which is provided with reservoir 130 and the memory plate 94 of electric contact 94a and 94b.This memory plate 94 is installed on the cleaning unit 50.Storer 130 and is stored the relevant information of various and box 7 on one of first type surface of memory plate 94.In other words, relevant with box 7 information is retained in the storer 130.
End with cleaning unit 50 of memory plate 94 is provided with pair of holes 102a and 102b, and this is located with the electric contact 94a that clips box 7 along the longitudinal and the mode of 94b the hole.Two hole 102a and 102b are configured for when in the master component 100 that box 7 is packed into respect to the electric contact 103a on the master component side and 103b electric contact 94a and 94b accurately being positioned at first and second location indentations on the box side.First and second pilot hole 102a and the 102b will be described in the back in more detail.
(box chamber)
Then, describe in the master component 100 of how box 7 being packed into reference to Fig. 8 and Fig. 9 ground.
With reference to Fig. 8, by door 26 being opened widely to expose fully that opening 91 carries out packing into each box 7 in the master component 100 or operation from wherein dismantling.
When door 26 kept closing with respect to master component 100, it kept Locked by the blocking mechanism (not shown).By opening locking mechanism, door 26 can rotate forward to expose opening 91 around hinge axis 27.The guide 80 and 81 that is separately fixed on the sidewall 31 and 32 of master component 100 is positioned on the inboard of opening 91.Thereby master component 100 can hold four boxes 7 that can insert vertically stacked by opening 91.On the inboard of opening 91, also be useful on four box cabins of the box of develop one to one yellow, magenta, cyan and black.
Four box cabins be used on the structure of accommodation box identical.Therefore, describe in the master component of how box 7 being packed into reference to the box in be used for the developing yellow box or the lowermost box cabin of will packing into.
At first, the operator will keep box 7 by the handle 82 and 83 of holding the box 7 at the longitudinal end place that is positioned at box 7 with the left hand and the right hand one to one, and along by the direction shown in the arrow label Q box promptly being passed the opening 91 insertion master components 100 with regard to the horizontal speech opposite side from photosensitive drums 1 from the rear side of box 7.
Each guide 80 and 81 of master component 100 is respectively equipped with four rough targeting parts 86 and 87, and this targeting part is by the left and right longitudinal end guide box 7 of box 7 bottom surfaces.The operator inserts box 7 in the mode that box is placed on rough targeting part 86 and 87, thereby the bottom surface 51f of the cleaning unit framework 51 of the bottom surface 48c of the bearing 48 of box 7 and box 7 contacts with 87 with rough guide 86.Guide 80 and 81 on the master component side is provided with four targeting parts 88 and 89 that are used to guide teat (following will be referred to as the teat targeting part).This teat targeting part 88 and 89 lays respectively on the inside surface of the left side of cleaning unit framework 51 and right side wall (being positioned at the longitudinal end place of photosensitive drums 1).When inserting box 7 in the corresponding box cabin, the teat 51d of parts (being positioned at the longitudinal end place one to one) and the groove that 51e embeds teat targeting part 88 and 89 are regulated in the conduct of cleaning unit framework 51, are controlled at rotatablely moving of box 7 in the master component 100 thus.When box 7 is further inserted, force teat 51d and 51e on teat targeting part 88 and 89, to slide, be directed thus.
In addition, the guide 81 of master component is provided with and is used for pushing along the longitudinal four parts 84 (84d, 84e, 84f and 84g) (being designated hereinafter simply as box pressing component 84) of box 7.Thus, when each box 7 was inserted master components 100, box pressing component 84 contacted with targeting part 85 (Fig. 3) at the right hand longitudinal end place of box 7, and with box 7 by being pressed on the left side wall 31.The above-mentioned right hand longitudinal end of box 7 is meant the right hand wall of cleaning unit framework 51 (cleaning unit 50).
When deeper inserting box 7, make box 7 keep pressing to left side wall 31 by the pressure on the targeting part 85 that is applied to box 7 by box pressing component 84.Here, the left side wall 31 of master component 100 is meant the opposing sidewalls of the master component relative with the right side wall 32 with box pressing component 84.Cleaning unit framework 51 also is provided with and is used for the accurately box locating surface 51c of positioning box 7 of relative master component 100.This box locating surface 51c is positioned at one of them longitudinal end place of cleaning unit framework 51, and is configured to contact with the end face of the guide 80 of master component, with regard to vertically box 7 accurately is positioned in the master component 100.
Then, with reference to Fig. 8, master component 100 is provided with the median wall 93 between the sidewall that vertically is arranged on master component 100.Median wall 93 is provided with four windows, is throwed to box 7 by each window from the laser beam of scanner unit 3.With reference to Fig. 9 and Figure 10, the electric contact supporting member 105 that is used to be supported on electric contact 103a on the master component side and 103b stretches to the inside of box chamber by the connecting hole 96a of median wall 93.When in the deep end that box 7 is inserted the box cabins, 130 continuous electric contact 94a contact with 94b at the electric contact 103a on the master component side and 103b and above-mentioned storer on the box side and that be used for storing the information relevant with box 7.
On the sidewall 31 and 32 of master component 100, be rotatably mounted with and be used for developing cell 4 (developer roll 40) is arranged to and photosensitive drums 1 contact or paired cam 8 that developing cell 4 (developer roll 40) is separated from photosensitive drums 1.Cam 8 can be rotated by the motor (not shown) that is arranged in the master component 100, so that developer roll 40 is separated with photosensitive drums 1, perhaps allows developer roll 40 to be configured to contact with photosensitive drums 1.Be located at the place, end of master component 100 one to one with regard to cam 8 paired with regard to the direction of the parallel axes of photosensitive drums 1.
About each box 7 horizontal location along box 7 in master component 100, each box 7 is inserted in the box cabin by the bearing 64 and 65 that is supporting photosensitive drums 1 always, and is assemblied in gathering sill 34 (34a, 34b set on the sidewall 31 and 32 of master component 100,34c, 34d; 34e, 34f, 34g and 34h) in.More particularly, with reference to Fig. 9, when box 7 is inserted into the end always, the bearing 64 that is positioned at one of them longitudinal end place of box (photosensitive drums 1) and constitutes the first box localization part on the box side is pressed against gathering sill 34 (34a, 34b, 34c, on the box locating surface 37 and 38 34d), this gathering sill has constituted the first box localization part on the master component side, and the bearing 65 that is positioned at another longitudinal end place of box (photosensitive drums 1) and constitutes the second box localization part on the box side is pressed against gathering sill 34 (34e, 34f, 34g and 34h) box locating surface 37 and 38 on, this gathering sill constitutes the second box localization part on master component side.As a result, with regard to vertically, box 7 is accurately located with respect to master component 100.In other words, finish when inserting box 7 in the master components 100, bearing 64 and 65 and the teat 51d and the 51e that are positioned at the longitudinal end place of cleaning unit framework 51 on the master component side, accurately locate by the teat targeting part 88 and 89 of guide 80 and 81 respectively.
As mentioned above, when inserting box 7 in the master component 100, bearing 64 is accurately located by the box locating surface 37 and 38 of the gathering sill 34 of the sidewall 31 of master component 100, and bearing 65 is accurately located by the box locating surface 37 and 38 of the gathering sill 34 of the sidewall 32 of master component 100.
Under the situation with said structure layout, the power that is received by cam pressure receiving unit 47b and 48b when cam 8 is rotated prevents that cleaning unit framework 51 from rotating around bearing 64 and 65.In other words, when cam pressure receiving unit 47b and 48b bear time spent of doing from the power of cam 8, the teat 51d and the 51e that regulate parts as the box location prevent that cleaning unit framework 51 from rotating around bearing 64 and 65.
Between teat 51d and teat targeting part 88, have the gap (spacing) that is approximately 0.1-0.2mm, and existence is approximately tens microns gap (spacing) between teat 51e and teat targeting part 89.
In other words, just axially locate (box 7 along its end) longitudinally in an end of speech in photosensitive drums 1 along it, in fact very close to each other between teat 51e (box end localization part) and teat targeting part 89, an and end of fixed bin 7 under the situation very close to each other actually thus.As mentioned above, box 7 is provided with shaft coupling 70 and gear 71, and they are positioned at the place, end of photosensitive drums 1, so that make box 7 can receive rotary driving force from master component 100.In addition, another end of box 7 with regard to photosensitive drums 1 vertically with regard to be provided with teat 51d (box localization part).Yet the gap between teat 51d (box localization part) and teat targeting part 88 can compensate because following former thereby deviation that occur in the measurement of above-mentioned member thus obviously greater than the gap between teat 51e and teat targeting part 89.
Just, if teat 51d and 51e engage with teat targeting part 88 and 89 only existing under tens microns the situation in gap, the position of box 7 in main combination 100 is by four contact points, promptly box 7 and bearing 64 and 65 and teat 51d and 51e between contact point fix, make cleaning unit framework 51 easily owing to the deviation in the measurement of above-mentioned member deforms.Yet, under situation,, cleaning unit framework 51 can be out of shape if above-mentioned four contact points depart from the position owing to the deviation in the measurement of member with said structure layout.
As mentioned above, when inserting box 7 in the master component 100, enter the hole 102a of conduct first location indentations of box 7 as the teat 105a of first projection, the electric contact 94a of box 7 and 94b are accurately located with respect to electric contact 103a and 103b on the master component side respectively.Similarly, enter hole 102b as the teat 105b of second projection as second location indentations.Pilot hole 102a and 102b belong to cleaning unit 50.
These localization parts, that is, pilot hole and projection are extended along the direction of the installation direction that is roughly parallel to box 7, have guaranteed that teat 105a and 105b enter hole 102a and 102b smoothly when inserting box 7 in this master component 100.In this embodiment, when electric contact 94a and 94b when electric contact 103a on the master component side contacts with 103b, between box 7 and master component 100, form and electrically contact.More particularly, electric contact 94a and electric contact 103a come in contact, and electric contact 94b and electric contact 103b come in contact.
In addition, box 7 is provided with the development bias plasma contact 150 that will be applied to the development bias voltage on the developer roll 40 that is used to receive from master component 100, and master component 100 is provided with the development bias plasma contact (not shown) that is used for transmitting the development bias voltage.Thus, when inserting box 7 in the master components 100, development bias plasma contact 150 contact with development bias plasma contact on the master component side, thereby in developer roll 40 and formation electrical connection between the developing bias supply on the master component side.Electric contact 150 is on the end face of developing cell 4 with regard to be positioned at an end place of developing cell 4 with regard to the direction of the axially parallel of photosensitive drums 1.
With reference to Fig. 7, represent that with reference number 130 box 7 receives the charging bias plasma contact that will be applied to the charging bias voltage on the charging roller by it from master component 100.This electric contact 130 is positioned at another place, end of box 7, and is positioned on the end face of cleaning unit 50.Represent that with reference number 140 box 7 receives the developing blade bias plasma contact that will be applied to the scraper plate bias voltage on the developing blade 44 by it from master component 100.This electric contact 140 is positioned at another place, end of box 7, and is positioned on the end face of developing cell 4.
Equally, when inserting box 7 in the master component 100, the driven wheel 71 of box 7 and the driven wheel (not shown) engagement on the master component side.
Incidentally, box 7 except the yellow box 7 that is used to develop, promptly, the box that is respectively applied for development magenta, cyan and black inserts corresponding box cabin by inserting the identical mode of the mode in box cabin of bottommosts with the yellow box 7 that will be used for developing, this box cabin of bottommost be used to develop box 7 of yellow.
Then, the door that hinge is housed that keeps opening fully 26 is closed with respect to master component 100.When door 26 was closed, it was by locking mechanism (not shown) locking.In addition, when door 26 was closed, the parts by its action and door 26 closing movement interlock carry out following steps: (1) transversely pushed box 7 box 7 accurately is positioned at the step in the master component 100; And (2) make the shaft coupling 70 of box 7 with on the master component side, be used for the step that the shaft coupling 108 of transmission of drive force engages.
Step (1):
With reference to Fig. 9, implement transversely to push box 7 with the step of positioning box 7 accurately by pressing member 30, the action interlock of the action of this pressing member 30 and the mechanism that is used to open and close door 26.Pressing member 30 is supported rotationally by the axle 39 on the sidewall 31 that is installed in master component 100 by crimping.This pressing member 30 links to each other with connecting elements 29, the opening and closing campaign interlock of the motion of connecting elements 29 and door 26.
When door 26 is opened fully, that is, when being removably mounted on box 7 in the master component 100, pressing member 30 is in by the position 30a shown in the line of the single-point among Fig. 9.This position is the position of pressing member 30 withdrawals.When inserting box 7, pressing member 30 does not come in contact with box 7.
When after mounting box 7, closing door 26 time (in Fig. 9 by the direction shown in the arrow label T), connecting elements 29 is along being moved by the direction shown in the arrow label R, pressing member 30 is moved to by the position 30b shown in the solid line among Fig. 9, wherein, pressing member 30 is along being pressed on the inclined-plane 51s of cleaning unit framework 51 by the direction shown in the arrow label S.As a result, make box 7 along laterally accurately being positioned in the master component 100.
The sidewall 32 of master component 100 is provided with the said mechanism identical mechanism set with sidewall 31.Therefore, guaranteed box 7 transversely accurately to be positioned in the master component 100 when closing door 26 the time.
Step (2):
When closing door 26 the time, the closing movement by door 26 makes each shaft coupling 108 on the master component side move along the direction that engages with the shaft coupling 70 of box 7.Like this, when box 7 was arranged on the tram of master component 100, the shaft coupling 108 on the master component side kept engaging with the shaft coupling 70 of box 7, can make from the driving force that is arranged on the motor (not shown) on the master component side to be delivered on the shaft coupling 70.When transmission of drive force, make the photosensitive drums 1 of box 7 be subjected to the rotation driving along the counter clockwise direction among Fig. 1.In addition, the rotation by photosensitive drums 1 drives developer movement mechanism 52 in removing developer chamber 53 via the gear train (not shown).
Equally, when box 7 was on the tram in the master component, the driven wheel 71 of box 7 kept being meshed with driven wheel (not shown) on the master component side, allows the driving force of gear 71 receptions from the gear on the master component side thus.When receiving driving forces by gear 71, the rotation by gear 71 is via developer roll 40, developer conveying mechanism 42 and the developer feeding roller 43 of gear train (not shown) rotation box 7.
Being used for from the process that master component 100 takes out each box 7 is above-mentioned being used for pack into the reverse procedure of process of master component 100 of each box 7.In other words, at first, open door 26, then, make door 26, thereby door 26 is rotated around the hinge axis 27 that is positioned at door 26 bottoms to front opening by opening locking mechanism.When opening door 26 the time, the parts by its action and the motion interlock of door 26 make each box 7 not be subjected to be applied by pressing member 30 effect of pressure thereon.Simultaneously, the shaft coupling 108 on the master component side is thrown off with the shaft coupling 70 of box 7.Then, the operator catches handle 82 and 83 one to one with the left hand and the right hand, and along spurring box 7 in the opposite direction with the side that in the process of mounting box 7, promotes box.This will take out box 7 from master component 100.
{ structural arrangement that is used to keep the electric contact of box to be connected } with the electric contact of master component
Then, the structural arrangement that uses description to make electric contact 94a and the 94b and the electric contact 103a of master component 100 of the storer 130 of box 7 to be connected with 103b.
As mentioned above, box 7 is provided with the memory plate 94 on the rear side that is installed in cleaning unit framework 51.With reference to Figure 10, master component 100 is provided with and is used to support the electric contact 103a of master component and the electric contact support section 104 and the electric contact supporting member 105 that is used to support electric contact support section 104 of 103b.Support section 104 and supporting member 105 stretch in the box cabin by the connecting hole 96a of the above-mentioned median wall 93 of master component framework.The electric contact of master component 100 is configured to contact with the electric contact 94a and the 94b of memory plate 94, is electrically connected to set up between the control section of storer 130 and master component 100.
When in the box chamber of master component 100 that box 7 is packed into, box 7 will insert from the rear side of box 7, and will insert enough deeply so that bearing 64 and 65 contacts with the box locating surface 37 and 38 of corresponding gathering sill 34.Insert in the process of box 7 at this, the teat 105a of the supporting member 105 of master component 100 and 105b enter the pilot hole 102a and the 102b of box 7.As a result, the electric contact 103a and the 103b of the electric contact 94a of memory plate 94 and 94b and master component 100 come in contact, and set up to be electrically connected between the control section of the storer 130 of box 7 and master component 100.
With regard to box 7 being inserted master component 100 directions, memory plate 94 (storer 130) and pilot hole 102a and 102b are positioned at the front end place of cleaning unit 50, and with regard to cleaning unit 50 vertically with regard to, promptly, with regard to photosensitive drums 1 vertically with regard to, they are located at the end that this place is provided with the gear 71 that will be described later and locate.
When the electric contact 103a of the electric contact 94a of memory plate 94 and 94b and master component 100 and 103b come in contact, can be between the control circuit (not shown) of storer 130 and equipment master component 100 the switching telecommunication breath.In order to ensure the reliability that is electrically connected between the electric contact of the electric contact 94a of box 7 and 94b and master component 100, make the surface gold-plating of electric contact.More particularly, the electric contact 94a of the electric contact 103a of master component 100 and 103b and box 7 and 94b are formed by gold-plated copper coin.
When inserting box 7 in the master component 100, be assembled among the pilot hole 102a as first recess of cleaning unit framework 51 as the teat 105a of first projection of supporting member 105, and be assembled among the pilot hole 102b as second recess of cleaning unit framework 51 as the teat 105b of second projection of supporting member 105.Supporting member 105 with its on that the electric contact support section 104 of the electric contact 103a of master component 100 and 103b is installed is in aggregates.
Incidentally, will teat 105a and 105b be assemblied in securely among pilot hole 102a and the 102b; In other words, when the former was assembled among the latter, what all were necessary was exactly that the electric contact on both sides is correctly located relative to one another.
Electric contact support section 104 long enoughs stretch in the box chamber with the connecting hole 96a of the median wall 93 by the master component framework.In addition, the teat 105a of electric contact supporting member 105 and 105b long enough stretch in the box chamber with the hole 96b and the 96c of the median wall 93 by the master component framework.Supporting member 105 will so be installed, that is, make to allow it vertically and horizontal ground motion, that is to say, this horizontal direction for master component 100 that box 7 is packed in the vertical direction of direction.
More specifically say, the xsect of connecting hole 96a and hole 96b, 96c is respectively greater than the xsect of supporting member 105 with teat 105a and 105b, allow supporting member 105 to move a segment distance along above-mentioned direction, this distance equates with distance between the xsect of the xsect of hole 96a, 96b and 96c and supporting member 105 and teat 105a and 105b respectively.The size of the xsect of hole 96a, 96b and 96c and supporting member 105 are thus set with the size of the xsect of teat 105a and 105b, that is, make and allow distance that supporting member 105 moves along above-mentioned direction greater than during master component 100 that box 7 is packed into and/or afterwards owing in box 7 and master component 100, existing the gap to allow the distance of the position deviation that box 7 takes place between the corresponding box cabin in master component 100.Therefore, even box 7 occurrence positions in master component 100 departs from, also allow supporting member 105 and cleaning unit framework 51 to move together, when box 7 was in the master component 100, supporting member 105 was connected with cleaning unit framework 51.Therefore, prevent that the electric contact 94a of box 7 and the electric contact of 94b and master component from rubbing each other.
In this embodiment, the electric contact 94a of box 7 and 94b are positioned at an end of cleaning unit framework 51, and with regard to vertically between pilot hole 102a and 102b.In addition, with regard to vertically, pilot hole 102a and electric contact 94a are in the same side, and pilot hole 102b and electric contact 94b are in the same side.In other words, pilot hole 102a and 102b are to clip the mode position of electric contact 94a and 94b.Therefore, location teat 105a and 105b are assembled to the electric contact of having guaranteed among pilot hole 102a and the 102b on both sides are set up and are held in each other and contact, and do not take place each other frictionally to move together.
As mentioned above, when inserting box 7 in the master component 100, location teat 105a is assembled among the pilot hole 102a, and similarly, location teat 105b is assembled among the pilot hole 102b.Under situation with such arrangement of mechanism, when cleaning unit framework 51 rotates around bearing 64 and 65 under the effect as the cam 8 of the applicator member received power by its pressure receiving unit 47b and 48b at it, so that when making developer roll 40 from photosensitive drums 1 separation, the electric contact 94a of box 7 and 94b move with the electric contact 103a and the 103b of master component 100.Therefore, even cleaning unit framework 51 is rotated, electric contact 94a and electric contact 103a do not rub each other, and electric contact 94b and electric contact 103b do not rub yet.In other words, improved imaging device aspect the reliability level of the electrical connection of this embodiment between box 7 and master component 100.
In this embodiment, pilot hole 102a and 102b are positioned at a longitudinal end place of cleaning unit framework 51, and flatly align with electric contact 94a and 94b in the mode that clips electric contact 94a and 94b.But pilot hole 102a and 102b can aim at along the direction of the direction of aliging in this embodiment perpendicular to them; For example, they can vertically align in the mode that clips electric contact 94a and 94b.Such layout can provide and the identical effect of those effects by present embodiment provided.
With reference to Figure 11, master component 100 is provided with the motion that is used to regulate the motion that electrically contacts supporting member 105 and regulates part 106.In that direction (Q) is when seeing in the master components 100 along box 7 is inserted, this adjusting part 106 is positioned on the rear side (the scanner unit side of median wall 93) of supporting member 105.Motion adjustment means 106 is installed on the median wall 93.In other words, the master component 100 of imaging device is provided with motion adjustment means 106, and this adjustment means is positioned on the downstream of supporting member 105 with regard to the direction of advancing in the master component 100 with regard to the box 7 of box 7.Like this, when inserting box 7 in the master component 100, when the box 7 that supporting member 105 is being advanced pushed in the master component 100, supporting member 105 contacted with supporting member motion adjustment means 106, prevented that thus supporting member 105 from further moving inward.Therefore, in supporting member 105 was pushed into master component 100, promptly when the downstream with regard to the box installation direction, the back side 105c of supporting member 105 and supporting member motion adjustment means 106 came in contact, and prevented that thus supporting member 105 from further moving downstream.Therefore, guaranteed that the electric contact 94a of memory plate 94 of electric contact 103a and 103b and box 7 and 94b are placed with to contact with each other, and guaranteed between supporting member 105 and box 7, to keep the suitably contact pressure of size simultaneously.Therefore, following situation can not take place, that is, the electric contact 105a of master component 100 can not correctly be placed to 105b and maintenance contacts with 94b with the electric contact 94a of box 7.
In addition, when inserting box 7 in the master component 100, at first, supporting member 105 engages with cleaning unit framework 51; More particularly, shown in Figure 11 (b), the end of location teat 105a and 105b enters among the pilot hole 102a and 102b of cleaning unit framework 51.Then, when further insertion box 7, in fact whole location teat 105a and 105b enter pilot hole 102a and 102b respectively.Then, when deeper inserting box 7, the electric contact 94a of box 7 contacts with 103b with the electric contact 103a of master component 100 with 94b.
The location teat 105a of master component 100 and the top of 105b are sharp, even thereby the location teat 105a of supporting member 105 and 105b vertically and/or perpendicular on the direction longitudinally with respect to the pilot hole 102a and the 102b occurrence positions skew slightly of box 7, when inserting box 7 in the master component 100, location teat 105a and 105b also are directed among pilot hole 102a and the 102b.Under situation with above-mentioned structural arrangement, guaranteed when inserting box 7 in the master component 100, location teat 105a and 105b so to be located, that is, make their axis and the axis alignment of pilot hole 102a and 102b.
Incidentally, even location teat 105a and 105b are arranged on the cleaning unit frame side, and pilot hole 102a and 102b be arranged on the supporting member side, also allows supporting member 105 with 51 motions of cleaning unit framework.Yet if adopted such layout, box 7 will have the outshot that might be damaged when operating case 7.Comparatively speaking, in the present embodiment, cleaning unit framework 51 is provided with pilot hole 102a and 102b, feasible easier operating case 7.
With reference to Figure 12 and 13, memory plate 94 is installed on the back side of cleaning unit framework 51, and is oriented to vertical with box direction of insertion (Q represents by the arrow label).In other words, memory plate 94 is oriented to that to be assembled to pilot hole 102a vertical with the direction among the 102b with locating teat 105a and 105b.Thereby when inserting box 7 in the master component 100, memory plate 94 keeps parallel with electric contact support section 104, and electric contact 94a contacts with 103b with the electric contact 103a of master component 100 with 94b.
As mentioned above, when inserting box 7 in the master component 100, the electric contact 94a and the 94b of the electric contact 103a of master component 100 and 103b and box 7 come in contact, and then, move by box 7 further insertions.As a result, electric contact 103a and 103b and electric contact 94a and 94b wiping each other.Therefore, even be stained with exotic on the electric contact, this exotic also will be wiped, thereby has guaranteed that the electric contact on both sides comes in contact and keeps in touch each other.Here it should be noted, in the present embodiment, by making memory plate 94 (box 7, keep memory plate 94 to be parallel to supporting member 105 when cleaning unit framework 51) moving, can set electric contact 103a and 103b respectively with respect to the distance of the wiping motion of electric contact 94a and 94b towards supporting member 105.
Because the electric contact 94a and the 94b of box 7 are located in this wise, that is, make their surface in contact become vertical with the box direction of insertion, institute is so that maximize aspect their contact areas between the electric contact 103a and 103 of they and master component 100.In addition, the electric contact 94a of box 7 and 94b and electric contact 103a and 103b are come in contact each other, thereby their surface in contact remains parallel to each other, this has guaranteed that they come in contact each other and keep in touch.
Incidentally, above-mentioned term " wiping " refers to the electric contact 94a and 94b and electric contact 103a and 103b mutual friction mutually of box 7.Yet the number of times of their mutual wipings equals to change with another box (7) number of times of box 7.In addition, compare considerably less with the number of times of another box (7) replacing box 7 with the copy quantity of between the whole operating period of imaging device, being exported.Therefore, can ignore the electric contact 103a of master component 100 and 103b because the normal replacing of box 7 and wiped the amount that reams; Electric contact 103a and 103b are cleaned simply.
When in the master component 100 that box 7 is packed into, supporting member 105 obtains the support of cleaning unit framework 51 in the mode of an integral part becoming cleaning unit framework 51.Therefore, even box 7 moves in master component 100, supporting member 105 also moves along with cleaning unit framework 51, prevents the electric contact 103a and electric contact 94a and the 94b mutually mutual friction of 103b with box 7 of master component 100 thus.
Contact with photosensitive drums 1 or when developer roll 40 is separated with photosensitive drums 1 when cam 8 being rotated when being in the master component 100 at box 7 developer roll 40 is arranged to, developing cell 4 upwards promotes cleaning unit framework 51 or is applied to pressure on the cleaning unit framework 51 by compression spring 54 minimizings by compression spring 54 (Fig. 7) respectively.
As mentioned above, between the teat guide 88 and 89 of the teat 51d of cleaning unit framework 51 and 51e and master component 100, form small gap, allow cleaning unit framework 51 to move the distance that size equals these gaps.In addition, when developing cell 4 is moved developer roll 40 is arranged to contact with photosensitive drums 1 or when developer roll 40 is separated with photosensitive drums 1, cleaning unit framework 51 and/or guide 80 and 81 on the master component side can deform sometimes, when if they deform, memory plate 94 and/or electric contact support section 104 are moved.
As compartmentalized box for holding assorted fruits and candies 7 and master component 100 be not configured to as they in the present embodiment, promptly, if electric contact support section 104 is securely fixed on the master component 100, do not allow thus to move, then the electric contact 94a of box 7 and 94b and electric contact 103a and the 103b small distance of sliding mutually with cleaning unit framework 51.Therefore, can will have the electric contact 103a of the imaging device master component 100 of long life very and 103b sizable amount of pruning, this is because come electric contact 94a and the electric contact 103a of 94b and master component 100 and the above-mentioned sliding action that 103b is going up each other of repetition box 7 by the number of times that is equivalent to the imaging device useful life period.
If the electric contact 103a of master component 100 and 103b by scraping, then partly locate to come in contact fault in the scraping of electric contact 103a and 103b; In other words, for following reason, between the control section of storer 130 and master component 100 communication failure may take place.That is to say that usually, the voltage between storer 130 and master component 100 is lower than those voltages that are applied on charging roller and the developer roll.Therefore, in case owing to the electric contact 94a of box 7 and 94b friction the time, the electric contact 103a of master component 100 and the golden watch surface layer of 103b are wiped off, thereby base metal (for example copper) is exposed and oxidized, just make the interruption that is electrically connected between electric contact 103a and 103b and electric contact 94a and 94b.
Yet in the present embodiment, electric contact support section 104 is with moving with cleaning unit framework 51 as described above.Therefore, electric contact 103a and 103b and electric contact 94a and 94b can not take place in the situation that can not correctly be connected aspect the electrical connection.
Incidentally, under the situation according to the electrical contact structure of prior art, reach with the A4 size until the copy cumulative number by equipment output and to be calculated as before about 150,000 parts, the electric contact 103a of master component 100 and the scraping of 103b all do not become problem.Yet, in recent years, for its in serviceable life length be equivalent to existing the increasing of demand of 400,000 parts imaging device.Its in serviceable life length be equivalent in the situation of the imaging device of 400,000 parts or similar umber, must be at the useful life period chien shih electric contact 103a of the whole length of imaging device and 103b basically not by scraping.
About this respect, in the present embodiment, among the pilot hole 102a and 102b that the location teat 105a of supporting member 105 and 105b are assembled to cleaning unit framework 51, and mobile with cleaning unit framework 51.Therefore, even cleaning unit framework 51 is mobile slightly, the electric contact 103a of the electric contact 94a of box 7 and 94b and master component 100 and 103b also not mutual friction mutually, therefore, electric contact 103a and 103b can not wiped off sizable amount.
In other words, this embodiment of the present invention provides following effect.
Even contact with photosensitive drums 1 or make developer roll 40 and photosensitive drums 1 separating process that box 7 is vibrated slightly by being used for developer roll 40 is placed to, the electric contact 103a and the 103b that also prevent master component 100 are worn owing to rubbing, therefore, communication failure can not take place between the control section of storer 130 and master component.In other words, this embodiment can improve imaging device in the handle box of imaging device and the reliability level of the electrical connection between the master component.
When inserting box 7 in the master components 100, electric contact 94a and 94b with electric contact 103a and 103b are directed to box 7 reliably prevent to come in contact with the part except that the contact point of its appointment of electric contact 94a and 94b thus.Therefore, make electric contact 103a and 103b not be subjected to the friction of electric contact 94a and 94b.Therefore, present embodiment can prevent to break down being electrically connected between electric contact 103a and 103b and electric contact 94a and the 94b in the slip on electric contact 103a and the 103b owing to electric contact 94a and 94b.
In addition, with reference to Figure 12 and 13, the process of box 7 insertion master components 100 is made the electric contact 94a and the mutual wiping of 94b of electric contact 103a and the 103b and the box 7 of master component 100.Therefore, even disturb the exotic that is electrically connected to stick on the contact point of electric contact 103a, 103b, 94a and 94b, electric contact 103a and 103b and electric contact 94a and 94b also can remove exotic when they come in contact mutually, thereby guarantee to set up gratifying electrical connection respectively between electric contact 103a and 103b and electric contact 94a and 94b.
In addition, automatically produce the wiping action of the electric contact that exotic is removed from electric contact by the insert action of box 7 being inserted master components 100.Therefore, the user does not need to be specifically designed to the operation of removing foreign matter.
In addition, in the present embodiment, being positioned at conduct rotation on the longitudinal end as described below of box 7, to regulate the teat 51e and the teat guide 89 of part seamlessly assembled with each other, that is, this longitudinal end place upper edge box 7 vertically be provided for driving force is delivered to the shaft coupling 70 of photosensitive drums 1 and is used for driving force is delivered to gear 71 on the developer roll 40.In addition, with regard to box 7 vertically with regard to, the electric contact 94a of box 7 and 94b and teat 51e are installed on the same end.Therefore, when rotating cam 8 rotating developing cell 4, so that developer roll 40 is arranged to contact with photosensitive drums 1 or when separating, unlikely forces electric contact 94a and 94b to move with it.
In addition, with reference to accompanying drawing 4, in the present embodiment, with regard to box 7 vertically with regard to, the electric contact 94a of gear 71 and box 7 and 94b are arranged on the inboard of shaft coupling 70, bearing 65 and teat 51e.Therefore, when rotating cam 8 so that developing cell 4 rotate so that developer roll 40 is arranged to contact with photosensitive drums 1 or when separating with it, more unlikely electric contact 94a and the 94b of forcing moves.
As mentioned above, with regard to the direction of the axis that is parallel to photosensitive drums 1 (framework 51 vertically), be positioned at as photosensitive drums 1 by the shaft coupling 70 of the part of its reception driving force and the inboard of teat 51e (as box position adjustments part), as what see by the gear 71 of the part of its reception driving force and the electric contact 94a and the 94b of box 7 as developer roll 40 from the downstream that box 7 is inserted master components 100 directions.
[other embodiment]
In the above-described embodiments, having the electric contact 103a of master component 100 and the electric contact support section 104 of 103b is supported by supporting member 105.Yet, electrically contact the integral part that support section 104 can be made as this supporting member 105.
Equally, in the above-described embodiments, imaging device also has the handle box that uses on it for contact developable electrophotographic color image forming apparatus.Yet the present invention also can be applicable to electricity photography forming monochrome image equipment, non-contact type imaging device and is installed in developing cell and developer reservoir unit in the master component of electrophotographic image forming apparatus.
Equally, in the above-described embodiments, handle box comprises photosensitive drums and at least one processing element.As the example of processing element, charging unit, developing parts and cleaning member are arranged.Therefore, handle box can be wholely set and be detachably mounted on casket module in the master component of electrophotographic image forming apparatus for wherein making charging unit, developing parts or cleaning member and photosensitive drums.Wherein make by at least one processing element in charging unit, developing parts and the cleaning member and photosensitive drums and be wholely set and be detachably mounted on casket module in the master component of electrophotographic image forming apparatus, perhaps wherein be wholely set and be detachably mounted on casket module in the master component of electrophotographic image forming apparatus by at least one developing parts and photosensitive drums.
In addition, electrophotographic image forming apparatus is a kind of equipment that utilizes the electric photographic imaging method to form image on recording medium.It for example comprises electricity photography duplicating machine, electrographic printer (for example, laser beam printer, LED printer etc.), facsimile recorder, word processor, or the like.
In the above-described embodiments, when in the master component 100 that handle box 7 is installed to electrophotographic image forming apparatus, be assembled among the pilot hole 102b as first recess as the location teat 105a of first projection, be assembled to pilot hole 102b as second recess as the location teat 105b of second projection.Therefore, make the electric contact 94a of box 7 and 94b mobile with the electric contact 103a and the 103b of master component 100.Therefore, even cleaning unit framework 51 is rotated, the electric contact 103a of master component 100 and 103b also not respectively with the electric contact 94a and the 94b mutual friction mutually of box 7.Therefore, aspect the reliability of the electrical connection between handle box and master component, the box 7 in the present embodiment and the combination of master component 100 are better than the combination according to the handle box and the imaging device master component of prior art.
Although invention has been described with reference to disclosed structure here, the present invention is not limited to the details set forth, and the application is intended to cover this class that may fall in improved purpose or the following claim scope and revises or change.
Claims (8)
1. the handle box (7) on the master component (100) that can be removably mounted on electrophotographic image forming apparatus, this master component (100) comprising: the master component electric contact (103a, 103b); First projection (105a); Second projection (105b); Support the movable supporting member (105) of master component electric contact, first projection and second projection; Force application component (8); The first master component localization part (34); And the second master component localization part (34), described handle box comprises:
Cleaning unit framework (51);
The developing cell framework (45) that is connected rotationally with described cleaning unit framework (51);
Be located at the electro-photographic light-sensitive drum (1) in the described cleaning unit framework (51);
Clutch shaft bearing (64), it is positioned in the first master component localization part (34) and locates when described handle box is arranged in the master component of equipment, described clutch shaft bearing (64) is protruding from described cleaning unit framework (51) coaxially basically at an end place and the described axis of described cleaning unit framework (51) with respect to the axis direction of described electro-photographic light-sensitive drum;
Second bearing (65), it is positioned in the second master component localization part (34) and locates when described handle box is arranged in the master component of equipment, described second bearing (65) is protruding from described cleaning unit framework (51) coaxially basically at the other end place and the described axis of described cleaning unit framework (51) with respect to the axis direction of described electro-photographic light-sensitive drum;
The developer roll (40) that contacts with described electro-photographic light-sensitive drum in being arranged on described cleaning unit framework (51) is used to make the latent electrostatic image developing that forms on described electro-photographic light-sensitive drum;
(47b 48b), is used for receiving the power from described force application component (8), so that described electro-photographic light-sensitive drum and described developer roll separate each other to be arranged on power receiving unit on the described developing cell framework (45);
Regulate part (51d, 51e), be used for regulating the rotation of described cleaning unit framework (51) around described clutch shaft bearing (64) and described second bearing (65) when described power receiving unit receives power from described force application component, described adjusting portion branch is arranged in the described cleaning unit framework (51);
Be used to store the memory element (130) of the information relevant with described handle box, described memory element is arranged on the front end of described cleaning unit framework (51) with respect to the installation direction in the described master component that described handle box is installed in equipment;
Be used for the box electric contact (94a that when described handle box being arranged on the master component of equipment, is electrically connected with the master component electric contact, 94b), described box electric contact is used for the master component of the equipment that when described box electric contact is electrically connected with the master component electric contact information is transferred to from described memory element;
Be arranged on first recess (102a) in the described cleaning unit framework (51), be used for when described handle box being arranged on the master component of equipment, locating described box electric contact with respect to the master component electric contact, described first recess can with described first protrusion engagement;
Be arranged on second recess (102b) in the described cleaning unit framework (51), be used for when described handle box being arranged on the master component of equipment, locating described box electric contact with respect to the master component electric contact, described second recess can with described second protrusion engagement;
Wherein, when in the master component that described handle box is arranged on equipment, receive from the power of described force application component by described power receiving unit and rotate so that under the situation that described electro-photographic light-sensitive drum and described developer roll are separated from each other at described cleaning unit framework (51) around described clutch shaft bearing (64) and described second bearing (65), described box electric contact by described first projection and described first recess engage and described second projection mobile integratedly with described second the engaging of recess with the master component electric contact.
2. handle box according to claim 1 also comprises:
Drum driving force receiving unit (70), the described master component that is used for when described handle box being arranged on the master component of equipment slave unit receives the driving force that is used for rotating described electro-photographic light-sensitive drum, and described bulging driving force receiving unit is set near the described other end of described cleaning unit framework;
Developing roller driving force receiving unit (71), the described master component that is used for when described handle box being arranged on the master component of equipment slave unit receives the driving force that is used for rotating described developer roll, described developing roller driving force receiving unit is set near the described other end of described cleaning unit framework
Wherein, when in the master component that described handle box is arranged on equipment, described adjusting part is set near the described end of described cleaning unit framework (51), and near the described other end of described box electric contact with respect to the described cleaning unit framework of vertically being set at of described cleaning unit framework (51) (51).
3. handle box according to claim 1 and 2, it is characterized by, when seeing with respect to the downstream of installation direction, described developing roller driving force receiving unit and described box electric contact are vertical with respect to described cleaning unit framework (51), are arranged on the described inboard of regulating part at a described bulging driving force receiving unit and a described end place that is positioned at described cleaning unit framework (51).
4. handle box according to claim 3, it is characterized by, near the end that vertically is set at described box electric contact of described first recess with respect to described cleaning unit framework (51), and described second recess is with respect near the other end that vertically is set at described box electric contact.
5. according to the described handle box of one of claim 1 to 4, it is characterized by, the other end place on the axis direction of described electro-photographic light-sensitive drum also is provided with described adjusting part.
6. electrophotographic image forming apparatus that is used on recording materials forming image, installing process cartridge (7) removably on it, described equipment comprises:
(a) the master component electric contact (103a, 103b);
(b) first projection (105a);
(c) second projection (105b);
(d) movable supporting member (105) of support described master component electric contact, described first projection and described second projection;
(e) force application component (8);
(f) the first master component localization part (34);
(g) the second master component localization part (34);
(h) cleaning unit framework (51);
The developing cell framework (45) that is connected rotationally with described cleaning unit framework (51);
Be arranged on the electro-photographic light-sensitive drum (1) in the described cleaning unit framework (51);
Clutch shaft bearing (64), be used for being positioned in when described handle box being arranged on the master component of equipment the first master component localization part, described clutch shaft bearing (64) is protruding from described cleaning unit framework (51) coaxially basically at an end place and the described axis of described cleaning unit framework (51) with respect to the axis direction of described electro-photographic light-sensitive drum;
Second bearing (65), be used for being positioned in when described handle box being arranged on the master component of equipment the second master component localization part, described second bearing (65) is protruding from described cleaning unit framework (51) coaxially basically at the other end place and the described axis of described cleaning unit framework (51) with respect to the axis direction of described electro-photographic light-sensitive drum;
The developer roll (40) that contacts with described electro-photographic light-sensitive drum on being arranged on described cleaning unit framework (51) is used to make the latent electrostatic image developing that forms on described electro-photographic light-sensitive drum;
(47b 48b), is used for from described force application component reception so that described electro-photographic light-sensitive drum and described developer roll separate each other to be arranged on power receiving unit on the described developing cell framework (45);
Regulate part (51d, 51e), be used for regulating the rotation of described cleaning unit framework (51) around described clutch shaft bearing (64) and described second bearing (65) when described power receiving unit receives power from described force application component, described adjusting partly is set in the described cleaning unit framework (51);
Be used to store the memory element (130) of the information relevant with described handle box, described memory element is arranged on the front end of described cleaning unit framework (51) with respect to the installation direction on institute edge on the described master component that described handle box is installed in equipment;
Box electric contact (94a, 94b), be used for being electrically connected with the master component electric contact when described handle box being arranged on the master component of equipment, described box electric contact is used for the master component of the equipment that when described box electric contact is electrically connected with the master component electric contact information is transferred to from described memory element;
Be arranged on first recess (102a) in the described cleaning unit framework (51), be used for when described handle box being arranged on the master component of equipment, locating described box electric contact with respect to the master component electric contact, described first recess can with described first protrusion engagement;
Be arranged on second recess (102b) in the described cleaning unit framework (51), be used for when described handle box being arranged on the master component of equipment, locating described box electric contact with respect to the master component electric contact, described second recess can with described second protrusion engagement;
Wherein, when in the master component that described handle box is arranged on equipment, receive from the power of described force application component by described power receiving unit and rotate so that under the situation that described electro-photographic light-sensitive drum and described developer roll are separated from each other at described cleaning unit framework (51) around described clutch shaft bearing (64) and described second bearing (65), described box electric contact by described first projection and described first recess engage and described second projection mobile integratedly with described second the engaging of recess with the master component electric contact.
7. equipment according to claim 6, the adjusting part (106) that also comprises master component, its during with respect to the described master component of described handle box access arrangement direction be set at the downstream of described supporting member, and when the described handle box of the described master component by access arrangement promotes described supporting member, make described supporting member and will contact dividing, and described supporting member can move along horizontal direction with perpendicular to the direction of horizontal direction towards the described adjusting portion of the master component of the rear side adjustment movement of the described master component of equipment.
8. equipment according to claim 7 is characterized by, and the master component electric contact comprises can be along a plurality of conductive members of approach axis withdrawal.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP223778/2004 | 2004-07-30 | ||
| JP2004223778 | 2004-07-30 | ||
| JP330449/2004 | 2004-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1728013A CN1728013A (en) | 2006-02-01 |
| CN100440072C true CN100440072C (en) | 2008-12-03 |
Family
ID=35927338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101035930A Expired - Fee Related CN100440072C (en) | 2004-07-30 | 2004-12-30 | Process cartridge and electrophotographic image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100440072C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4458377B2 (en) * | 2007-06-29 | 2010-04-28 | キヤノン株式会社 | Process cartridge and electrophotographic image forming apparatus |
| JP4458378B2 (en) | 2007-06-29 | 2010-04-28 | キヤノン株式会社 | Process cartridge and electrophotographic image forming apparatus |
| CN101158823B (en) * | 2007-11-21 | 2010-06-23 | 王军 | False proof method of electric appliance consumption materials and electric appliance material having false proof function |
| JP5424749B2 (en) * | 2008-09-01 | 2014-02-26 | キヤノン株式会社 | cartridge |
| JP5517989B2 (en) | 2010-05-14 | 2014-06-11 | キヤノン株式会社 | Process cartridge and image forming apparatus |
| JP5741808B2 (en) * | 2011-01-20 | 2015-07-01 | 株式会社リコー | Developer amount detection device and image forming apparatus |
| JP5523503B2 (en) | 2012-05-24 | 2014-06-18 | キヤノン株式会社 | Process cartridge and image forming apparatus |
| JP6896376B2 (en) * | 2016-04-28 | 2021-06-30 | キヤノン株式会社 | Cartridge and image forming device |
| JP7262983B2 (en) * | 2018-11-30 | 2023-04-24 | キヤノン株式会社 | Process cartridge and image forming apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1387096A (en) * | 2001-03-09 | 2002-12-25 | 佳能株式会社 | Processing cassette and electronic photography imaging apparatus |
| US6512903B2 (en) * | 1999-02-16 | 2003-01-28 | Canon Kabushiki Kaisha | Developer accommodating container, a developing device, a process cartridge, and an image forming apparatus whose developer-accommodating-container opening is sealed by a seal member |
| US6535699B1 (en) * | 2000-04-07 | 2003-03-18 | Canon Kabushiki Kaisha | Developer container, developer amount detecting system, process cartridge, developing device, and image forming apparatus |
| CN1410850A (en) * | 2001-10-01 | 2003-04-16 | 佳能株式会社 | Electronic photographing imaging device with detachable imaging processing box |
| CN1428668A (en) * | 2001-12-28 | 2003-07-09 | 佳能株式会社 | Imaging cartridge and electronic camera-shooting image forming device |
| CN1462911A (en) * | 2002-05-31 | 2003-12-24 | 佳能株式会社 | Ink box and electronic photograph imaging appts. |
| US6671474B2 (en) * | 2001-01-19 | 2003-12-30 | Canon Kabushiki Kaisha | Developer container, process cartridge, and electrophotographic image forming apparatus |
-
2004
- 2004-12-30 CN CNB2004101035930A patent/CN100440072C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6512903B2 (en) * | 1999-02-16 | 2003-01-28 | Canon Kabushiki Kaisha | Developer accommodating container, a developing device, a process cartridge, and an image forming apparatus whose developer-accommodating-container opening is sealed by a seal member |
| US6535699B1 (en) * | 2000-04-07 | 2003-03-18 | Canon Kabushiki Kaisha | Developer container, developer amount detecting system, process cartridge, developing device, and image forming apparatus |
| US6671474B2 (en) * | 2001-01-19 | 2003-12-30 | Canon Kabushiki Kaisha | Developer container, process cartridge, and electrophotographic image forming apparatus |
| CN1387096A (en) * | 2001-03-09 | 2002-12-25 | 佳能株式会社 | Processing cassette and electronic photography imaging apparatus |
| CN1410850A (en) * | 2001-10-01 | 2003-04-16 | 佳能株式会社 | Electronic photographing imaging device with detachable imaging processing box |
| CN1428668A (en) * | 2001-12-28 | 2003-07-09 | 佳能株式会社 | Imaging cartridge and electronic camera-shooting image forming device |
| CN1462911A (en) * | 2002-05-31 | 2003-12-24 | 佳能株式会社 | Ink box and electronic photograph imaging appts. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1728013A (en) | 2006-02-01 |
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