JP2020086182A - Developing device, cartridge - Google Patents

Abstract

To provide a developing device having a sealing configuration of improved sealability while ensuring durability of a seal member.SOLUTION: The developing device has a seal member including a base cloth and pile yarns standing up from the base cloth, which has a surface layer coated with powder. The pile yarn has first fibers, which are a chemical fiber and a second fiber that includes at least one of the cotton fiber and fiber the charge sequence of which is higher than the cotton fiber. The ratio of the second fiber to the whole pile yarn is 70% or more, the charging train of the second fiber is higher than the charging train of the toner, and the charging train of the granular material is lower than the charging train of the toner.SELECTED DRAWING: Figure 1

Description

The present invention relates to a developing device used in an image forming apparatus such as a copying machine or a printer using an electrophotographic method, and a cartridge including the developing device. The developing device is a device that supplies toner to the electrophotographic photosensitive member. The cartridge includes a developing device and is configured to be attachable to and detachable from the main body of the image forming apparatus.

In an electrophotographic image forming apparatus, a developing roller included in a developing device supplies toner to a photoconductor to visualize an electrostatic latent image on the photoconductor as a toner image. Sealing members are provided at both ends of the developing roller in the rotational axis direction to prevent the toner contained in the developing device from leaking to the outside of the developing device. The developing device has a sealing member in which a surface layer formed of a fiber material and an intermediate layer formed of an elastic member are attached and integrated. The seal member is provided so as to be compressed between the developing roller and the developing device frame (Patent Document 1).

As the surface layer of the seal member, a pile fabric composed of a base fabric and pile yarns raised on the base fabric is used. Since the surface layer constantly rubs against the developing roller, a balance between durability and sealability is required.

JP, 2017-62290, A

However, when the toner enters between the seal member and the developing roller, the frictional heat generated by their sliding melts the toner on the surface layer of the seal member, and the melted toner enters between the pile threads and seals. There is a problem that the sex may be impaired. In particular, in the case of a developing device that accommodates a toner having a low melting point for energy saving, the toner is likely to be melted by frictional heat, and therefore the above-mentioned problem is likely to occur.

An object of the present invention is to provide a developing device provided with a seal structure that has improved sealability while ensuring durability.

An aspect of the present invention for solving the above-mentioned problems is to provide a frame having an accommodating portion that accommodates toner,
A developing roller that is rotatably supported by the frame body and that supplies the negatively charged toner to the photoconductor, and a surface layer that slides on the developing roller are provided. In a developing device having an end seal that seals a gap between an end portion and the frame body, and a powder or granular material applied to the surface layer, the surface layer is a base cloth, and pile yarns napped from the base cloth. And the pile yarn includes a first fiber that is a chemical fiber, and a second fiber that includes at least one of a cotton fiber and a fiber having a higher charge sequence than the cotton fiber. The proportion of the second fibers in the entire pile yarn is 70% or more, the charge sequence of the second fibers is higher than the charge sequence of the toner, and the charge sequence of the powdery or granular material is Is lower than the charge train of the toner.

According to the present invention, it is possible to provide a developing device having a seal structure in which the sealability is further improved while ensuring the durability of the seal member.

FIG. 6 is a perspective view showing a configuration of a developing end seal member. FIG. 3 is a cross-sectional view of an apparatus body and a cartridge of the image forming apparatus. It is a sectional view of a cartridge. FIG. 3 is a perspective view illustrating a configuration of a process cartridge. It is a perspective view explaining the composition of a cleaning unit. FIG. 3 is a perspective view illustrating a configuration of a developing unit. FIG. 3 is a perspective view showing a seal configuration of an end portion of a developing roller.

<Example 1>
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The longitudinal direction of the rotation axis of the photosensitive drum is C (see FIG. 4). Further, in the longitudinal direction C, in the apparatus main body A of the image forming apparatus, the side where the image carrier receives the driving force from the apparatus main body A is the driving side, and the opposite side is the non-driving side. The overall configuration and image forming process will be described with reference to FIGS. 2 and 3. FIG. 2 is a cross-sectional view of the apparatus main body A and the cartridge B, which is an embodiment of the present invention. FIG. 3 is a sectional view of the cartridge B.

Here, the apparatus main body A of the electrophotographic image forming apparatus is a portion of the electrophotographic image forming apparatus excluding the cartridge B.

(1) Image Forming Apparatus In FIG. 2, the image forming apparatus has an apparatus main body A and a cartridge B, and the cartridge B is configured to be attachable to and detachable from the apparatus main body A. When the cartridge B is attached to the apparatus main body A, the exposure device 3 (laser scanner unit) is arranged above the cartridge B. Further, below the cartridge B, a sheet tray 4 accommodating a recording medium (hereinafter, referred to as a sheet material P) to be image-formed is arranged. Further, in the apparatus main assembly A, the pickup roller 5a, the feeding roller pair 5b, the conveyance roller pair 5c, the transfer guide 6, the transfer roller 7, the conveyance guide 8, the fixing device 9, along the conveyance direction D of the sheet material P, A pair of discharge rollers 10 and a discharge tray 11 are sequentially arranged. The fixing device 9 is composed of a heating roller 9a and a pressure roller 9b.

(2) Image forming process The outline of the image forming process will be described. Based on the print start signal, the drum 62 as the electrophotographic photosensitive member is rotationally driven in the arrow R direction at a predetermined peripheral speed (process speed). The charging roller 66 to which the bias voltage is applied contacts the outer peripheral surface of the drum 62 and uniformly charges the outer peripheral surface of the drum 62.

The exposure device 3 outputs a laser beam L according to image information. The laser light L passes through the exposure window portion 74 on the upper surface of the cartridge B and scans and exposes the outer peripheral surface of the drum 62. As a result, an electrostatic latent image corresponding to the image information is formed on the outer peripheral surface of the drum 62.

On the other hand, as shown in FIG. 3, in the developing device 20 as the developing device, the toner T in the toner chamber 29 is agitated and conveyed by the rotation of the conveying member 43, and sent to the toner supply chamber 28.

The toner T is carried on the surface of the developing roller 32 as a developer carrying member by the magnetic force of the magnet roller 34 (fixed magnet). The toner T is frictionally charged by the developing blade 42, and the layer thickness of the peripheral surface of the developing roller 32 is regulated. The toner T that has passed through the developing blade 42 is supplied onto the drum 62, and the electrostatic image is visualized as a toner image.

In addition, as shown in FIG. 2, the sheet material P stored in the lower portion of the apparatus main body A is picked up by the pickup roller 5a, the feeding roller pair 5b, and the conveying roller pair 5c in synchronization with the output timing of the laser light L. Delivered from 4.

Then, the sheet material P is supplied to the transfer position between the drum 62 and the transfer roller 7 via the transfer guide 6. At this transfer position, the toner image is sequentially transferred from the drum 62 to the sheet material P.

The sheet material P to which the toner image is transferred is separated from the drum 62 and is conveyed to the fixing device 9 along the conveyance guide 8. Then, the sheet material P passes through a nip portion between the heating roller 9a and the pressure roller 9b which form the fixing device 9.

The toner image is fixed on the sheet material P by pressure/heat fixing processing in this nip portion. The sheet material P that has undergone the toner image fixing process is conveyed to the discharge roller pair 10 and discharged to the discharge tray 11.

On the other hand, as shown in FIG. 3, the residual toner on the outer peripheral surface of the drum 62 after transfer is removed by the cleaning blade 77, and is used again in the image forming process. The toner removed from the drum 62 is stored in the waste toner chamber 71b of the cleaning unit 60.

(3) Cartridge Next, the overall configuration of the cartridge B will be described with reference to FIGS. 3 and 4. FIG. 4 is a perspective view illustrating the configuration of the cartridge B. The cartridge B is configured by combining the cleaning unit 60 and the developing device 20.

The cleaning unit 60 includes a cleaning frame body 71 (second frame body), a drum 62, a charging roller 66, and a cleaning blade 77.

The developing device 20 includes a bottom member 22, a developing container 23, a first side member 26L, a second side member 26R, a developing blade 42, a developing roller 32, a magnet roller 34, a conveying member 43, a toner T, and a biasing member 46. .. The bottom member 22, the developing container 23, the first side member 26L, and the second side member 26L are collectively referred to as a developing frame body (first frame body).

The cleaning unit 60 and the developing device 20 are rotatably connected to each other by a connecting member 75 to form the cartridge B. Rotation holes parallel to the developing roller 32 are formed at the tips of the arm portions 26aL and 26aR formed on the first side member 26L and the second side member 26R at both ends of the developing device 20 in the longitudinal direction (axial direction of the developing roller 32). 26bL and 26bR are provided. Further, fitting holes 71aL and 71aR for fitting the coupling member 75 are formed at both longitudinal ends of the cleaning frame 71. The arms 26aL and 26aR are aligned with predetermined positions of the cleaning frame 71, and the coupling member 75 is inserted into the rotation holes 26bL and 26bR and the insertion holes 71aL and 71aR. As a result, the cleaning unit 60 and the developing device 20 are rotatably connected to each other about the connecting member 75. The urging member 46 attached to the bases of the arms 26aL and 26aR contacts the cleaning frame 71, and urges the developing device 20 to the cleaning unit 60 with the connecting member 75 as the center of rotation. As a result, the developing roller 32 is reliably pressed toward the drum 62. The developing roller 32 is held at a predetermined distance from the drum 62 by the distance holding members 38 (see FIG. 6) attached to both ends of the developing roller 32.

(4) Cleaning Unit The configuration of the cleaning unit 60 will be described with reference to FIG. FIG. 5 is a perspective view illustrating the configuration of the cleaning unit 60.

The cleaning blade 77 includes a support member 77a formed of sheet metal and an elastic member 77b formed of an elastic material such as urethane rubber. Both ends of the support member 77a are fixed to the cleaning frame body 71 with screws 91. ing. The elastic member 77b contacts the drum 62 and removes the residual toner from the outer peripheral surface of the drum 62. The removed residual toner is stored in the waste toner chamber 71b of the cleaning unit 60 shown in FIG.

The first seal member 82, the second seal member 83, the third seal member 84, and the fourth seal member 85 are provided at predetermined positions on the cleaning frame 71. The first seal member 82 is long in the longitudinal direction C and suppresses the waste toner from leaking out from the gap between the cleaning frame body 71 and the support member 77a of the cleaning blade 77. The second seal member 83 prevents the waste toner from leaking from both longitudinal ends of the elastic member 77b of the cleaning blade 77. The third seal member 84 wipes off adhering substances such as toner on the drum 62 while suppressing leakage of waste toner from both longitudinal ends of the elastic member 77b of the cleaning blade 77. The fourth seal member 85 is provided in contact with the drum 62 over the longitudinal direction, and suppresses the leakage of the waste toner from the upstream side in the rotation direction of the drum 62 with respect to the cleaning blade 77.

The charging electrode member 81, the charging roller urging member 68, and the charging roller bearings 67L and 67R are attached to the cleaning frame 71.

The shaft portion 66a of the charging roller 66 is fitted into the charging roller bearings 67L and 67R. The charging roller 66 is urged against the drum 62 by the charging roller urging member 68, and is rotatably supported by the charging roller bearings 67L and 67R. Then, it is driven to rotate as the drum 62 rotates.

The charging electrode member 81, the charging roller biasing member 68, the charging roller bearing 67L, and the shaft portion 66a have conductivity. The charging electrode member 81 is in contact with a power feeding section (not shown) of the apparatus main body A. Power is supplied to the charging roller 66 using these as power supply paths.

The flange 64 and the flange 63 are assembled to the drum 62 to form the drum unit 61. This joining method uses caulking, adhesion, welding, or the like.

A ground contact or the like (not shown) is coupled to the flange 64. The flange 63 has a coupling member 86 that receives a driving force from the apparatus main assembly A and a flange gear portion 63b that transmits the driving force to the developing roller 32.

The bearing member 76 is integrally fixed to the driving side of the cleaning frame 71 by screws 90, and the drum shaft 78 is press-fitted and fixed to the non-driving side of the cleaning frame 71. Then, the bearing member 76 fits into the flange 63, and the drum shaft 78 fits into the hole 64 a of the flange 64.

As a result, the drum unit 61 is rotatably supported by the cleaning frame 71.

The protection member 79 is rotatably supported by the cleaning frame 71 so that the drum 62 can be protected (shielded) and exposed.

The biasing member 80 is attached to the shaft portion 79aR on the drive side of the protection member 79, and biases the protection member 79 in a direction in which the protection member 79 remains in a position that protects the drum 62.

The non-driving side shaft portion 79aL and the driving side shaft portion 79aR of the protection member 79 are fitted to the bearing portions 71cL and 71cR of the cleaning frame body 71.

(5) Developing Device The configuration of the developing device 20 will be described with reference to FIGS. 3 and 6. FIG. 6 is a perspective view illustrating the configuration of the developing device 20. As shown in FIG. 3, the developing container 23 and the bottom member 22 as a developing frame form a toner chamber 29 for containing the toner T and a toner supply chamber 28. The toner T of this embodiment is a toner containing styrene acrylic resin as a binder resin.

The bottom member 22 and the developing container 23 are integrally joined by means such as welding. The non-driving side of the carrying member 43 is supported by the developing container 23, and the driving side of the carrying member 43 is supported by the carrying gear 50 attached to the developing container 23. As a result, the transport member 43 rotates in the toner chamber 29 according to the transport gear 50.

The developing blade 42 includes a conductive support member 42a formed of sheet metal and a development elastic member 42b formed of an elastic material such as urethane rubber, and both ends of the conductive support member 42a are screwed together with the cleaning member 47. At 93, the developing container 23 is fixed at a predetermined position. The developing elastic member 42b contacts the developing roller 32, regulates the layer thickness of the toner on the peripheral surface of the developing roller 32, and rubs the toner to negatively charge the toner.

The cleaning member 47 comes into contact with the end surface of the developing roller 32 and cleans adhered substances such as toner.

The developing roller unit 31 includes a developing roller 32, a magnet roller 34, a flange 35, a spacing member 38, bearing members 37L and 37R, and a developing roller gear 39. The magnet roller 34 is inserted from the non-driving side end of the developing roller 32, and the flange 35 is press-fitted and fixed to the end. A conductive electrode member (not shown) is incorporated in the flange 35, and the electrode member (not shown) is in contact with the developing roller 32 and the developing electrode member 27.

The conductive developing electrode member 27 is fixed to the first side member 26L. The developing electrode member 27 is in contact with a power feeding portion (not shown) of the apparatus main body A, and feeds power to the developing roller 32 using the developing electrode member 27 and an electrode member (not shown) as a power feeding path. Further, the developing electrode member 27 also forms a power feeding path in the conductive supporting member 42a that constitutes the developing blade 42, and keeps the developing roller 32 and the developing blade 42 at the same potential. It is attached to both ends. Bearing members 37L and 37R are arranged on the outer side thereof, and the developing roller gear 39 is incorporated on the outer side thereof on the driving side. The developing roller 32 is rotatably supported by bearing members 37L and 37R arranged at both longitudinal ends.

As shown in FIG. 6, the first gear 48 and the second gear 49, which are drive transmission members, are rotatably attached to the developing device frame. As a result, the driving force received from the main assembly A of the apparatus causes the flange gear portion 63b, the developing roller gear 39, the first gear 48, the second gear 49, and the conveying gear 50 to sequentially mesh with each other and rotate, whereby the developing roller 32 and the conveying roller 50 are conveyed. It is transmitted to the member 43.

The first side member 26L and the second side member 26R are fixed to the developing device frame with screws 92 at both ends in the longitudinal direction. At that time, the bearing members 37L and 37R of the developing roller unit 31 are held by the first side member 26L and the second side member 26R.

The toner seal member 45 is heat-welded to the developing container 23 and separates the toner container 29 and the toner supply chamber 28 shown in FIG. This prevents the toner T from leaking from the toner chamber 29 during the transportation of the cartridge B.

When the user opens the toner seal member 45, the toner T is supplied to the toner supply chamber 28 (see FIG. 3).

The first seal member 55, the second seal member (developing seal member 56), and the third seal member 57 are provided at predetermined positions in the developing container 23. The fourth sealing member 58 is provided at a predetermined position on the bottom member 22 after the developing container 23 and the bottom member 22 are coupled to each other. Further, the fifth seal member 59 is arranged in the developing container 23.

The first seal member 55 suppresses the toner T from leaking from both longitudinal ends of the developing elastic member 42b of the developing blade 42. The developing seal member 56 is provided at the longitudinal end of the active container 23 so as to be compressed between the developing roller 32 and the developing container 23, and prevents the toner T from leaking out from both longitudinal ends of the developing roller 32. ..

The third seal member 57 is provided in the longitudinal direction and suppresses the toner T from leaking through the gap between the conductive support member 42 a of the developing blade 42 and the developing container 23.

The fourth seal member 58 is a flexible sheet made of a material such as PET or PPS, and is provided in contact with the developing roller 32 over the longitudinal direction as shown in FIG. Suppress leaking. Further, when the developing roller 32 rotates, the toner T carried on the developing roller 32 passes through the flexible seal member 58 and is collected in the toner supply chamber 28.

When the toner seal member 45 is unsealed and is taken out of the developing device 20 through the take-out opening (not shown), the fifth seal member 59 wipes off the toner T adhering to the surface of the toner seal member 45 and takes out the fifth seal member 59 at the same time. The toner T is prevented from leaking in close contact with the opening.

(6) Developing End Seal Member The developing seal member 56 will be described in more detail. As shown in FIG. 1, the development seal member 56 includes a surface layer 56a, an intermediate layer 56c (elastic layer), an adhesive layer 56b for adhering the surface layer 56a and the intermediate layer 56c, and an attachment layer 56d for fixing the intermediate layer 56c to the developing container 23. Composed of. The surface layer 56a has a base cloth 56a2 and a pile yarn 56a1 raised (raised) from the base cloth 56a2. The intermediate layer 56c is a cushion layer formed of an elastic body. The material of the intermediate layer 56c is a foam of synthetic resin such as polyurethane. Materials for the pile yarn 56a1 include the following. Synthetic fibers (chemical fibers) such as polyethylene, polypropylene, polyester, nylon, acrylic fibers, and polyethylene terephthalate, semi-synthetic fibers such as rayon, natural fibers such as cotton, cotton, and the like, or a combination of these and twist processing. In this embodiment, as the material of the pile yarn 56a1, a mixture of acrylic resin and cotton is used. Since synthetic fibers generally have high strength, they contribute to improving the durability of the developing seal member 56. Since the acrylic fiber has high flexibility, it has a good slip property with respect to the developing roller 32. The acrylic fiber mentioned here is a synthetic fiber whose main raw material is acrylonitrile.

On the other hand, the cotton fiber is excellent in the ability to collect the toner T and therefore contributes to the improvement of the sealing property. The blending ratio of acrylic fiber and cotton fiber is determined in consideration of the configuration and life of the developing device and the physical properties of the toner T used.

As shown in FIG. 7, the pile yarn 56a1 is configured to move inward in the longitudinal direction from the upstream side to the downstream side in the rotation direction S of the developing roller 32 (direction of arrow G in the figure). Due to this bristle flow direction G, the toner T that has entered between the developing roller 32 and the surface layer 56a and collected by the pile yarn 56a1 is sequentially attracted to the toner supply chamber 28 as the developing roller 32 rotates.

(7) Particles The particles 54 are applied to the surface layer 56a of the developing seal member 56. The powder particles 54 applied to the surface layer 56a fill the gaps between the developing roller 32 and the surface layer 56a and the gaps between the fibers of the pile yarn 56a1. As a result, the invasion of the toner T into these gaps is suppressed.

The powder particles 54 have a smaller particle size than the toner T and have a spherical shape. If the powder particles 54 have a small particle size, the gap can be filled more densely. In particular, when the above-mentioned gap is sufficiently filled with the powder particles 54 having a particle size smaller than the particle size of the toner T, the gap into which the toner T enters becomes extremely small. If the powder particles 54 are spherical, the action of sequentially scraping the toner T into the toner supply chamber 28 with the rotation of the developing roller 32 is promoted, so that the sealing property is improved.

The charge train of the powder particles 54 is lower than the charge train of the toner T, and is charged to the same polarity (negative polarity) as the toner T when it rubs against the cotton fiber of the pile yarn 56a1 described later.

(8) Selection of pile yarn and powder and granules In this embodiment, the pile yarn 56a1 was made by mixing 70% cotton fiber and 30% acrylic fiber.

The charge train of the cotton fiber is higher than the charge train of the toner T. As described above, the charge train of the powder particles 54 is lower than the charge train of the toner T. That is, the charge train of the cotton fibers is higher than the powder or granular material 54. Therefore, when the developing roller 32 rotates and the powder particles 54 rub against the pile yarn 56a1, the cotton fibers of the pile yarn 56a1 are positively charged and the powder particles 54 are negatively charged. As a result, the cotton fibers and the particles 54 are electrically attracted to each other, and the particles 54 are held on the pile yarn 56a1. Therefore, the effect of the particles 54 can be maintained throughout the life of the developing device 20. In addition, since the toner T is also negatively charged as described above, the toner T and the powder particles 54 electrically repel each other. As a result, it becomes difficult for the toner T to enter the gap between the developing roller 32 and the surface layer 56a and the gap between the fibers of the pile yarn 56a1. That is, the sealing property is improved. An example of the powder particles 54 is Tospearl (registered trademark) model number 120, which is a silicone resin particle, manufactured by Momentive Co., Ltd. Furthermore, the pile yarn 56a1 can ensure the durability of the surface layer 56a by including synthetic fibers (chemical fibers) such as acrylic fibers.

(9) Verification Results Table 1 is a table showing the relationship between the blending ratio of cotton fibers and acrylic fibers and the sealing performance. The verification evaluates the state of the developing roller 32 when the developing seal member 56 and the developing roller 32 are slid for 2 hours in an environment where the room temperature is 37.5° C. and the humidity is 50%. As the toner T, an unused black toner was used. The case where the toner T is melted by the sliding and adhered to the developing roller 32 is confirmed as x, and the case where it is not confirmed is indicated as ◯.

From the verification results, it was confirmed that the sealing property was good when the content rate of the cotton fiber was 70% or more. Regarding the durability, it was confirmed that the condition of Test 2 in which the acrylic content was 30% was sufficient.

As described above, in the developing seal member of the present embodiment, while the surface pile yarn contains the acrylic fiber, the durability of the surface layer is ensured, and the ratio of the cotton fiber to the whole pile yarn is 70% or more. By doing so, the sealing property is improved. As a result, it is possible to improve the sealing property while ensuring the durability of the developing seal member.
The pile yarn of this embodiment contains acrylic fibers and cotton fibers, but is not limited to this. The pile yarn has a first fiber that is a chemical fiber and a second fiber that includes at least one of a cotton fiber and a fiber having a higher electrification series than the cotton fiber, and occupies the entire pile yarn. If the proportion of the second fiber is 70% or more, the effect of the present invention is achieved.

20 developing device 22 bottom member 23 developing container 32 developing roller 42 developing blade 56 developing seal member 56a surface layer 56a1 pile yarn 56a2 base cloth 56b adhesive layer 56c intermediate layer 60 cleaning unit 61 drum unit 62 drum 71 cleaning frame T toner

Claims (9)

A frame body having a storage portion for storing toner;
A developing roller that is rotatably supported by the frame and supplies the negatively charged toner to the photoconductor;
An end seal having a surface layer that slides on the developing roller, and seals a gap between the end of the developing roller and the frame in the rotation axis direction of the developing roller,
With the granular material applied to the surface layer,
In a developing device having
The surface layer has a base fabric and a pile yarn that is napped from the base fabric,
The pile yarn has a first fiber that is a chemical fiber, and a second fiber that includes at least one of a cotton fiber and a fiber having a higher electrification series than the cotton fiber, and the entire pile yarn. The ratio of the second fiber to 70% or more,
The developing device, wherein the charge train of the second fibers is higher than the charge train of the toner, and the charge train of the powdery particles is lower than the charge train of the toner. The developing device according to claim 1, wherein the second fiber is a cotton fiber. The developing device according to claim 1, wherein the first fiber is an acrylic fiber. The developing device according to claim 1, wherein a particle size of the powder particles is smaller than a particle size of the toner. The developing device according to claim 1, wherein the powdery particles are particles formed of a silicone resin. The developing device has a developing blade that is in contact with the developing roller and regulates a layer thickness of the toner carried on the surface of the developing roller,
6. The developing device according to claim 1, wherein the toner is rubbed against the developing blade to be negatively charged. The end seal further includes an elastic layer, an adhesive layer for adhering the surface layer and the elastic layer, and an adhesive layer for adhering the elastic layer to the frame body. 7. The developing device according to claim 1. A developing device according to any one of claims 1 to 7 is included,
A cartridge configured to be attachable to and detachable from the main body of the image forming apparatus. When the frame is the first frame,
The photoconductor,
A second frame member that supports the photoconductor so that the photoconductor can rotate;
Have
The cartridge according to claim 8, wherein the second frame body is connected to the first frame body.

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