Powder box and image forming apparatus

Abstract

The embodiment of the utility model provides a powder box and an image forming device, and relates to the technical field of printing, the powder box comprises a shell, a first driving structure, a second driving structure and a joint part, the shell is provided with a first end and a second end; the first driving structure is arranged at the first end, and the first driving structure is provided with a first rotation axis; the second driving structure is arranged at the first end and is provided with a second rotating axis, and the second rotating axis is far away from the drawer relative to the first rotating axis in the height direction of the powder box; the joint portion is connected with the first end. In the printing process of the image forming device, shaking of the powder box relative to the drawer can be limited through clamping of the clamping area of the joint part of the powder box and the matching part on the drawer, so that the color register error among four colors can be reduced, and then the printing quality can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing technical field especially, relate to a powder box and image forming device. BACKGROUND

[0002] The powder box is detachably installed in the image forming device for imaging, and the powder box comprises a developing box and a drum assembly, the developing box comprises a developing roller and a powder outlet knife, and the drum assembly comprises a photosensitive drum and a charging roller.

[0003] In the related art, the image forming device comprises a device main body and four powder boxes, the four powder boxes are installed on a drawer of the device main body, and the four powder boxes correspond to four colors respectively.

[0004] However, in the printing process of the image forming device, the color registration error between the four colors becomes large, which affects the printing quality. UTILITY MODEL CONTENTS

[0005] The utility model discloses a powder box and image forming device, to solve the problem that the color registration error between four colors becomes large in the printing process of image forming device, and the printing quality is affected.

[0006] On the one hand, the utility model discloses a powder box, and the powder box is detachably installed on the device main body of the image forming device, the device main body comprises a drawer, the powder box is installed on the drawer, and the powder box comprises:

[0007] The shell comprises an end cover, the end cover has a top first end and a bottom second end, and the top first end and the bottom second end are oppositely arranged in the height direction of the powder box;

[0008] The first driving structure is arranged on the end cover, and the first driving structure has a first rotation axis;

[0009] A second driving structure is provided on the end cover, and has a second rotation axis, which is away from the bottom second end of the powder cartridge relative to the first rotation axis in the height direction of the powder cartridge.

[0010] A joint part is connected with the end cover, and has an engagement area for engaging with a matching part on the drawer, the engagement area is closer to the bottom second end of the powder cartridge relative to the top side of the first driving structure and the top side of the second driving structure in the height direction of the powder cartridge.

[0011] In a possible implementation, the joint part is closer to the first driving structure relative to the second driving structure.

[0012] In a possible implementation, the joint part is detachably connected with the housing, or the joint part is integrally formed with the housing.

[0013] In a possible implementation, the joint part has a contact surface for engaging with the matching part on the drawer, the contact surface is the engagement area, the contact surface is closer to the bottom second end of the powder cartridge relative to the top side of the first driving structure and the top side of the second driving structure in the height direction of the powder cartridge, and the contact surface is away from the bottom second end of the powder cartridge relative to the first rotation axis.

[0014] In a possible implementation, the joint part includes a first connecting section and a second connecting section, the first connecting section is connected with the end cover, the second connecting section is connected with the first connecting section, and the contact surface is provided on the second connecting section.

[0015] In a possible implementation, the second connecting section includes a first inclined surface and a first transition surface, the first transition surface is connected with the contact surface and the first inclined surface respectively, and the first inclined surface is closer to the bottom second end of the powder cartridge relative to the contact surface and the first transition surface in the height direction of the powder cartridge.

[0016] In a possible implementation, the powder cartridge further includes a photosensitive drum and a developing roller, the photosensitive drum and the developing roller are rotatably provided on the housing respectively, the photosensitive drum is connected with the first driving structure, and the developing roller is connected with the second driving structure.

[0017] In another aspect, the embodiment of the utility model provides a kind of image forming device, including device main body and like above drawer, the matching part is provided on the drawer, and the engagement of the joint part of the powder cartridge is engaged with the matching part.

[0018] In one possible implementation, the drawer is provided with a plurality of mating parts, which are spaced apart along the length of the drawer.

[0019] In one possible implementation, the mating part is detachably connected to the drawer; or, the mating part is integrally formed with the drawer.

[0020] In one possible implementation, the mating part is disposed on the top side of the drawer, the mating part having a locking hole that engages with the contact surface of the mating part.

[0021] This utility model provides a toner cartridge and an image forming apparatus. During the printing process, the engaging area of ​​the toner cartridge's joint engages with the mating part on the drawer, limiting the toner cartridge's relative movement to the drawer, thereby reducing registration errors between the four colors and improving print quality. The engaging area of ​​the toner cartridge's joint also increases the installation stability between the toner cartridge and the drawer. During transport of the image forming apparatus, in the event of a drop or collision, the engaging area of ​​the toner cartridge's joint with the mating part on the drawer reduces the impact of the toner cartridge on the main body of the apparatus. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an image forming apparatus provided in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the image forming apparatus after the drawer has been pulled out.

[0025] Figure 3 for Figure 2 A schematic diagram of the powder box being installed on a drawer;

[0026] Figure 4 This is a schematic diagram of the structure of a powder box provided in an embodiment of the present utility model;

[0027] Figure 5 for Figure 3 An enlarged view of point A in the diagram;

[0028] Figure 6 for Figure 4a cross-sectional view of the powder box in the powder box;

[0029] Figure 7 is Figure 6 an enlarged view of B in the powder box;

[0030] Figure 8 is Figure 2 a first perspective view of the drawer in the powder box;

[0031] Figure 9 is Figure 2 a second perspective view of the drawer in the powder box.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 10-powder box; 11-housing; 111-end cover; 111a-top first end; 111b-bottom second end; 113, third end; 114-fourth end; 115-fifth end; 12-first driving structure; 13-second driving structure; 14-joint; 141-contact surface; 142-first inclined surface; 143-first transition surface; 14a-first connecting section; 14b-second connecting section; 100-device body; 101-drawer; 1011-mounting position; 102-mating part; 1021-clamping hole; 1022-guiding surface. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] It should be noted that the terms "first", "second" are only used for description purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "fix" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection or each other can communicate;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication or the interaction of two elements of two elements, unless another definite limitation.For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium.Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature.The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0038] In the above description, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in the embodiment or example are included in at least one embodiment or example of the utility model.In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, the skilled person in the art can combine and combine different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0039] As described in the background, during the printing process of the image forming device, the color registration error between the four colors becomes large, which affects the printing quality.After research, it is found that the reason for this problem is that, during the printing process of the image forming device, the first driving structure corresponding to the photosensitive drum rotates counterclockwise and shakes, the first driving structure can provide power to make the powder box shake counterclockwise as a rotation center, which causes the color registration error between the four colors to become large, which affects the printing quality.

[0040] In order to solve the above problems, the utility model embodiment provides a powder box and image forming device, the powder box sets the joint, the drawer sets the matching part, during the printing process of the image forming device, the powder box can be limited to shake relative to the drawer, so that the color registration error between the four colors can be reduced, and the printing quality can be improved.

[0041] The powder box and the image forming device provided by the embodiments of the present application will be described in detail below in combination with specific embodiments.

[0042] Referring to FIGS. 1 and 2, Figure 1 and Figure 2 The embodiments of the present application provide a powder box 10, which is detachably installed on a device main body 100 of an image forming device.

[0043] The device main body 100 includes a drawer 101, and the powder box 10 is installed on the drawer 101.

[0044] In some examples, referring to FIGS. 1 and 2, Figure 3 The drawer 101 is provided with four installation positions 1011, and each installation position 1011 is used to install one powder box 10. It can be understood that the drawer 101 can install four powder boxes 10, and the four powder boxes 10 correspond to four colors (cyan, magenta, yellow, and black) respectively.

[0045] In some examples, the length direction of the powder box 10 is the X-axis direction, the width direction of the powder box 10 is the Y-axis direction, and the height direction of the powder box 10 is the Z-axis direction. The X-axis, the Y-axis, and the Z-axis are perpendicular to each other.

[0046] Referring to FIGS. 1 and 2, Figure 4 The powder box 10 can include a shell 11. The shell 11 internally contains toner.

[0047] In some examples, the shell 11 has an end cover 111, the bottom surface of the end cover 111 is arranged on one side in the -Z-axis direction of the end cover 111, and the top surface of the end cover 111 is arranged on one side in the +Z-axis direction of the end cover 111.

[0048] The end cover 111 has a top surface first end 111a and a bottom surface second end 111b. The top surface first end 111a and the bottom surface second end 111b are oppositely arranged in the height direction of the powder box 10, the top surface first end 111a is on one side in the +Z-axis direction of the end cover 111, and the bottom surface second end 111b is on one side in the -Z-axis direction of the shell 11.

[0049] The shell 11 has a third end 113 and a fourth end 114. The third end 113 and the fourth end 114 are oppositely arranged in the width direction of the powder box 10, the third end 113 is on one side in the -Y-axis direction of the shell 11, and the fourth end 114 is on one side in the +Y-axis direction of the shell 11.

[0050] The shell 11 has a fifth end 115 and a sixth end. The fifth end 115 and the sixth end are oppositely arranged in the length direction of the powder box 10, the fifth end 115 is on one side in the -X-axis direction of the shell 11, and the sixth end is on one side in the +X-axis direction of the shell 11. The end cover 111 is located at the sixth end of the shell 11.

[0051] In some examples, the toner cartridge 10 can include a developing cartridge including a storage cartridge containing toner, a developing roller, and a powder outlet blade, and a drum assembly including a photosensitive drum and a charging roller. The housing 11 includes a wall forming the storage cartridge, and the photosensitive drum and the developing roller are respectively rotatably provided on the housing 11.

[0052] The toner cartridge 10 can further include a first driving structure 12. The photosensitive drum is connected with the first driving structure 12. The first driving structure 12 is configured to be driven by a driving force of the device main body 100 of the image forming apparatus to which the toner cartridge 10 is received, and the first driving structure 12 can drive the photosensitive drum to rotate.

[0053] The first driving structure 12 can include a first gear.

[0054] The first driving structure 12 is provided on the end cover 111. The first driving structure 12 has a first rotation axis L1.

[0055] In some examples, the first rotation axis L1 extends along a length direction of the toner cartridge 10. The first driving structure 12 is configured to be rotated in the -W direction by the driving force of the device main body 100, and the first driving structure 12 can drive the photosensitive drum to rotate in the -W direction.

[0056] In some examples, a side of the first driving structure 12 in the +Z-axis direction is a top side of the first driving structure 12, and a side of the first driving structure 12 in the -Z-axis direction is a bottom side of the first driving structure 12.

[0057] The toner cartridge 10 can further include a second driving structure 13. The developing roller is connected with the second driving structure 13. The second driving structure 13 is configured to be driven by a driving force of the device main body 100 of the image forming apparatus to which the toner cartridge 10 is received, and the second driving structure 13 can drive the developing roller to rotate.

[0058] The second driving structure 13 can include a second gear.

[0059] The second driving structure 13 is provided on the end cover 111. The second driving structure 13 has a second rotation axis L2.

[0060] In some examples, the second rotation axis L2 extends along a length direction of the toner cartridge 10. The second driving structure 13 is configured to be rotated in the +W direction by the driving force of the device main body 100, and the second driving structure 13 can drive the developing roller to rotate in the +W direction.

[0061] In some examples, a side of the second driving structure 13 in the +Z-axis direction is a top side of the second driving structure 13, and a side of the second driving structure 13 in the -Z-axis direction is a bottom side of the second driving structure 13.

[0062] In some examples, in the height direction of the powder cartridge 10, the second rotation axis L2 is away from the bottom second end 111b of the powder cartridge 10 relative to the first rotation axis L1. It can be understood that, when the powder cartridge 10 is installed in the drawer 101, in the height direction of the powder cartridge 10, the second rotation axis L2 is away from the drawer 101 relative to the first rotation axis L1, i.e., in the +Z axis direction, the second rotation axis L2 is higher than the first rotation axis L1.

[0063] In some examples, in the width direction of the powder cartridge 10, the second rotation axis L2 is closer to the third end 113 relative to the first rotation axis L1.

[0064] Referring to Figure 4 and Figure 5 As shown, the powder cartridge 10 can further include an engaging portion 14. The engaging portion 14 is connected with the end cover 111. It can be understood that the engaging portion 14, the first driving structure 12 and the second driving structure 13 are arranged on the same side of the housing 11.

[0065] The engaging portion 14 has an engaging area for engaging with the cooperating portion 102 on the drawer 101. In the height direction of the powder cartridge 10, the engaging area is closer to the bottom second end 111b of the powder cartridge 10 relative to the top side of the first driving structure 12 and the top side of the second driving structure 13. In this way, during the printing process of the image forming apparatus, by engaging the engaging area of the engaging portion 14 of the powder cartridge 10 with the cooperating portion 102 on the drawer 101, the shaking of the powder cartridge 10 relative to the drawer 101 can be limited, so that the color registration error between the four colors can be reduced, and thus the printing quality can be improved.

[0066] In some examples, referring to Figure 6 and Figure 7As shown, the engaging portion 14 has a contact surface 141 for engaging with the cooperating portion 102 on the drawer 101. The contact surface 141 is the engaging area of the engaging portion 14. In the height direction of the toner cartridge 10, the contact surface 141 is close to the bottom surface second end 111b of the toner cartridge 10 relative to the top side of the first driving structure 12 and the top side of the second driving structure 13. It can be understood that when the toner cartridge 10 is installed on the drawer 101, in the height direction of the toner cartridge 10, the contact surface 141 is close to the drawer 101 relative to the top side of the first driving structure 12 and the top side of the second driving structure 13, that is, in the +Z axis direction, the contact surface 141 is lower than the top side of the first driving structure 12 and the top side of the second driving structure 13. In the height direction of the toner cartridge 10, the contact surface 141 is away from the bottom surface second end 111b of the toner cartridge 10 relative to the first rotation axis L1, that is, in the +Z axis direction, the contact surface 141 is higher than the first rotation axis L1. In this way, during the printing process of the image forming apparatus, by engaging the contact surface 141 of the engaging portion 14 of the toner cartridge 10 with the cooperating portion 102 on the drawer 101, the shaking of the toner cartridge 10 relative to the drawer 101 can be limited, so as to reduce the color registration error between the four colors, and thus the printing quality can be improved.

[0067] By engaging the contact surface 141 of the engaging portion 14 of the toner cartridge 10 with the cooperating portion 102 on the drawer 101, the installation stability between the toner cartridge 10 and the drawer 101 can be increased.

[0068] During the transportation of the image forming apparatus, when a drop collision is encountered, by engaging the contact surface 141 of the engaging portion 14 of the toner cartridge 10 with the cooperating portion 102 on the drawer 101, the impact of the toner cartridge 10 on the device main body 100 can be reduced.

[0069] In a possible implementation, the engaging portion 14 is close to the first driving structure 12 relative to the second driving structure 13. In this way, the shaking of the toner cartridge 10 caused by the first driving structure 12 can be effectively suppressed, and the stability between the toner cartridge 10 and the drawer 101 during the printing process of the image forming apparatus can be improved.

[0070] In some examples, the engaging portion 14 can be arranged on one side of the first driving structure 12 in the +Y axis direction, that is, in the width direction of the toner cartridge 10, the engaging portion 14 is arranged close to the fourth end 114 relative to the first driving structure 12.

[0071] In a possible implementation, the engaging portion 14 can be integrally formed with the housing 11.

[0072] It should be noted that in other embodiments, the joint 14 can be detachably connected with the housing 11. In this way, when the joint 14 is damaged, the joint 14 can be replaced, thereby reducing the production cost of the powder cartridge 10. For example, the joint 14 can be snap-fitted with the housing 11.

[0073] In one possible implementation, the joint 14 can be a buckle. Referring to Figure 6 and Figure 7 As shown, the joint 14 includes a first connecting segment 14a connected with the end cover 111 and a second connecting segment 14b connected with the first connecting segment 14a, and the contact surface 141 is arranged on the second connecting segment 14b.

[0074] The second connecting segment 14b is arranged on one side of the first connecting segment 14a in the +X-axis direction.

[0075] Referring to Figure 8 As shown, the matching part 102 on the drawer 101 has a clamping hole 1021. When the powder cartridge 10 is installed on the drawer 101, the second connecting segment 14b of the joint 14 can be clamped in the clamping hole 1021 of the matching part 102, and the contact surface 141 is in contact with the matching part 102.

[0076] In some examples, the second connecting segment 14b includes a first inclined surface 142 and a first transition surface 143, and the first transition surface 143 is connected with the contact surface 141 and the first inclined surface 142, respectively. In the height direction of the powder cartridge 10, the first inclined surface 142 is closer to the bottom surface second end 111b of the powder cartridge 10 than the contact surface 141 and the first transition surface 143.

[0077] In some examples, the first inclined surface 142 is connected with the first transition surface 143. In the length direction of the powder cartridge 10, the end of the first inclined surface 142 connected with the first transition surface 143 is farther away from the fifth end 115 than the other end of the first inclined surface 142 not connected with the first transition surface 143.

[0078] Referring to Figure 9As shown, the fitting part 102 has a guide surface 1022. When the powder box 10 is installed in the drawer 101, the powder box 10 is loaded into the mounting position 1011 of the drawer 101 along the -Z direction, and the powder box 10 is pressed, then the first inclined surface 142 of the engaging part 14 is in contact with the guide surface 1022 of the fitting part 102, then the powder box 10 is continuously pressed, the second connecting section 14b of the engaging part 14 moves along the guide surface 1022, at this time, the engaging part 14 can be deformed, then the first inclined surface 142 of the engaging part 14 is separated from the guide surface 1022 of the fitting part 102, the first transition surface 143 is in contact with the guide surface 1022, then when the first transition surface 143 of the engaging part 14 is separated from the guide surface 1022 of the fitting part 102, the engaging part 14 is in contact with the fitting part 102 under the action of the elastic force of the engaging part 14, so that the second connecting section 14b of the engaging part 14 is clamped in the clamping hole 1021 of the fitting part 102.

[0079] In some examples, the powder box 10 is installed in the drawer 101, and the engaging part 14 of the powder box 10 is clamped with the fitting part 102 on the drawer 101. During the printing process of the image forming device, the device body 100 can drive the first driving structure 12 and the second driving structure 13 to rotate, the first driving structure 12 drives the photosensitive drum to rotate, and the second driving structure 13 drives the developing roller to rotate, the surface of the photosensitive drum is charged by the charging roller, the surface of the photosensitive drum is covered with negative charges, the photosensitive drum is exposed by the laser scanning unit, an electrostatic latent image is formed on the photosensitive drum, and the toner is uniformly distributed on the surface of the developing roller under the control of the powder outlet knife, and the toner on the developing roller is transferred to the photosensitive drum by the electric field force, at this time, the electrostatic latent image on the surface of the photosensitive drum becomes a visible toner image, and the toner image on the surface of the photosensitive drum is transferred to the paper by the electric field force, and then the image forming process is completed through fixing and discharging.

[0080] Referring to Figures 1 to 3 As shown, the utility model embodiment provides an image forming device, including device body 100, device body 100 includes drawer 101, and the drawer 101 is provided with fitting part 102, and the engaging part 14 of powder box 10 is clamped with fitting part 102.

[0081] Wherein, the powder box 10 in the embodiment and the structure of the powder box 10 provided by any one of the above embodiments are same, and can bring same or similar technical effects, which will not be repeated here, and the specific description can be referred to the description of the above embodiments.

[0082] The front-to-back direction of the device body 100 is the Y-axis direction, the left-to-right direction of the device body 100 is the X-axis direction, and the up-to-down direction of the device body 100 is the Z-axis direction, and the X-axis, the Y-axis and the Z-axis are perpendicular to each other.

[0083] Need to be explained, the coordinate system of the device body 100 is same with the coordinate system of the powder box 10.

[0084] In a possible implementation, the drawer 101 is provided with a plurality of matching portions 102, which are arranged at intervals along the length direction (i.e. the Y-axis direction) of the drawer 101.

[0085] The number of the matching portions 102 can be equal to the number of the powder boxes 10, i.e. one matching portion 102 corresponds to one powder box 10.

[0086] For example, the drawer 101 is provided with four matching portions 102, which correspond to the four powder boxes 10. When the four powder boxes 10 are installed on the drawer 101, the engaging portion 14 of each powder box 10 is clamped with one matching portion 102, so as to limit the shaking of each powder box 10 relative to the drawer 101.

[0087] In a possible implementation, the matching portions 102 are arranged on the top side of the drawer 101, i.e. the matching portions 102 are arranged on the +Z-axis side of the drawer 101.

[0088] The matching portions 102 can be integrally formed with the drawer 101.

[0089] It should be noted that, in other embodiments, the matching portions 102 can be detachably connected with the drawer 101. For example, the matching portions 102 can be clamped with the drawer 101.

[0090] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A toner cartridge (10) detachably mounted to a device body (100) of an image forming apparatus, the device body (100) including a drawer (101), the toner cartridge (10) being mounted in the drawer (101), characterized in that, The powder box (10) includes: The housing (11) includes an end cap (111) having a top surface first end (111a) and a bottom surface second end (111b) which are disposed opposite to each other in the height direction of the powder box (10). A first drive structure (12) is disposed on the end cap (111) and has a first rotation axis; The second drive structure (13) is disposed on the end cap (111). The second drive structure (13) has a second rotation axis. In the height direction of the powder box (10), the second rotation axis is away from the second end (111b) of the bottom surface of the powder box (10) relative to the first rotation axis. A connecting portion (14) is connected to the end cap (111). The connecting portion (14) has an engaging area for engaging with a mating portion (102) on the drawer (101). In the height direction of the powder box (10), the engaging area is closer to the second end (111b) of the bottom surface of the powder box (10) than the top side of the first drive structure (12) and the top side of the second drive structure (13).

2. The powder box (10) according to claim 1, characterized in that, The joint (14) is close to the first drive structure (12) relative to the second drive structure (13).

3. The powder box (10) according to claim 1, characterized in that, The joint (14) is detachably connected to the housing (11); or, the joint (14) and the housing (11) are integrally formed.

4. The powder box (10) according to claim 1, characterized in that, The joint (14) has a contact surface (141) for engaging with a mating part (102) on the drawer (101), the contact surface (141) being the engaging area. In the height direction of the powder box (10), the contact surface (141) is close to the second end (111b) of the bottom surface of the powder box (10) relative to the top side of the first drive structure (12) and the top side of the second drive structure (13), and the contact surface (141) is away from the second end (111b) of the bottom surface of the powder box (10) relative to the first rotation axis.

5. The powder box (10) according to claim 4, characterized in that, The joint (14) includes a first connecting segment (14a) and a second connecting segment (14b). The first connecting segment (14a) is connected to the end cap (111), and the second connecting segment (14b) is intersecting and connected to the first connecting segment (14a). The contact surface (141) is disposed on the second connecting segment (14b).

6. The powder box (10) according to claim 5, characterized in that, The second connecting segment (14b) includes a first inclined surface (142) and a first transition surface (143). The first transition surface (143) is connected to the contact surface (141) and the first inclined surface (142) respectively. In the height direction of the powder box (10), the first inclined surface (142) is closer to the second end (111b) of the bottom surface of the powder box (10) than the contact surface (141) and the first transition surface (143).

7. The powder box (10) according to any one of claims 1-6, characterized in that, The powder cartridge (10) also includes a photosensitive drum and a developing roller. The photosensitive drum and the developing roller are rotatably mounted on the housing (11). The photosensitive drum is connected to the first driving structure (12), and the developing roller is connected to the second driving structure (13).

8. An image forming apparatus, characterized in that, It includes a device body (100) and a powder box (10) as described in any one of claims 1-7; The main body (100) of the device includes a drawer (101), and a mating part (102) is provided on the drawer (101). The joint part (14) of the powder box (10) engages with the mating part (102).

9. The image forming apparatus according to claim 8, characterized in that, The drawer (101) is provided with a plurality of mating parts (102), and the plurality of mating parts (102) are spaced apart along the length direction of the drawer (101); The mating part (102) is disposed on the top side of the drawer (101), and the mating part (102) has a locking hole (1021) that engages with the contact surface (141) of the joining part (14).

10. The image forming apparatus according to claim 8, characterized in that, The mating part (102) is detachably connected to the drawer (101); or, the mating part (102) and the drawer (101) are integrally formed.

Images