Developing box and processing box

Abstract

The utility model relates to a developing box which is detachably arranged in imaging equipment provided with a contact pin, and the developing box comprises a shell used for accommodating carbon powder; a developing roller rotatably disposed in the housing and having a rotation axis extending in a left-right direction; the handle is connected with the shell and used for mounting and dismounting the developing box, the arrangement direction of the developing roller and the handle is the front-back direction, and meanwhile the direction intersecting with the left-right direction and the front-back direction is the up-down direction; the chip assembly comprises a supporting part which is fixedly arranged relative to the shell; an electric contact part which faces upwards, is supported by the supporting part, and is used for being in electric contact with the contact pin; the forced pushing assembly comprises a stress part, and the stress part is used for abutting against a component outside the developing box in the mounting and dismounting process of the developing box; and the elastic piece is used for forcibly pushing the stress piece towards the direction far away from the supporting part. According to the technical scheme, the stability of contact between the electric contact part of the chip and the contact pin can be improved.

Description

Technical Field

[0001] The utility model relates to the field of electronic photographic imaging, in particular to a developing box and a processing box which are detachably installed in an electronic photographic imaging device. Background Art

[0002] In the existing processing box / developing box, a developing roller carrying the developer generally supplies the developer to the photosensitive drum having an electrostatic latent image formed on the surface, so as to develop the electrostatic latent image. In general, the processing box / developing box is also provided with a chip for establishing a communication connection with an imaging device. When the processing box / developing box is installed in the imaging device, the chip makes electrical contact with the contact pin in the imaging device to form an electrical connection. In an existing developing box, relative to the installation direction of the developing box, the electrical contact portion of the chip for electrical contact with the contact pin is arranged to face upward, and the supporting portion for supporting the chip is arranged to be movable relative to the developing box housing. This design can reduce the influence of the vibration generated by the developing box during the development period on the electrical contact between the electrical contact portion and the contact pin. However, during the development period of the developing box, the movable supporting portion still has the risk of shaking relative to the developing box housing, thereby causing the contact between the electrical contact portion and the contact pin to fail. Utility Model Content

[0003] To this end, the utility model provides a developing box using the following technical solution to improve the stability of the contact between the electrical contact part of the chip and the contact pin. The specific solution is as follows:

[0004] A developing box is detachably mounted on an imaging device provided with a contact pin, and the developing box includes: a shell for accommodating carbon powder; a developing roller rotatably arranged in the shell and having a rotation axis extending in the left-right direction; a handle connected to the shell and used for realizing the installation and removal of the developing box, and the arrangement direction of the developing roller and the handle is the front-to-back direction, and the direction intersecting the left-to-right direction and the front-to-back direction is the up-and-down direction; a chip assembly includes: a supporting part fixedly arranged relative to the shell; an electrical contact part facing upward, supported by the supporting part, and used for making electrical contact with the contact pin; a pushing assembly includes: a force-bearing member, which is used to abut against a component outside the developing box during the installation and removal of the developing box; and an elastic member used to push the force-bearing member in a direction away from the supporting part.

[0005] In some embodiments, the developing box also includes a driving force receiving member and a first end cover, wherein the driving force receiving member is exposed through the first end cover and is used to receive driving force from the imaging device to drive the developing roller to rotate, and the supporting portion is fixedly connected to the first end cover or the shell.

[0006] In some embodiments, the developing box further includes a second guide surface, and the second guide surface is used to guide the supporting portion during the disassembly process of the developing box.

[0007] In some embodiments, the developing box further includes a first guide surface, and the first guide surface is used to guide the supporting portion during the installation process of the developing box.

[0008] In some embodiments, the support portion has a relief portion and a mounting portion for supporting at least the electrical contact portion, and along the up and down direction, the relief portion is formed as a groove that is recessed downward relative to at least a portion of the first guide surface and / or at least a portion of the second guide surface.

[0009] In some embodiments, at least a portion of the mounting portion is opposite to the avoiding portion along the left-right direction.

[0010] In some embodiments, the first guide surface and the second guide surface are configured as inclined surfaces or curved surfaces. When the first guide surface and the second guide surface are configured as inclined surfaces, the inclination angle thereof does not exceed 45 degrees.

[0011] In some embodiments, the imaging device further includes a first protecting portion and a second protecting portion, wherein the first protecting portion and the second protecting portion are spaced apart in the front-to-back direction, and a downwardly open contact pin cavity is formed therebetween, wherein the first protecting portion is located behind the second protecting portion, and the contact pin is disposed in the contact pin cavity; during the process of installing the developing cartridge toward the imaging device, the first protecting portion squeezes the first guide surface, forcing the elastic member to undergo elastic deformation, and the supporting portion and the shell move downward together, so that the supporting portion passes over the first protecting portion; during the process of removing the developing cartridge from the imaging device, the first protecting portion squeezes the second guide surface, forcing the elastic member to undergo elastic deformation again, and the supporting portion and the shell move downward together, so that the supporting portion passes over the first protecting portion.

[0012] In some embodiments, the first guide surface and the second guide surface are disposed on the support portion, and during the installation and removal of the developing cartridge, the support portion abuts against the first protection portion.

[0013] In some embodiments, the imaging device further includes an acting member, the developing box further includes an acted member for interacting with the acting member, and at least the second guide surface is disposed on the acted member.

[0014] In some embodiments, the developing box further comprises a forming body fixedly disposed relative to the housing, the forming body being used to abut against the first protrusion in the imaging device, and in the supporting portion and the forming body, the acted member at least comprises the forming body.

[0015] In some embodiments, the imaging device also includes a first protrusion and a second protrusion, and the developing box also includes a forming body and a protrusion fixedly arranged relative to the shell, the forming body is used to abut against the first protrusion, and the protrusion is used to abut against the second protrusion; the acted member includes the protrusion and the forming body, the first guide surface is arranged on one of the protrusion and the forming body, the second guide surface is arranged on the other of the protrusion and the forming body, and the acting member includes the first protrusion and the second protrusion.

[0016] The utility model also provides a processing box, which comprises a drum box and the developing box as described above, and the developing box can be installed to the drum box in a detachable manner.

[0017] In some embodiments, the force receiving member is configured to abut against an imaging device or a drum cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the developing box involved in the utility model.

[0019] Figure 2A It is an exploded schematic diagram of some components of the developing box involved in the utility model.

[0020] Figure 2B It is a side view of a drum box to which the developing box involved in the utility model is applicable.

[0021] Figure 3 It is a cross-sectional view of an imaging device to which the developing box of the utility model is applicable, cut along a direction perpendicular to the left-right direction.

[0022] Figure 4A This is a state diagram of the process box being installed toward the imaging device after the developer box and the drum box involved in the first embodiment of the utility model are combined with each other to form the process box.

[0023] Figure 4B This is a state diagram of the process box installed in a predetermined position of an imaging device after the developer box and the drum box involved in the first embodiment of the utility model are combined with each other to form a process box.

[0024] Figure 5 It is a side view of the developing box involved in the second embodiment of the utility model observed along the first direction.

[0025] Fig. 6A This is a state diagram of the processing box installed toward the imaging device after the developing box and the drum box involved in the second embodiment of the present invention are combined with each other to form the processing box.

[0026] Figure 6B This is a state diagram of the processing box installed in a predetermined position of an imaging device after the developing box and the drum box involved in the second embodiment of the present invention are combined with each other to form a processing box.

[0027] Figure 7 It is a side view of the developing box involved in the third embodiment of the utility model observed along the first direction.

[0028] Fig. 8A This is a state diagram of the processing box installed toward the imaging device after the developing box and the drum box involved in the third embodiment of the present invention are combined with each other to form the processing box.

[0029] Figure 8B This is a state diagram of the process box installed in a predetermined position of an imaging device after the developer box and the drum box involved in the third embodiment of the present invention are combined with each other to form a process box.

[0030] Fig. 9 It is a side view of the developing box involved in the fourth embodiment of the utility model observed along the first direction.

[0031] Fig. 10A This is a state diagram of the processing box installed toward the imaging device after the developing box and the drum box involved in the fourth embodiment of the present invention are combined with each other to form the processing box.

[0032] Fig. 10B This is a state diagram of the processing box installed in a predetermined position of an imaging device after the developing box and the drum box involved in the fourth embodiment of the present invention are combined with each other to form a processing box. DETAILED DESCRIPTION

[0033] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0034] Embodiment 1

[0035]

Processing box

[0036] like Figure 1 As shown, the processing box C includes a developer box 100 and a drum box 200 which are combined with each other, wherein the developer box 100 and the drum box 200 can be combined with each other to form a product, in which case, the developer box 100 and the drum box 200 will be installed together in a detachable manner to the imaging device; the developer box 100 and the drum box 200 can also be installed in the imaging device in a detachable manner as two products respectively, in which case, the developer box 100 can be firstly installed in a detachable manner to the drum box 200 outside the imaging device, and then the two can be installed together in a detachable manner to the imaging device, or the drum box 200 can be installed in the imaging device first, and then the developer box 100 can be installed, or the drum box 200 can be pre-set in the imaging device, and the developer box 100 can be directly installed in the imaging device in a detachable manner.

[0037] The developing box 100 includes a shell 101 for accommodating carbon powder and a developing roller 1 rotatably arranged in the shell 101, and the drum box 200 includes a drum frame 201 and a photosensitive drum 202 rotatably arranged in the drum frame 201. When the processing box C / developing box 100 is developed, the developing roller 1 rotates around the rotation axis L1, and the developing roller 1 transports the carbon powder carried on its surface toward the surface of the photosensitive drum 202 close to it, thereby developing the electrostatic latent image formed on the surface of the photosensitive drum 202.

[0038] Continue as Figure 1As shown, the developing box 100 also includes a handle 14, a driving force receiving member 2 and a powder discharge knife 6, wherein the handle 14 is connected to the shell 101, and the user can install and disassemble the developing box 100 by operating the handle 14; the driving force receiving member 2 is used to receive the driving force from the imaging device to drive the developing roller 1 to rotate; the powder discharge knife 6 is fixedly mounted on the shell 101, and the powder discharge knife 6 is also in contact with the outer surface of the developing roller 1, and is used to adjust the thickness of the carbon powder layer on the outer surface of the developing roller 1.

[0039] It should be understood that the handle 14 can be set as a protrusion connected to the shell 101, as a rib on the surface of the shell 101, or as a groove formed in the shell, as long as the user can install and disassemble the developer box 100 by operating the component.

[0040] To make the following description clearer, the direction in which the rotation axis L1 extends is defined as the first direction / left-right direction, the side on which the driving force receiving member 2 is provided is the driving side (left side) F, the side opposite to the driving side F is the non-driving side (right side) NF, the arrangement direction of the developing roller 1 and the handle 14 is the second direction / front-back direction, the first direction and the second direction intersect, preferably, the first direction and the second direction are perpendicular to each other, along the second direction, the developing roller 1 is located in front of the handle 14, and the developing box 100 can be installed forward along the second direction and disassembled / removed backward; at the same time, the direction intersecting the first direction and the second direction is the third direction / up and down direction, preferably, the first direction, the second direction and the third direction are perpendicular to each other; the orientation defined in the present utility model is applicable to the developing box 100 and the drum box 200.

[0041] Furthermore, the developing box 100 also includes a first end cover 11 and a second end cover 12. Along the first direction, the first end cover 11 and the second end cover 12 are respectively located on both sides of the shell 101, wherein the first end cover 11 is located on the driving side F, and the second end cover 12 is located on the non-driving side NF, and the driving force receiving member 2 is exposed through the first end cover 11. In some embodiments, the second end cover 12 can also be omitted.

[0042] Furthermore, the developing box 100 also includes a driving force transmission member 21 and a powder feeding roller 15. The driving force received by the driving force receiving member 2 can be transmitted to the developing roller 1 and the powder feeding roller 15 through the driving force transmission member 21. The powder feeding roller 15 is in contact with the developing roller 1, and the powder feeding roller 15 is used to supply the developing roller 1 with the toner stored in the shell 1.

[0043] Furthermore, the developing box 100 also includes a bracket assembly 16 connected to the shell 1. Along the first direction, the bracket assembly 16 is arranged on the non-driving side NF. When the developing box 100 is installed to the imaging device, the bracket assembly 16 is used to receive power from the imaging device to directly or indirectly supply at least to the developing roller 1.

[0044] Furthermore, the developing box 100 also includes a left limited member 100L and a right limited member 100R respectively arranged on the first end cover 11 and the bracket assembly 16, and the left limited member 100L and the right limited member 100R are respectively used to cooperate with the left limited member 200L and the right limited member 200R in the drum box 200, so that the developing box 100 can be stably positioned.

[0045] Furthermore, the developing box 100 also includes a chip assembly 4 and a forced pushing assembly 5, wherein the chip assembly 4 includes a supporting portion 41 and a chip 42, the chip 42 is supported by the supporting portion 41, the chip 42 includes a substrate 421 and an electrical contact portion 422, the plane where the electrical contact portion 422 is located is parallel to the second direction, and is used to electrically contact the contact pin 943 in the imaging device. In some embodiments, the electrical contact portion 422 is separately arranged from the substrate 421, but the electrical contact portion 422 is still supported by the supporting portion 41, and the substrate 421 can be arranged at other positions according to design requirements; in some embodiments, the electrical contact portion 422 is arranged on the substrate 421, at this time, the substrate 421 will be supported by the supporting portion 41, in this embodiment, the structure of the chip assembly 4 can be simplified, no matter how the structure of the chip 42 is arranged, at least the electrical contact portion 422 is supported by the supporting portion 41, and the technical solutions involved in the utility model can be applied, and the following will be explained by taking the electrical contact portion 422 arranged on the substrate 421 as an example.

[0046] The support portion 41 is configured to be fixedly connected to the first end cover 11 and / or the shell 1. Since the first end cover 11 is fixedly connected to the shell 1, even if the support portion 41 is fixedly connected to the first end cover 11, the support portion 41 is still fixedly arranged relative to the shell 1, and the chip 42 / electrical contact portion 422 will be able to move together with the shell 1.

[0047] Along the front-to-back direction, the support portion 41 has a mounting portion 414, a first guide surface 411 and a second guide surface 412, wherein the mounting portion 414 is at least used to support the electrical contact portion 422, the first guide surface 411 is used to guide the support portion 41 during the installation of the developing box / processing box toward the imaging device, and the second guide surface 412 is used to guide the support portion 41 during the removal of the developing box / processing box from the imaging device.

[0048] In some embodiments, the first guide surface 411 and the second guide surface 412 are spaced apart from each other, and along the direction from back to front, the first guide surface 411 is located downstream of the second guide surface 412 , and the first guide surface 411 and the second guide surface 412 are respectively located on both sides of the mounting portion 414 .

[0049] In some embodiments, the first guide surface 411 can also be omitted. In this case, the support portion 41 will only be provided with the second guide surface 412. During the installation of the developer box / processing box toward the imaging device, the user can directly press the support portion 41 or press the support portion 41 through a tool, which can also achieve the smooth installation of the developer box / processing box.

[0050] The electrical contact portion 422 of this embodiment faces upward, and correspondingly, the electrical contact portion 943 in the imaging device faces downward. Figure 2A As shown, the forced pushing assembly 5 includes a force-bearing member 51 and an elastic member 52. The elastic member 52 is used to force the force-bearing member 51 in a direction away from the supporting portion 41. During the installation and removal of the developing box 100 / processing box, the force-bearing member 51 is used to abut against the guide rail 93 in the imaging device.

[0051] In some embodiments, the elastic member 52 is a compression spring, sponge, rubber, etc. located between the support portion 41 and the force-bearing member 51 .

[0052] In some embodiments, the elastic member 52 may also be a tension spring connected to the force-bearing member 51 .

[0053]

Drum box

[0054] like Figure 2B As shown, the drum box 200 includes a drum frame 201 and a photosensitive drum 202 rotatably arranged in the drum frame 201, and a box accommodating cavity 203 for accommodating the developing box 100 and a locking member located in the box accommodating cavity 203 are formed in the drum box 200, and the locking member is used to keep the developing box 100 in the box accommodating cavity 203 to prevent the developing box 100 from escaping from the box accommodating cavity 203.

[0055] Furthermore, the drum box 200 also includes a limiting member 200L / 200R arranged in the drum frame 201, wherein the left limiting member 100L is used to cooperate with the limiting member 200L, and the right limiting member 100R is used to cooperate with the limiting member 200R, so that the developing box 100 can be stably positioned in the box accommodating cavity 203.

[0056]

Imaging equipment

[0057] like Figure 3As shown, the imaging device 9 includes a main component 91, a power output member 92, a guide rail 93 and a contact pin assembly 94, the main component 91 is formed with a device cavity 90 for accommodating a developing box 100 / processing box, the power output member 92, the guide rail 93 and the contact pin assembly 94 are all located in the device cavity 90, wherein the power output member 92 can be set as one or as two separated from each other, when the power output member 92 is set as two, the voltage output by one of the power output members matches the developing roller 1, and the power output member can be called a developing electrode, and the voltage output by the other power output member matches the powder feeding roller 15, and the power output member can be called a powder feeding electrode.

[0058] In the direction from back to front, the guide rail 93 has a first surface 931, a second surface 932 and a third surface 933 arranged in sequence, and the second surface 932 is inclined relative to the first surface 931 / the third surface 933. Therefore, the first surface 931 and the third surface 933 are staggered. Specifically, in the up and down direction, the third surface 933 is closer to the contact pin assembly 94 than the first surface 931, or in other words, the third surface 933 is higher than the first surface 931.

[0059] The stylus assembly 94 includes a first protecting portion 941, a second protecting portion 942 and a stylus 943. The first protecting portion 941 and the second protecting portion 942 are spaced apart in the front-to-back direction to form a stylus cavity 940 open downwardly therebetween. The first protecting portion 941 is located behind the second protecting portion 942, and the stylus 943 is disposed in the stylus cavity 940.

[0060] [Installation and removal of the developer cartridge / processing cartridge]

[0061] As described above, there are various combinations of the developer box 100 and the drum box 200. The following description will take the example that the developer box 100 and the drum box 200 are first combined with each other outside the imaging device 9 to form a processing box, and then the processing box is installed to the imaging device in a detachable manner.

[0062] like Figure 4A and Figure 4BAs shown, the processing box is installed in the forward direction toward the equipment cavity 90, and the force-bearing member 51 first abuts against the first surface 931. In the up and down direction, the first protecting portion 941 partially overlaps with the supporting portion 41. When the processing box moves forward until the supporting portion 41 abuts against the first protecting portion 941, as the processing box is further installed, the first protecting portion 941 squeezes the first guide surface 411, thereby forcing the elastic member 52 to undergo elastic deformation. As described above, since the supporting portion 41 is fixedly arranged relative to the shell 101, when the supporting portion 41 is pressed downward by the first protecting portion 941, the shell 101 also moves downward together, and finally the supporting portion 41 passes over the first protecting portion 941, and the chip 42 / electrical contact portion 422 enters the contact pin cavity 940. Under the action of the elastic force released by the elastic member 52, the supporting portion 41 and the shell 101 move upward together, and the electrical contact portion 422 makes electrical contact with the contact pin 943. At this time, the force-bearing member 51 abuts against the third surface 933.

[0063] Since the third surface 933 is closer to the contact pin assembly 94 than the first surface 931, the elastic member 52 will still remain in an elastically deformed state, that is, the support portion 41 will still remain pushed upward by the elastic member 52. Finally, the electrical contact portion 422 and the contact pin 943 can maintain stable electrical contact.

[0064] Furthermore, during the installation of the developer box 100 / processing box, while the force-bearing member 51 is in contact with the second surface 942, the elastic deformation of the elastic member 52 gradually increases. After the support portion 41 passes over the first protective portion 941, the elastic member 52 is able to release a greater elastic force, so that the electrical contact portion 422 can maintain contact with the contact pin 943 more stably.

[0065] When the developing box 100 / processing box needs to be taken out from the device cavity 90, the user pulls the developing box 100 / processing box backwards, and the force-bearing member 51 gradually changes from abutting against the third surface 933 to abutting against the second surface 932. At the same time, the second guide surface 412 is squeezed by the first protecting portion 941, and the elastic member 52 is elastically deformed again. The support portion 41 and the shell 101 move downward together until the support portion 41 passes over the first protecting portion 941. Then, under the action of the elastic force released by the elastic member 52, the support portion 41 and the shell 101 move upward together again, and the force-bearing member 51 moves downward and abuts against the first surface 941, so that the processing box can be smoothly taken out.

[0066] According to the movement process of the developing box 100 / processing box described above, the first protecting portion 941 can be regarded as an active member located outside the developing box 100, and the supporting portion 41 can be regarded as a passive member located in the developing box 100, and at least the second guide surface 412 is arranged on the supporting portion 41. Through the interaction between the active member and the passive member, during the installation of the developing box 100 / processing box, the electrical contact portion 422 can move downward with the shell 101, so that the electrical contact portion 422 passes over the first protecting portion 941, and the electrical contact portion 422 is electrically contacted with the contact pin 943. During the disassembly of the developing box 100 / processing box, the electrical contact portion 422 can move downward again with the shell 101, so that the electrical contact portion 422 is out of electrical contact with the contact pin 943, and the electrical contact portion 422 can pass over the first protecting portion 941 again, so that the developing box 100 / processing box can be smoothly installed and disassembled. In the utility model, the first guide surface 411 and the second guide surface 412 can be set as either an inclined surface or a curved surface, as long as during the installation process of the developing box 100 / processing box toward the imaging device or the removal process from the imaging device, the first guide surface 411 and the second guide surface 412 are respectively in contact with the first protective portion 941, so that the developing box 100 moves downward as a whole; wherein, when the first guide surface 411 and the second guide surface 412 are set as inclined surfaces, it is preferable that the inclination angle thereof does not exceed 45 degrees. When the inclination angle is too large, the installation process and the removal process of the developing box 100 / processing box may become unsmooth. Specifically, the inclination angle of the first guide surface 411 relative to the plane parallel to the plane where the electrical contact portion 422 is located does not exceed 45 degrees, and the inclination angle of the second guide surface 412 relative to the plane parallel to the plane where the electrical contact portion 422 is located does not exceed 45 degrees.

[0067] In some embodiments, the support portion 41 is further provided with an avoidance portion 413, and along the up and down directions, the avoidance portion 413 is formed as a groove that is downwardly recessed relative to at least a portion of the first guide surface 411 and / or at least a portion of the second guide surface 412, so that the developing box 100 / processing box can smoothly reach the predetermined installation position, and there will be no interference between the support portion 41 and components in the imaging device (such as components forming the contact pin cavity 940).

[0068] In some embodiments, along the left-right direction, at least a portion of the mounting portion 414 is opposite to the avoiding portion 413 , and this design can reduce the size of the supporting portion 41 in the direction intersecting with the first direction.

[0069] As described above, since the developer box 100 cooperates with the left limiting member 200L and the right limiting member 200R in the drum box 200 through the left limiting member 100L and the right limiting member 100R respectively, and the supporting portion 41 for supporting the chip 42 / electrical contact portion 422 is fixedly arranged relative to the shell 101, the supporting portion 41 is connected to the pushing component 5 which is movable relative to the shell 101. During the installation and disassembly of the developer box 100 / processing box, when the elastic member 52 undergoes elastic deformation or releases its elastic force, the developer box 100 will rotate around the left positioning member 100L and the right positioning member 100R. In this way, during the development process of the developer box 100 / processing box, compared with the possible shaking of the supporting portion 41 relative to the shell 101, the shaking amplitude of the shell 101 can be greatly reduced, and under the action of the pushing component 5, the stable electrical contact between the electric contact portion 422 and the contact pin 943 can be maintained.

[0070]

Standard assembly

[0071] As described above, the bracket assembly 16 is used to receive power from the imaging device to directly or indirectly supply at least to the developing roller 1. The bracket assembly 16 can be a single component or a combination of multiple components. Furthermore, in addition to being disposed on the developing box 100, the bracket assembly 16 can also be disposed on the drum box 200, as long as the bracket assembly 16 can supply power from the imaging device to the developing roller 1, the powder feeding roller 15 and the powder discharge knife 6.

[0072] Continue as Figure 2A As shown, the developing roller 1 includes a developing layer 1a and a developing roller shaft 1b, wherein the developing layer 1a is located radially outside the developing roller shaft 1b, and the developing layer 1a is used to carry carbon powder; the powder feeding roller 15 includes a powder feeding layer 15a and a powder feeding roller shaft 15b, wherein the powder feeding layer 15a is located radially outside the powder feeding roller shaft 15b, and the powder feeding layer 15a is used to transport carbon powder toward the developing roller 1, and generally, the powder feeding roller shaft 15b is made of conductive material.

[0073] When the developing roller shaft 1b is made of a conductive material, electrical conduction is formed between the developing roller shaft 1b and the developing layer 1a.

[0074] In some embodiments, the bracket assembly 16 can be configured as only a first end piece 161 made of a conductive material, at least the developing roller shaft 1b is supported by the first end piece 161, and the first end piece 161 receives power by electrically contacting the power output piece 92 (developing electrode or powder feeding electrode) in the imaging device, and supplies the received power to the developing roller shaft 1b and the powder feeding roller shaft 15b at the same time, or supplies the received power to the developing roller shaft 1b, the powder feeding roller shaft 15b and the powder outlet knife 6 at the same time.

[0075] In some embodiments, when the first end piece 161 is made of a non-conductive material, the bracket assembly 16 may also include a second end piece 162 made of a conductive material, and the second end piece 162 is arranged on the shell 101 or the first end piece 161, and is used to electrically contact the power output piece 92 (at least one of the developing electrode and the powder feeding electrode) to receive power and supply power to the developing roller shaft 1b and / or the powder feeding roller shaft 15b.

[0076] When no electrical conduction is formed between the developing roller shaft 1b and the developing layer 1a.

[0077] In some embodiments, the bracket assembly 16 can be configured as only a first end piece 161 made of a conductive material, at least the developing roller shaft 1b is supported by the first end piece 161, the first end piece 161 is in electrical contact with the power output piece 92 (at least one of the developing electrode and the powder feeding electrode) to receive power, and supplies power to the powder discharge knife 6, and then the powder discharge knife 6 supplies power to the developing layer 1b, or the first end piece 161 supplies power to the powder feeding roller 15 and the powder discharge knife 6 at the same time, and then the powder feeding roller 15 and the powder discharge knife 6 supply power to the developing layer 1b.

[0078] In some embodiments, when the first end piece 161 is made of a non-conductive material, the bracket assembly 16 may also include a second end piece 162 made of a conductive material, and the second end piece 162 is arranged on the shell 101 or the first end piece 161, and is used to electrically contact the power output piece 92 (at least one of the developing electrode and the powder feeding electrode) to receive power, and supply power to the powder discharge knife 6, and then the powder discharge knife 6 supplies power to the developing layer 1b, or the first end piece 161 supplies power to the powder feeding roller 15 and the powder discharge knife 6 at the same time, and then the powder feeding roller 15 and the powder discharge knife 6 supply power to the developing layer 1b.

[0079] Embodiment 2

[0080] Different from the first embodiment, the force bearing member 51 in this embodiment no longer abuts against the guide rail 93, but abuts against the drum box 200. Figure 5 As shown, one end of the elastic member 52 contacts the force-bearing member 51 , and the other end contacts the first end cover 11 or the housing 101 . Under the elastic force of the elastic member 52 , the force-bearing member 51 is pushed in a direction away from the support portion 41 .

[0081] like Fig. 6AAs shown, during the forward installation process of the developing box 100 / processing box, when the first guide surface 411 abuts against the first protecting portion 941, the shell 101 and the support portion 41 move downward together, and since the force-bearing member 51 abuts against the bottom plate 204 of the drum frame 201, the elastic member 52 is elastically deformed, and the support portion 41 is able to pass over the first protecting portion 941 and enter the contact pin cavity 940. Subsequently, the elastic member 52 releases the elastic force, and the support portion 41 and the shell 101 move upward together. Finally, the electrical contact portion 422 achieves stable electrical contact with the contact pin 943.

[0082] like Figure 6B As shown, during the backward disassembly of the developer box 100 / processing box, when the second guide surface 412 abuts against the first protecting portion 941 again, the shell 101 and the support portion 41 move downward together again, the electrical contact portion 422 is disconnected from the contact pin 943, the elastic member 52 is elastically deformed again, and the support portion 41 can pass over the first protecting portion 941 again. Subsequently, the elastic member 52 releases the elastic force, and the support portion 41 and the shell 101 move upward together again and reset.

[0083] Embodiment 3

[0084] like Figure 7 As shown, different from the above-mentioned embodiment, the first guide surface 411 and the second guide surface 412 in this embodiment are both arranged on the forming body 17. At this time, the acted member is the forming body 17, and the acting member is the first protrusion 95 (to be described below) for abutting against the forming body 17.

[0085] The forming body 17 can be arranged on any component fixed relative to the shell 101, for example, the forming body 17 is directly arranged on the shell 101, or the forming body 17 is arranged on the first end cover 11, or the forming body 17 is arranged on the intermediate component located between the first end cover 11 and the shell 101; accordingly, the supporting portion 41 can also be arranged on any component fixed relative to the shell 101; accordingly, the component for abutting against the first guide surface 411 or the second guide surface 412 can still be the first protecting portion 941, or can also be other components in the imaging device.

[0086] The forced push assembly 5 in this embodiment can adopt the structure of the first embodiment or the structure of the second embodiment, which is not limited here. Fig. 8A and Figure 8B The structure of the forced pushing assembly 5 described in the second embodiment is shown.

[0087] like Fig. 8AAs shown, the component for abutting against the first guide surface 411 is a first protrusion 95 (the active part in this embodiment) arranged on the main component 91. During the forward installation process of the developing box 100 / processing box, through the abutment between the first guide surface 411 and the first protrusion 95, the support part 41 and the shell 101 move downward together, the elastic member 52 is elastically deformed, and the support part 41 can pass over the first protective part 941 and enter the contact pin cavity 940. The elastic member 52 releases the elastic force, thereby, the electrical contact part 422 and the contact pin 943 can form a stable electrical contact.

[0088] like Figure 8B As shown, during the backward disassembly process of the developer box 100 / processing box, the support part 41 and the shell 101 move downward together again through the abutment between the second guide surface 412 and the first protrusion 95, the elastic member 52 is elastically deformed again, the electrical contact part 422 is disengaged from the contact pin 943, and the support part 41 is able to pass over the first protective part 941, and then the elastic member 52 releases the elastic force, and the support part 41 and the shell 101 move upward together again and reset.

[0089] It can be seen that no matter it is the installation process of the developing box 100 / processing box or the disassembly process of the developing box 100 / processing box, the supporting portion 41 in this embodiment will not abut against the first protecting portion 941, which is beneficial to prevent the supporting portion 41 from being worn, and is also beneficial to prevent the electrical contact portion 422 supported by the supporting portion 41 from contacting with the first protecting portion 941 and being worn, or causing the electrical contact portion 422 to be displaced during the abutment between the supporting portion 41 and the first protecting portion 941.

[0090] As a variation of this embodiment, the first guide surface 411 and the second guide surface 412 can also be respectively arranged on the forming body 17 and the supporting portion 41. In this case, along the front-to-back direction, the first guide surface 411 is located in front of the supporting portion 41, and the first protrusion 95 is located in front of the first protecting portion 941. The forming body 17 is used to abut against the first protrusion 95, and the supporting portion 41 is used to abut against the first protecting portion 941. In this variation, the active member includes the first protrusion 95 and the first protecting portion 941, and the acted member includes the forming body 17 and the supporting portion 41.

[0091] As a variation of this embodiment, the first guide surface 411 and the second guide surface 412 can also be respectively arranged on the support portion 41 and the forming body 17. In this case, along the front-to-back direction, the first guide surface 411 is located behind the support portion 41, and the first protrusion 95 is also located behind the first protecting portion 941. In other words, there is no strict front-to-back position requirement for the first guide surface 411 and the second guide surface 412.

[0092] Embodiment 4

[0093] Different from the above-mentioned embodiment, the first guide surface 411 and the second guide surface 412 in this embodiment are respectively arranged on two parts different from the support part 41, such as Fig. 9 As shown, the first guide surface 411 is arranged on the protrusion 18, and the second guide surface 412 is arranged on the forming body 17. The protrusion 18 and the forming body 17 are separated from each other, and the protrusion 18 and the forming body 17 are fixed relative to the shell 101; the protrusion 18 is used to abut with the second protrusion 96 located in the main component 91, and the forming body 17 is used to abut with the first protrusion 95 located in the main component 91.

[0094] like Fig. 10A As shown, during the forward installation process of the developing box 100 / processing box, the support portion 41 and the shell 101 move downward together through the abutment between the first guide surface 411 and the second protrusion 96, the elastic member 52 is elastically deformed, and the support portion 41 can pass over the first protective portion 941 and enter the contact pin cavity 940, and the elastic member 52 releases the elastic force, thereby, the electrical contact portion 422 and the contact pin 943 can form a stable electrical contact.

[0095] like Fig. 10B As shown, during the backward disassembly process of the developer box 100 / processing box, the support part 41 and the shell 101 move downward together again through the abutment between the second guide surface 412 and the first protrusion 95, the elastic member 52 is elastically deformed again, the electrical contact part 422 is disengaged from the contact pin 943, and the support part 41 is able to pass over the first protective part 941, and then the elastic member 52 releases the elastic force, and the support part 41 and the shell 101 move upward together again and reset.

[0096] In this embodiment, there is no strict front and rear position requirement for the first guide surface 411 and the second guide surface 412. The first guide surface 411 is arranged on one of the protrusion 18 and the forming body 17, and the second guide surface 412 is arranged on the other of the protrusion 18 and the forming body 17. Therefore, the acted part includes the protrusion 18 and the forming body 17, and the acting part includes the first protrusion 95 and the second protrusion 96. Through such a design, it is not only beneficial to reduce the wear of the protrusion 18 and the forming body 17, but also beneficial to reduce the wear of the first protrusion 95 and the second protrusion 96.

Claims

1. A developing cartridge, detachably mounted on an imaging device provided with a stylus, characterized in that: The developer box includes: A housing for containing carbon powder; A developing roller is rotatably disposed in the housing and has a rotation axis extending in the left-right direction; A handle connected to the housing is used to install and remove the developing cartridge, the developing roller and the handle are arranged in a front-to-back direction, and a direction intersecting the left-right direction and the front-to-back direction is an up-down direction; Chip components, including: A support portion, fixedly arranged relative to the housing; An electrical contact portion, facing upward, supported by the support portion, and used for making electrical contact with the contact pin; Forced push components, including: A force-bearing member, which is used to abut against a component outside the developing box during installation and removal of the developing box; The elastic member is used to push the force-bearing member in a direction away from the supporting portion.

2. The developing cartridge according to claim 1, characterized in that: The developing box also includes a driving force receiving member and a first end cover, wherein the driving force receiving member is exposed through the first end cover and is used to receive driving force from the imaging device to drive the developing roller to rotate, and the supporting portion is fixedly connected to the first end cover or the shell.

3. The developing cartridge according to claim 2, characterized in that: The developing box further includes a second guiding surface, and the second guiding surface is used to guide the supporting portion during the disassembly process of the developing box.

4. The developing cartridge according to claim 3, characterized in that: The developing box further includes a first guide surface, and the first guide surface is used to guide the supporting portion during the installation process of the developing box.

5. The developing cartridge according to claim 4, characterized in that: The support portion has an escape portion and a mounting portion at least for supporting the electrical contact portion. In the up-down direction, the escape portion is formed as a groove that is recessed downward relative to at least a portion of the first guide surface and / or at least a portion of the second guide surface.

6. The developing cartridge according to claim 5, characterized in that: At least a portion of the mounting portion is opposed to the escape portion in the left-right direction.

7. The developing cartridge according to claim 4, characterized in that: The first guide surface and the second guide surface are configured as inclined surfaces or curved surfaces. When the first guide surface and the second guide surface are configured as inclined surfaces, the inclination angle thereof does not exceed 45 degrees.

8. The developing cartridge according to claim 4, characterized in that: The imaging device further includes a first protection portion and a second protection portion, the first protection portion and the second protection portion are spaced apart in the front-to-back direction, a stylus cavity open downward is formed therebetween, the first protection portion is located behind the second protection portion, and the stylus is disposed in the stylus cavity; When the developing cartridge is installed toward the imaging device, the first protection portion presses the first guide surface, forcing the elastic member to undergo elastic deformation, and the support portion and the housing move downward together, so that the support portion passes over the first protection portion; When the developing box is taken out of the imaging device, the first protecting portion presses the second guiding surface, forcing the elastic member to deform elastically again, and the supporting portion and the shell move downward together, so that the supporting portion passes over the first protecting portion.

9. The developing cartridge according to claim 8, characterized in that: The first guide surface and the second guide surface are provided on the support portion, and during the installation and removal of the developing cartridge, the support portion abuts against the first protection portion.

10. The developing cartridge according to any one of claims 3 to 8, characterized in that: The imaging device further comprises an acting member, and the developing box further comprises an acted member for interacting with the acting member, and at least the second guide surface is arranged on the acted member.

11. The developing cartridge according to claim 10, characterized in that: The developing box also includes a forming body fixedly arranged relative to the shell, and the forming body is used to abut against the first protrusion in the image forming device. Among the supporting part and the forming body, the acted member at least includes the forming body.

12. The developing cartridge according to claim 10, characterized in that: The imaging device further includes a first protrusion and a second protrusion, and the developing box further includes a forming body and a convex block fixedly arranged relative to the housing, wherein the forming body is used to abut against the first protrusion, and the convex block is used to abut against the second protrusion; The acted member includes a convex block and a forming body, the first guide surface is arranged on one of the convex block and the forming body, the second guide surface is arranged on the other of the convex block and the forming body, and the acted member includes a first protrusion and a second protrusion.

13. A process cartridge, characterized in that The process cartridge comprises a drum cartridge and a developing cartridge as claimed in any one of claims 1 to 12, wherein the developing cartridge can be detachably mounted to the drum cartridge.

14. The process cartridge according to claim 13, wherein: The force-bearing member is used for abutting against the imaging device or the drum box.

Images