Chip assembly, developing box and processing box

Abstract

The utility model relates to a chip assembly and a developing box and a processing box with the chip assembly, the chip assembly is used for being matched with the developing box which is detachably arranged on imaging equipment provided with a contact pin and an accommodating body, and the chip assembly comprises a chip and a chip rack; the chip comprises an electric contact part and a storage part which are electrically connected with each other, and parameter information of the developing box is stored in the storage part; the chip rack comprises a front part and a rear part which are oppositely arranged, and at least the electric contact part is supported by the front part; the accommodating body comprises a front side plate and a rear side plate which are oppositely arranged, the contact pin and the front side plate are arranged on the same side, the rear side plate is provided with a rear surface facing the front side plate, and an accommodating cavity for accommodating the chip rack is formed between the front side plate and the rear side plate; when the developing box assembly is installed on the imaging equipment, the contact pins make contact with the electric contact parts, the chip frame is contained in the containing cavity, and the structure can enable the developing box assembly to reduce interference with the imaging equipment.

Description

[0001] The utility model claims the priority of the prior application with the application number 202322994581.2, the application date of November 6, 2023, and the invention name of "Chip Assembly, Developing Box Assembly and Process Box", the prior application with the application number 202420246289.4, the application date of January 31, 2024, and the invention name of "Chip Assembly and Developing Box", the prior application with the application number 202420396032.7, the application date of February 29, 2024, and the invention name of "Chip Assembly and Imaging Material Box", the prior application with the application number 202420467580.4, the application date of March 11, 2024, and the invention name of "Chip Assembly and Imaging Material Box", and all the contents of the prior applications are cross-referenced in the present application. TECHNICAL FIELD

[0002] The utility model relates to the field of electrophotographic imaging, in particular to a developing box and a process box which can be detachably installed in an electrophotographic imaging device. BACKGROUND

[0003] The developing box is a container which can be detachably installed in an imaging device, contains a developer therein, and is provided with a developing roller, a driving force receiving member and a chip. The developing roller is used to carry the developer and deliver the developer towards a photosensitive drum outside the developing box. The driving force receiving member is used to receive a driving force from the imaging device to drive the developing roller to rotate. The chip is used to establish a communication connection with the imaging device so that various parameter information of the developing box is acquired by the imaging device. The chip is supported by a chip holder provided in the developing box. Correspondingly, the imaging device is provided with a containing body for containing the chip holder.

[0004] When the imaging device, the developing roller and the photosensitive drum are close to each other. When the imaging device does not need to develop, in order to prevent the developing roller from deforming or the photosensitive drum from being contaminated, the imaging device directly or indirectly applies a separating force to the developing box, so that the developing box moves relative to the photosensitive drum, and then the developing roller and the photosensitive drum are separated from each other. When the imaging device needs to develop again, the separating force is removed, the developing box moves relative to the photosensitive drum again, and the developing roller and the photosensitive drum are close to each other again.

[0005] In the existing developing box, the chip holder is arranged to be just contained by the containing body, which causes the chip holder to easily interfere with the containing body during the installation and removal of the developing box, or during the movement of the developing box relative to the photosensitive drum to make the developing roller and the photosensitive drum close to or separate from each other. UTILITY MODEL CONTENTS

[0006] Therefore, the chip assembly is provided, which adopts the following technical scheme, so that the developing box is reduced or no longer interferes in at least one of the following processes: the process of installation and removal, and the process of moving relative to the photosensitive drum to make the developing roller and the photosensitive drum close to each other or separate from each other, and the specific scheme is as follows:

[0007] The chip assembly is used for cooperating with the developing box which is detachably installed in the imaging device provided with the contact pin and the containing body, and the chip assembly comprises a chip and a chip holder; the chip comprises an electrical contact part and a storage part which are electrically connected to each other, and the storage part stores parameter information of the developing box; the chip holder comprises a front part and a rear part which are oppositely arranged, and at least the electrical contact part is supported by the front part; the containing body comprises a front side plate and a rear side plate which are oppositely arranged, the contact pin is arranged on the same side of the front side plate, the rear side plate has a rear surface facing the front side plate, and the front side plate and the rear side plate form a containing cavity for containing the chip holder; when the chip assembly is installed to the imaging device, the contact pin is in contact with the electrical contact part, and at least a part of the chip holder is contained in the containing cavity.

[0008] The chip further comprises a substrate and a positioning part arranged on the substrate, the electrical contact part and the storage part are arranged on opposite sides of the substrate, and the chip holder is provided with a positioning part for cooperating with the positioning part.

[0009] In some embodiments, the chip holder further comprises a middle part and a hollow part arranged on the middle part, and the middle part is used for connecting the front part and the rear part.

[0010] The imaging device is further provided with an installation port for allowing the developing box to be installed and a door cover for covering the installation port, and the chip assembly further comprises an extension part connected with the chip holder, and the extension part is used for abutting against the door cover.

[0011] In some embodiments, the chip holder further comprises a chip mounting part for mounting the chip, and the chip mounting part is provided with a first fixing part, a second fixing part, a third fixing part and a locking part; the first fixing part and the second fixing part are oppositely arranged and are used for preventing the chip from moving in the arrangement direction of the first fixing part and the second fixing part; the third fixing part and the locking part are oppositely arranged, the third fixing part is used for preventing the chip from moving in the direction pointed by the locking part to the third fixing part, the locking part is used for preventing the chip from moving in the direction pointed by the third fixing part to the locking part, and the locking part is used for locking the chip.

[0012] In some embodiments, the chip is provided with a foolproof part for preventing the chip from being installed incorrectly, and the chip holder further comprises a second avoiding part for matching with the foolproof part, the second avoiding part is located between the first protrusion and the second protrusion provided on the chip mounting part, and the height of the second protrusion is lower than the height of the first protrusion.

[0013] The utility model provides a developing box, including developing box main part and the chip subassembly as described above, the chip subassembly is independent of developing box main part, the developing box main part includes the casing and rotatable developing roller in casing, the developing roller can rotate around the rotation axis parallel with longitudinal direction, along the first direction, developing box has opposite both ends, the developing box main part has the intermediate position between the both ends, when the chip subassembly is located in the intermediate position, developing box main part is provided with the engagement assembly still, the engagement assembly is used for making the chip subassembly is arranged on developing box main part.

[0014] The utility model provides a developing box, the developing box includes developing box main part and the chip subassembly as described above, the developing box main part includes the casing and rotatable developing roller in casing, the developing roller can rotate around the rotation axis parallel with longitudinal direction, the chip subassembly is independent of developing box main part, at least in the process that chip subassembly installs to the image forming apparatus, chip subassembly is movable relative to developing box main part.

[0015] In some embodiments, the chip holder comprises a first component part and a second component part, the first component part is provided with a receiving part, and the second component part is provided with a clamping part for clamping a clamped part in the image forming apparatus; the receiving part is used for accommodating a matching part provided in the developing box, and when the developing box main body is detached from the image forming apparatus, the chip subassembly is driven by the matching part and taken out together with the developing box main body.

[0016] In some embodiments, the developing box main body comprises an end cover fixedly connected with the casing, and the matching part comprises a first matching part and a second matching part provided on the end cover; when the chip subassembly is installed in place, neither the first matching part nor the second matching part contacts the chip subassembly, or when the chip subassembly is installed in place, both the first matching part and the second matching part contact the chip subassembly; during the process of detaching the developing box main body from the image forming apparatus, both the first matching part and the second matching part contact the chip subassembly and take the chip subassembly out to the outside of the image forming apparatus.

[0017] In some embodiments, during the process of detaching the developing box main body, the first matching part contacts the receiving part, and the second matching part is used for preventing the chip subassembly from falling during the process of being taken out.

[0018] In some embodiments, the second component part is provided with an engaging portion having an engaging surface, a first step surface and a second step surface; the engaging surface is used to abut against the engaged surface of the engaged portion provided on the lower wall of the image forming device; in the longitudinal direction, the first step surface is closer to the developing cartridge main body than the second step surface, and the first step surface and the second step surface are connected by the engaging surface.

[0019] In some embodiments, the chip assembly is further provided with a first identification portion matched with the developing cartridge main body, and the image forming device is provided with a second identification portion aligned with the first identification portion, and the first identification portion and the second identification portion are provided as the same letter.

[0020] In some embodiments, the door cover of the image forming device is provided with a protrusion, when the chip assembly is not installed in place, the protrusion contacts the side where the first identification portion is located during the closing of the door cover, and as the door cover is gradually closed, the chip assembly is pushed by the door cover to be installed in place.

[0021] The utility model provides a kind of processing box, including drum box and the developing cartridge as described above, the drum box includes second box body and photosensitive drum, when developing cartridge is installed, developing roller and photosensitive drum contact;The drum box further includes third cooperation piece being provided on second box body, when chip assembly is installed in place, third cooperation piece is combined with chip assembly to make chip assembly be positioned, during the disassembly of developing cartridge main body, third cooperation piece contacts with chip assembly, prevent chip assembly from falling during being taken out. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the perspective view of the developing cartridge assembly and the drum box after being separated from each other, which is related to the embodiment one of the utility model.

[0023] Figure 2 It is the exploded view of the developing cartridge assembly, in which chip assembly and developing cartridge shell are separated, which is related to the embodiment one of the utility model.

[0024] Figure 3 It is the sectional view of the developing cartridge assembly after being installed to image forming device, along Figure 1 AA direction of the middle, from left to right view of the sectional view.

[0025] Figure 4 It is the perspective view of the second elastic member and chip rack after being separated, which is related to the developing cartridge assembly of the embodiment two of the utility model.

[0026] Figure 5 It is the sectional view of the developing cartridge assembly after being installed to image forming device, along Figure 1 AA direction of the middle, from left to right view of the sectional view.

[0027] Figure 6 is the state diagram of the developing box assembly of the embodiment three of the utility model is installed to the imaging equipment.

[0028] Figure 7 is the state diagram of the developing box assembly of the embodiment three of the utility model is installed to the imaging equipment, along Figure 1 the AA direction section, from left to right view of the section view.

[0029] Figure 8 is Figure 7 the enlarged diagram of the part R.

[0030] Figure 9 is the state diagram of the developing box assembly of the embodiment four of the utility model is installed to the drum box.

[0031] Figure 10 is the first installation mode schematic diagram of the chip assembly in the developing box assembly of the embodiment four of the utility model.

[0032] Figure 11 is the second installation mode schematic diagram of the chip assembly in the developing box assembly of the embodiment four of the utility model.

[0033] Figure 12 is the schematic diagram of the developing box and drum frame combination of the embodiment five of the utility model.

[0034] Figure 13 is the schematic diagram of the developing box and drum frame combination of the embodiment five of the utility model.

[0035] Figure 14 is the schematic diagram of the developing box and drum frame combination of the embodiment five of the utility model.

[0036] Figure 15A and Figure 15B is the schematic diagram of the developing box and drum frame combination of the embodiment five of the utility model.

[0037] Figure 16A and Figure 16B is the schematic diagram of the developing box and drum frame combination of the embodiment five of the utility model.

[0038] Figure 17 is the schematic diagram of the developing box and drum frame combination of the embodiment five of the utility model.

[0039] Figure 18 is the schematic diagram of the developing box and drum frame combination of the embodiment five of the utility model.

[0040] Figure 19This is a schematic diagram of the deformed developing cartridge and drum unit combined in Embodiment 7 of this utility model.

[0041] Figure 20 and Figure 21 This is a schematic diagram of the deformed developing cartridge being installed into the imaging device in Embodiment 7 of this utility model.

[0042] Figure 22 This is a schematic diagram of the cover element involved in Embodiment 8 of this utility model.

[0043] Figure 23 This is a schematic diagram of the chip assembly involved in Embodiment 8 of this utility model.

[0044] Figure 24 This is a schematic diagram of the chip assembly installed in place according to Embodiment 8 of this utility model.

[0045] Figure 25 This is a schematic diagram of the cover element involved in Embodiment 9 of this utility model.

[0046] Figure 26 This is a schematic diagram of the chip assembly involved in Embodiment Nine of this utility model.

[0047] Figure 27 This is a schematic diagram of the developing cartridge being installed in an imaging device according to Embodiment 9 of this utility model.

[0048] Figure 28 This is a schematic diagram of the cover element involved in Embodiment 10 of this utility model.

[0049] Figure 29 and Figure 30 This is a schematic diagram of the chip assembly involved in Embodiment 10 of this utility model.

[0050] Figure 31A and Figure 31B This is a schematic diagram of the developing cartridge being installed into the drum cartridge according to Embodiment Eleven of this utility model.

[0051] Figure 32A This is a schematic diagram of the electrical connection between the chip assembly and the stylus in the imaging device according to Embodiment 11 of this utility model.

[0052] Figure 32B and Figure 32C This is a schematic diagram of the guide rail in the imaging device according to Embodiment Eleven of this utility model.

[0053] Figures 33A-33C This is a schematic diagram of the chip assembly involved in Embodiment Eleven of this utility model.

[0054] Figure 34A This is a schematic diagram of the end cap and chip assembly involved in Embodiment Eleven of this utility model.

[0055] Figure 34B is a schematic view of the end cover involved in the embodiment eleven of the present application.

[0056] Figure 35A is a schematic view of the developing cartridge after being installed to the drum cartridge involved in the embodiment twelve of the present application.

[0057] Figure 35B is an exploded schematic view of the driving end of the developing cartridge involved in the embodiment twelve of the present application.

[0058] Figure 35C is a side view when viewed from left to right of the developing cartridge and the drum cartridge combined involved in the embodiment twelve of the present application.

[0059] Figure 36A is a schematic view of the chip assembly involved in the embodiment twelve of the present application.

[0060] Figure 36B is a schematic view of the chip rack involved in the embodiment twelve of the present application.

[0061] Figure 37A is a structural schematic view of the first abutting portion and the first force applying portion involved in the embodiment twelve of the present application.

[0062] Figure 37B is a schematic view of the separating member involved in the embodiment twelve of the present application.

[0063] Figure 37C is a schematic view of the first abutting portion involved in the embodiment twelve of the present application.

[0064] Figure 38A is a structural schematic view of the second abutting portion and the second force applying portion involved in the embodiment twelve of the present application.

[0065] Figure 38B is a schematic view of the second force applying portion involved in the embodiment twelve of the present application.

[0066] Figure 38C is a schematic view of the second abutting portion involved in the embodiment twelve of the present application.

[0067] Figure 39 is a schematic view of the developing cartridge and the drum cartridge when installed to the image forming device involved in the embodiment thirteen of the present application.

[0068] Figure 40 is a schematic view of the developing cartridge when installed to the drum cartridge involved in the embodiment thirteen of the present application.

[0069] Figure 41A and Figure 41B is a schematic view of the chip assembly involved in the embodiment thirteen of the present application.

[0070] Figure 42A is a schematic view of the developing cartridge when the developing cartridge is installed to the drum cartridge from the non-driving end.

[0071] Figure 42B is a schematic view of the developing cartridge when the developing cartridge is observed from right to left.

[0072] Figure 43 is a schematic view of the developing cartridge and the drum cartridge when the developing cartridge and the drum cartridge are installed to the image forming apparatus.

[0073] Figure 44A and Figure 44B is a schematic view of the chip assembly mounting portion.

[0074] Figure 45 is a schematic view of the developing cartridge and the drum cartridge when the developing cartridge and the drum cartridge are installed to the image forming apparatus.

[0075] Figure 46 is a schematic view of the chip assembly. DETAILED DESCRIPTION

[0076] Embodiments related to the present application will be described in detail below with reference to the accompanying drawings.

[0077] [Embodiment One]

[0078] As shown in Figure 1 , the process cartridge includes a developing cartridge assembly 100 and a drum cartridge 200, the process cartridge is capable of being detachably installed to an image forming apparatus, the developing cartridge assembly 100 includes a developing cartridge and a chip assembly 300, wherein the developing cartridge includes a cartridge body 11 and a developing roller 13, the cartridge body 11 is used for accommodating a developer, the developing roller 13 is rotatably arranged in the cartridge body 11 and is used for carrying the developer, the chip assembly 300 cooperates with the developing cartridge assembly 100, and the chip assembly 300 is provided with a chip 32 used for establishing a communication connection with the image forming apparatus; the drum cartridge 200 includes a drum frame 21 and a photosensitive drum 23 rotatably arranged in the drum frame 21, the drum frame 21 is formed with an accommodating space 22 capable of accommodating the developing cartridge, in the developing cartridge assembly 100, at least the developing cartridge and the drum cartridge are detachably combined, or in other words, at least the developing cartridge is capable of being detachably installed to the accommodating space 22.

[0079] Preferably, the drum cartridge 200 further comprises a pusher 24 movable relative to the drum frame 21, which pushes the developing cartridge when the developing cartridge is installed into the accommodating space 22, so that the developing roller 13 and the photosensitive drum 23 are kept close to each other, and the imaging device develops when the developing roller 13 supplies the developer to the photosensitive drum 23 on which the latent electrostatic image is formed, so that the latent electrostatic image is developed.

[0080] Hereinafter, the direction in which the developing roller 13 extends is defined as the first direction / longitudinal direction / left-right direction, the direction intersecting the first direction is defined as the second direction / lateral direction / front-rear direction, and the direction intersecting the first direction and the second direction is defined as the third direction / vertical direction / up-down direction, the developing roller 13 is located at one end of the cartridge body 11 / in front of the cartridge body 11 in the second direction, and the opposite end is located at the rear of the cartridge body 11, preferably, the first direction, the second direction and the third direction are perpendicular to each other, and the side of the developing roller 13 exposed in the third direction is the upper side, and the opposite side is the lower side.

[0081] Further, the developing cartridge assembly 100 further comprises a driving force receiving member 15 for receiving a driving force from the imaging device, which directly or indirectly transmits the driving force to the developing roller 13 to drive the developing roller 13 to rotate around the rotation axis L extending in the first direction, in the first direction, the end of the driving force receiving member 15 is the driving end, and the opposite end is the non-driving end.

[0082] As shown in Figure 6 and Figure 7 According to the posture of the developing cartridge / treatment cartridge after being installed into the imaging device, it is defined that, in the first direction, the right side is from the driving end to the non-driving end, and the left side is the opposite, in the second direction, the upper side is from the end provided with the developing roller 13 to the end not provided with the developing roller 13, and the lower side is the opposite, and in the third direction, the front side is the side of the developing roller 13 exposed, and the rear side is the opposite.

[0083] In practice, the developing cartridge assembly 100 and the drum cartridge 200 can be combined to form a treatment cartridge outside the imaging device, which is installed into the imaging device in a detachable manner, or the drum cartridge 200 is installed into the imaging device, and then the developing cartridge assembly 100 is installed into the drum cartridge 200, or the drum cartridge 200 is pre-installed in the imaging device, and the developing cartridge assembly is directly installed into the imaging device / drum cartridge 200 in a detachable manner.

[0084] More specifically, the chip assembly 300 in the developing cartridge assembly 100 can also be independent of the developing cartridge, so that the combination of the developing cartridge assembly 100 and the drum cartridge 200 can also be divided into three ways, the first way, the developing cartridge is combined with the drum cartridge 200, after the combination of the developing cartridge and the drum cartridge 200 is installed to the image forming device, the chip assembly 300 is installed, the second way, the developing cartridge is combined with the drum cartridge 200, before the combination of the developing cartridge and the drum cartridge 200 is installed to the image forming device, the chip assembly 300 is installed to the developing cartridge / drum cartridge, and then the developing cartridge, the chip assembly 300 and the drum cartridge 200 are installed to the image forming device together, the third way, the developing cartridge is combined with the chip assembly 300 to form the developing cartridge assembly 100, and the developing cartridge assembly 100 is combined with the drum cartridge 200 to form the process cartridge, and finally the process cartridge is installed to the image forming device in a detachable manner, the three ways will be described in detail in the embodiments of the present application.

[0085] As shown in Figure 1 and Figure 2 , the developing cartridge further comprises an end cover 14 arranged at the driving end, the end cover 14 is fixedly connected with the cartridge body 11, at least a part of the driving force receiving member 15 is exposed from the end cover 14, the chip assembly 300 is fixedly arranged on at least any one of the cartridge body 11 and the end cover 14, and the cartridge body 11 and the end cover 14 can be collectively referred to as the shell of the developing cartridge, the developing roller is rotatably arranged on the shell, and the chip assembly 300 is fixedly connected with the shell / developing cartridge.

[0086] The chip assembly 300 comprises a chip holder 31 and a chip 32 supported by the chip holder 31, the chip holder 31 is fixedly connected with the shell, comprises a front part 31a, a middle part 31c and a rear part 31b arranged in sequence from front to back along the third direction, the front part 31a is used for supporting the chip, the middle part 31c connects the front part 31a and the rear part 31b, the rear part 31b is oppositely arranged with the front part 31a and has a terminal face 31b1 facing the rear, the chip 32 comprises a substrate 321, a plurality of electrical contact parts 322 and a storage part (not shown), the electrical contact parts 322 are electrically connected with the storage part, the electrical contact parts 322 are used for contacting the stylus in the image forming device to form electrical connection, so that the chip 32 / developing cartridge assembly / process cartridge establishes communication connection with the image forming device, and the storage part is used for storing the information of the developing cartridge assembly / process cartridge, generally, the electrical contact parts 322 and the storage part are arranged on opposite sides of the substrate 321 respectively, that is, the electrical contact parts 322, the substrate 321 and the storage part are formed in one body, however, in the realizable way, the electrical contact parts 322 and the substrate 321 can also be separately arranged, as long as the electrical connection between the electrical contact parts 322 and the storage part is ensured, thus, the chip 32 supported by the chip holder 31 should be understood as at least the electrical contact parts 322 are supported by the chip holder 31, specifically, at least the electrical contact parts 322 in the chip 32 are supported by the front part 31a.

[0087] In some embodiments, the chip 32 further comprises a locating portion 323 arranged on the substrate 321, and correspondingly, the chip holder 31 is provided with a locating portion for cooperating with the locating portion 323, so that the chip 32 can be stably positioned on the chip holder 31. It should be understood that the combination of the locating portion 323 and the locating portion can be a snap combination, and can also be a welding combination, a magnetic combination, etc.

[0088] In some embodiments, the chip assembly 300 further comprises a first elastic member 33 for applying a pushing force to the chip 32 / the electrical contact portion 322 so that the chip 32 / the electrical contact portion 322 is close to the stylus.

[0089] In some embodiments, the chip assembly 300 further comprises an adapter 39, and the chip holder 31 is connected with the housing through the adapter 39. The adapter 39 can make the connection mode and the connection position of the chip assembly 300 with the housing more diverse. For the convenience of understanding, the following will be described by taking the case that the adapter 39 is not arranged.

[0090] An accommodating body 400 for accommodating the chip assembly 300 is arranged in the imaging device. The accommodating body 400 can be part of a guide rail for guiding the installation of the process cartridge, or can be an independent component other than the guide rail. Continue to take the case that the adapter 39 is not arranged as shown in the Figure 1 As shown, the accommodating body 400 comprises a main body 401, an accommodating cavity 402 and a stylus 403. The main body 401 has a front side plate 401a and a rear side plate 401b arranged opposite to each other in the front-rear direction. The accommodating cavity 402 is located between the front side plate 401a and the rear side plate 401b. The stylus 403 is arranged on the same side as the front side plate 401a, and the stylus 403 faces the accommodating cavity 402. When the stylus 403 is subjected to a forward extrusion force, the stylus 403 can retract towards the inside of the front side plate 401a. According to the above description, the accommodating cavity 402 can also be arranged on the developing cartridge. Therefore, the accommodating cavity 402 should be understood as being arranged between the developing cartridge and the imaging device.

[0091] Further, the accommodating body 400 further comprises a device-side guide surface 404, and the rear side plate 401b further has a rear surface 401c facing the front side plate 401a. The guide surface 404 is adjacent to the rear surface 401c, and preferably, the guide surface 404 is connected with the rear surface 401c. In this way, under the action of the guide surface 404, the chip assembly 300 can more smoothly enter the accommodating cavity 402.

[0092] As described above, the chip holder 31 is fixedly connected with the housing, so that the chip assembly 300 will be installed along with the installation of the developing cartridge to the drum cartridge 200 / the imaging device, and will be disassembled along with the disassembly of the developing cartridge from the drum cartridge 200 / the imaging device.

[0093] As Figure 3As shown, when the developing cartridge assembly 100 / processing cartridge is installed to the predetermined position of the image forming device, at least a part of the chip holder 31 enters the accommodating cavity 402 in the chip assembly 300, the contact pin 403 is in contact with the chip 32 / electric contact portion 322, preferably, under the action of the first elastic member 33, the contact pin 403 and the chip 32 / electric contact portion 322 can be kept in a more stable contact state; along the third direction, the end surface 31b1 faces the rear surface 401c, but the end surface 31b1 does not contact the rear surface 401c and a gap g is formed between the two, which is preferably 0.5mm-4mm.

[0094] During the installation process of the developing cartridge assembly 100 / processing cartridge to the image forming device, or during the dismounting process from the image forming device, the gap g always exists, so that the installation and dismounting process will become more smooth.

[0095] In some embodiments, when the image forming device does not develop, the developing roller 13 and the photosensitive drum 23 will change from the state of approaching each other to the state of separating from each other, specifically, the image forming device applies a separation force to the separation mechanism 25 arranged in the drum cartridge 200, which makes the developing cartridge push upwardly so that the developing roller 13 and the photosensitive drum 23 separate from each other; in the case that the chip holder 31 is fixedly connected with the housing, as the developing cartridge moves upwardly, the chip holder 31 will also move upwardly, but as long as the gap g exists, the chip 32 / electric contact portion 322 supported by the chip holder 31 will slide relative to the contact pin 403 in the second direction, but in the third direction, the electric contact portion 322 and the contact pin 403 will still keep stable contact.

[0096] On the other hand, when the developing cartridge assembly 100 is in the state of being installed to the image forming device, when the image forming device is shaken, the gap g can provide the chip holder 31 with a moving space in the third direction, which is beneficial to prevent the chip holder 31 from being damaged by hard contact with the accommodating body 400; further, when the gap g is set to be smaller than the size of the contact pin 403 being pressed backward by the chip 32 / electric contact portion 322, during the movement of the chip holder 31, even if the end surface 31b1 contacts the rear surface 401c, it can be ensured that the contact pin 403 does not disengage from the chip 32 / electric contact portion 322.

[0097] [Embodiment Two]

[0098] The same structure as Embodiment One will not be described again, and the same components as Embodiment One will adopt the same numbers, and the differences between this embodiment and Embodiment One will be mainly described below.

[0099] As shown in FIG. 6, the gap g is formed between the end surface 31b1 of the chip holder 31 and the rear surface 401c of the accommodating body 400. Figure 4 and Figure 5As shown, the chip assembly 300 in the embodiment further comprises a second elastic member 34 arranged at the rear portion 31b, the arrangement of the second elastic member 34 can ensure that the contact pin 403 is in stable contact with the chip 32 / electric contact portion 322, when the chip rack 31 with the second elastic member 34 enters the accommodating cavity 402, whether the second elastic member 34 is in contact with the rear surface 401c or not, the purpose of the utility model can be achieved, but the end surface 31b1 is always not in contact with the rear surface 401c.

[0100] Further, the chip rack 31 further comprises a hollow portion 31d arranged at the middle portion 31c, the arrangement of the hollow portion 31d can reduce the material amount of the chip rack 31 on one hand, and on the other hand, when the chip rack 31 is extruded in the third direction, the hollow portion 31d can make the chip rack 31 produce a slight deformation amount in the third direction, so that the electric contact portion 322 and the contact pin 403 can keep stable contact; preferably, the hollow portion 31d penetrates the middle portion 31c along a direction intersecting the third direction.

[0101] [Embodiment three]

[0102] The imaging device is provided with a mounting port for allowing the installation of the process cartridge / developing cartridge / developing cartridge assembly 100 and a door cover 500 for covering the mounting port, for a color imaging device, generally four process cartridges need to be installed in the imaging device to develop, the structures of the four process cartridges are basically the same, but the colors of the developers contained therein are different, such as Figure 6 As shown, along the direction from back to front, there are a black process cartridge K, a blue process cartridge C, a red process cartridge M and a yellow process cartridge Y arranged in sequence.

[0103] In some embodiments, the four process cartridges can be installed on a tray which can be moved in the front-back direction in sequence, then the tray is pushed forward until it reaches a predetermined position in the imaging device, then the door cover 500 is closed.

[0104] In some embodiments, the tray can also be fixed in the imaging device, at this time, the user directly installs the four process cartridges to the imaging device, then closes the door cover 500.

[0105] The door cover 500 comprises a cover body 501 and a protruding portion 502 connected with the cover body 501, in the imaging device, the protruding portion 502 protrudes from the cover body 501 towards the mounting cavity Q for accommodating the process cartridges, and the number of the protruding portions is the same as the number of the process cartridges, each protruding portion corresponds to a process cartridge.

[0106] As Figure 7 and Figure 8As shown, when the door cover 500 is closed, along the second direction, the protrusion 502 is opposite to the receiving cavity 402, and the end face 31b1 still does not contact the rear surface 401c, and a gap g is still formed between them; furthermore, the chip assembly 300 also includes an extension 35 connected to the chip holder 31. Along the third direction, the extension 35 is used to abut against the protrusion 502, so that the gap g can be stably maintained.

[0107] Preferably, the extension 35 protrudes from the chip holder 31 in the form of a cantilever. Therefore, regardless of whether the extension 35 is integrally formed with the chip holder 31, the extension 35 always has a certain amount of deformability. Thus, the chip assembly in this embodiment also has the advantages described in Embodiment 2, and is conducive to improving the contact stability between the electrical contact 322 and the stylus 403.

[0108] In some embodiments, when the door cover 500 is closed, the end face 31b1 contacts the rear surface 401c without a gap g between them. However, the contact stability between the electrical contact 322 and the stylus 403 is still maintained by the abutting action of the extension 35 and the protrusion 502.

[0109] In some embodiments, when the cover 500 is closed, the chip assembly 300 can also contact other parts of the cover 500, for example, the extension 35 engages with a recess provided in the cover 500, or the cover 501 engages with the chip assembly 300, etc.

[0110] [Example 4]

[0111] Unlike the above embodiments, in this embodiment, the chip assembly 300 is set separately from the developing cartridge. That is, in the developing cartridge assembly 100, the chip assembly 300 is independent of the developing cartridge and is no longer connected to the developing cartridge. When at least a portion of the chip assembly 300 involved in this embodiment is accommodated by the housing 400, the end face 31b1 contacts or forms a gap g with the rear surface 401c.

[0112] like Figure 9 As shown, the developing cartridge also includes a guide 16, which guides the chip assembly 300 toward the receiving cavity 402; as described above, there are three ways to combine the developing cartridge assembly 100 with the drum cartridge 200. Figure 10 The first method is shown, in which the developing cartridge and the drum cartridge 200 are first combined, then the combined developing cartridge and the drum cartridge 200 are installed into the imaging device, and finally the chip assembly 300 is installed downward along the second direction into the receiving cavity 402. During the installation of the chip assembly 300, the guide surface 161 provided on the guide member 16 can guide the chip assembly 300.

[0113] Preferably, the guide member 16 protrudes to the left from the housing, and the guide surface 161 is an inclined surface provided on the guide member 16.

[0114] More preferably, the chip assembly 300 also includes a gripping part 36 disposed on the chip holder 31, which facilitates the user to install and remove the chip assembly 300 independently. The gripping part 36 can be a protrusion protruding from the chip holder 31 or a recess disposed on the chip holder 31.

[0115] As can be seen, in the first method, the chip assembly 300 does not need to be connected to the developing cartridge, which allows the chip assembly 300 to be freely installed in or removed from the imaging device as an independent component; in the second and third methods, the chip assembly 300 needs to be connected to the developing cartridge. Specifically, the chip assembly 300 can be attached to the outer surface of the housing or installed in a pre-set cavity of the developing cartridge.

[0116] Clearly, the chip assembly 300 in the first approach offers greater operability and design freedom. When only a component in the chip assembly 300 or a component in the developing cartridge needs replacement, the user only needs to replace one of the chip assembly 300 or the developing cartridge, while the other can continue to be used, which helps reduce the user's operating costs. On the other hand, the relatively independent chip assembly 300 and developing cartridge also have wider versatility. For example, in two similar models, the only difference is the data or shape of the chip, or the only difference is the structure or developer color in the developing cartridge. In this case, the manufacturer of the developing cartridge assembly 100 / processing cartridge can combine the corresponding chip assembly 300 and developing cartridge according to actual shipping requirements. Similarly, users can also combine the chip assembly 300 and developing cartridge according to their own needs.

[0117] Based on the inventive concept of this utility model, this utility model also provides a developing cartridge as described below, such as... Figures 12-14 As shown, the developing cartridge B100 and the drum stand / drum box B900 are combined and installed together in the imaging device PM through the mounting port 010 to perform developing / imaging operations. When it is necessary to remove / take out the developing cartridge B100, the developing cartridge B100 together with the drum stand / drum box B900 is removed / taken out of the imaging device PM to the outside of the mounting port 010.

[0118] like Figures 12-14 As shown, the developing cartridge B100 includes a housing B1 for containing developer and a developing element / developing roller B11 rotatably disposed within the housing B1 (e.g., Figure 19 As shown), the developing element / developing roller B11 extends along a first direction and can rotate about a rotation axis L parallel to the first direction (e.g., ...). Figure 19In the second direction, the developing member / developing roller B11 is located at one end of the housing B1, and the developing cartridge B100 is combined with the drum holder / drum cartridge B900, and the developing member / developing roller B11 is opposite to the photosensitive member / photosensitive drum B910 provided in the drum holder / drum cartridge B900, the photosensitive member / photosensitive drum B910 is rotatably provided in the frame / drum frame B901 of the drum holder / drum cartridge B900, and the developing member / developing roller B11 is used to transport the developing agent to the photosensitive member / photosensitive drum B910. The developing cartridge B100 further comprises a driving force receiving member B12 provided at one end of the housing B1 in the first direction, and the driving force receiving member B12 is used to receive the driving force provided by the image forming apparatus PM, so as to drive the developing member / developing roller B11 to rotate.

[0119] Further, in the second direction, the direction in which the developing member / developing roller B11 is close to the photosensitive member / photosensitive drum B910 is defined as the installation direction, and the direction in which the developing member / developing roller B11 is away from the photosensitive member / photosensitive drum B910 is defined as the dismounting / removing direction.

[0120] Further, one end where the driving force receiving member B12 is located can be defined as a driving end C1, and the other end opposite to the driving end C1 in the first direction can be defined as a non-driving end C2.

[0121] In the first direction, the developing cartridge B100 further comprises a cover member / end cover B31 provided at one end of the housing B1, and further, the cover member / end cover B31 comprises a cover member main body B311 and a cover member avoiding opening B312, and when the cover member / end cover B31 is provided at the driving end C1, at least a part of the driving force receiving member B12 is exposed from the cover member avoiding opening B312.

[0122] The developing cartridge B100 comprises a developing cartridge main body B10 and a chip assembly B20, the developing cartridge main body B10 refers to all components except the chip assembly B20, that is, the developing cartridge main body B10 comprises the housing B1 and the developing member / developing roller B11, and a part of the chip assembly B20 is used to be electrically connected / electrically contacted with the stylus / electric stylus 403 (as shown). Figure 22 Further, the chip assembly B20 is separately provided with the developing cartridge main body B10 (the chip assembly B20 is independent of the developing cartridge main body B10), or the chip assembly B20 is provided at the middle position of the developing cartridge main body B10, and the chip assembly B20 can be separately provided with the developing cartridge main body B10 or provided at the middle position of the developing cartridge main body B10 before the developing cartridge B100 is transported or installed to the image forming apparatus PM; when the chip assembly is provided at the middle position of the developing cartridge main body B10, the chip assembly B20 can be located at the side close to the door cover of the image forming apparatus PM when the developing cartridge main body B10 is in the image forming apparatus PM, or can be located at the side close to the inner wall of the image forming apparatus PM when the developing cartridge main body B10 is in the image forming apparatus PM.

[0123] After the chip assembly B20 is installed to the image forming apparatus PM, the chip assembly B20 has / does not have an assembly relationship with the developing cartridge main body B10, which will be further described in the subsequent content.

[0124] [Embodiment Five]

[0125] In this embodiment, the chip assembly B20 is arranged at the intermediate position of the developing cartridge main body B10 before the developing cartridge B100 is transported or installed to the image forming apparatus PM, when the developing cartridge B100 needs to be installed to the image forming apparatus PM, the chip assembly B20 is taken off from the developing cartridge main body B10 first, then the developing cartridge main body B10 is attached on the drum holder / drum cartridge B900, the chip assembly B20 is installed to the image forming apparatus PM independently from the developing cartridge main body B10, specifically, the developing cartridge main body B10 can be installed to the image forming apparatus PM first, then the chip assembly B20 is installed to the image forming apparatus PM, or the chip assembly B20 is installed to the image forming apparatus PM first, then the developing cartridge main body B10 is installed to the image forming apparatus PM, that is, after the chip assembly B20 is installed to the image forming apparatus PM, the chip assembly B20 does not contact with the developing cartridge main body B10, that is, the chip assembly B20 does not have an assembly relationship with the developing cartridge main body B10.

[0126] After the chip assembly B20 and the developing cartridge main body B10 are installed to the image forming apparatus PM, the chip assembly B20 can be electrically connected / electrically contacted with the stylus / electric stylus 403, at this time, the chip assembly B20 is located at the installation position relative to the developing cartridge main body B10, specifically, the installation position refers to the position that can realize the electrical connection / electric contact between the chip assembly B20 and the stylus / electric stylus 403.

[0127] Further, in this application, the installation position can be located at the driving end C1, or at the non-driving end C2, along the first direction, the intermediate position is arranged between the driving end C1 and the non-driving end C2, relative to the installation position, the chip assembly B20 further has a non-installation position, the non-installation position refers to the case that the chip assembly B20 is located at the intermediate position and the case that the chip assembly B20 is arranged separately from the developing cartridge main body B10 (the chip assembly B20 is independent from the developing cartridge main body B10), when the chip assembly B20 is located at the non-installation position relative to the developing cartridge main body B10, the chip assembly B20 does not contact with the stylus / electric stylus 403.

[0128] Further, when the chip assembly B20 is located at the middle position, the developing cartridge main body B10 is provided with an engaging assembly for allowing the chip assembly B20 to be arranged on the developing cartridge main body B10. In the present embodiment, the engaging assembly comprises an engaging portion B131, and the chip assembly B20 is arranged on the developing cartridge main body B10 through the engaging portion B131. In the first direction, the engaging portion B131 is located between the driving end C1 and the non-driving end C2. The engaging portion B131 is further provided with an engaging member for engaging with at least a part of the chip assembly B20 so as to allow the chip assembly B20 to be arranged on the developing cartridge main body B10. In the present embodiment, the chip assembly B20 is engaged with the engaging portion B131 by means of adhesion. Specifically, the engaging member is provided in the form of an adhesive, which can be glue or double-sided tape, as long as it can allow the chip assembly B20 to be arranged on the developing cartridge main body B10.

[0129] In some embodiments, the engagement between the chip assembly B20 and the engaging portion B131 can also be snap engagement, frictional engagement, magnetic engagement, riveting, etc., as long as it can allow the chip assembly B20 to be arranged on the developing cartridge main body B10 and to be removed from the engaging portion B131.

[0130] Further, the chip assembly B20 at least includes an electrical contact portion B211 for electrical connection / electrical contact with the stylus / electrical stylus 403. Specifically, the chip assembly B20 is provided with a chip B21 and a chip seat B22. The chip B21 includes a chip substrate B212 and an electrical contact portion B211 provided on the chip substrate B212. The electrical contact portion B211 is used for electrical connection / electrical contact with the stylus / electrical stylus 403, so that the developing cartridge B100 establishes a communication connection with the image forming apparatus PM. When the developing cartridge main body B10 is provided with the engaging portion B131, the chip assembly B20 further includes an engaged portion B224 provided on the chip seat B22. The engaged portion B224 is used for engagement with the engaging portion B131, so that the chip assembly B20 can be arranged on the developing cartridge main body B10. The chip assembly B20 is further provided with a holding portion B223 connected with the chip seat B22. The holding portion B223 can facilitate a user to take the chip assembly B20. The chip assembly is further provided with an elastic member B225. The elastic member B225 can be arranged on a side of the chip substrate B212 away from the electrical contact portion B211, that is, the elastic member B225 can be arranged between the chip B21 and the chip seat B22. The elastic member B225 can also be arranged on a side of the chip seat B22 opposite to the chip B21. The elastic member B225 can also be arranged on both of the aforementioned positions. Further, the elastic member B225 can be elastically deformed. By arranging the elastic member B225, the chip assembly B20 can be flexibly connected with the image forming apparatus PM, so that the electrical connection / electrical contact between the chip B21 and the stylus / electrical stylus 403 is more stable. Further, the elastic member B225 can be a sponge, a spring, rubber, etc., which is not limited herein.

[0131] When the developing cartridge B100 needs to be detached / taken out from the image forming apparatus PM, the developing cartridge main body B10 and the chip assembly B20 are detached / taken out separately. The chip assembly B20 will not be taken out together with the developing cartridge main body B10 from the image forming apparatus PM. Specifically, the detachment / taking out sequence of the developing cartridge main body B10 and the chip assembly B20 can be exchanged. That is, the chip assembly B20 can be detached / taken out first, and then the developing cartridge main body B10 is detached / taken out. Alternatively, the developing cartridge main body B10 can be detached / taken out first, and then the chip assembly B20 is detached / taken out.

[0132] In some embodiments, the developing cartridge main body B10 can not be provided with the engaging portion B131. The chip assembly B20 and the developing cartridge main body B10 are arranged separately (the chip assembly B20 is independent of the developing cartridge main body B10) before the developing cartridge B100 is transported or installed into the image forming apparatus PM.

[0133] It should be noted that in this application, when the developing cartridge B100 needs to be installed into the imaging device PM, the chip assembly B20 needs to be installed separately. That is to say, during transportation or before installation into the imaging device PM, the chip assembly B20 is in a non-installation position relative to the developing cartridge body B100. In this application, the chip assembly B20 is installed into the imaging device PM independently of the developing cartridge body B100.

[0134] like Figure 15B As shown, the side wall 001 of the imaging device PM is located on one side of the developing cartridge body B10. The upper wall 002 and lower wall 003 of the imaging device are arranged opposite to each other. The stylus / electrical stylus 403 is arranged on the upper wall 002. The side wall 001, upper wall 002 and lower wall 003 enclose a chip assembly receiving space 007. When the chip assembly B20 is installed into the imaging device PM, it is received by the chip assembly receiving space 007 so that the chip assembly B20 can be installed. The side wall 001, upper wall 002 and lower wall 003 can position the chip assembly B20 so that the electrical contact part B211 of the chip B21 is electrically connected / contacts the stylus / electrical stylus 403. Along the direction intersecting with the first direction, the side of the chip holder B22 opposite to the chip B21 / elastic member B225 is used to abut against the lower wall 003.

[0135] In some implementations, the chip assembly 22 can also be positioned by other components in the imaging device PM.

[0136] By positioning the chip assembly B20 in a non-installation position relative to the developing cartridge body B100 during transport or before installation into the imaging device PM, i.e., the chip assembly B20 and the developing cartridge body B100 are separately configured, or the chip assembly B20 is positioned in the middle of the developing cartridge body B10, the beneficial effects of this embodiment are as follows:

[0137] 1. It can simplify the structure of the developing cartridge body B10 to avoid interference between the developing cartridge body B10 and the imaging device PM during the installation process, so as to ensure smooth installation of the developing cartridge body B10 and improve the user experience.

[0138] 2. When the chip assembly B20 is located in the middle of the developing cartridge body B10, if the user installs the developing cartridge B100 without removing the chip assembly B20, the door cover of the imaging device PM will be blocked by the chip assembly B20 and cannot be closed, or the inner wall of the imaging device PM will interfere with the chip assembly B20, making it impossible to install the developing cartridge B100. Therefore, the user can be prompted to remove the chip assembly B20 before installation.

[0139] [Example 6]

[0140] like Figure 15Aand Figure 15B 、 Figure 16A and Figure 16B As shown in FIG. 13, on the basis of the embodiment five, in the present embodiment, the developing cartridge main body B10 is provided with a connecting portion B32 for connecting the chip assembly B20 removed from the engaging portion B131, the chip assembly B20 further comprises a connected portion B222 provided on the chip seat B22, the connected portion B222 is used for connecting the connecting portion B32, when the chip assembly B20 is connected with the connecting portion B32, the chip assembly B20 is in the mounted position relative to the developing cartridge main body B10. Further, the connecting portion B32 is provided on the cover / end cover B31, the connecting portion B32 is provided as a protrusion protruding from the cover main body B311 in the first direction towards the driving end C1 (the direction away from the housing B1 / the non-driving end C2), the connecting portion B32 comprises a first surface B321 and a second surface B322 oppositely arranged in the thickness direction of the connecting portion B32, the first surface B321 is provided with a connecting piece B323 for connecting the chip assembly B20, the connecting piece B323 is used for connecting the connected portion B222, the connecting mode of the chip assembly B20 and the connecting piece B323 can be adhesion, buckle joint or friction joint, etc., as long as the chip assembly B20 can be connected with the connecting piece B323 after being removed from the engaging portion B131 and the chip assembly B20 can be easily removed from the connecting portion B32.

[0141] In the present embodiment, the chip assembly B20 and the connecting piece B323 are provided in the adhesion mode, further, the connecting piece B323 is provided as an adhesive for connecting the chip assembly B20, the adhesive can be glue or double-sided tape, as long as the chip assembly B20 can be connected with the connecting piece B323. In some embodiments, the connecting portion B32 can also be provided on the housing B1.

[0142] It should be noted that in the present embodiment, after the chip assembly B20 is installed into the image forming apparatus PM, the chip assembly B20 and the connecting piece B323 are connected in the adhesion mode, and the chip assembly B20 and the developing cartridge main body B10 do not have an assembly relationship. When the chip assembly B20 and the connecting piece B323 are frictionally engaged, the chip assembly B20 and the developing cartridge main body B10 do not have an assembly relationship; when the chip assembly B20 and the connecting piece B323 are connected by buckle joint, the chip assembly B20 and the developing cartridge main body B10 have an assembly relationship.

[0143] Further, the position of the connecting portion B222 with respect to the developing cartridge main body B10 is different before the developing cartridge B100 is installed to the image forming apparatus PM and after the developing cartridge B100 is installed to the image forming apparatus PM, specifically, before the developing cartridge B100 is installed to the image forming apparatus PM, the connecting portion B222 is located at the non-installed position with respect to the developing cartridge main body B10, and after the developing cartridge B100 is installed to the image forming apparatus PM, the connecting portion B222 is located at the installed position with respect to the developing cartridge main body B10.

[0144] In the present embodiment, the connecting portion B222 and the engaging portion B224 are the same member.

[0145] When the developing cartridge B100 needs to be installed to the image forming apparatus PM, the chip assembly B20 is first removed from the engaging portion B131 and installed to the connecting portion B32, and then the assembled developing cartridge B100 is attached to the drum holder / drum cartridge B900 and finally installed to the image forming apparatus PM, or the developing cartridge main body B10 is first installed to the image forming apparatus PM, and then the chip assembly B20 is installed to the image forming apparatus PM.

[0146] When the developing cartridge B100 needs to be disassembled / taken out from the image forming apparatus PM, the chip assembly B20 is disassembled / taken out from the image forming apparatus PM together with the developing cartridge main body B10 through the connection with the connecting portion B32, and after the chip assembly B20 is taken out from the developing cartridge main body B10, the user can hold the chip assembly B20 to disengage the connecting portion B323, so as to directly take the chip assembly B20 out from the developing cartridge main body B10.

[0147] In some embodiments, the developing cartridge main body B10 is not provided with the engaging portion B131, but only provided with the connecting portion B32, that is, the chip assembly B20 is separately provided from the developing cartridge main body B10 (the chip assembly B20 is independent of the developing cartridge main body B10) during transportation or before being installed to the image forming apparatus PM.

[0148] In addition to the beneficial effects described in Embodiment Five, the present embodiment can also have the following beneficial effects:

[0149] When the developing cartridge B100 needs to be disassembled / taken out, the chip assembly B20 can be disassembled / taken out from the image forming apparatus PM together with the developing cartridge main body B10 through the connecting portion B32, so as to facilitate the user's operation.

[0150] [Embodiment Seven]

[0151] As Figure 17 and Figure 18As shown in Embodiment 5, in this embodiment, the bonding assembly includes a bonding portion B131 and a flexible member B132. Both the bonding portion B131 and the flexible member B132 are used to connect the chip assembly B20 and the developing cartridge body B10. Specifically, the flexible member B132 includes a first end B1321 and a second end B1322. The first end B1321 is used to connect with the developing cartridge body B10 / housing B1, and the second end B1322 is used to connect with the chip assembly B20. When the developing cartridge B100 is in transit or before being installed in the imaging device PM, the chip assembly B20 is bonded to the bonding portion B131 of the developing cartridge body B10.

[0152] When the developing cartridge B100 needs to be installed on the imaging device PM, after removing the chip assembly B20 from the joint B131, first attach the developing cartridge body B10 to the drum holder / drum box B900, then install the drum holder / drum box B900 and the developing cartridge body B10 on the imaging device PM, and finally install the chip assembly B20 on the imaging device PM.

[0153] When the developing cartridge B100 needs to be removed from the imaging device PM, the chip assembly B20 will be removed from the imaging device PM along with the developing cartridge body B10 through the flexible part B132 between the chip assembly B20 and the developing cartridge body B10.

[0154] Furthermore, the flexible component B132 can serve a connecting function. For example, the flexible component B132 can be, but is not limited to, straps, ropes, rubber bands, corrugated tubes, and spirals.

[0155] [Transformation 1]

[0156] like Figures 19-21 As shown, the first end B1321 of the flexible component B132 is used to connect with the developing cartridge body B10 / shell B1. Specifically, the first end B1321 is configured to connect with the connecting portion B131. The second end B1322 is used to connect with the chip assembly B20. Specifically, the second end B1322 is connected to the connector portion (not shown) provided on the chip assembly B20. Specifically, the connector portion is provided on the holding portion B223. The developing cartridge body B10 / shell B1 is also provided with a first blocking member B133 and a second blocking member B134. The first blocking member B133 and the second blocking member B134 are used to prevent the flexible component B132 from interfering with other components, thereby positioning the flexible component B132.

[0157] In some embodiments, the bonding assembly only includes the flexible element B132, that is, the developing cartridge body B10 does not have a bonding portion B131. During transportation or before installation into the imaging device PM, the chip assembly B20 is connected to the developing cartridge body B10 via the flexible element B132.

[0158] In the present embodiment and its variants, when the developing cartridge B100 needs to be detached / taken out from the image forming device PM, the chip assembly B20 can be taken out together with the developing cartridge main body B10 through the flexible piece B132, and after the chip assembly B20 is taken out, the chip assembly B20 is still connected with the developing cartridge main body B10 through the flexible piece B132.

[0159] It should be noted that in the present embodiment and its variants, the chip assembly B20 is connected with the developing cartridge main body B10 through the flexible piece B132, and after the chip assembly B20 is installed to the image forming device PM, the chip assembly B20 is not assembled on the developing cartridge main body B10, i.e. the chip assembly B20 and the developing cartridge main body B10 do not have an assembly relationship.

[0160] The beneficial effects that can be obtained by the present embodiment and its variants are as follows:

[0161] 1. The chip assembly B20 is connected with the developing cartridge main body B10 through the flexible piece B132, and when being detached / taken out, the chip assembly B20 can be taken out together with the developing cartridge main body B10 from the image forming device PM, thereby facilitating user operation.

[0162] 2. Before the chip assembly B20 is installed to the image forming device PM, the chip assembly B20 is connected with the developing cartridge main body B10 at least through the joint B131, and due to the provision of the flexible piece B132, even if the chip assembly B20 is disconnected from the joint B131, the chip assembly B20 can still be connected with the developing cartridge main body B10 through the flexible piece B132.

[0163] 3. After the chip assembly B20 is connected with the joint B131, by providing the flexible piece B132, it can be avoided that the chip assembly B20 is dropped from the joint B131 to the ground and damaged due to the chip assembly B20 not being connected well with the joint B131.

[0164] 4. After the chip assembly B20 is installed to the image forming device PM, the chip assembly B20 is connected with the developing cartridge main body B10 through the flexible piece B132, which can prevent the chip assembly B20 from being detached due to vibration of the image forming device PM.

[0165] [Embodiment Eight]

[0166] As Figures 22-24As shown, the connecting portion B32 is arranged on the cover / end cover B31, which is the same as that of Embodiment Six, but different from that of Embodiment Six, in this embodiment, the connecting portion B32 is provided with a first avoiding portion B321 for allowing at least a part of the chip assembly B20 to pass through and a magnet portion B323 for combining with the chip assembly B20 to enable the chip assembly B20 to be engaged with the connecting portion B32 and finally enable the chip assembly B20 to be detached / taken out from the image forming apparatus PM together with the developing cartridge main body B10; the chip assembly B20 is further provided with a holding portion B223 connected with the chip seat B22, which can facilitate a user to take the chip assembly B20. In some embodiments, the connecting portion B32 is further provided with a reinforcing rib B324 for improving the strength of the connecting portion B32. In some embodiments, the connecting portion B32 can also be arranged on the housing B1.

[0167] Further, the position of the connecting portion B222 relative to the developing cartridge main body B10 is different before the developing cartridge B100 is installed into the image forming apparatus PM and after the developing cartridge B100 is installed into the image forming apparatus PM, specifically, before the developing cartridge B100 is installed into the image forming apparatus PM, the connecting portion B222 is located at a non-installed position relative to the developing cartridge main body B10, and after the developing cartridge B100 is installed into the image forming apparatus PM, the connecting portion B222 is located at an installed position relative to the developing cartridge main body B10.

[0168] Further, at least a part of the chip assembly B20 is made of a material having magnetism, and the chip assembly B20 includes the connecting portion B222 arranged on the chip seat B22, which is used to combine with the magnet portion B323, and the connecting portion B222 has magnetism, and preferably, the entire chip seat B22 is made of a material having magnetism.

[0169] In this embodiment, the developing cartridge main body B10 can be provided with the engaging portion B131 or can not be provided with the engaging portion B131. When the developing cartridge main body B10 is not provided with the engaging portion B131, the chip assembly B20 is arranged separately from the developing cartridge main body B10 before the developing cartridge B100 is transported or installed into the image forming apparatus PM, and after the developing cartridge B100 is installed into the image forming apparatus PM, the connecting portion B222 of the chip assembly B20 is attracted by the magnet portion B323, at this time, the chip assembly B20 is located at the installed position relative to the developing cartridge main body B10.

[0170] When the developing cartridge B100 needs to be installed into the image forming apparatus PM, the developing cartridge main body B10 is first installed into the image forming apparatus PM, and then the chip assembly B20 is installed into the image forming apparatus PM; or the chip assembly B20 is first installed into the connecting portion B32, and then the chip assembly B20 and the developing cartridge main body B10 are installed into the image forming apparatus PM together.

[0171] When it is necessary to disassemble / remove the developing cartridge B100, the chip assembly B20 can be taken out of the imaging device PM along with the developing cartridge body B10 through the magnetic connection between the magnet part B323 and the connected part B222. After the chip assembly B20 is taken out by the developing cartridge body B10, there is no need to operate other parts of the developing cartridge body B10. The user can hold the chip assembly B20 to disengage it from the magnet part B323, thereby directly removing the chip assembly B20 from the developing cartridge body B10; or, the chip assembly B20 can be disassembled / removed first, and then the developing cartridge body B10 can be disassembled / removed.

[0172] It should be noted that in this embodiment, after the chip assembly B20 is installed into the imaging device PM, the chip assembly B20 and the developing cartridge body B10 are joined together by the magnetic connection between the magnet part B323 and the connected part B222. The chip assembly B20 is not assembled on the developing cartridge body B10, that is, there is no assembly relationship between the chip assembly B20 and the developing cartridge body B10.

[0173] [Example 9]

[0174] like Figures 25-27 As shown in Embodiments 6 and 8, the connecting part B32 is disposed on the cover / end cap B31. The difference is that in this embodiment, the connecting part B32 is configured as a protrusion protruding from the cover / end cap B31 along the first direction toward the driving end C1 (away from the housing B1 / non-driving end C2). The connecting part / protrusion B32 is provided with a connecting protrusion B323 intersecting the first direction. The connecting protrusion B323 is used to engage with the chip assembly B20 so that when the developing cartridge B100 is disassembled / removed, the chip assembly B20 can be taken out of the imaging device PM along with the developing cartridge body B10, which is convenient for user operation. The chip assembly B20 is also provided with a gripping part B223 connected to the chip holder B22. The gripping part B223 makes it easy for the user to pick up the chip assembly B20.

[0175] In some embodiments, the connecting portion B32 is further provided with a reinforcing rib B324, which is used to improve the strength of the connecting portion B32.

[0176] In some embodiments, the connecting part B32 may also be provided on the housing B1.

[0177] Further, the position of the connecting portion B222 with respect to the developing cartridge main body B10 is different before the developing cartridge B100 is installed into the image forming apparatus PM and after the developing cartridge B100 is installed into the image forming apparatus PM. Specifically, before the developing cartridge B100 is installed into the image forming apparatus PM, the connecting portion B222 is positioned at a non-installed position with respect to the developing cartridge main body B10, and after the developing cartridge B100 is installed into the image forming apparatus PM, the connecting portion B222 is positioned at an installed position with respect to the developing cartridge main body B10.

[0178] Further, the chip assembly B20 includes a connecting portion B222 provided on the chip seat B22. Further, the connecting portion B222 is provided as a recess, and the connecting portion / recess B222 is configured to be engaged with the connecting protrusion B323. When it is necessary to detach / take out the developing cartridge B100, the chip assembly B20 can be taken out from the image forming apparatus PM together with the developing cartridge main body B10, or the chip assembly B20 can be detached / taken out first, and then the developing cartridge main body B10 can be detached / taken out.

[0179] In the present embodiment, the engaging portion B131 can be provided on the developing cartridge main body B10, or can not be provided. When the engaging portion B131 is not provided on the developing cartridge main body B10, the chip assembly B20 is provided separately from the developing cartridge main body B10 before the developing cartridge B100 is transported or before the developing cartridge B100 is installed into the image forming apparatus PM. After the developing cartridge B100 is installed into the image forming apparatus PM, the connecting portion / recess B222 of the chip assembly B20 is engaged with the connecting protrusion B323 / connecting portion B32, and at this time, the chip assembly B20 is positioned at an installed position with respect to the developing cartridge main body B10. In some embodiments, after the developing cartridge B100 is installed into the image forming apparatus PM, the connecting portion / recess B222 of the chip assembly B20 is not in contact with the connecting protrusion B323. That is, there is a gap between the connecting portion / recess B222 of the chip assembly B20 and the connecting protrusion B323, and the chip assembly B20 is not assembled on the developing cartridge main body B10, that is, the chip assembly B20 and the developing cartridge main body B10 do not have an assembly relationship. When it is necessary to detach / take out the developing cartridge B100, the connecting protrusion B323 is in contact with the connecting portion / recess B222 during the process of detaching / taking out the developing cartridge main body B10, so that the chip assembly B20 can be taken out from the image forming apparatus PM together with the developing cartridge main body B10.

[0180] It should be noted that when the connecting portion / recess B222 of the chip assembly B20 is engaged with the connecting protrusion B323 / connecting portion B32 after the chip assembly B20 is installed into the image forming apparatus PM, the chip assembly B20 and the developing cartridge main body B10 have an assembly relationship. When the connecting portion / recess B222 of the chip assembly B20 is not in contact with the connecting protrusion B323, the chip assembly B20 and the developing cartridge main body B10 do not have an assembly relationship.

[0181] When the developing cartridge B100 needs to be installed into the imaging device PM, first install the developing cartridge body B10 into the imaging device PM, and then install the chip assembly B20 into the imaging device PM.

[0182] When it is necessary to disassemble / remove the developing cartridge B100, the chip assembly B20 is engaged with the connecting part B32, and the chip assembly B20 can be taken out of the imaging device PM along with the developing cartridge body B10. After the chip assembly B20 is taken out by the developing cartridge body B10, there is no need to operate other parts of the developing cartridge body B10. The user can hold the chip assembly B20 to disengage it from the connecting protrusion B323, thereby directly removing the chip assembly B20 from the developing cartridge body B10; or, the chip assembly B20 can be disassembled / removed first, and then the developing cartridge body B10 can be disassembled / removed.

[0183] [Example 10]

[0184] like Figure 28 and Figure 29 As shown, similar to Embodiments 6, 8, and 9, the connecting portion B32 is disposed on the cover / end cap B31. The difference is that in this embodiment, the connecting portion B32 is configured as a protrusion extending from the cover / end cap B31 along a first direction toward the driving end C1 (away from the housing B1 / non-driving end C2). The connecting portion / protrusion B32 has a recess B323 recessed along the first direction toward the non-driving end C2 (closer to the housing B1 / non-driving end C2). The recess B323 is used to interact with a portion of the chip assembly B20. The connecting portion / protrusion B32 also has an abutment surface B321, which interacts with a portion of the chip assembly B20. Along the installation direction, the abutment surface B321 is located upstream of the recess B323. That is, when the developing cartridge body B10 is installed to the imaging device PM first, and then the chip assembly B20 is installed to the imaging device PM, during the installation of the chip assembly B20 along the installation direction, a portion of the chip assembly B20 first interacts with the abutment surface B321 and then with the recess B323.

[0185] In some embodiments, the connecting part B32 may also be provided on the housing B1.

[0186] Furthermore, the position of the connecting part B222 relative to the developing cartridge body B100 is different before and after the developing cartridge B100 is installed in the imaging device PM. Specifically, before the developing cartridge B100 is installed in the imaging device PM, the connecting part B222 is in a non-installation position relative to the developing cartridge body B10, and after the developing cartridge B100 is installed in the imaging device PM, the connecting part B222 is in an installation position relative to the developing cartridge body B10.

[0187] Further, the chip assembly B20 further comprises a connected portion B222 provided on the chip seat B22, at least a part of the connected portion B222 is used to interact with the connecting portion B32, in particular, the connected portion B222 is provided with a movable portion B222a and an elastic portion B222b, at least a part of the movable portion B222a is used to combine with the connecting portion B32 / recess B323, in particular, the movable portion B222a is arranged to move along the first direction, and the elastic portion B222b is used to generate the elastic force for moving the movable portion B222a in the first direction. Further, the connected portion B222 has an inclined surface B222c provided on the side of the movable portion B222a towards the non-driving end C2, and the inclined surface B222c is used to abut against the abutting surface B321 of the connecting portion / protrusion B32.

[0188] Further, the inclined surface B222c can have different inclined directions, in particular, the inclined direction can be inclined towards the mounting direction (as shown in Figure 29 ), or can be inclined towards the dismounting / removing direction (as shown in Figure 30 ). According to different inclined directions, the mounting sequence of the developing cartridge body B10 and the chip assembly B20 is also different, in particular, when the inclined surface B222c is inclined towards the mounting direction, the developing cartridge body B10 is first mounted to the image forming apparatus PM, and then the chip assembly B20 is mounted to the image forming apparatus PM; when the inclined surface B222c is inclined towards the dismounting / removing direction, the abutting surface B321 is arranged downstream of the recess B323 along the mounting direction, at this time, the chip assembly B20 is first mounted to the image forming apparatus PM, and then the developing cartridge body B10 is mounted to the image forming apparatus PM.

[0189] In some embodiments, the connecting portion B32 can be arranged on the chip assembly B20, that is, the recess B323 and the abutting surface B321 are arranged on the chip assembly B20, and the connected portion B222 is arranged on the cover / end cover B31 or the shell B1, that is, the movable portion B222a and the elastic portion B222b are arranged on the cover / end cover B31 / the shell B1, similarly, the inclined surface B222c can be inclined towards the mounting direction, or can be inclined towards the dismounting / removing direction.

[0190] According to different inclined directions, the mounting sequence of the developing cartridge body B10 and the chip assembly B20 is also different, in particular, when the inclined surface B222c is inclined towards the mounting direction, the chip assembly B20 is first mounted to the image forming apparatus PM, and then the developing cartridge body B10 is mounted to the image forming apparatus PM; when the inclined surface B222c is inclined towards the dismounting / removing direction, the developing cartridge body B10 is first mounted to the image forming apparatus PM, and then the chip assembly B20 is mounted to the image forming apparatus PM.

[0191] The embodiment takes the inclination of the inclined surface B222c towards the installation direction as an example. When the developing cartridge B100 needs to be installed to the image forming apparatus PM, the developing cartridge main body B10 is first attached to the drum holder / drum cartridge B900, then the developing cartridge main body B10 is installed to the image forming apparatus PM together with the drum holder / drum cartridge B900, and finally the chip assembly B20 is installed to the image forming apparatus PM. Further, during the installation of the chip assembly B20, the inclined surface B222c abuts against the abutting surface B321 of the connecting portion / protrusion B32, so that the movable portion B222a moves along the first direction towards the driving end C1, thereby causing the elastic portion B222b to elastically deform. With the continuous installation of the chip assembly B20, the movable portion B222a enters the recess B323 of the connecting portion / protrusion B32 and is clamped thereunder the elastic force, and the chip assembly B20 is installed to the predetermined position. At this time, the chip assembly B20 is located at the installation position relative to the developing cartridge main body B10.

[0192] In some embodiments, the abutting surface B321 can also be provided as an inclined surface, and the movable portion B222a can be provided as a straight surface structure. When the developing cartridge B100 needs to be installed to the image forming apparatus PM, the developing cartridge main body B10 is first installed to the image forming apparatus PM, and then the chip assembly B20 is installed to the image forming apparatus PM.

[0193] In the embodiment, the developing cartridge main body B10 can be provided with the engaging portion B131, or can not be provided with the engaging portion B131. When the developing cartridge main body B10 is not provided with the engaging portion B131, the chip assembly B20 is separately provided from the developing cartridge main body B10 before the developing cartridge B100 is transported or installed to the image forming apparatus PM. After the developing cartridge B100 is installed to the image forming apparatus PM, the connected portion B222 / movable portion B222a of the chip assembly B20 is clamped with the recess B323, and at this time, the chip assembly B20 is located at the installation position relative to the developing cartridge main body B10.

[0194] When the developing cartridge B100 needs to be disassembled / taken out, the chip assembly B20 can be taken out from the image forming apparatus PM together with the developing cartridge main body B10 because the chip assembly B20 is clamped by the recess B323. After the chip assembly B20 is taken out by the developing cartridge main body B10, the chip assembly B20 directly falls off from the developing cartridge main body B10 under the elastic force of the elastic portion B222b of the chip assembly B20.

[0195] In combination with the above embodiments, when the developing cartridge B100 needs to be installed to the image forming apparatus PM, the specific installation method is as follows:

[0196] 1. The packaging of the chip assembly B20, the developing cartridge main body B10 and the drum holder / drum cartridge B900 are respectively disassembled.

[0197] 2. Attach the developing cartridge main body B10 to the drum cradle / drum cartridge B900.

[0198] 3. Install the developing cartridge main body B10 attached to the drum cradle / drum cartridge B900 into the image forming apparatus PM.

[0199] 4. Install the chip assembly B20 into the image forming apparatus PM.

[0200] In summary, by installing the chip assembly independently of the developing cartridge main body into the image forming apparatus, it is possible to avoid a situation where the developing cartridge main body interferes with the image forming apparatus during installation and cannot be smoothly installed, and it is also possible to avoid damage to the chip assembly due to impact.

[0201] Based on the inventive concept of the present application, the present application also provides the developing cartridge as described below.

[0202] [Embodiment Eleven]

[0203] In this embodiment, the developing cartridge C11 further includes a driving force receiving member / driving head C18 and a driving force transmission assembly for transmitting the driving force received by the driving force receiving member / driving head C18 to the components in the developing cartridge C11, the driving force receiving member / driving head C18 is located at one end of the housing / first cartridge body C111 in the longitudinal direction, the driving force receiving member / driving head C18 is used to receive the driving force from the image forming apparatus to drive the developing roller C15 to rotate, the driving force transmission assembly includes a driving force transmission portion C51, the driving force transmission portion C51 is coaxially arranged with the driving force receiving member / driving head C18.

[0204] As shown in Figure 31A , Figure 31B , Figure 32A , Figure 32B , Figure 32C , Figure 33A , Figure 33B , Figure 33C , Figure 34A , Figure 34B In this embodiment, the chip assembly C300 is detachably installed into the image forming apparatus independently of the developing cartridge main body (all components of the developing cartridge C11 except the chip assembly C300), that is, the chip assembly C300 is arranged separately from the developing cartridge main body, the chip assembly C300 is used to establish a communication connection between the developing cartridge main body and the image forming apparatus, that is, the developing cartridge main body is recognized by the image forming apparatus through the chip assembly C300.

[0205] Further, the chip assembly C300 is detachably installed in a chip assembly mounting portion 401 in the image forming apparatus, the chip assembly mounting portion 401 has a chip assembly accommodating space 4011 for accommodating the chip assembly C300.

[0206] Further, the chip C32 is detachably mounted on the chip rack C31. Specifically, the chip C32 has a first face C32a and a second face C32b, which are oppositely arranged. The chip C32 is provided with an electrical contact C321 for electrically connecting with the stylus 403. Specifically, the electrical contact C321 is located on the first face C32a. The chip C32 is further provided with a storage C322. In this embodiment, the storage C322 is arranged on the second face C32b. In order to prevent the chip C32 from being installed incorrectly, the chip C32 is further provided with a foolproof part C323. In this embodiment, the foolproof part C323 is arranged on the second face C32b. Specifically, in the direction of the first face C32a pointing to the second face C32b, the foolproof part C323 protrudes from the second face C32b. In some embodiments, the foolproof part C323 can also be arranged in other structures or other forms.

[0207] Further, the chip rack C31 comprises a first constituent part C311 and a second constituent part C312. The first constituent part C311 is provided with a receiving part C3111 and a reinforcing part C3112. The receiving part C3111 is used for receiving the matching part C1117a arranged on the developing cartridge C11 when the chip assembly C300 and the developing cartridge main body are both installed into the image forming device. The reinforcing part C3112 is used for reinforcing the structural strength of the chip rack C31. The second constituent part C312 has elasticity. During the process of installing the chip assembly C300 into the image forming device, the second constituent part C312 can be elastically deformed after being touched by the image forming device. Further, the second constituent part C312 is provided with a clamping part C3121, which is used for interacting with the clamped part 4015 arranged on the image forming device. After the chip assembly C300 is installed in place, the clamping part C3121 is clamped with the clamped part 4015, so that the chip assembly C300 is fixed. When the chip assembly C300 is installed in place, a "click" sound can be heard, which is used for prompting the user.

[0208] Further, the first constituent part C311 is made of a hard material. In order to make the chip C32 and the stylus 403 keep elastic connection and more stable electrical connection, the second constituent part C312 is made of an elastic material with a deformation amount. Specifically, the way of realizing the elastic connection between the chip C32 and the stylus 403 includes: 1. arranging an elastic part between the chip C32 and the chip rack C31; 2. arranging an elastic part between the chip rack C31 and the image forming device; and 3. the chip rack C31 or the chip C32 itself has elasticity.

[0209] In some embodiments, the first constituent part C311 can also be made of a flexible material.

[0210] Further, the chip assembly C300 can be provided with one or more components, when the chip assembly C300 is provided with one component, the elastic member can be placed between the chip C32 and the chip rack C31, the elastic member can also be placed between the chip assembly C300 and the imaging device, or the elastic member is placed in both of the above positions; when the chip assembly C300 is provided with multiple components, the elastic member can be placed between each component.

[0211] Still further, the elastic member can be a sponge, a spring, rubber, felt, etc.

[0212] Further, the chip rack C31 further comprises a chip mounting portion C313 for mounting the chip C32, the chip mounting portion C313 is provided with a first fixing portion C3131, a second fixing portion C3132, a third fixing portion C3135 and a locking portion C3133, in the left-right direction, the first fixing portion C3131 and the second fixing portion C3132 are oppositely arranged with an interval, the first fixing portion C3131 is located to the right of the second fixing portion C3132, and the first fixing portion C3131 and the second fixing portion C3132 are used to prevent the chip C32 from moving in the left-right direction, in the front-back direction, the third fixing portion C3135 and the locking portion C3133 are oppositely arranged with an interval, the third fixing portion C3135 is used to prevent the chip C32 from moving backward, in addition, the locking portion C3133 is also used to lock the chip C32 to prevent the chip C32 from moving forward, when it is necessary to unlock, the user can press the locking portion C3133 along the direction in which the first surface C32a points to the second surface C32b, so as to unlock, and the chip C32 can be taken off; the chip rack C31 further comprises a second avoiding portion C3134 for matching with the fool-proof portion C323, so as to prevent the chip C32 from being installed incorrectly, specifically, the second avoiding portion C3134 is arranged as a groove structure, and the fool-proof portion C323 is arranged as a protrusion structure, further, the second avoiding portion C3134 is located between a first protrusion C3134a and a second protrusion C3134b which are arranged with an interval in the chip mounting portion C313, in the left-right direction, the first protrusion C3134a is located to the right of the second protrusion C3134b, and in the direction from bottom to top, the height of the second protrusion C3134b is lower than the height of the first protrusion C3134a, that is to say, in the direction from bottom to top, the end surface of the second protrusion C3134b is farther away from the end surface of the first fixing portion C3131 than the end surface of the first protrusion C3134a, in this way, the height of the first protrusion C3134a is high, and in the process of mounting the chip C32, the first protrusion C3134a can limit the displacement of the fool-proof portion C323 to the right, so as to avoid the fool-proof portion C323 from passing the first protrusion C3134a due to excessive force during installation, thus the fool-proof portion C323 can be accurately matched with the second avoiding portion C3134, at the same time, the height of the second protrusion C3134b is low, and in the process of mounting the chip C32, the second protrusion C3134b will not block the installation of the chip C32, so that the chip C32 can be smoothly mounted to the chip mounting portion C313 / chip rack C31, in some embodiments, the second avoiding portion C3134 can be arranged as a protrusion structure, and the fool-proof portion C323 can be arranged as a groove structure. In some embodiments, the chip assembly C300 can also be positioned by using other positions of the imaging device (for example, the slide rail 4013, the positioning member 4014, etc.) and the drum cartridge C12.

[0213] Further, the chip assembly C300 is also provided with a first identification part C3113, for example, the first identification part C3113 can be set as a letter, for matching with the developing box body, the imaging device is provided with a second identification part 4012, the second identification part 4012 and the first identification part C3113 are aligned, so that the user can better identify the installation position of the chip assembly C300, and further, the second identification part 4012 is set as the same letter as the first identification part C3113.

[0214] Further, the end cover C1117 at the left end of the shell / first box body C111 is provided with a matching part C1117a, specifically, the matching part C1117a is set as a protrusion extending in the front-rear direction, which is used to simultaneously disassemble the chip assembly C300 and the developing box body, when the chip assembly C300 and the developing box body are both installed into the imaging device, the matching part C1117a is accommodated by the accommodating part C3111 of the chip assembly C300, and the chip assembly C300 and the developing box body are not in contact, that is, the chip assembly C300 and the developing box body are not connected, when disassembling the developing box C11, the chip assembly C300 and the developing box body are in contact, specifically, the chip assembly C300 is driven by the matching part C1117a and is simultaneously taken out of the imaging device with the developing box body, after the developing box C11 is disassembled, the chip assembly C300 can be easily taken off from the developing box body.

[0215] In some embodiments, when the chip assembly C300 and the developing box body are both installed into the imaging device, the chip assembly C300 can be set to be in contact with the developing box body, and the chip assembly C300 can also be set to be in contact or not in contact with the drum cartridge C12.

[0216] Further, the matching part C1117a is provided with a chamfered part C1117b, which is used to smoothly install the chip assembly C300 into place, and the matching part C1117a is also provided with a combining part C1117c, which contacts the chip rack C31 during the disassembly of the developing box C11, and takes out the chip assembly C300 to the imaging device.

[0217] Further, the side where the first identification part C3113 is located is set as a plane, in addition, the door cover of the imaging device is provided with one or more protrusions (not shown), preferably, the door cover is provided with two protrusions, when the chip assembly C300 is not installed into place, the user covers the door cover during the process, the protrusions contact the side where the first identification part C3113 of the chip assembly C300 is located, and as the door cover is gradually closed, the chip assembly C300 is gradually pushed by the door cover and installed into place.

[0218] Furthermore, in this embodiment, the developing cartridge body and the drum cartridge C12 are first combined and then installed together into the imaging device, and then the chip assembly C300 is installed into the imaging device. When the developing cartridge C11 is disassembled, the developing cartridge body can take the chip assembly C300 out with it. In some embodiments, the chip assembly C300 can be installed first, and then the combination of the developing cartridge body and the drum cartridge C12 can be installed.

[0219] Furthermore, the shape of the chip component C300 is preferably a regular quadrilateral for drop protection. In some embodiments, the chip component C300 can also be set to other shapes, such as triangles, circles, etc.

[0220] Furthermore, the chip assembly C300 is designed with the developing cartridge body and the chip assembly C300 as separate units, which simplifies the structure of the developing cartridge C11 and avoids interference between the developing cartridge C11 and the imaging equipment during installation.

[0221] [Example Twelve]

[0222] like Figures 35A-35C , Figure 36A , Figure 36B , Figures 37A-37C , Figures 38A-38C As shown, the difference between this embodiment and embodiment eleven is that the chip assembly C300 is disposed on the end cap C1117 of the developing cartridge body, and the chip assembly C300 is movable relative to the developing cartridge body in the left-right direction.

[0223] The chip holder C31 includes a chip mounting part C313, a first engaging part C3141 and a second engaging part C3142. The chip C32 is mounted on the chip mounting part C313, and the first engaging part C3141 and the second engaging part C3142 are used to engage with the end cover C1117.

[0224] Furthermore, the chip holder C31 also includes a first fixing part C3131, a second fixing part C3132, a third fixing part C3135, and a locking part C3133 disposed in the chip mounting part C313. In the front-back direction, the first fixing part C3131 and the second fixing part C3132 are disposed opposite to each other, and the first fixing part C3131 and the second fixing part C3132 are used to prevent the chip C32 from moving in the front-back direction. In the left-right direction, the third fixing part C3135 and the locking part C3133 are disposed opposite to each other, and the third fixing part C3135 is used to prevent the chip C32 from moving to the left. In addition, the locking part C3133 is also used to lock the chip C32 to prevent the chip C32 from moving to the right.

[0225] Further, the shell / first box C111 and the chip rack C31 are provided with an elastic member C1118. When the developing roller C15 and the photosensitive drum C14 are converted from approaching each other to separating from each other, the developing box body moves left, that is, the chip rack C31 moves right relative to the developing box body, but the chip rack C31 does not move relative to the image forming device, thereby ensuring the stability of the electrical connection between the contact pin 403 and the electrical contact part C321 of the chip C32, and the elastic member C1118 is elastically deformed. When the developing roller C15 and the photosensitive drum C14 are converted from separating from each other to approaching each other, the developing box body moves right and resets under the elastic force of the elastic member C1118.

[0226] Further, the bottom surface C31b of the chip rack C31 is further provided with a rib C3143, which is used to reduce the contact area between the bottom surface C31b of the chip rack C31 and the end cover C1117, thereby making the movement of the chip rack C31 relative to the developing box body more smooth in the left-right direction.

[0227] Further, when the door cover of the image forming device is closed, the protruding part 402 provided on the door cover is close to the contact surface C1117d provided on the end cover C1117. In the embodiment, the contact surface C1117d is provided as an inclined surface which is not parallel to the plane q1 on which the electrical contact part C321 is located. The inclined direction of the inclined surface C1117d is from front to back, and the distance between the inclined surface C1117d and the rotation axis L of the developing roller C15 gradually decreases in the up-down direction. Preferably, when the door cover of the image forming device is closed, the protruding part 402 is not in contact with the contact surface C1117d. Further, the distance s1 between the protruding part 402 (specifically, the point P3 of the protruding part 402 closest to the inclined surface C1117d) and the inclined surface C1117d along the direction d1 perpendicular to the plane q1 on which the electrical contact part C321 is located is not greater than 5 mm, and preferably, the distance s1 between the protruding part 402 and the inclined surface C1117d along the direction d1 perpendicular to the plane q1 on which the electrical contact part C321 is located is not greater than 1 mm. This is to ensure that when the developing box body receives driving force, the developing box body has sufficient activity allowance, and the printing / developing quality of the image forming device is not affected. In addition, the movement amount of the chip rack C31 in the front-back direction can be limited, thereby ensuring that the electrical contact part C321 of the chip C32 and the contact pin 403 will not be disconnected.

[0228] In some embodiments, the contact surface C1117d can also be provided as a non-inclined surface which is parallel to the plane q1 on which the electrical contact part C321 is located.

[0229] In some embodiments, when the door cover of the image forming device is closed, the protruding part 402 is directly in contact with the contact surface C1117d.

[0230] Further, the non-driving end of the developing cartridge body is provided with a separation member C13, the separation member C13 comprises a force receiving member C131 and a first force applying part C1321, the force receiving member C131 comprises a force receiving part C1311 for abutting with a force applying member (not shown) in the image forming device, the first force applying part C1321 is used for abutting with a first abutting part C1211 provided on the drum cartridge C12, specifically, the right extrusion surface C1327R is an inclined surface provided on the first force applying part C1321, the inclined direction is that the distance between the right extrusion surface C1327R and the rotation axis X of the photosensitive drum C14 gradually decreases in the front-rear direction along the direction from left to right, and the distance between the right extrusion surface C1327R and the rotation axis L of the developing roller C15 also gradually decreases in the front-rear direction along the direction from left to right; the first abutting part C1211 is provided with a straight surface C1211a, when the force applying member in the image forming device abuts with the force receiving part C1311 to perform the separation operation of the developing roller C15 and the photosensitive drum C14, the first force applying part C1321 obtains a backward component force and a leftward component force, the leftward component force makes the developing cartridge body move to the left, the first force applying part C1321 starts to contact with the first abutting part C1211, the right extrusion surface C1327R abuts with the straight surface C1211a, so as to make the developing cartridge body move backward, and further realize the separation of the developing roller C15 and the photosensitive drum C14 at the non-driving end.

[0231] Further, the driving end of the developing cartridge body is provided with a second force applying part C1326, specifically, the second force applying part C1326 is provided on the end cover C1117, the second force applying part C1326 is used for abutting with a second abutting part C1212 provided on the drum cartridge C12, when the developing roller C15 and the photosensitive drum C14 are not separated, the second force applying part C1326 does not contact with the second abutting part C1212, specifically, the left extrusion surface C1327L is an inclined surface provided on the second force applying part C1326, the inclined direction is that the distance between the left extrusion surface C1327L and the rotation axis L of the developing roller C15 gradually increases in the front-rear direction along the direction from left to right; when the developing roller C15 and the photosensitive drum C14 are separated, the developing cartridge body moves to the left, so that the left extrusion surface C1327L abuts with the straight surface C1211a provided on the second abutting part C1212, so as to make the developing cartridge body move backward, and further realize the separation of the developing roller C15 and the photosensitive drum C14 at the driving end.

[0232] Further, the developing cartridge body is provided with a left positioning portion C1116L and a right positioning portion C1116R at the driving end and the non-driving end respectively, and the left positioning portion C1116L and the right positioning portion C1116R are used for realizing the installation positioning of the developing cartridge body. Specifically, during the installation of the developing cartridge body to the drum cartridge C12, the left positioning portion C1116L and the right positioning portion C1116R are respectively abutted with the drum cartridge C12, and the developing cartridge body is continuously pressed to the drum cartridge C12, so that the developing cartridge body can be smoothly installed in place.

[0233] Further, the chip C32 / chip assembly C300 is arranged to be movable relative to the developing cartridge body in the left-right direction, and when the developing cartridge body is moved in the left-right direction, the chip C32 / chip assembly C300 is not moved relative to the image forming device, so that the stability of the electrical connection between the chip C32 and the stylus 403 can be ensured.

[0234] Chip assembly C300 Chip assembly C300 Chip assembly C300 Chip assembly C300 Chip assembly C300 Engagement portion C3121 Engagement portion C3121 Chip assembly C300 Engagement portion C3121 Chip assembly C300 Engagement portion C3121 Engagement portion C3121 Chip assembly C300 Chip assembly C300 Chip assembly C300 Chip C32 Chip rack C31 Chip C32 Chip C32 Chip rack C31 Chip C32 Chip rack C31 Chip assembly C300 Chip C32 Engagement portion C3121 Chip assembly C300 Chip assembly C300 Chip assembly C300 Chip assembly C300 First fixing portion C3131 Second fixing portion C3132 First fixing portion C3131 Second fixing portion C3132 First fixing portion C3131 Chip assembly C300 Chip assembly C300 Chip assembly C300 Chip assembly C300 Chip assembly C300 Chip assembly C300 [Embodiment Thirteen]

[0235] In the present embodiment, the structure of the chip assembly C300 is similar to that of the chip assembly C300 in Embodiment Eleven, and the chip assembly C300 is installed into the image forming device PM independently of the developing cartridge body (all the components of the developing cartridge C11 except the chip assembly C300).

[0236] As Figure 39 , Figure 40 , Figure 41A , Figure 41B , Figure 42A , Figure 42BAs shown, the end cap C1117 on the drive end is provided with a first mating part C1117a and a second mating part C1117e. When the developing cartridge body and the drum cartridge C12 are installed on the imaging device PM, the chip assembly C300 is installed towards the imaging device PM. After the chip assembly C300 is installed in place, neither the first mating part C1117a nor the second mating part C1117e contacts the chip assembly C300. During the process of disassembling the developing cartridge body from the imaging device PM, the first mating part C1117a and the second mating part C1117e contact the chip assembly C300 and bring the chip assembly C300 out of the imaging device PM. Specifically, during the disassembly of the developing cartridge body, the first mating part C1117a contacts the receiving part C3111 of the chip holder C31, and the second mating part C1117e is used to prevent the chip assembly C300 from falling off during the process of being brought out, so as to limit the chip assembly C300.

[0237] In some embodiments, after the developing cartridge body and the drum cartridge C12 are installed into the imaging device PM, the chip assembly C300 is installed toward the imaging device PM. After the chip assembly C300 is installed in place, the first mating part C1117a and the second mating part C1117e can both be configured to contact the chip assembly C300.

[0238] In some embodiments, the first mating member C1117a and the second mating member C1117e may also be located at other positions on the drive end, such as the housing / first box C111.

[0239] Furthermore, the chip assembly C300 can not only engage with the locking part 4015 (such as the locking part 4015) provided in the imaging device PM via the locking part C3121, but also... Figure 32C (As shown) Positioning is achieved through engagement, or through interaction with the structure set in the drum housing C12. Specifically, a third mating part C1213 is provided on the drum frame / second housing C121. When the chip assembly C300 is installed in place, the third mating part C1213 engages with the chip assembly C300 to position the chip assembly C300. In addition, during the disassembly of the developing cartridge body, the third mating part C1213 is accommodated by the hollow part C3122 of the chip holder C31. The third mating part C1213 contacts the chip holder C31 / chip assembly C300 to limit the chip assembly and prevent it from falling off during the removal process.

[0240] Further, the part of the first identification part C3113 of the chip assembly C300 on the side abutting against the door cover 412 is provided as a flat surface C3114, when the chip assembly C300 is not installed in place, the door cover 412 will also push the flat surface C3114 during the process of closing the door cover 412 of the image forming device PM, so as to install the chip assembly C300 in place. Specifically, the door cover top 4122 and the door cover bending part 4123 provided on the door cover 412 are used to abut against the flat surface C3114 during the process of closing the door cover 412. In actual use, as shown in Figure 39 the image forming device PM is provided with a plurality of developing box bodies, the developing agent contained in each developing box body is of different color, therefore, the door cover top 4122 and the door cover bending part 4123 abut against the flat surfaces C3114 of the plurality of chip assemblies C300 during the process of closing the door cover 412, so as to install the plurality of chip assemblies C300 in place. Specifically, as shown in Figure 39 along the direction from the A end to the B end of the image forming device PM, the first chip assembly (the chip assembly of the yellow developing box) C300-1 and the second chip assembly (the chip assembly of the red developing box) C300-2 are pushed by the door cover top 4122, and the third chip assembly (the chip assembly of the blue developing box) C300-3 and the fourth chip assembly (the chip assembly of the black developing box) C300-4 are pushed by the door cover bending part 4123.

[0241] Further, in the embodiment, the developing box body cancels the separation member provided on the driving end, and only provides the separation member C13 on the non-driving end. Specifically, the separation member C1313 can be provided on the end cover C1117, or provided on the shell / first box body C111, or provided on the bracket C1113 of the non-driving end.

[0242] In some embodiments, the developing box body cancels the separation member provided on the non-driving end, and only provides the separation member C13 on the driving end.

[0243] As Figure 42BAs shown, the driving force receiving member / driving head C18 is located within the projection range of the driving force transmission portion C51 when viewed in the left-right direction, and the projected profile of the driving force transmission portion C51 is the outermost side of the combination of the driving force receiving member / driving head C18 and the driving force transmission portion C51. In the present embodiment, the separation member C1313 is located within the projection range of the driving force transmission portion C51 when viewed in the left-right direction. The powder outlet blade 153 is provided in the developing cartridge C11 and includes a blade (not shown) and a blade holder 1531 for supporting the blade, the blade holder 1531 being fixedly installed on the housing / first cartridge body C111, the blade being configured to contact the developing roller C15. Specifically, the blade holder 1531 includes a first portion 1531a and a second portion 1531b, the blade being connected to the first portion 1531a, and a bending portion 1531c being formed between the first portion 1531a and the second portion 1531b, the bending portion 1531c being located outside the projection range of the driving force transmission portion C51 when viewed in the left-right direction. In addition, the power output member C143 is provided in the image forming apparatus PM and is configured to contact the power receiving member C125 to supply power to the power receiving member C125. During installation of the developing cartridge C11 to the image forming apparatus PM, the power output member C143 is rotated about the rotation point C143a in the direction indicated by r3 under the action of an external force. After the developing cartridge C11 is installed in place, the power receiving member C125 provided on the bracket C1113 receives power supplied by the image forming apparatus PM. When the power receiving member C125 is electrically connected to the power output member C143, the contact point P4 is located outside the projection range of the driving force transmission portion C51 when viewed in the left-right direction. In this way, the contact point P4 is close to the rotation point C143a, and the stability of the electrical connection between the power receiving member C125 and the power output member C143 can be maintained, and the power receiving member C125 and the power output member C143 can be prevented from being disconnected, thereby ensuring the stability of the power supply from the image forming apparatus PM to the developing cartridge C11, and further ensuring the stability of the operation of the developing cartridge C11 and the image forming / developing / printing quality. In some embodiments, the power output member C143 can also contact the end surface of the power receiving member C125 in the left-right direction.

[0244] [Embodiment Fourteen]

[0245] In the present embodiment, the chip assembly C300 is detachably installed in the image forming apparatus PM independently of the developing cartridge main body (all components of the developing cartridge C11 except the chip assembly C300).

[0246] As Figure 43 , Figure 44A , Figure 44B , Figure 45 and Figure 46As shown, the chip assembly mounting portion 401 in the imaging device PM has a device side wall 401a, a device upper wall 401b and a device lower wall 401c, further, in the left-right direction, the device side wall 401a is located at the left side of the developing cartridge C11, the device upper wall 401b and the device lower wall 401c are oppositely arranged, and the stylus 403 is arranged on the device upper wall 401b.

[0247] Further, the chip rack C31 comprises a first constituent part C311 and a second constituent part C312 connected with each other, and the chip assembly C300 further comprises a chip mounting portion C313 arranged on the first constituent part C311, the chip mounting portion C313 is used for mounting the chip C32, and the chip mounting portion C313 is movable relative to the first constituent part C311. Specifically, the chip mounting portion C313 is provided with a hook portion C3136, the hook portion C3136 is used for interacting with a guide groove C3115 arranged on the first constituent part C311 to limit the movement range of the chip mounting portion C313 and prevent the chip mounting portion C313 from being separated from the first constituent part C311, and an elastic member C3137 is arranged between the chip mounting portion C313 and the first constituent part C311, one end of the elastic member C3137 is connected with the chip mounting portion C313, and the other end of the elastic member C3137 is connected with the first constituent part C311. During the installation of the chip assembly C300 from back to front, the chip mounting portion C313 abuts against the lowest position 401b1 of the device upper wall 401b, so that the elastic member C3137 is elastically deformed, the chip mounting portion C313 moves towards the first constituent part C311, and with the further installation of the chip assembly C300 forward, the chip mounting portion C313 passes through the lowest position 401b1 of the device upper wall 401b, under the action of the elastic force of the elastic member C3137, the chip mounting portion C313 moves away from the first constituent part C311, so that the electrical contact portion C321 of the chip C32 is electrically connected with the stylus 403.

[0248] Further, the second constituent part C312 is provided with an engaging part C3121 for engaging with an engaged part 4015 provided on the lower wall 401c of the device, for positioning the chip assembly C300. Specifically, the engaging part C3121 has an engaging surface C3121a for abutting against an engaged surface 4015a of the engaged part 4015, a first step surface C3121b closer to the developing cartridge body than a second step surface C3121c in the left-right direction, and the first step surface C3121b and the second step surface C3121c are connected by the engaging surface C3121a. The chip assembly C300 is installed to the image forming device PM in the front direction, and when the chip assembly C300 is installed in place, the engaging surface C3121a abuts against the engaged surface 4015, so that the chip assembly C300 is positioned.

[0249] Further, in the process of dismounting the developing cartridge body from the image forming device PM, the chip assembly C300 can be taken out together. Specifically, the chip assembly C300 is in contact with the third fitting part C1213 provided on the drum frame / second cartridge body C121, and is taken out.

[0250] Further, when the chip assembly C300 is not installed in place, in the process of closing the door cover 412 of the image forming device PM, the protrusion 4121 provided on the door cover 412 is in contact with the contact part C3123a of the chip rack C31 / second constituent part C312, and as the door cover 412 is gradually closed, the chip assembly C300 is gradually pushed by the door cover 412 and installed in place.

Claims

1. A chip assembly for cooperating with a developing cartridge removably installed in an image forming apparatus provided with a contact pin and a receiving body, the chip assembly comprising a chip and a chip holder; the chip comprising electric contacts and a storage electrically connected to each other, the storage storing parameter information of the developing cartridge; the chip holder comprising a front portion and a rear portion oppositely arranged, at least the electric contacts being supported by the front portion; the receiving body comprising a front side plate and a rear side plate oppositely arranged, the contact pin being arranged on the same side of the front side plate, the rear side plate having a rear surface facing the front side plate, the front side plate and the rear side plate forming a receiving cavity for receiving the chip holder therebetween; characterized in that when the chip assembly is installed to the image forming apparatus, the contact pin is in contact with the electric contacts, and at least a portion of the chip holder is received by the receiving cavity.

2. The chip assembly of claim 1, wherein, the chip further comprises a substrate and a positioning portion arranged on the substrate, the electric contacts and the storage being arranged on opposite sides of the substrate respectively, the chip holder being provided with a positioning portion for cooperating with the positioning portion.

3. The chip assembly of claim 2, wherein, the chip holder further comprises a middle portion for connecting the front portion and the rear portion, and a hollow portion arranged on the middle portion.

4. The chip assembly of claim 1, wherein, the image forming apparatus further comprises an installation port for allowing installation of the developing cartridge, and a door cover for covering the installation port, the chip assembly further comprises an extension connected to the chip holder, the extension being used for abutting against the door cover.

5. The chip assembly of claim 1, wherein, the chip holder further comprises a chip mounting portion for mounting the chip, the chip mounting portion being provided with a first fixing portion, a second fixing portion, a third fixing portion and a locking portion; the first fixing portion and the second fixing portion are oppositely arranged, and are used for preventing the chip from moving in the arrangement direction of the first fixing portion and the second fixing portion; the third fixing portion and the locking portion are oppositely arranged, the third fixing portion being used for preventing the chip from moving in the direction pointed by the locking portion to the third fixing portion, the locking portion being used for preventing the chip from moving in the direction pointed by the third fixing portion to the locking portion, and locking the chip.

6. The chip assembly of claim 5, wherein, the chip is provided with a fool-proof portion for preventing the chip from being installed incorrectly, the chip holder further comprises a second avoiding portion for matching with the fool-proof portion, the second avoiding portion being located between a first protrusion and a second protrusion arranged on the chip mounting portion, and the height of the second protrusion being lower than the height of the first protrusion.

7. A developing cartridge, characterized by, the developing cartridge comprises a developing cartridge main body and the chip assembly according to any one of claims 1-6, the chip assembly being independent of the developing cartridge main body; the developing cartridge main body comprises a housing and a developing roller rotatably arranged in the housing, the developing roller being rotatable about a rotation axis parallel to the longitudinal direction; in the first direction, the developing cartridge has two opposite ends, and the developing cartridge main body has a middle position between the two ends; when the chip assembly is located at the middle position, the developing cartridge main body is further provided with an engaging assembly for allowing the chip assembly to be arranged on the developing cartridge main body.

8. A developing cartridge, characterized by, the developing cartridge comprises a developing cartridge main body and the chip assembly according to any one of claims 1-6, the developing cartridge main body comprising a housing and a developing roller rotatably arranged in the housing, the developing roller being rotatable about a rotation axis parallel to the longitudinal direction; The chip assembly is independent of the developing cartridge body, and at least during installation of the chip assembly to the image forming device, the chip assembly is movable relative to the developing cartridge body.

9. The process cartridge according to claim 7 or 8, wherein, The chip holder includes a first component part and a second component part, the first component part is provided with a receiving portion, and the second component part is provided with an engaging portion for engaging with an engaged portion in the image forming device; The receiving portion is used for accommodating a matching member provided in the developing cartridge, and when the developing cartridge body is detached from the image forming device, the chip assembly is driven by the matching member to be taken out together with the developing cartridge body.

10. The process cartridge of claim 9 wherein, The developing cartridge body includes an end cover fixedly connected to the housing, and the matching member includes a first matching member and a second matching member provided on the end cover; When the chip assembly is installed in place, neither the first matching member nor the second matching member is in contact with the chip assembly, or when the chip assembly is installed in place, both the first matching member and the second matching member are in contact with the chip assembly; During the process of detaching the developing cartridge body from the image forming device, both the first matching member and the second matching member are in contact with the chip assembly and take the chip assembly out to the outside of the image forming device.

11. The process cartridge of claim 10 wherein, During the process of detaching the developing cartridge body, the first matching member is in contact with the receiving portion, and the second matching member is used to prevent the chip assembly from falling during the process of being taken out.

12. The process cartridge of claim 9 wherein, The second component part is provided with an engaging portion, and the engaging portion has an engaging surface, a first step surface, and a second step surface; The engaging surface is used to abut against an engaged surface of an engaged portion provided on a lower wall of the image forming device; In the longitudinal direction, the first step surface is closer to the developing cartridge body than the second step surface, and the first step surface and the second step surface are connected by the engaging surface.

13. The process cartridge according to claim 7 or 8, wherein The chip assembly is also provided with a first identification part matched with the developing cartridge body, and the image forming device is provided with a second identification part aligned with the first identification part, and the first identification part and the second identification part are provided as the same letter.

14. The process cartridge of claim 13 wherein, The door cover of the image forming device is provided with a protrusion, and when the chip assembly is not installed in place, the protrusion is in contact with one side where the first identification part is located during the process of closing the door cover, and as the door cover is gradually closed, the chip assembly is pushed by the door cover to be installed in place.

15. A process cartridge, characterized by, The processing cartridge includes a drum cartridge and the developing cartridge according to any one of claims 7-14, the drum cartridge includes a second cartridge body and a photosensitive drum, and when the developing cartridge is installed, the developing roller and the photosensitive drum are in contact; The drum cartridge also includes a third matching member provided on the second cartridge body, and when the chip assembly is installed in place, the third matching member is combined with the chip assembly to position the chip assembly, and during the process of detaching the developing cartridge body, the third matching member is in contact with the chip assembly to prevent the chip assembly from falling during the process of being taken out.

Images