Processing box

Abstract

The utility model relates to a process cartridge detachably mounted in a tray of imaging equipment, the tray is provided with a supporting mechanism for supporting the process cartridge, and a first side plate and a second side plate which are arranged at an interval, the process cartridge comprises a first unit shell for storing carbon powder; a developing roller rotatably disposed in the first unit housing and having a first rotation axis extending in a left-right direction; a second unit housing; the photosensitive drum is rotatably arranged in the second unit shell, is provided with a second rotating axis extending in the left-right direction, is arranged opposite to the developing roller and is used for receiving the carbon powder supplied by the developing roller, so that an electrostatic latent image formed on the surface of the photosensitive drum is developed, and the arrangement direction of the developing roller and the photosensitive drum is the front-back direction; and the abutting mechanism is at least provided with a supported assembly, when the processing box is installed on the tray, the supported assembly abuts against the supporting mechanism, and the abutting assembly and / or the supported assembly of the abutting mechanism abut against the side plate of the tray.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electrophotographic imaging, especially to a process cartridge which can be detachably installed in an electrophotographic imaging device. BACKGROUND

[0002] The process cartridge is a consumable which can be detachably installed in an electrophotographic imaging device, and comprises a first unit and a second unit which are combined with each other, wherein the first unit comprises a first unit housing and a developing roller rotatably arranged in the first unit housing, and the second unit comprises a second unit housing and a photosensitive drum rotatably arranged in the second unit housing; when the process cartridge is developing in the imaging device, the developing roller and the photosensitive drum are in contact with each other, and the developing roller supplies toner carried thereby to the photosensitive drum, so that an electrostatic latent image formed on the surface of the photosensitive drum is developed.

[0003] In order to prevent the developing roller from being deformed or the surface of the photosensitive drum from being contaminated due to long-term contact between the developing roller and the photosensitive drum, a separation mechanism is arranged in the process cartridge, and a force applying mechanism is arranged in the imaging device; when the process cartridge is not developing in the imaging device, the force applying mechanism applies a separation force to the separation mechanism, so as to force the first unit housing to rotate relative to the second unit housing, and thus the developing roller and the photosensitive drum are separated from each other.

[0004] When the process cartridge is installed inside the imaging device, the door cover of the imaging device is closed, and a pressing member of the device is pressed downward, so as to stably position the process cartridge at a working position; in order to facilitate installation of the process cartridge, the tray accommodating cavity of the imaging device is generally designed to be larger than the process cartridge; therefore, if the pressing member of the device is aged or the pressing force is insufficient, the process cartridge will move (rotate) in the tray accommodating cavity when the process cartridge is subjected to a thrust in the front-rear direction, which affects the printing quality. UTILITY MODEL CONTENTS

[0005] The utility model further develops the prior art to solve the above technical problems, and the specific scheme is as follows:

[0006] The processing cartridge is detachably installed into a tray of an image forming apparatus, the tray is provided with a support mechanism for supporting the processing cartridge, and a first side plate and a second side plate are provided in a front-rear direction, characterized in that the processing cartridge comprises: a first unit housing for storing toner; a developing roller rotatably provided in the first unit housing for carrying the toner and having a first rotation axis extending in a left-right direction; a second unit housing; a photosensitive drum rotatably provided in the second unit housing, having a second rotation axis extending in the left-right direction, and being arranged opposite to the developing roller for receiving the toner supplied by the developing roller to develop an electrostatic latent image formed on a surface of the photosensitive drum, the developing roller and the photosensitive drum are arranged in the front-rear direction, and a direction intersecting the left-right direction and the front-rear direction is an up-down direction; and an abutting mechanism provided with at least a supported component, the supported component abuts against the support mechanism when the processing cartridge is installed into the tray, and the abutting component of the abutting mechanism and / or the supported component abut against the side plate of the tray.

[0007] In some embodiments, the support mechanism comprises at least a first support, a second support and a third support, and the supported component comprises at least a first supported component, a second supported component and a third supported component, wherein the first supported component is configured to abut against the first support, the second supported component is configured to abut against the second support, and the third supported component is configured to abut against the third support.

[0008] In some embodiments, the first supported component is provided on the first unit housing, and the second supported component and the third supported component are provided on the second unit housing, wherein the first supported component and the second supported component are spaced apart in the front-rear direction, and the second supported component and the third supported component are spaced apart in the left-right direction.

[0009] In some embodiments, the processing cartridge further comprises a first end cover and a second end cover respectively provided at two ends of the first unit housing, and the first unit housing and the second unit housing are connected by the first end cover and the second end cover.

[0010] In some embodiments, the abutting component comprises a first abutting component and a second abutting component provided on the second end cover, and a third abutting component and a fourth abutting component provided on the first end cover, wherein the first abutting component and the second abutting component are spaced apart in the front-rear direction, and the third abutting component and the fourth abutting component are spaced apart in the front-rear direction, the first abutting component and the fourth abutting component are configured to abut against the first side plate, and the second abutting component and the third abutting component are configured to abut against the second side plate.

[0011] In some embodiments, the first abutting component and the second abutting component are respectively a front end face and a rear end face of the second end cover, and the fourth abutting component and the third abutting component are respectively a front end face and a rear end face of the first end cover.

[0012] In some embodiments, the first abutting member and the fourth abutting member simultaneously fit with the inner surface of the first side plate in an interference fit, and the second abutting member and the third abutting member simultaneously fit with the inner surface of the second side plate in an interference fit.

[0013] In some embodiments, a processing cartridge accommodating cavity is formed between the first side plate and the second side plate, and the supported component is arranged such that, in the front-rear direction, the maximum distance between the two oppositely arranged supported members is greater than or equal to the distance between the positions corresponding to the positions of the two supported members in the processing cartridge accommodating cavity, and the supported members abut against the inner wall of the accommodating cavity.

[0014] In some embodiments, the abutting component is elastic.

[0015] In some embodiments, the tray further comprises a third side plate and a fourth side plate arranged in the left-right direction, the supporting mechanism is a supporting platform arranged on at least one of the third side plate and the fourth side plate, and the supported component is a protrusion capable of being supported by the supporting platform. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1A And Figure 1B is a perspective view of a processing cartridge according to an embodiment of the present application.

[0017] Figure 2A is an exploded view of part of the processing cartridge according to the embodiment of the present application.

[0018] Figure 2B is a perspective view of the second end cover and the first unit shell of the processing cartridge according to the embodiment of the present application after being separated.

[0019] Figure 3 is a state diagram of the processing cartridge according to the embodiment of the present application before being installed into the tray of an image forming apparatus.

[0020] Figure 4A is a side view of the processing cartridge according to the embodiment of the present application, in which the developing roller and the photosensitive drum are in contact with each other, and is viewed from left to right after being cut along the AA direction. Figure 3

[0021] Figure 4B is a side view of the processing cartridge according to the embodiment of the present application, in which the developing roller and the photosensitive drum are separated from each other, and is viewed from left to right after being cut along the AA direction. Figure 3

[0022] Figure 5 is a perspective view of a processing cartridge according to an embodiment of the present application.

[0023] Figure 6A ​​is the second end cover of the processing box of the embodiment three of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0024] Figure 6B is the second end cover of the processing box of the embodiment three of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0025] Figure 7A is the second end cover of the processing box of the embodiment three of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0026] Figure 7B is the second end cover of the processing box of the embodiment three of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0027] Figure 8 is the second end cover of the processing box of the embodiment four of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0028] Figure 9A is the second end cover of the processing box of the embodiment four of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0029] Figure 9B is the second end cover of the processing box of the embodiment four of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0030] Figure 10A is the second end cover of the processing box of the embodiment five of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0031] Figure 10B is the second end cover of the processing box of the embodiment five of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0032] Figure 11A is the second end cover of the processing box of the embodiment six of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0033] Figure 11B is the second end cover of the processing box of the embodiment six of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0034] Figure 12 is the second end cover of the processing box of the embodiment seven of the utility model relates to the second unit shell after separation, the non-driving end stereogram of processing box.

[0035] Figure 13A is the perspective view of the processing box when the developing roller and the photosensitive drum are in contact with each other after the processing box is installed to the tray according to the seventh embodiment of the utility model.

[0036] Figure 13B is the perspective view of the processing box when the developing roller and the photosensitive drum are separated from each other after the processing box is installed to the tray according to the seventh embodiment of the utility model.

[0037] Figure 14 is the perspective view of the non-driving end of the processing box when the second end cover and the second support of the processing box are separated from the first unit shell according to the eighth embodiment of the utility model.

[0038] Figure 15A is the perspective view of the non-driving end of the processing box when the developing roller and the photosensitive drum are in contact with each other after the processing box is installed to the tray according to the eighth embodiment of the utility model.

[0039] Figure 15B is the perspective view of the non-driving end of the processing box when the developing roller and the photosensitive drum are separated from each other after the processing box is installed to the tray according to the eighth embodiment of the utility model.

[0040] Figure 16 is the perspective view of the driving end of the processing box when the first end cover, the combined part and the first unit shell of the processing box are separated according to the ninth embodiment of the utility model.

[0041] Figure 17A is the perspective view of the driving end of the processing box when the developing roller and the photosensitive drum are in contact with each other after the processing box is installed to the tray according to the ninth embodiment of the utility model.

[0042] Figure 17B is the perspective view of the driving end of the processing box when the developing roller and the photosensitive drum are separated from each other after the processing box is installed to the tray according to the ninth embodiment of the utility model.

[0043] Figure 18 is the perspective view of the driving end of the processing box when the first end cover, the combined part and the first unit shell of the processing box are separated according to the tenth embodiment of the utility model.

[0044] Figure 19A is the perspective view of the driving end of the processing box when the developing roller and the photosensitive drum are in contact with each other after the processing box is installed to the tray according to the tenth embodiment of the utility model.

[0045] Figure 19B is the perspective view of the driving end of the processing box when the developing roller and the photosensitive drum are separated from each other after the processing box is installed to the tray according to the tenth embodiment of the utility model.

[0046] Figure 20is the first end cover of the processing box, the combined part, the first unit shell of the utility model embodiment eleven, after separating, the perspective view of the driving end of the processing box.

[0047] Figure 21A is the first end cover of the processing box, the combined part, the first unit shell of the utility model embodiment eleven, after the processing box is installed to the tray, the perspective view of the driving end of the processing box when the developing roller and the photosensitive drum contact each other.

[0048] Figure 21B is the first end cover of the processing box, the combined part, the first unit shell of the utility model embodiment eleven, after the processing box is installed to the tray, the perspective view of the driving end of the processing box when the developing roller and the photosensitive drum separate each other.

[0049] Figure 22 is the first end cover of the processing box, the combined part, the first unit shell of the utility model embodiment twelve, after separating, the perspective view of the driving end of the processing box.

[0050] Figure 23A is the first end cover of the processing box, the combined part, the first unit shell of the utility model embodiment twelve, after the processing box is installed to the tray, the perspective view of the driving end of the processing box when the developing roller and the photosensitive drum contact each other.

[0051] Figure 23B is the first end cover of the processing box, the combined part, the first unit shell of the utility model embodiment twelve, after the processing box is installed to the tray, the perspective view of the driving end of the processing box when the developing roller and the photosensitive drum separate each other.

[0052] Figure 24 is the first end cover of the processing box, the combined part, the first unit shell of the utility model embodiment thirteen, after separating, the perspective view of the driving end of the processing box.

[0053] Figure 25A is the first end cover of the processing box, the combined part, the first unit shell of the utility model embodiment thirteen, after the processing box is installed to the tray, the perspective view of the driving end of the processing box when the developing roller and the photosensitive drum contact each other.

[0054] Figure 25B is the first end cover of the processing box, the combined part, the first unit shell of the utility model embodiment thirteen, after the processing box is installed to the tray, the perspective view of the driving end of the processing box when the developing roller and the photosensitive drum separate each other.

[0055] Figure 26 is the perspective view of the processing box of the utility model embodiment fourteen after separating from the tray.

[0056] Figure 27 is the side view of the processing box of the utility model embodiment fourteen from the driving end along the left and right direction.

[0057] Figure 28 is the schematic view of the processing box of the utility model embodiment fifteen after cutting along the cutting surface perpendicular to the left and right direction.

[0058] Figure 29 is a first end cover of the processing cartridge involved in the sixteenth embodiment of the utility model, the combined part, the first unit shell is separated, the perspective view of the driving end of the processing cartridge.

[0059] Figure 30A is the perspective view of the combined part of the processing cartridge involved in the sixteenth embodiment of the utility model.

[0060] Figure 30B is the side view of the combined part of the processing cartridge involved in the sixteenth embodiment of the utility model from the driving end along the left and right direction.

[0061] Figure 31A is the perspective view of the driving end of the processing cartridge after the processing cartridge is installed to the tray, the developing roller and the photosensitive drum are in contact with each other.

[0062] Figure 31B is the perspective view of the driving end of the processing cartridge after the processing cartridge is installed to the tray, the developing roller and the photosensitive drum are separated from each other. DETAILED DESCRIPTION

[0063] The embodiment of the utility model is described in detail below in combination with the drawings.

[0064] Embodiment one

[0065]

Overall structure of processing cartridge

[0066] Figure 1A and Figure 1B is the perspective view of the processing cartridge involved in the first embodiment of the utility model.

[0067] The processing cartridge C includes a first unit 100 and a second unit 200 combined with each other, wherein the first unit 100 includes a first unit shell 1 and a developing roller 11 rotatably arranged in the first unit shell 1, the first unit shell 1 is used to store toner, and the developing roller 11 is used to carry toner, the second unit 200 includes a second unit shell 2 and a photosensitive drum 21 rotatably arranged in the second unit shell 2, the developing roller 11 and the photosensitive drum 21 are oppositely arranged, and when the processing cartridge C works / develops, the photosensitive drum 21 is used to form an electrostatic latent image and is used to receive toner supplied by the developing roller 11, so that the electrostatic latent image is developed.

[0068] In some embodiments, the first unit shell 1 is formed with a powder bin 1a for storing toner, and the second unit shell 2 is formed with a waste powder bin 2a for storing waste toner.

[0069] Further, the processing cartridge C further comprises a driving force receiving assembly 3 for receiving driving force from the image forming device, and the developing roller 11 and the photosensitive drum 21 are driven to rotate by the driving force received by the driving force receiving assembly 3, wherein the developing roller 11 rotates around a first rotation axis L1, and the photosensitive drum 21 rotates around a second rotation axis L2, and the first rotation axis L1 and the second rotation axis L2 are parallel to each other.

[0070] Hereinafter, the extending direction of the first rotation axis L1 / second rotation axis L2 is defined as a left-right direction, the arrangement direction of the first unit housing 1 and the second unit housing 2 is defined as a front-rear direction, or in other words, the arrangement direction of the developing roller 11 and the photosensitive drum 21 is defined as the front-rear direction, and the direction intersecting with the left-right direction and the front-rear direction is defined as an up-down direction, for example, the left-right direction, the front-rear direction and the up-down direction are perpendicular to each other; specifically, along the left-right direction, the side where the driving force receiving assembly 3 is located is the right side / driving side (driving end), and the side where the driving force receiving assembly 3 is not located is the left side / non-driving side (non-driving end), along the front-rear direction, the first unit housing 1 is located at the front side of the second unit housing 2, or in other words, the developing roller 11 is located at the front side of the photosensitive drum 21, along the up-down direction, the side where the developing roller 11 and the photosensitive drum 21 are arranged is the lower side, and the opposite side is the upper side, and the processing cartridge C is detachably installed to the image forming device in a downward posture.

[0071] Further, the processing cartridge C further comprises a first end cover 300 and a second end cover 400 respectively located at both ends of the first unit housing 1, and the first unit housing 1 and the second unit housing 2 are connected through the first end cover 300 and the second end cover 400, wherein the first end cover 300 is arranged at the driving side, the second end cover 400 is arranged at the non-driving side, and the driving force receiving assembly 3 is exposed through the first end cover 300.

[0072] Further, as shown in Figure 2B , the processing cartridge C further comprises an elastic member 16 arranged between the first unit housing 1 and the second unit housing 2, and the elastic member 16 is used to force the developing roller 11 and the photosensitive drum 21 to contact each other.

[0073] As shown in the figure, the driving force receiving assembly 3 comprises at least one of a first driving force receiving member 31 and a second driving force receiving member 32, along the left-right direction, the first driving force receiving member 31 is exposed through a first exposure hole 301 (as Figure 2A shown) in the first end cover 300, and is used to receive driving force from the image forming device to directly or indirectly drive the developing roller 11 to rotate, along the left-right direction, the second driving force receiving member 32 is exposed through a second exposure hole 302 (as Figure 2A shown) in the first end cover 300, and is used to receive driving force from the image forming device to directly or indirectly drive the photosensitive drum 21 to rotate.

[0074] In some embodiments, at least one of the first end cover 300 and the second end cover 400 is integrally formed with the second unit housing 2, in which case the first end cover 300 and the second end cover 400 will become part of the second unit 200, which facilitates simplifying the assembly steps of the process cartridge C.

[0075] In some embodiments, at least one of the first end cover 300 and the second end cover 400 can also be formed separately from the second unit housing 2.

[0076] Whether the first end cover 300 and the second end cover 400 are integrally formed with the second unit housing 2 or not, the technical solutions involved in the present application are applicable.

[0077]

Separation mechanism

[0078] Figure 2A is a partial exploded view of the process cartridge according to Embodiment 1 of the present application; Figure 2B is a perspective view of the second end cover of the process cartridge according to Embodiment 1 of the present application after being separated from the first unit housing; Figure 3 is a state diagram of the process cartridge according to Embodiment 1 of the present application before being installed into the tray of the image forming apparatus; Figure 4A is a side view of the process cartridge according to Embodiment 1 of the present application, in which the developing roller and the photosensitive drum are in contact with each other, along the AA direction, as viewed from left to right after being cut along the AA direction; Figure 3 is a side view of the process cartridge according to Embodiment 1 of the present application, in which the developing roller and the photosensitive drum are separated from each other, along the AA direction, as viewed from left to right after being cut along the AA direction. Figure 4B is a side view of the process cartridge according to Embodiment 1 of the present application, in which the developing roller and the photosensitive drum are separated from each other, along the AA direction, as viewed from left to right after being cut along the AA direction. Figure 3

[0079] As described in the background, when the process cartridge C is not developing in the image forming apparatus, the developing roller 11 and the photosensitive drum 21 are not required to be kept in contact or close to each other (hereinafter, the case of being in contact with each other will be described as an example), but are required to be separated from each other, for which the process cartridge C according to the present application is also provided with a separation mechanism 4, and correspondingly, the image forming apparatus is provided with a force applying mechanism 90 (as shown in Figure 4A and Figure 4B ) for applying a force to the separation mechanism 4.

[0080] As shown in Figure 2A ​As shown, the first driving force receiving member 31 transmits driving force to the developing roller 11 through the driving force transmission assembly 18, the process cartridge C further comprises a first bracket 12 and a cover 13 arranged at the driving side, both of which are fixedly connected with the first unit housing 1, at least a part of the driving force transmission assembly 18 is supported by the first bracket 12, thus the first bracket 12 can also be referred to as a driving bracket, the cover 13 comprises a cover main body 131 and an extension 132 connected with the cover main body 131, a part of the first driving force receiving member 31 passes through the cover 13, specifically, along the left-right direction, the first driving force receiving member 31 passes through the cover main body 131, enters the extension 132, and is exposed outward from the extension 132, the extension 132 enters the first exposure hole 301; at the driving side, along the direction from left to right, the first unit housing 1, the first bracket 12, the cover 13 and the first end cover 300 are arranged in sequence, the first bracket 12 is fixedly installed on the first unit housing 1, and the cover 13 is fixedly installed on the first unit housing 1 or the first bracket 12, and the fixing mode can be any one of screw fixing, clamping, bonding and the like.

[0081] Further, the process cartridge C further comprises a conductive member 14 arranged at the non-driving side and a second bracket 15 for supporting the conductive member 14, the conductive member 14 is used for receiving power from the image forming device and supplying to the developing roller 11 directly or indirectly, thus the second bracket 15 can also be referred to as a conductive bracket, at the non-driving side, along the direction from right to left, the first unit housing 1, the second bracket 15 and the second cover 400 are arranged in sequence, and the second bracket 15 is fixedly installed on the first unit housing 1, and the fixing mode can be any one of screw fixing, clamping, bonding and the like.

[0082] The separation mechanism 4 comprises a first force receiving member 41, a second force receiving member 42, a combination member 43 and a combined member 44, the first force receiving member 41 and the second force receiving member 42 are respectively used for receiving the separation force and the recovery force applied by the force applying member 90, as shown in Figure 2A and Figure 2B As shown, the combination member 43 is arranged on the second end cover 400, comprising a first combination space 431, a second combination space 432 and a limiting portion 433, the first combination space 431 and the second combination space 432 are respectively located on both sides of the limiting portion 433, and the limiting portion 433 is used for limiting the combined member 44 in at least one of the first combination space 431 and the second combination space 432.

[0083] In one embodiment, the restriction portion 433 protrudes from the second end cover 400 to form a protrusion, the protrusion 433 has a first guide surface 434 facing the first engaging space 431, which is one surface forming the first engaging space 431, and a second guide surface 435 facing the second engaging space 432, which is one surface forming the second engaging space 432.

[0084] The first engaging space 431 and the second engaging space 432 only need to be able to allow the engaging member 44 to enter, and their specific shapes are not necessarily limited, at least one of the first engaging space 431 and the second engaging space 432 can be enclosed to form a groove shape, or can not be enclosed.

[0085] Under the action of the separation force, the first unit housing 1 moves relative to the second unit housing 2, and the developing roller 11 also moves relative to the photosensitive drum 21, the developing roller 11 and the photosensitive drum 21 change from the state of mutual contact to the state of mutual separation, the engaging member 43 and the engaging member 44 abut each other, specifically, the engaging member 44 moves along the first guide surface 434 of the engaging member 43 / protrusion 433, and finally passes over the protrusion 433, the engaging member 44 moves from the first engaging space 431 to the second engaging space 432, and finally abuts against the second guide surface 435 of the engaging member 43 / protrusion 433, at this time, whether the force applying member 90 continues to apply the separation force to the first force receiving member 41 or not, the developing roller 11 and the photosensitive drum 21 can be kept in the state of mutual separation, and the engaging member 44 is in a holding state; under the action of the restoring force, the first unit housing 1 moves again relative to the second unit housing 2, and the developing roller 11 also moves again relative to the photosensitive drum 21, the engaging member 44 moves along the second guide surface 435 of the engaging member 43 / protrusion 433, and finally passes over the protrusion 433, the engaging member 44 moves from the second engaging space 432 to the first engaging space 431, the developing roller 11 and the photosensitive drum 21 change from the state of mutual separation to the state of mutual contact, and the state of the engaging member 43 and the engaging member 44 is not necessarily limited, the engaging member 44 is in a non-holding state.

[0086] That is, the engaging member 44 can be switched between the holding state and the non-holding state, in the holding state, the developing roller 11 and the photosensitive drum 21 are kept in the state of mutual separation, and in the non-holding state, the developing roller 11 and the photosensitive drum 21 are in the state of mutual contact.

[0087] In one embodiment, when the developing roller 11 and the photosensitive drum 21 are in the state of mutual contact, the engaging member 43 and the engaging member 44 also abut each other, specifically, the engaging member 44 and the first guide surface 434 of the engaging member 43 / protrusion 433 abut each other, but the engaging member 44 is still in the non-holding state.

[0088] The coupled member 44 extends in the left-right direction, and specifically, the coupled member 44 protrudes from the first unit housing 1 or the second support 15.

[0089] As shown in FIG. 6, when the process cartridge C is developed in the image forming apparatus, the developing roller 11 and the photosensitive drum 21 are in contact with each other, and the coupled member 44 is located in the first coupling space 431. Figure 4A

[0090] As shown in FIG. 7, when the process cartridge C is not developed in the image forming apparatus, the force applying member 90 moves forward, and applies a separating force to the first force receiving member 41, the first unit housing 1 rotates relative to the second unit housing 2 in the direction indicated by r, the developing roller 11 and the photosensitive drum 21 are separated from each other, and at the same time, the coupled member 44 located in the first coupling space 431 passes over the protrusion 433 into the second coupling space 432; subsequently, the force applying member 90 can move backward, and disengage from the first force receiving member 41, the coupled member 44 abuts against one surface of the protrusion 433, and the developing roller 11 and the photosensitive drum 21 are kept in the state of being separated from each other; when the process cartridge C needs to be developed again in the image forming apparatus, the force applying member 90 moves backward, and applies a restoring force to the second force receiving member 42, the first unit housing 1 rotates relative to the second unit housing 2 in the direction opposite to the direction indicated by r, the developing roller 11 and the photosensitive drum 21 are in contact with each other again, and at the same time, the coupled member 44 located in the second coupling space 432 passes over the protrusion 433 into the first coupling space 431, at this time, the coupled member 44 and the other surface of the protrusion 433 / coupled member 43 can abut against each other or can not abut against each other. Figure 4B In some embodiments, when the force applying member 90 applies the separating force to the first force receiving member 41, or when the force applying member 90 applies the restoring force to the second force receiving member 42, the first unit housing 1 can also translate relative to the second unit housing 2.

[0091] In some embodiments, when the coupled member 44 reaches the second coupling space 432, the force applying member 90 can also keep abutting against the first force receiving member 41, at this time, even if the coupled member 44 does not abut against the coupled member 43 / protrusion 433, the developing roller 11 and the photosensitive drum 21 can be kept in the state of being separated from each other; in addition, even if the image forming apparatus is shaken by an external force, and the force applying member 90 disengages from the first force receiving member 41, the developing roller 11 and the photosensitive drum 21 can be stably kept in the state of being separated from each other by the abutment between the coupled member 44 and the coupled member 43 / protrusion 433.

[0092]

[0093] ​​In some embodiments, when the processing cartridge C does not require development, as the first unit housing 1 rotates relative to the second unit housing 2, or as the developing roller 11 separates from the photosensitive drum 21, the elastic member 16 undergoes elastic deformation and accumulates elastic force. When the processing cartridge C needs to be developed again, the force-applying member 90 may not need to apply a restoring force to the second force-receiving member 42, but the elastic member 16 releases the elastic force, causing the coupled member 44 located in the second coupling space 432 to pass over the protrusion 433 to reach the first coupling space 431, thereby forcing the first unit housing 1 to rotate in the opposite direction to the direction shown by r, and the developing roller 11 and the photosensitive drum 21 come into contact with each other again.

[0094] In some embodiments, when the processing cartridge C needs to be developed again, the force-applying member 90 first applies a restoring force to the second force-receiving member 42, so that the bonded member 44 located in the second bonding space 432 passes over the protrusion 433, and then the elastic member 16 releases the elastic force, so that the developing roller 11 and the photosensitive drum 21 can come into contact with each other again.

[0095] In some embodiments, the positions of the coupling member 43 and the coupled member 44 can also be interchanged.

[0096] In the above embodiments, the first force receiver 41 and the second force receiver 42 may also be disposed on the driving side, and the coupling member 43 and the coupled member 44 may be disposed on the non-driving side, such as... Figure 2A As shown, the first force receiver 41 is disposed on the cover 13, and the second force receiver 42 is disposed on the first bracket 12; however, in some embodiments, the first force receiver 41 and the second force receiver 42 may also be disposed on the non-driving side, and the connecting member 43 and the connected member 44 may also be disposed on the driving side. In this case, the connecting member 43 or the connected member 44 is disposed on the first end cover 300. Such a design is beneficial for optimizing the space management and layout of the driving side.

[0097] As can be seen from the above description, during the process of the joined member 44 passing over the protrusion 433 from the first joining space 431 to the second joining space 432, or during the process of the joined member 44 passing over the protrusion 433 from the second joining space 432 to the first joining space 431, the joined member 44 and the protrusion 433 are squeezed against each other, and the first unit housing 1 will move in the left and right direction.

[0098] It should be noted that during the period when the process cartridge C is not developed in the image forming apparatus, the image forming apparatus needs to calibrate the process cartridge C, clean the photosensitive drum 21, etc., during the operation, the second driving force receiving member 32 is still driven to rotate, when the process cartridge C needs to start developing again in the image forming apparatus, the first driving force receiving member 31 starts to receive the driving force output from the corresponding driving force output member in the image forming apparatus to rotate, the force applying member 90 applies the restoring force to the second force receiving member 42, in practice, the driving force output member for applying the driving force to the first driving force receiving member 31 is driven earlier than the time when the force applying member 90 starts to apply the restoring force to the second force receiving member 42, for the first unit housing 1, in the driving force received by the first driving force receiving member 31, the driving force also has a tendency to force the first unit housing 1 to rotate relative to the second unit housing 2 in the direction opposite to the direction indicated by r, that is, the driving force also has a tendency to force the developing roller 11 and the photosensitive drum 21 to contact each other, therefore, before the force applying member 90 starts to apply the restoring force to the second force receiving member 42, the developing roller 11 and the photosensitive drum 21 can have been changed from the state of being separated from each other to the state of contacting each other under the action of the driving force, that is, the developing roller 11 and the photosensitive drum 21 start to contact earlier than the predetermined time, finally resulting in the decline of the image forming quality, in order to enable the developing roller 11 and the photosensitive drum 21 to stably remain in the state of being separated from each other and not be affected by the driving force received by the first driving force receiving member 31, the process cartridge C has the following arrangement:

[0099] At least a part of the driving force when the first driving force receiving member 31 is driven from the stopped state forms the first contact force F1 for forcing the developing roller 11 and the photosensitive drum 21 to contact each other, at least a part of the elastic force released by the elastic member 16 also forms the second contact force F2 for forcing the developing roller 11 and the photosensitive drum 21 to contact each other, the third contact force F3 is for forcing the combined member 44 to pass the protruding portion 433 from the second combined space 432 to the first combined space 431, the first contact force F1, the second contact force F2 and the third contact force F3 should satisfy: F3≥(F1+F2).

[0100] When the first driving force receiving member 31 is driven from the stopped state, the combined member 44 still abuts against the combined member 43 / protruding portion 433.

[0101] In some embodiments, the first guide surface 434 and the second guide surface 435 can also be arranged on the combined member 44.

[0102]

Process cartridge abutting mechanism

[0103] Continue as Figure 3 , Figure 4A and Figure 4BAs shown, the process cartridge C can be detachably installed into a tray 9 of the image forming device, and then the process cartridge C is installed forwardly with the tray 9, which includes a first side plate 9a and a second side plate 9b spaced apart in a front-rear direction, and forms a process cartridge accommodating cavity 9c between the first side plate 9a and the second side plate 9b.

[0104] Further, the tray 9 is further provided with a support mechanism for supporting the process cartridge C, which includes at least a first support 91, a second support 92 and a third support 93, wherein one of the three supports is provided on the first side plate 9a or the second side plate 9b, and the other two supports are provided on the second side plate 9b or the first side plate 9a; in particular, the first support 91 is provided on the first side plate 9a, and the second support 92 and the third support 93 are provided on the second side plate 9b, and the first support 91 and the second support 92 are arranged opposite to each other in the front-rear direction, and the second support 92 and the third support 93 are arranged opposite to each other in the left-right direction, that is, in a plane including the front-rear direction and the left-right direction, the tray 9 is provided with at least three supports spaced apart from each other, so that three corners of the process cartridge C can be supported.

[0105] In some embodiments, the first support 91 and the third support 93 can also be arranged spaced apart in the front-rear direction.

[0106] Each of the supports has two support stages, which are different in height in the up-down direction, such as Figure 3 As shown, the first support 91 has a first high support stage 911 and a first low support stage 912, the second support 92 has a second high support stage 921 and a second low support stage 922, and the third support 93 has a third high support stage 931 and a third low support stage 932.

[0107] Further, the process cartridge C is further provided with an abutting mechanism 5 for abutting against the tray 9 to ensure that the process cartridge C is stably installed in the tray 9, at least a part of the abutting mechanism 5 abuts against the tray 9.

[0108] Continuing as Figure 1A , Figure 1B , Figure 2A , Figure 2B , Figure 3 , Figure 4A and Figure 4BAs shown, the abutting mechanism 5 includes a supported component 51 and an abutting component 52, wherein the supported component 51 is not arranged on the first end cover 300 and the second end cover 400, and the abutting component 52 is arranged on the first end cover 300 and the second end cover 400, and the supported component 51 abuts against the support mechanism when the process cartridge C is installed to the tray 9, and specifically, the abutting component 52 also abuts against the tray 9, that is, of the supported component 51 and the abutting component 52, the abutting mechanism 5 is arranged with at least the supported component 51.

[0109] The supported component 51 includes at least a first supported part 511, a second supported part 512 and a third supported part 513, wherein the first supported part 511 is arranged to abut against the first support part 91 (specifically, the first high support platform 911), the second supported part 512 is arranged to abut against the second support part 92 (specifically, the second high support platform 921), and the third supported part 513 is arranged to abut against the third support part 93 (specifically, the third high support platform 931), so that the process cartridge C can be stably supported in the tray 9.

[0110] When the process cartridge C is installed to the tray 9, the lower portion of the process cartridge C is also supported by the lower portion of the tray 9, and when each supported part abuts against the high support platform of the corresponding support part, it is more conducive to ensure that the process cartridge C is stably installed in the tray 9.

[0111] Further, the supported component 51 is not arranged on the first end cover 300 and the second end cover 400, which can also reduce the size of the first end cover 300 and the second end cover 400, and is conducive to the miniaturization of the process cartridge C; specifically, as shown in Figure 2B The first supported part 511 is arranged on the second bracket 15 or the first unit housing 1, the second supported part 512 and the third supported part 513 are arranged on the second unit housing 2, and along the front-rear direction, the first supported part 511 and the second supported part 512 are arranged at intervals, and along the left-right direction, the second supported part 512 and the third supported part 513 are arranged at intervals.

[0112] In some embodiments, the first supported part 511 can also be arranged on any one of the first bracket 12, the cover 13 and the first unit housing 1, the second supported part 512 and the third supported part 513 are still arranged on the second unit housing 2, and along the front-rear direction, the first supported part 511 and the third supported part 513 are arranged at intervals, and along the left-right direction, the second supported part 512 and the third supported part 513 are arranged at intervals.

[0113] As shown in Figure 3 , Figure 4A and Figure 4B , Figure 3In the cross-sectional view of Fig. 1, the cross-sectional direction AA is parallel to a plane including the front-rear direction and the up-down direction, when the process cartridge C is developing in the image forming apparatus, the developing roller 11 and the photosensitive drum 21 are in contact with each other, the force applying member 90 is positioned between the first force receiving member 41 and the second force receiving member 42, the first supported member 511 is supported by the first high support platform 911, the second supported member 512 is supported by the second high support platform 921, and the third supported member 513 is supported by the third high support platform 931 (not shown in the figure).

[0114] In some embodiments, when the process cartridge C is installed to the tray 9, the abutting assembly 52 also abuts against the side plates (9a, 9b) of the tray 9 to limit the movement of the process cartridge C in the left-right direction. In particular, when the force applying member 90 applies a separation force or a restoring force to the separation mechanism 4, the first unit housing 1 is subjected to the separation force or the restoring force, and the entire process cartridge C is moved in the left-right direction. When the abutting assembly 52 is provided, the possible movement of the process cartridge C in the left-right direction can be eliminated, so that the process cartridge C can be stably positioned in the tray 9 / process cartridge accommodating cavity 9c at all times.

[0115] As described above, the abutting assembly 52 is provided on the first end cover 300 and the second end cover 400. Specifically, the abutting assembly 52 includes the first abutting member 521 and the second abutting member 522 provided on the second end cover 400, and the third abutting member 523 and the fourth abutting member 524 provided on the first end cover 300. In the front-rear direction, the first abutting member 521 and the second abutting member 522 are spaced apart, and the third abutting member 523 and the fourth abutting member 524 are spaced apart. The first abutting member 521 and the fourth abutting member 524 are configured to abut against the first side plate 9a, and the second abutting member 522 and the third abutting member 523 are configured to abut against the second side plate 9b. In this way, when the first unit housing 1 is rotated relative to the second unit housing 2 due to the separation force or the restoring force, the process cartridge C as a whole can still be stably positioned in the tray 9 / process cartridge accommodating cavity 9c, or in other words, the process cartridge C as a whole can still be kept stationary relative to the tray 9 / process cartridge accommodating cavity 9c, through the abutment of the first abutting member 521 and the fourth abutting member 524 against the first side plate 9a, and the abutment of the second abutting member 522 and the third abutting member 523 against the second side plate 9b.

[0116] In some embodiments, the abutting assembly 52 can also not be necessarily provided, but the supported assembly 51 can be arranged such that the maximum distance between the two supported members arranged opposite each other in the front-rear direction is equal to the distance between the positions of the process cartridge accommodating cavity 9c corresponding to the positions at which the two supported members are located. Through the mutual abutment of the supported members against the inner walls of the accommodating cavity 9c (the inner walls of the first side plate 9a and the second side plate 9b), the movement of the process cartridge C in the front-rear direction can also be prevented.

[0117] In some embodiments, the supported member only abuts against the inner wall of the second side plate 9b, and when the force applying member 90 applies the separating force to the separating mechanism 4, the supported member abutting against the inner wall of the second side plate 9b can also prevent the process cartridge C from moving in the front-rear direction.

[0118] In some embodiments, the abutting assembly 52 can also have elasticity.

[0119] According to the above-mentioned embodiments, the maximum distance between the two supported members in the relative arrangement can also be greater than the distance between the positions of the process cartridge accommodating cavity 9c at which the two supported members are located, but at least one of the two supported members is provided to have elasticity, and finally, the movement of the process cartridge C in the front-rear direction can also be inhibited.

[0120] Embodiment Two

[0121] Figure 5 is a perspective view of a process cartridge according to Embodiment Two of the present application.

[0122] Based on the inventive concept of Embodiment One, the present embodiment provides another separating mechanism. For the purpose of understanding, the same numbers are used for the same components and components having the same functions in the present embodiment as in Embodiment One.

[0123] As shown in Figure 5 , the process cartridge C includes a pair of mutually attractive magnets, and under the magnetic force of the magnets, the first unit housing 1 has a tendency to rotate relative to the second unit housing 2, or in other words, the developing roller 11 has a tendency to separate from the photosensitive drum 21 and remain in a separated state, and therefore, any one of the pair of mutually attractive magnets can be regarded as a coupling member 43, and the other can be regarded as a coupled member 44, wherein one magnet (coupling member 43) is arranged on the first unit housing 1, and the other magnet (coupled member 44) is arranged on the second unit housing 2; when the coupling member 43 and the coupled member 44 attract each other to separate the developing roller 11 and the photosensitive drum 21 from each other, the elastic member 16 is elastically deformed.

[0124] When the process cartridge C needs to develop in the image forming apparatus, the force applying member 90 applies a restoring force to any one of the first force receiving member 41 and the second force receiving member 42 in the front-rear direction, which forces the first unit housing 1 to rotate relative to the second unit housing 2 in the opposite direction of the direction indicated by r in Figure 4B , the distance between the coupling member 43 and the coupled member 44 gradually increases, and the magnetic force therebetween gradually decreases, and when the magnetic force decreases to be less than the elastic force released by the elastic member 16, the first unit housing 1 can rotate relative to the second unit housing 2 under the combined action of the restoring force and the elastic force, or can rotate relative to the second unit housing 2 only under the action of the elastic force, and finally, the developing roller 11 and the photosensitive drum 21 change from the separated state to the contact state.

[0125] When the processing cartridge C does not require development in the imaging device, the force-applying member 90 applies a separation force to either the first force receiver 41 or the second force receiver 42 in the front-to-back direction. This separation force forces the first unit housing 1 relative to the second unit housing 2 along... Figure 4B As the component rotates in the direction indicated by r, the distance between the connecting member 43 and the joined member 44 gradually decreases, and the magnetic force between them gradually increases. The elastic member 16 undergoes elastic deformation. When the magnetic force is greater than the elastic force of the elastic member 16, the first unit housing 1 can rotate relative to the second unit housing 2 under the combined action of the separation force and the magnetic force, or it can rotate relative to the second unit housing 2 under the action of the magnetic force alone. Finally, the developing roller 11 and the photosensitive drum 21 change from a state of mutual contact to a state of mutual separation.

[0126] According to the inventive concept of this embodiment, the connecting member 43 and the connected member 44 can be configured as a pair of components that interact through magnetic force. For example, one of the connecting member 43 and the connected member 44 can be configured as an electromagnet and the other as a magnetic component; or, one of the connecting member 43 and the connected member 44 can be configured as a magnet and the other as a magnetic component; or, both the connecting member 43 and the connected member 44 can be configured as electromagnets.

[0127] Similarly, in order to keep the developing roller 11 and the photosensitive drum 21 stably separated from each other, the magnetic force between the connecting member 43 and the connected member 44 should not be less than the sum of F1 and F2. In other words, when the first driving force receiving member 31 is driven from the stopped state, the connected member 44 still attracts the connecting member 43 and stays close to it, and the developing roller 11 and the photosensitive drum 21 do not contact each other.

[0128] Example Three

[0129] Figure 6A This is a perspective view of the non-driving end of the processing box after the second end cover of the processing box is separated from the second unit housing according to Embodiment 3 of this utility model. Figure 6B This is a perspective view of the processing box drive end after the processing box is installed on the tray according to Embodiment 3 of this utility model; Figure 7A This is a perspective view of the non-driving end of the processing box after it is installed on the tray, when the developing roller and the photosensitive drum are in contact with each other, according to Embodiment 3 of this utility model.

[0130] Figure 7B This is a perspective view of the non-drive end of the processing box after it has been installed onto the tray and the developing roller and photosensitive drum have separated. This is according to Embodiment 3 of the present invention.

[0131] like Figure 6AAs shown, the second end cap 400 is separated from the second unit housing 2 so that the structure of the processing box C can be observed more clearly, that is, Figure 6A The structure shown does not imply that the second end cap 400 and the second unit housing 2 need to be set separately; in this embodiment, the same components as in the above embodiments will use the same names and numbers. Unlike the above embodiments, the processing box C involved in this embodiment cooperates with components other than the processing box C to keep the developing roller 11 and the photosensitive drum 21 in a state of separation.

[0132] In this embodiment, the coupled member is configured as a pressed member 17 that can move with the first unit housing 1 relative to the second unit housing 2. The pressed member 17 can switch between the holding state and the non-holding state. The coupled member is a component disposed outside the processing box C. For example, the coupled member is disposed in the main body or tray 9 of the imaging device.

[0133] Generally, the imaging device also includes a main component for carrying the tray 9, which is movably disposed in a mounting cavity in the main component, and the processing box C can be installed into the mounting cavity along with the tray 9.

[0134] like Figure 7A As shown, the connecting component in this embodiment is a movable mechanism 101 disposed in the main assembly. When the processing box C arrives at the predetermined position of the imaging device along with the tray 9, during the closing process of the imaging device's door cover, the movable mechanism 101 moves from top to bottom and presses the processing box C to prevent the processing box C from moving in the vertical direction, thereby reducing the imaging quality. In particular, during the transition between the developing roller 11 and the photosensitive drum 21 in a state of separation and contact, the possible vertical movement of the processing box C can be effectively suppressed by the movable mechanism 101.

[0135] Specifically, the movable mechanism 101 is configured as a pressing member, which includes a mounting part 1011 and a torsion spring 1012. The torsion spring 1012 is mounted on the mounting part 1011. In some embodiments, the pressed member 17 is fixedly disposed relative to the first unit housing 1. The pressed member 17 has a pressed surface 171 and a holding surface 172. When the processing cartridge C is developed in the imaging device, the torsion spring 1012 presses the pressed surface 171 to prevent the processing cartridge C from moving in the vertical direction.

[0136] When the force-applying member 90 applies a separation force to either the first force-receiving member 41 or the second force-receiving member 42, the first unit housing 1 relative to the second unit housing 2 along... Figure 4BWhen the first unit housing 1 rotates in the direction indicated by r, the elastic member 16 is elastically deformed, the developing roller 11 and the photosensitive drum 21 are changed from the state of being in contact with each other to the state of being separated from each other, and at the same time, the pressing member 17 also moves with the first unit housing 1 relative to the second unit housing 2, as shown in Figure 7B As shown, the torsion spring 1012 passes the boundary between the pressing surface 171 and the retaining surface 172, so that the torsion spring 1012 abuts against the retaining surface 172, and thus the developing roller 11 and the photosensitive drum 21 are retained in the state of being separated from each other, and the pressing member 17 is in the retaining state.

[0137] When the force applying member 90 applies the restoring force to any one of the first force receiving member 41 and the second force receiving member 42, the first unit housing 1 rotates in the direction opposite to the direction indicated by r relative to the second unit housing 2, the elastic member 16 releases the elastic force, the developing roller 11 and the photosensitive drum 21 are changed from the state of being separated from each other to the state of being in contact with each other, and the torsion spring 1012 passes the boundary between the pressing surface 171 and the retaining surface 172 again, so that the torsion spring 1012 abuts against the pressing surface 171 again, and the pressing member 17 is in the non-retaining state.

[0138] In some embodiments, the pressing member 17 is formed as a protruding member protruding from the second support 15, and at this time, the pressing member 17 is fixedly arranged relative to the first unit housing 1 through the second support 15.

[0139] In some embodiments, the pressing member 17 can also be formed to protrude from the first unit housing 1.

[0140] In some embodiments, the pressing member 17 can also be movably arranged relative to the first unit housing 1, as long as the pressing member 17 can move with the first unit housing 1 relative to the second unit housing 2.

[0141] Similarly, in order to stably retain the developing roller 11 and the photosensitive drum 21 in the state of being separated from each other, at least a part of the pressing force applied by the pressing member 101 to the pressing member 17 is formed as a retaining force F0 for forcing the developing roller 11 and the photosensitive drum 21 to be retained in the state of being separated from each other, and the first contact force F1, the second contact force F2 and the retaining force F0 should satisfy: F0≥(F1+F2).

[0142] When the first driving force receiving member 31 is driven from the stop state, the pressing member 17 is still pressed by the pressing member 101, and the developing roller 11 and the photosensitive drum 21 are not in contact.

[0143]

Chip assembly

[0144] The chip assembly 6 according to the present application will be described below. Figure 6B The chip assembly 6 according to the present application will be described below.

[0145] The chip assembly 6 comprises a chip seat 61 and a chip 62, the chip 62 is carried by the chip seat 61, wherein the chip 62 comprises a substrate 621 and an electrical contact 622 arranged on the substrate 621, the electrical contact 622 is used to electrically contact with a stylus 1021 (as shown in Figure 10A and Figure 10B shown) in the image forming device, so that the process cartridge C establishes a communication connection with the image forming device; the chip seat 61 comprises a mounting body 610 and a first blocking portion 611, a second blocking portion 612 and a receiving portion 613 arranged on the mounting body 610, the first blocking portion 611 and the second blocking portion 612 are arranged on opposite sides of the receiving portion 613, and at least one of the first blocking portion 611 and the second blocking portion 612 is arranged to be elastically deformed.

[0146] When the chip 62 is installed, one end of the substrate 621 is first installed to the receiving portion 613, and then the other end of the substrate 621 is pressed, so that at least one of the first blocking portion 611 and the second blocking portion 612 is elastically deformed, thereby the chip 62 can be smoothly installed to the receiving portion 613.

[0147] In some embodiments, the chip seat 61 is arranged on at least one of the first end cover 300 and the second unit housing 2 in a non-detachable manner, for example, at least one of the first end cover 300 and the second unit housing 2 is integrally formed with the chip seat 61.

[0148] In some embodiments, the chip seat 61 is arranged on at least one of the first end cover 300 and the second unit housing 2 in a detachable manner, such arrangement is conducive to replacing the chip assembly 6 or upgrading the chip 62.

[0149] In some embodiments, the chip 62 is installed in the receiving portion 613 in a detachable manner, such arrangement is also conducive to realizing the replacement of the chip assembly 6 or upgrading the chip 62.

[0150] As shown in Figure 6B The image forming device is also provided with a columnar body 103 for supporting the process cartridge C, when the process cartridge C is provided with the abutting mechanism 5, the process cartridge C will not have to be supported by the columnar body 103, for this reason, the first end cover 300 or the mounting body 610 is also provided with a avoiding portion 614, when the process cartridge C is installed to a predetermined position of the image forming device, the columnar body 103 enters the avoiding portion 614, that is, the installation process of the process cartridge C will not be interfered by the columnar body 103.

[0151] [First end cover]

[0152] Continue as Figure 6BAs shown, the first end cover 300 is provided with a notch 303, which is communicated with the first exposed hole 301, when the process cartridge C is completed to be assembled, along the rotation direction of the first driving force receiving member 31, a part of the extension 132 is exposed through the notch 303, along the left-right direction, a part of the cover body 131 is also exposed through the notch 303, such arrangement, facilitate to observe whether the components in the process cartridge C are installed in place.

[0153] Example Four

[0154] Figure 8 is the second end cover of the process cartridge according to the fourth embodiment of the utility model is separated from the second unit shell, the non-driving end stereogram of the process cartridge; Figure 9A is the non-driving end stereogram of the process cartridge when the developing roller and the photosensitive drum are in contact with each other after the process cartridge according to the fourth embodiment of the utility model is installed to the tray; Figure 9B is the non-driving end stereogram of the process cartridge when the developing roller and the photosensitive drum are separated from each other after the process cartridge according to the fourth embodiment of the utility model is installed to the tray.

[0155] On the basis of the third embodiment, the combined part is improved in the embodiment, therefore, the same components as the above embodiments will adopt the same number.

[0156] As Figure 8 shown, the combined part in the embodiment includes the pressed part 17 and the movable part 19 which is movable relative to the pressed part 17, and the pressed part 17 can still be converted between the holding state and the non-holding state.

[0157] As Figure 9A shown, when the process cartridge C reaches the predetermined position of the image forming device, or in other words, when the developing roller 11 and the photosensitive drum 21 are in contact with each other, the torsion spring 1012 abuts against the movable part 19 along the up-down direction, so as to ensure that the process cartridge C will not move in the up-down direction. Figure 9B As shown, when the developing roller 11 and the photosensitive drum 21 are separated from each other, the torsion spring 1012 abuts against the pressed part 17 along the up-down direction.

[0158] Figure 9B As Figure 4BAs the developing roller 11 and the photosensitive drum 21 rotate in the direction indicated by r, the elastic element 16 undergoes elastic deformation. During the transition from a state of close proximity to a state of separation between the developing roller 11 and the photosensitive drum 21, the pressed element 17 rotates with the first unit housing 1 relative to the second unit housing 2. Simultaneously, the pressed element 17 triggers the movable element 19 to move back and forth relative to the pressed element 17 until the torsion spring 1012 abuts against the holding surface 172. Thus, through the pressing force applied to the holding surface 172 by the torsion spring 1012, the developing roller 11 and the photosensitive drum 21 are held in a state of separation, and the pressed element 17 is held in a state of retention.

[0159] When the force-applying member 90 applies a restoring force to either the first force-receiving member 41 or the second force-receiving member 42, the first unit housing 1 rotates in the opposite direction to the second unit housing 2 along the direction indicated by r. The elastic member 16 releases its elastic force, and the developing roller 11 and the photosensitive drum 21 change from a state of separation to a state of contact. The movable member 19 is no longer abutted by the pressed member 17. Under the action of the reset member connected to the movable member 19, the movable member 19 moves again in the front-back direction relative to the pressed member 17 until the torsion spring 1012 abuts against the top of the movable member 19 again, and the pressed member 17 is in a non-holding state.

[0160] With the developing roller 11 and the photosensitive drum 21 in contact with each other, compared to Embodiment 3 where the torsion spring 1012 abuts against the pressed surface 171, in this embodiment the torsion spring 1012 abuts against the movable member 19. The processing box C, equipped with the movable member 19, can be more stably positioned at the predetermined position of the imaging device because:

[0161] In Embodiment 3, the pressed surface 171 and the holding surface 172 are arranged adjacent to each other. When the developing roller 11 and the photosensitive drum 21 are in a state of separation, the holding surface 172 is inclined relative to the vertical direction. Specifically, the holding surface 172 faces the rear and upward. In this way, when the torsion spring 1012 abuts against the holding surface 172, it will generate a forward component force, which will force the developing roller 11 to remain in a position away from the photosensitive drum 21.

[0162] In one embodiment, when the developing roller 11 and the photosensitive drum 21 are in contact with each other, the holding surface 172 is parallel to the front-to-back direction; in this case, in order to allow the torsion spring 1012 to smoothly reach the holding surface 172 from the pressed surface 171, the pressed surface 171 is set to be inclined relative to the holding surface 172, such as... Figure 7A As shown, when the pressed surface 171 faces upward and backward, and the torsion spring 1012 abuts against the inclined pressed surface 171, according to the principle of force decomposition, the abutting force of the torsion spring 1012 will be decomposed into a downward component force and a forward component force. The downward component force may not be sufficient to suppress the movement of the processing box C in the vertical direction.

[0163] However, in the present embodiment, the torsion spring 1012 abuts against the movable member 19 when the developing roller 11 and the photosensitive drum 21 are in contact with each other, and the force applied by the torsion spring 1012 to the movable member 19 can be used entirely to suppress the movement of the process cartridge C in the vertical direction when the movable member 19 is set to be unable to move in the vertical direction.

[0164] In some embodiments, the movable member 19 is set to be movable in at least one of the front-rear direction, the left-right direction, and the vertical direction, so as to enhance the flexibility of the movable member 19.

[0165] In some embodiments, the movable member 19 is in contact with the pressed member 17 when the developing roller 11 and the photosensitive drum 21 are in contact with each other, so that the movable member 19 can be triggered by the pressed member 17 immediately once the pressed member 17 rotates with the first unit housing 1 relative to the second unit housing 2, and it is thus favorable to reduce the structural complexity of the process cartridge C.

[0166] In some embodiments, the movable member 19 is spaced apart from the pressed member 17 when the developing roller 11 and the photosensitive drum 21 are in contact with each other, and the movable member 19 is triggered by the pressed member 17 during the rotation of the pressed member 17 with the first unit housing 1 relative to the second unit housing 2, and it is thus favorable to reduce the resistance during the rotation of the pressed member 17.

[0167] It should be understood that the specific position of the movable member 19 in the process cartridge C should not be limited.

[0168] Example Five

[0169] Figure 10A is a non-driving end perspective view of the process cartridge according to the fifth embodiment of the present application, wherein the developing roller and the photosensitive drum are in contact with each other after the process cartridge is installed to the tray; Figure 10B is a non-driving end perspective view of the process cartridge according to the fifth embodiment of the present application, wherein the developing roller and the photosensitive drum are separated from each other after the process cartridge is installed to the tray.

[0170] In the present embodiment, the combination member is set to be at least a part of the fixing mechanism 102 provided in the main assembly, such as Figure 10A and Figure 10BAs shown, the fixing mechanism 102 is configured as a stylus holder, including a stylus holder body 1020 and a stylus 1021 and a connecting groove 1022 disposed on the stylus holder body 1020. The stylus 1021 is used to form an electrical contact with the electrical contact portion 622 of the chip 62. The connecting groove 1022 is recessed inward from the outer surface of the stylus holder body 1020. A part of the stylus holder body 1020 is formed as a connecting groove side plate 1023 adjacent to the connecting groove 1022. The connecting groove 1022 is formed by a plurality of connecting groove side plates 1023. The connecting member is one of the connecting groove side plates 1023.

[0171] The coupled member 44 is still configured to follow the movement of the first unit housing 1 relative to the second unit housing 2 and to switch between a holding state and a non-holding state. Specifically, the coupled member 44 is configured to move in the left and right direction relative to the first unit housing 1. The processing box C also includes a reset member for forcing the coupled member 44 to move away from the first unit housing 1. Preferably, the reset member is configured as an elastic member that abuts against the coupled member 44.

[0172] When the developing roller 11 and the photosensitive drum 21 are in contact with each other, the bonded member 44 is located on one side of one of the bonding groove side plates (hereinafter referred to as "bonding groove side plates") 1023 (for example, the bonded member 44 is located on the side of the bonding groove side plate 1023 facing away from the bonding groove 1022). When the force-applying member 90 applies a separation force to either the first force receiving member 41 or the second force receiving member 42, the first unit housing 1 moves relative to the second unit housing 2 along... Figure 4B As the roller 11 rotates in the direction indicated by r, the elastic element 16 undergoes elastic deformation. During the transition from a state of close proximity to a state of separation between the developing roller 11 and the photosensitive drum 21, the bonded component 44 abuts against the bonding groove side plate 1023 and moves towards the direction of the first unit housing 1. When the bonded component 44 passes over the bonding groove side plate 1023 and reaches the other side of the bonding groove side plate 1023 (for example, the bonded component 44 reaches the side of the bonding groove side plate 1023 facing the bonding groove 1022, i.e., the bonded component 44 enters the bonding groove 1022), and the bonded component 44 abuts against the other side of the bonding groove side plate 1023, the developing roller 11 and the photosensitive drum 21 are held in a state of separation, and the bonded component 44 is held in a held state.

[0173] When the force-applying member 90 applies a restoring force to either the first force-receiving member 41 or the second force-receiving member 42, the first unit housing 1 rotates in the opposite direction to the second unit housing 2 along the direction indicated by r, and the elastic member 16 releases its elastic force. When the bonded member 44 passes over one of the bonding groove side plates 1023 again, the developing roller 11 and the photosensitive drum 21 change from a state of separation to a state of contact. The bonded member 44 is in a non-holding state. At this time, whether the bonded member 44 is in contact with the bonding groove side plate 1023 should not be restricted.

[0174] Similarly, in order to keep the developing roller 11 and the photosensitive drum 21 stably separated from each other, the fourth contact force F4 is used to force the bonded part 44 to move from the side of the bonding groove side plate 1023 facing the bonding groove 1022 across the bonding groove side plate 1023 to the side of the bonding groove side plate 1023 facing away from the bonding groove 1022. The first contact force F1, the second contact force F2 and the fourth contact force F4 should satisfy: F4≥(F1+F2).

[0175] When the first driving force receiving member 31 is driven from the stopped state, the coupled member 44 still abuts against the side of the coupling groove side plate 1023 facing the coupling groove 1022.

[0176] Example 6

[0177] Figure 11A This is a perspective view of the non-driving end of the processing box according to Embodiment 6 of this utility model, when the developing roller and the photosensitive drum are in contact with each other after the processing box is installed on the tray. Figure 11B This is a perspective view of the non-drive end of the processing box after it has been installed onto the tray and the developing roller and photosensitive drum have been separated, according to Embodiment Six of this utility model.

[0178] In this embodiment, the coupled member 44 is configured to follow the movement of the first unit housing 1 relative to the second unit housing 2 and to switch between a holding state and a non-holding state. In one implementation, the coupled member 44 is a protrusion provided on the first unit housing 1, such as... Figure 11A As shown, as the processing cartridge C reaches the processing cartridge receiving cavity 9c, the developing roller 11 and the photosensitive drum 21 are in contact with each other, and at least a portion of the bonded member 44 also enters the processing cartridge receiving cavity 9c.

[0179] When the force-applying member 90 applies a separation force to either the first force-receiving member 41 or the second force-receiving member 42, the first unit housing 1 relative to the second unit housing 2 along... Figure 4BWhen the elastic member 16 is elastically deformed due to the rotation of the first unit housing 1 in the direction indicated by r, the developing roller 11 and the photosensitive drum 21 are converted from the state of being close to each other to the state of being separated from each other, the coupled member 44 rotates relative to the second unit housing 2 around the first rotation axis L1 along with the first unit housing 1, the coupled member 44 reaches above the first side plate 9a, and the coupled member 44 is supported by the upper surface 9a1 of the first side plate 9a, so that the developing roller 11 and the photosensitive drum 21 are kept in the state of being separated from each other, and the coupled member 44 is in the keeping state. In this embodiment, the coupled member is arranged on the tray 9, or in other words, the coupled member is a part of the tray 9.

[0180] When the force applying member 90 applies a restoring force to any one of the first force receiving member 41 and the second force receiving member 42, the first unit housing 1 rotates relative to the second unit housing 2 in the direction opposite to the direction indicated by r, the elastic member 16 releases the elastic force, and under the joint action of the restoring force and the elastic force, the coupled member 44 presses the first side plate 9a, so that at least a part of the coupled member 44 enters the process cartridge accommodating cavity 9c again, and the developing roller 11 and the photosensitive drum 21 are converted from the state of being separated from each other to the state of being in contact with each other, and the coupled member 44 is in the non-keeping state.

[0181] Accordingly, the coupled member 44 can also be arranged at other positions of the first unit 100, for example, the coupled member 44 is arranged on any one of the first support 12 and the cover 13, as long as the coupled member 44 can move relative to the second unit housing 2 along with the rotation of the first unit housing 1.

[0182] In some embodiments, when the developing roller 11 and the photosensitive drum 21 are in the state of being in contact with each other, the coupled member 44 does not contact the first side plate 9a in the front-rear direction, and in the process that the coupled member 44 rotates relative to the second unit housing 2 along with the rotation of the first unit housing 1, the first side plate 9a does not interfere with the movement of the coupled member 44, so that the first unit housing 1 can rotate more smoothly.

[0183] In some embodiments, when the developing roller 11 and the photosensitive drum 21 are in the state of being in contact with each other, the coupled member 44 contacts the first side plate 9a in the front-rear direction, and at this time, the coupled member 44 can be regarded as a part of the abutting mechanism 5, and through the abutment of the coupled member 44 and the first side plate 9a, the process cartridge C can be stably positioned in the process cartridge accommodating cavity 9c, in the process that the developing roller 11 and the photosensitive drum 21 are converted from the state of being in contact with each other to the state of being separated from each other, the coupled member 44 and the first side plate 9a abut each other, so that at least one of the coupled member 44 and the first side plate 9a is elastically deformed, until the coupled member 44 is supported by the upper surface 9a1 of the first side plate 9a.

[0184] In some embodiments, the tray 9 further comprises a cooperating member fixedly or movably arranged therein, for example, the cooperating member is arranged on at least one of the side plates, or the cooperating member is arranged on at least one of the supports, the binding member 44 can also be arranged to make the developing roller 11 and the photosensitive drum 21 in a state of mutual separation by cooperating with the cooperating member; it can be seen that the upper surface 9a1 of the first side plate can also be regarded as a kind of cooperating member, and the cooperating member can be a part of the tray 9 itself or a component additionally mounted on the tray 9.

[0185] Similarly, in order to stably keep the developing roller 11 and the photosensitive drum 21 in a state of mutual separation, the fifth contact force F5 is used to force the elastic deformation of at least one of the binding member 44 and the first side plate 9a until the binding member 44 is no longer supported by the upper surface 9a1 of the first side plate 9a, and the first contact force F1, the second contact force F2 and the fifth contact force F5 should satisfy: F5≥(F1+F2).

[0186] When the first driving force receiving member 31 is driven from the stop state, the binding member 44 is still supported by the upper surface 9a1 of the first side plate.

[0187] Example Seven

[0188] Figure 12 It is the second end cover of the processing box and the second bracket related to the seventh embodiment of the utility model, the perspective view of the non-driving end of the processing box is separated from the first unit shell; Figure 13A It is the perspective view of the processing box related to the seventh embodiment of the utility model, when the developing roller and the photosensitive drum are in contact with each other after the processing box is installed to the tray; Figure 13B It is the perspective view of the processing box related to the seventh embodiment of the utility model, when the developing roller and the photosensitive drum are in contact with each other after the processing box is installed to the tray.

[0189] The binding member 43 in the embodiment is still a part of the tray 9 or arranged on the tray 9, as shown in Figure 12 、 Figure 13A and Figure 13B The tray 9 further comprises a third side plate 9d and a fourth side plate 9e arranged in the left-right direction, the processing box accommodating cavity 9c is also located between the third side plate 9d and the fourth side plate 9e, and the third side plate 9d and the fourth side plate 9e are connected with the first side plate 9a and the second side plate 9b; it can be seen that the tray 9 can also be described as: the tray 9 comprises a plurality of side plates and a processing box accommodating cavity 9c formed by the plurality of side plates, and the plurality of side plates are respectively distributed in front of, rear of, left of and right of the processing box accommodating cavity 9c.

[0190] Specifically, the coupling member 43 in the embodiment is a protruding body 99 protruding from at least one of the side plates towards the process cartridge accommodating cavity 9c. According to the inventive concept of the present application, the protruding body 99 can protrude towards the process cartridge accommodating cavity 9c or protrude away from the process cartridge accommodating cavity 9c. Hereinafter, the case where the protruding body 99 protrudes towards the process cartridge accommodating cavity 9c is taken as an example for description.

[0191] In some embodiments, the coupled member 44 is arranged on the second support 15, as shown in Figure 12 The conductive member 14 and the coupled member 44 are both supported by the support body 151 of the second support 15. The coupled member 44 includes a connecting portion 441 and a coupled portion 442. The connecting portion 441 connects the support body 151 and the coupled portion 442. Preferably, the coupled member 44 is formed as a cantilever extending from the support body 151 and can be switched between a retaining state and a non-retaining state. More preferably, the support body 151, the conductive member 14 and the coupled member 44 are integrally formed. At least a portion of the support body 151 will be made of a conductive material in consideration of the conductivity of the conductive member 14. At this time, the whole formed by the support body 151, the conductive member 14 and the coupled member 44 can be manufactured by means of secondary injection molding.

[0192] Since the second support 15 is fixedly arranged relative to the first unit housing 1, the connecting portion 441 is also fixedly arranged relative to the first unit housing 1. However, in the case where the coupled member 44 is arranged as a cantilever, when an external force is applied to the coupled member 44, the coupled member 44 will be able to move relative to the first unit housing 1.

[0193] In some embodiments, along the left-right direction, the first force receiving member 41 and the second force receiving member 42 are arranged at the driving end, and the coupled member 44 is arranged at the non-driving end. In this way, the structural complexity of the driving end can be reduced. It should be understood that the coupled member 44 can also be arranged at other positions of the first unit housing 1 of the process cartridge C according to design requirements, and the coupling member 43 can also be a part of the side plate, for example, the coupling member 43 is the surface of the side plate facing away from the process cartridge accommodating cavity 9c (for example, the first side plate outer surface 9a2 in Figure 13A ).

[0194] In some embodiments, the coupled portion 442 protrudes from the connecting portion 441, as shown in Figure 13A When the process cartridge C is developing in the image forming device, the developing roller 11 and the photosensitive drum 21 are in a state of mutual contact. The coupled portion 442 is not coupled (specifically, clamped) with the coupling member 43 / protruding body 99, and the coupled member 44 is in a non-retaining state. Figure 13BAs shown, when the process cartridge C is not developed in the image forming device, the force applying member 90 applies a separating force to the first force receiving member 41, the first unit housing 1 rotates relative to the second unit housing 2, the engaging member 44 is engaged with the engaging member 43 / protruding body 99, the developing roller 11 and the photosensitive drum 21 move from the state of approaching each other to the state of separating from each other, at this time, the engaging member 44 is in the holding state, even if the force applying member 90 no longer applies the separating force to the first force receiving member 41, the developing roller 11 and the photosensitive drum 21 can still be kept in the state of separating from each other; when the process cartridge C needs to be developed again in the image forming device, the force applying member 90 applies a restoring force to the second force receiving member 42, the restoring force is transmitted to the engaging member 44 through the first unit housing 1 and the bracket body 151, so that the engaging member 44 is disengaged from the engaging member 43 / protruding body 99, the developing roller 11 and the photosensitive drum 21 return from the state of separating from each other to the state of approaching each other, and the engaging member 44 is in the non-holding state again.

[0195] Embodiment Eight

[0196] Figure 14 is a perspective view of a non-driving end of the process cartridge according to the eighth embodiment of the present application, in which the second end cover and the second bracket of the process cartridge are separated from the first unit housing; Figure 15A is a perspective view of a non-driving end of the process cartridge according to the eighth embodiment of the present application, in which the process cartridge is installed to the tray, and the developing roller and the photosensitive drum are in contact with each other; Figure 15B is a perspective view of a non-driving end of the process cartridge according to the eighth embodiment of the present application, in which the process cartridge is installed to the tray, and the developing roller and the photosensitive drum are separated from each other.

[0197] Different from the seventh embodiment, the engaging member 44 in the present embodiment is provided as an elastic member and can be switched between the holding state and the non-holding state, as shown in Figure 14 , the engaging member 44 still comprises the connecting portion 441 and the engaging portion 442 connected with each other, the connecting portion 441 is used to be connected with any one of the first unit housing 1, the first bracket 12, the cover 13 and the second bracket 15, and the engaging portion 442 is used to be engaged (specifically, abutted) with the engaging member 43 provided on the tray 9, and is used to keep the developing roller 11 and the photosensitive drum 21 in the state of separating from each other.

[0198] As shown in Figure 15A , the engaging member 43 in the present embodiment is still the protruding body 99 protruding from one of the side plates towards the process cartridge accommodating cavity 9c, when the process cartridge C is developed in the image forming device, the developing roller 11 and the photosensitive drum 21 are in the state of contacting each other, and the engaging portion 442 is not engaged with the engaging member 43 / protruding body 99 (specifically, the engaging portion 442 does not abut against a specific surface of the engaging member 43 / protruding body 99).

[0199] AsFigure 15B As shown, when the process cartridge C is not developed in the image forming device, the force applying member 90 applies a separating force to the first force receiving member 41, the first unit housing 1 rotates relative to the second unit housing 2, the engaging portion 442 reaches above the engaging member 43 / protruding body 99, and abuts against the upper surface (one of the specific surfaces) of the engaging member 43 / protruding body 99, the developing roller 11 and the photosensitive drum 21 move from the state of approaching each other to the state of separating from each other, at this time, the engaged portion 44 is in the holding state, even if the force applying member 90 no longer applies the separating force to the first force receiving member 41, the developing roller 11 and the photosensitive drum 21 can still be kept in the state of separating from each other by the friction force between the engaging portion 442 and the specific surface; when the process cartridge C needs to be developed again in the image forming device, the force applying member 90 applies a restoring force to the second force receiving member 42, the restoring force is transmitted to the engaged portion 44 at least through the first unit housing 1, so that the engaged portion 44 is disengaged from the specific surface, the developing roller 11 and the photosensitive drum 21 return from the state of separating from each other to the state of approaching each other, and the engaged portion 44 is in the non-holding state.

[0200] Figure 15A As shown in the middle, when the developing roller 11 and the photosensitive drum 21 are in the state of approaching each other, the engaging portion 442 abuts against the side surface of the engaging member 43 / protruding body 99, in practice, the engaging portion 442 can also not abut against the side surface of the engaging member 43 / protruding body 99, as long as the engaging portion 442 can reach the position of abutting against the specific surface after the force applying member 90 applies the separating force to the first force receiving member 41.

[0201] In some embodiments, the protruding body 99 is the first support member 91.

[0202] In some embodiments, the engaged portion 44 further comprises a reinforcing portion 443 arranged on the engaging portion 442, so as to increase the friction force between the engaging portion 442 and the engaging member 43, for example, the reinforcing portion 443 is a convex portion arranged on the engaging portion 442, or the reinforcing portion 443 is a friction member arranged on the engaging portion 442.

[0203] In some embodiments, the engaged portion 44 is arranged as a torsion spring, based on the inventive concept of the present application, the engaged portion 44 can also be a molded component, for example, the engaged portion 44 is formed by injection molding, die casting or the like, and the material of the engaged portion 44 can also be selected according to design requirements.

[0204] In some embodiments, in the left-right direction, the engaged portion 44 can be arranged at any one of the driving end and the non-driving end, or the engaged portion 44 is arranged at any position between the driving end and the non-driving end.

[0205] Example Nine

[0206] Figure 16 Figure 9 is a perspective view of the first end cover of the process cartridge according to the ninth embodiment of the present application, the combined part and the first unit housing are separated, and the driving end of the process cartridge is shown; Figure 17A Figure 10 is a perspective view of the driving end of the process cartridge according to the ninth embodiment of the present application, the process cartridge is installed to the tray, the developing roller and the photosensitive drum are in contact with each other, and the driving end of the process cartridge is shown; Figure 17B Figure 11 is a perspective view of the driving end of the process cartridge according to the ninth embodiment of the present application, the process cartridge is installed to the tray, the developing roller and the photosensitive drum are separated from each other, and the driving end of the process cartridge is shown.

[0207] In the present embodiment, the combined part 44 is set as a movable part which is movable relative to the first unit housing 1, and is capable of being converted between the holding state and the non-holding state. The combined part 44 still comprises the connecting part 441 and the combined part 442 which are connected to each other. In some embodiments, the connecting part 441 is set in a rotatable manner relative to the first unit housing 1, so that the combined part 442 is rotatable relative to the first unit housing 1 along with the connecting part 441.

[0208] Further, the separating mechanism 4 further comprises a pushing part 45 connected to the combined part 44, and the pushing part 45 is used for pushing the combined part 44 to the holding state. Thus, when the combined part 44 is in the holding state, the combined part 44 can be more stably kept in the holding state under the pushing force applied by the pushing part 45. In the present embodiment, the pushing part 45 is set as a compression spring which is used for abutting against the connecting part 441.

[0209] Further, the second force receiving part 42 is arranged on the combined part 44, and specifically, the second force receiving part 42 is arranged on the connecting part 441. Thus, under the restoring force applied by the force applying part 90 to the second force receiving part 42, the combined part 44 can overcome the pushing force applied by the pushing part 45, and be converted from the holding state to the non-holding state.

[0210] When the process cartridge C is developed in the image forming device, as shown in Figure 17A , the force applying part 90 applies the restoring force to the second force receiving part 42, or the force applying part 90 does not contact the second force receiving part 42, and under the elastic force of the elastic part 16, the combined part 442 is not clamped with the combined part 43 / protruding body 99, the developing roller 11 and the photosensitive drum 21 are in the state of contacting each other, and the combined part 44 is in the non-holding state.

[0211] When the process cartridge C does not need to be developed in the image forming device, as shown in Figure 17B , the force applying part 90 applies the separating force to the first force receiving part 41, and further forces the first unit housing 1 to move relative to the second unit housing 2 (for example, along the direction of the arrow Figure 16(Rotating in the direction shown by r1), the developing roller 11 and the photosensitive drum 21 change from a state of mutual contact to a state of mutual separation. The joined part 44 will move together with the first unit housing 1 until the joined part 442 is engaged with the joined part 43 / protrusion 99 located in the tray 9. The developing roller 11 and the photosensitive drum 21 are in a state of mutual separation. Under the pushing force applied by the pushing member 45, the joined part 44 is held in the holding state.

[0212] When processing cartridge C needs to be re-developed in the imaging device, such as Figure 17A As shown, the force-applying member 90 applies a restoring force greater than the pushing force to the second force-receiving member 42, and is disengaged from the connecting part 442 and the connecting member 43 / protrusion 99. Under the elastic force released by the elastic member 16, or, the restoring force is transmitted to the first unit housing 1, the first unit housing 1 is finally moved again relative to the second unit housing 2 (e.g., along the...). Figure 16 (Rotating in the opposite direction to the direction shown by r1), the developing roller 11 and the photosensitive drum 21 change from a state of separation to a state of contact, and are brought to the non-holding state by the joining part 44.

[0213] In some embodiments, the movement of the first unit housing 1 relative to the second unit housing 2 can also be translational / sliding.

[0214] Example Ten

[0215] Figure 18 This is a perspective view of the driving end of the processing box after the first end cap, the coupled part, and the first unit shell of the processing box involved in Embodiment 10 of this utility model are separated. Figure 19A This is a perspective view of the driving end of the processing cartridge when the developing roller and the photosensitive drum are in contact with each other after the processing cartridge is installed on the tray according to Embodiment 10 of this utility model. Figure 19B This is a perspective view of the processing cartridge drive end after the processing cartridge is installed onto the tray and the developing roller and photosensitive drum are separated, according to Embodiment 10 of this utility model.

[0216] like Figure 18 , Figure 19A and Figure 19B As shown, unlike Embodiment Nine, the movement mode of the joined member 44 in this embodiment is translation / sliding, and the second force receiving member 42 is also provided on the joined member 44. The joining member 43 / protrusion 99 is a flange provided on the tray 9.

[0217] Furthermore, the separation mechanism 4 in this embodiment also includes a guide part 133 for guiding the movement of the joined part 442, thereby making the movement trajectory of the joined part 442 more stable.

[0218] When the processing cartridge C is developed in the imaging device, such asFigure 19A As shown, the force-applying member 90 applies a restoring force to the second force-receiving member 42, or the force-applying member 90 does not contact the second force-receiving member 42. Under the elastic force released by the elastic member 16, the developing roller 11 and the photosensitive drum 21 are in a state of mutual contact, and the bonded member 44 is in a non-holding state.

[0219] When the processing cartridge C does not require development in the imaging device, such as Figure 19B As shown, the force-applying member 90 applies a separation force to the first force-receiving member 41, which transmits the separation force to the first unit housing 1, causing the first unit housing 1 to move relative to the second unit housing 2 (e.g., along...). Figure 16 As shown by r1, the developing roller 11 and the photosensitive drum 21 change from a state of mutual contact to a state of mutual separation. The guide part 133 guides the joined part 442 and forces the joined part 44 to translate / slide. During the translation / sliding process of the joined part 44, the joined part 442 abuts against the joined part 43 / protrusion 99, forcing the pushing member 45 to undergo elastic deformation. As the first unit housing 1 continues to rotate at a certain angle, the joined part 442 disengages from the joined part 43 / protrusion 99. Under the elastic force released by the pushing member 45, the joined part 442 reaches above the joined part 43 / protrusion 99. By restricting the joined part 442 by the joined part 43 / protrusion 99, the state of the first unit housing 1 is maintained, the developing roller 11 and the photosensitive drum 21 are in a state of mutual separation, and the joined part 44 is in a state of being held.

[0220] When the processing cartridge C needs to be redeveloped in the imaging device, the force-applying member 90 applies a restoring force to the second force-receiving member 42, causing the coupling 442 to disengage from the coupling 43 / protrusion 99. Under the action of this restoring force, or under the action of the elastic force released by the elastic member 16, the first unit housing 1 moves again relative to the second unit housing 2 (e.g., along...). Figure 16 (Rotating in the opposite direction of the direction shown by r1), the developing roller 11 and the photosensitive drum 21 return from a state of separation to a state of close proximity, and the coupled part 44 is in a non-holding state.

[0221] Example Eleven

[0222] Figure 20 This is a perspective view of the driving end of the processing box after the first end cap, the coupled part, and the first unit shell of the processing box involved in Embodiment 11 of this utility model are separated. Figure 21A This is a perspective view of the driving end of the processing cartridge when the developing roller and the photosensitive drum are in contact after the processing cartridge is installed on the tray according to Embodiment 11 of this utility model. Figure 21BThe embodiment eleven of the utility model relates to the treatment box is installed to the tray, the developing roller and the photosensitive drum are separated after each other, the stereogram of treatment box drive end.

[0223] In the embodiment, the combined part 44 is still arranged to be movable relative to the first unit housing 1, and the combined part 44 has a holding state and a non-holding state, and the urging part 45 is used for urging the combined part 44 to the holding state.

[0224] As shown in the figure, the combined part 44 is arranged to be rotatable relative to the first unit housing 1, preferably, the rotation axis of the combined part 44 is parallel to the left-right direction, and the combined part 44 can be mounted on any one of the first unit housing 1, the first support 12, the cover 13 and the first end cover 300, the urging part 45 is in contact with the connecting part 441 or the combined part 442, and the urging part 45 can be arranged to be one of a tension spring, a compression spring, a sponge, rubber and the like. Figure 20 In some embodiments, the rotation axis of the combined part 44 can also intersect the left-right direction.

[0225] In some embodiments, the combined part 44 can also cooperate with the upper surface of the other side plate to be kept in the holding state.

[0226] In some embodiments, the movement mode of the combined part 44 can also be arranged to be a translation / slide.

[0227] When the treatment box C is developed in the image forming device, as shown in the figure, the urging part 90 applies a restoring force to the second force receiving part 42, or the urging part 90 is not in contact with the second force receiving part 42, under the action of the elastic force released by the elastic part 16, the developing roller 11 and the photosensitive drum 21 are in a state of mutual contact, and the combined part 44 is in a non-holding state.

[0228] Figure 21A When the treatment box C does not need to be developed in the image forming device, as shown in the figure, the urging part 90 applies a separation force to the first force receiving part 41, the first force receiving part 41 transmits the separation force to the first unit housing 1, and the combined part 44 moves (for example, rotates along the direction indicated by r1 in the figure) with the first unit housing 1 relative to the second unit housing 2, the developing roller 11 and the photosensitive drum 21 are converted from the state of mutual contact to the state of mutual separation, until the combined part 442 reaches above the upper surface 9a1 of the first side plate 9a, under the action of the urging force of the urging part 45, the combined part 442 is kept in abutment with the upper surface 9a1 of the first side plate 9a, the state of the first unit housing 1 is kept, the developing roller 11 and the photosensitive drum 21 are in the state of mutual separation, and the combined part 44 is in the holding state.

[0229] When the treatment box C does not need to be developed in the image forming device, as shown in the figure, the urging part 90 applies a separation force to the first force receiving part 41, the first force receiving part 41 transmits the separation force to the first unit housing 1, and the combined part 44 moves (for example, rotates along the direction indicated by r1 in the figure) with the first unit housing 1 relative to the second unit housing 2, the developing roller 11 and the photosensitive drum 21 are converted from the state of mutual contact to the state of mutual separation, until the combined part 442 reaches above the upper surface 9a1 of the first side plate 9a, under the action of the urging force of the urging part 45, the combined part 442 is kept in abutment with the upper surface 9a1 of the first side plate 9a, the state of the first unit housing 1 is kept, the developing roller 11 and the photosensitive drum 21 are in the state of mutual separation, and the combined part 44 is in the holding state. Figure 21B Figure 16 ​​​

[0230] When the process cartridge C needs to be redeveloped in the image forming apparatus, the force applying member 90 applies a restoring force to the second force receiving member 42, the engaging portion 442 is disengaged from the upper surface 9a1 of the first side plate 9a, and the first unit housing 1 is moved (for example, rotated in the direction opposite to the direction indicated by r1) relative to the second unit housing 2 under the action of the restoring force or the elastic force released by the elastic member 16, and the developing roller 11 and the photosensitive drum 21 are returned from the state of being separated from each other to the state of being close to each other, and the engaging member 44 is in the non-holding state. Figure 16

[0231] Embodiment Twelve

[0232] Figure 22 is a perspective view of the first end cover of the process cartridge, the engaging member, and the first unit housing of the process cartridge according to Embodiment Twelve of the present application, after the first unit housing is separated from the second unit housing; Figure 23A is a perspective view of the process cartridge according to Embodiment Twelve of the present application, when the developing roller and the photosensitive drum are in contact with each other after the process cartridge is installed to the tray; Figure 23B is a perspective view of the process cartridge according to Embodiment Twelve of the present application, when the developing roller and the photosensitive drum are separated from each other after the process cartridge is installed to the tray.

[0233] In this embodiment, the engaging member 44 is configured to be held in the holding state by cooperating with the stylus seat, as shown in FIG. 10, the stylus seat includes a stylus seat body 1020, a stylus 1021 arranged on the stylus seat body 1020, and a clamping protrusion 1024, the clamping protrusion 1024 is used for cooperating with the engaging portion 442, and thus the clamping protrusion 1024 can be regarded as the engaging member 43 in this embodiment. Figure 23A

[0234] Further, as shown in FIG. 10, the image forming apparatus is further provided with a stylus pushing member 1025 for pushing the stylus seat body 1020, under the pushing action of the stylus pushing member 1025, the stylus 1021 can form stable electrical contact with the chip assembly 6 / electrical contact portion 622. Figure 23A As shown in FIG. 9, the engaging member 44 in this embodiment includes a connecting portion 441 and an engaging portion 442, the connecting portion 441 is used for slidably arranging the engaging member 44 relative to the first unit housing 1, in some embodiments, one end of the pushing member 45 is connected with the connecting portion 441, and the other end is connected with the cover 13, the pushing member 45 has a tendency to push the engaging member 44 to the holding state or to the non-holding state.

[0235] Figure 22

[0236] ​​​​Further, the second force receiving member 42 is connected with the combined member 44, and in particular, the second force receiving member 42 is connected with the connecting portion 441, and the processing cartridge C further comprises a limiting member 134 for limiting the moving path of the combined member 44.

[0237] When the processing cartridge C is developed in the image forming device, as shown in Figure 23A , the force applying member 90 applies a restoring force to the second force receiving member 42, or the force applying member 90 is not in contact with the second force receiving member 42, and under the elastic force released by the elastic member 16, the developing roller 11 and the photosensitive drum 21 are in the state of mutual contact, and the combined member 44 is in the non-holding state.

[0238] When the processing cartridge C is not developed in the image forming device, as shown in Figure 23B , the force applying member 90 applies a separating force to the first force receiving member 41, and the first force receiving member 41 transmits the separating force to the first unit housing 1, and the combined member 44 moves (for example, rotates along the direction indicated by r1 in Figure 16 ) with the first unit housing 1 relative to the second unit housing 2, and the developing roller 11 and the photosensitive drum 21 are converted from the state of mutual contact to the state of mutual separation, and the first unit housing 1 is held when the combined portion 442 starts to be clamped with the clamping protrusion 1024, and the developing roller 11 and the photosensitive drum 21 are in the state of mutual separation, and the combined member 44 is in the holding state.

[0239] When the processing cartridge C needs to be developed again in the image forming device, the force applying member 90 applies a restoring force to the second force receiving member 42, and the combined portion 442 is disengaged from the clamping protrusion 1024, and under the action of the restoring force, or under the action of the elastic force released by the elastic member 16, the first unit housing 1 moves (for example, rotates in the opposite direction of the direction indicated by r1 in Figure 16 ) relative to the second unit housing 2 again, and the developing roller 11 and the photosensitive drum 21 are converted from the state of mutual separation to the state of mutual approach again, and the combined member 44 is in the non-holding state.

[0240] In some embodiments, the combined member 44 further comprises a clamping groove 443 arranged on the combined portion 442, and through the mutual cooperation of the clamping groove 443 and the clamping protrusion 1024, the combined member 44 can be more stably held in the holding state.

[0241] In some embodiments, the combined member 43 can also be a rough surface arranged on the stylus seat body 1020, and the combined member 44 is held in the holding state through the friction force between the combined portion 442 and the combined member 43.

[0242] It should be noted that the movement track of the combined part 44 can be effectively maintained by the limiting of the limiting part 134, and the movement mode of the combined part 44 can be sliding or rotating.

[0243] In addition, since the stylus pushing part 1025 applies a downward pushing force to the stylus seat body 1020, the combined part 442 and the combined part 43 can be more closely matched, and the combined part 44 can be more stably maintained in the maintaining state.

[0244] Embodiment thirteen

[0245] Figure 24 is the first end cover of the processing box involved in the embodiment thirteen of the utility model, the protective cover is separated from the first unit shell, the perspective view of the driving end of the processing box is shown; Figure 25A is the perspective view of the driving end of the processing box involved in the embodiment thirteen of the utility model, the processing box is installed to the tray, the developing roller and the photosensitive drum are in contact with each other, and the perspective view of the driving end of the processing box is shown; Figure 25B is the perspective view of the driving end of the processing box involved in the embodiment thirteen of the utility model, the processing box is installed to the tray, the developing roller and the photosensitive drum are separated from each other, and the perspective view of the driving end of the processing box is shown.

[0246] Different from the embodiment twelve, the combined part 44 in the embodiment is no longer an independent part, but is formed integrally with one of the first unit shell 1, the first support 12 and the protective cover 13, so that the combined part 44 is fixedly arranged relative to the first unit shell 1.

[0247] Figure 24 The combined part 44 integrally formed with the protective cover 13 is shown, specifically, the connecting part 441 of the combined part 44 is integrally formed with the protective cover 13, so that the connecting part 441 is fixedly arranged relative to the first unit shell 1, and the combined part 442 is protruded / extended from the connecting part 441, so that the combined part 44 is integrally formed in a cantilever shape, when the combined part 442 is subjected to an external force, the combined part 442 can move relative to the first unit shell 1, and then the combined part 442 and the combined part 43 are matched and disengaged.

[0248] When the processing box C develops in the image forming equipment, as shown in Figure 25A , the force applying part 90 applies a restoring force to the second force receiving part 42, or the force applying part 90 does not contact the second force receiving part 42, under the elastic force released by the elastic part 16, the developing roller 11 and the photosensitive drum 21 are in the state of mutual contact, and the combined part 44 is in the non-maintaining state.

[0249] When the processing box C does not need to develop in the image forming equipment, as shown in Figure 25BAs shown, the force applying member 90 applies a separating force to the first force receiving member 41, which transmits the separating force to the first unit housing 1, and the binding member 44 moves with the first unit housing 1 relative to the second unit housing 2 (e.g., rotates along the direction indicated by r1), and the developing roller 11 and the photosensitive drum 21 are switched from the state of mutual contact to the state of mutual separation, and the state of the first unit housing 1 is maintained when the binding portion 442 starts to be engaged with the engaging protrusion 1024, and the developing roller 11 and the photosensitive drum 21 are in the state of mutual separation, and the binding member 44 is in the maintaining state. Figure 16 As shown, the force applying member 90 applies a separating force to the first force receiving member 41, which transmits the separating force to the first unit housing 1, and the binding member 44 moves with the first unit housing 1 relative to the second unit housing 2 (e.g., rotates along the direction indicated by r1), and the developing roller 11 and the photosensitive drum 21 are switched from the state of mutual contact to the state of mutual separation, and the state of the first unit housing 1 is maintained when the binding portion 442 starts to be engaged with the engaging protrusion 1024, and the developing roller 11 and the photosensitive drum 21 are in the state of mutual separation, and the binding member 44 is in the maintaining state.

[0250] As shown, the force applying member 90 applies a separating force to the first force receiving member 41, which transmits the separating force to the first unit housing 1, and the binding member 44 moves with the first unit housing 1 relative to the second unit housing 2 (e.g., rotates along the direction indicated by r1), and the developing roller 11 and the photosensitive drum 21 are switched from the state of mutual contact to the state of mutual separation, and the state of the first unit housing 1 is maintained when the binding portion 442 starts to be engaged with the engaging protrusion 1024, and the developing roller 11 and the photosensitive drum 21 are in the state of mutual separation, and the binding member 44 is in the maintaining state. Figure 16 As shown, the force applying member 90 applies a separating force to the first force receiving member 41, which transmits the separating force to the first unit housing 1, and the binding member 44 moves with the first unit housing 1 relative to the second unit housing 2 (e.g., rotates along the direction indicated by r1), and the developing roller 11 and the photosensitive drum 21 are switched from the state of mutual contact to the state of mutual separation, and the state of the first unit housing 1 is maintained when the binding portion 442 starts to be engaged with the engaging protrusion 1024, and the developing roller 11 and the photosensitive drum 21 are in the state of mutual separation, and the binding member 44 is in the maintaining state.

[0251] In some embodiments, the binding member 43 can also be a protrusion arranged in the image forming apparatus, and the binding member 44 is maintained in the maintaining state by cooperating with the protrusion.

[0252] Example Fourteen

[0253] Figure 26 is a perspective view of the processing box according to the fourteenth embodiment of the present application after being separated from the tray; Figure 27 is a side view of the processing box according to the fourteenth embodiment of the present application observed from the driving end along the left-right direction.

[0254] Based on the inventive concept of the present application, the abutting mechanism 5 is further optimized in the present embodiment.

[0255] As shown, the support mechanism in the present embodiment is a support table 94 arranged on at least one of the third side plate 9d and the fourth side plate 9e, and correspondingly, the supported assembly 51 is a protrusion that can be supported by the support table 94. Figure 26 Specifically, the protrusion 51 is arranged on one of the first unit housing 1, the first bracket 12, the cover 13, the first end cover 300, the second bracket 15, the second unit housing 2 and other components of the processing box C, as long as the processing box C can be supported through the cooperation of the protrusion 51 and the support table 94.

[0256] In this embodiment, the abutment component 52 is still disposed on the first end cover 300 and the second end cover 400. Unlike the previous embodiment, in this embodiment, the first abutment and the second abutment 522 are the front end face and the rear end face 400b of the second end cover 400, respectively. The fourth abutment 524 and the third abutment 523 are the front end face 300a and the rear end face 300b of the first end cover 300, respectively. When the processing box C is installed on the tray 9, the protrusion 51 is supported by the support platform 94 in the vertical direction. Along the front-to-back direction, the first abutting member and the fourth abutting member 524 simultaneously abut against the inner surface 9a3 of the first side plate, and the first abutting member and the fourth abutting member 524 simultaneously have an interference fit with the inner surface 9a3 of the first side plate. The second abutting member 522 and the third abutting member 523 simultaneously abut against the inner surface 9b3 of the second side plate, and the second abutting member 522 and the third abutting member 523 simultaneously have an interference fit with the inner surface 9b3 of the second side plate. Finally, the processing box C is stably positioned in the processing box receiving cavity 9c, and any possible rotation of the processing box C is suppressed.

[0257] The inner surface 9a3 and the outer surface 9a2 of the first side plate are arranged opposite each other in the front-back direction, with the inner surface 9a3 of the first side plate facing the processing box cavity 9c and the outer surface 9a2 of the first side plate facing away from the processing box cavity 9c; the inner surface 9b3 and the outer surface 9b2 of the second side plate are arranged opposite each other in the front-back direction, with the inner surface 9b3 of the second side plate facing the processing box cavity 9c and the outer surface 9b2 of the second side plate facing away from the processing box cavity 9c.

[0258] When the imaging device door is closed and development is in progress, tray 9 will move downwards, and protrusion 51 will no longer be supported by support platform 94. However, since the first abutment, the second abutment 522, the third abutment 523 and the fourth abutment 524 abut against the inner surface of the corresponding side plate, the processing box C can still be positioned in the processing box receiving cavity 9c, and any possible rotation of the processing box C can still be suppressed.

[0259] Example Fifteen

[0260] Figure 28 This is a schematic diagram of the processing box according to Embodiment 15 of this utility model after being cut along a cross-section perpendicular to the left and right direction.

[0261] Charging roller

[0262] like Figure 28 As shown, based on the inventive concept of the above embodiments and the following embodiments, in this embodiment, the second unit 200 further includes a charging roller 22 rotatably disposed in the second unit housing 2, the charging roller 22 being in contact with the photosensitive drum 21 and used to apply charge to the surface of the photosensitive drum 21.

[0263] Further, the charging roller 22 rotates with the photosensitive drum 21 around a third rotation axis L3, which is parallel to the first rotation axis L1 and the second rotation axis L2.

[0264] Further, in the present embodiment, along the front-rear direction, the third rotation axis L3 is closer to the first rotation axis L1 than the second rotation axis L2.

[0265] Further, on a projection plane perpendicular to the left-right direction, a connecting line X1 is made through the second rotation axis L2 and the third rotation axis L3, a tangent line X2 of the photosensitive drum 21 passes through the connecting line X1, the connecting line X1 passes through the tangent line X2 at a tangent point D1 on the surface of the photosensitive drum 21, along the extension direction of the connecting line X1, the tangent point D1 is located on the side away from the charging roller 22, that is, along the extension direction of the connecting line X1, the tangent point D1 is farther away from the charging roller 22 than the projection point of the second rotation axis L2, the first force receiving member 41, the second force receiving member 42 and the developing roller 11 are all located on the same side of the tangent line X2, further, the extension direction of the connecting line X1 intersects the up-down direction, preferably, along the up-down direction, the first force receiving member 41, the second force receiving member 42 and the developing roller 11 are all located above the tangent line X2.

[0266] Compared with the background art, in the present embodiment, the charging roller 22 is closer to the developing unit 1, which is beneficial to increase the volume of the waste powder bin 2a (as shown in FIG. Figure 1A ) for storing waste carbon powder in the second unit 200, and is also beneficial to the miniaturization design of the second unit 200 / processing cartridge C.

[0267] Example Sixteen

[0268] Figure 29 is a perspective view of the driving end of the processing cartridge after the first end cover, the combined part and the first unit shell of the processing cartridge related to the sixteenth embodiment of the present application are separated; Figure 30A is a perspective view of the combined part of the processing cartridge related to the sixteenth embodiment of the present application; Figure 30B is a side view of the combined part of the processing cartridge related to the sixteenth embodiment of the present application, observed from the driving end along the left-right direction; Figure 31A is a perspective view of the driving end of the processing cartridge after the processing cartridge related to the sixteenth embodiment of the present application is installed to the tray, the developing roller and the photosensitive drum are in contact with each other; Figure 31B is a perspective view of the driving end of the processing cartridge after the processing cartridge related to the sixteenth embodiment of the present application is installed to the tray, the developing roller and the photosensitive drum are separated from each other.

[0269] The combined member 44 in this embodiment is arranged as a movable member movable relative to the first unit housing 1 and capable of being switched between the holding state and the non-holding state. The combined member 44 still comprises the connecting portion 441 and the combined portion 442 connected to each other. The combined member in this embodiment is a component mounted on the second unit housing 2 or a part of the second unit housing 2.

[0270] As shown in Figure 29 , the combined member 44 is arranged rotatably relative to the first unit housing 1. Preferably, the rotation axis of the combined member 44 is parallel to the left-right direction. The combined member 44 can be mounted on any one of the first unit housing 1, the first support 12, the cover 13 and the first end cover 300. Further, the connecting portion 441 is arranged rotatably relative to the first unit housing 1. Thus, the combined portion 442 is rotatable relative to the first unit housing 1 along with the connecting portion 441.

[0271] Further, the first force receiving member 41 and the second force receiving member 42 are arranged on the combined member 44. Specifically, the first force receiving member 41 and the second force receiving member 42 are arranged on the connecting portion 441. Thus, when the force applying member 90 applies the separating force to the first force receiving member 41, the combined member 44 rotates about the rotation axis parallel to the left-right direction from the non-holding state to the holding state. The combined portion 442 is pressed against the component mounted on the second unit housing 2 or the part of the second unit housing 2 to move the first unit housing 1 relative to the second unit housing 2 against the elastic force of the elastic member 16, thereby switching the developing roller 11 and the photosensitive drum 21 from the state of mutual contact to the state of mutual separation. When the force applying member 90 applies the restoring force to the second force receiving member 42, the combined member 44 rotates about the rotation axis parallel to the left-right direction. The combined portion 442 is disengaged from the component arranged on the second unit housing 2 or the part of the second unit housing 2. Under the elastic force of the elastic member 16, the combined member 44 is switched from the holding state to the non-holding state, thereby switching the developing roller 11 and the photosensitive drum 21 from the state of mutual separation to the state of mutual contact.

[0272] In some embodiments, the first force receiving member 41 and the second force receiving member 42 are not arranged oppositely in the front-rear direction in the state of mutual separation or the state of mutual contact of the developing roller 11 and the photosensitive drum 21.

[0273] As shown in Figure 30A and Figure 30BAs shown, further, the coupling portion 442, the first force receiving member 41 and the second force receiving member 42 are arranged as protrusions protruding from the connecting portion 441 in the radial direction, and in the left-right direction, the coupling portion 442 is farther away from the non-driving end than the first force receiving member 41 and the second force receiving member 42, that is, in the left-right direction, the coupling portion 442 is located to the right of the first force receiving member 41 and the second force receiving member 42, so as to avoid interference between the coupling portion 442 and the force applying member 90 during rotation of the coupling member 44; in the direction of rotation of the connecting portion 441, the coupling portion 442, the first force receiving member 41 and the second force receiving member 42 are arranged staggered, specifically, in the left-right direction, the position of the coupling portion 442 is taken as a starting position, and the position of the first force receiving member 41 is taken as an ending position, in the direction of rotation indicated by r2, an arc is formed between the coupling portion 442 and the first force receiving member 41, a straight line in the protruding direction of the second force receiving member 42 intersects the arc, and the second force receiving member 42 is located between the coupling portion 442 and the first force receiving member 41, that is, the first force receiving member 41 is located downstream of the second force receiving member 42, and the coupling portion 442 is located upstream of the second force receiving member 42.

[0274] Further, in the up-down direction, the first force receiving member 41, the second force receiving member 42 and the coupling portion 442 do not protrude from the first unit housing 1, so that when the process cartridge C is accidentally dropped, the first force receiving member 41, the second force receiving member 42 and the coupling portion 442 are protected from being damaged, and in addition, when the process cartridge C is installed, interference with the tray 9 is avoided, so that the process cartridge C is smoothly installed.

[0275] Further, in the present embodiment, a pushing member (not shown) is further provided, which is configured to keep the first force receiving member 41 in a separation force receiving position capable of receiving the separation force applied by the force applying member 90, and it can be understood that the pushing member also keeps the coupling portion 442 in the non-retained state, and in some embodiments, the pushing member is arranged as a torsion spring, which makes the first force receiving member 41 have a tendency to rotate in the opposite direction indicated by r2.

[0276] In some embodiments, the pushing member can also be arranged as one of a tension spring, a compression spring, a sponge, rubber, etc.

[0277] When the process cartridge C is developed in the image forming apparatus, the coupling portion 442 does not abut against the component installed on the second unit housing 2 or a part of the second unit housing 2, under the elastic force of the elastic member 16, the developing roller 11 and the photosensitive drum 21 are in a state of mutual contact, and under the elastic force of the pushing member (torsion spring), the coupling member 44 is in the non-retained state.

[0278] When the process cartridge C does not need to be developed in the image forming apparatus, for example,Figure 31A As shown, the force-applying member 90 applies a separation force to the first force-receiving member 41, causing the joined member 44 to rotate in the direction shown by r2. This causes the second force-receiving member 42 to rotate to a restoring force receiving position capable of receiving the restoring force applied by the force-applying member 90. It also causes the joined portion 442 to rotate and contact a component mounted on the second unit housing 2 or a portion of the second unit housing 2. The pushing member (torsion spring) undergoes elastic deformation. The separation force further forces the first unit housing 1 to move relative to the second unit housing 2 (e.g., rotate in the direction shown by r2). The elastic member 16 undergoes elastic deformation, and the developing roller 11 and the photosensitive drum 21 transition from a state of mutual contact to a state of mutual separation. The joined member 44 moves together with the first unit housing 1 until the joined portion 442 abuts against a component mounted on the second unit housing 2 or a portion of the second unit housing 2. The developing roller 11 and the photosensitive drum 21 then reach a state of mutual separation (e.g., Figure 31B As shown), under the elastic force of the elastic member 16, the coupled part 442 holds the component mounted on the second unit housing 2 or a portion of the second unit housing 2 in contact with it, the coupled part 44 holds it in the holding state, and the developing roller 11 and the photosensitive drum 21 remain in a state of being separated from each other.

[0279] When processing cartridge C needs to be re-developed in the imaging device, such as Figure 31B As shown, the force-applying member 90 applies a restoring force greater than the elastic force to the second force-receiving member 42, causing the joined member 44 to rotate in the opposite direction of the direction indicated by r2. At the same time, under the elastic force released by the pushing member (torsion spring), the first force-receiving member 41 rotates to a separation force receiving position that can receive the separation force applied by the force-applying member 90. It also causes the joined part 442 to rotate and disengage from the component mounted on the second unit housing 2 or from a part of the second unit 2. Under the elastic force released by the elastic member 16, the first unit housing 1 finally moves again relative to the second unit housing 2 (for example, rotates in the opposite direction of the direction indicated by r2). The developing roller 11 and the photosensitive drum 21 change from a state of separation to a state of contact, and the joined part 44 reaches the non-holding state.

[0280] In some embodiments, the axis of rotation of the coupled member 44 may also intersect with the left-right direction.

[0281] In some embodiments, the movement mode of the coupled member 44 can also be set to translation / sliding.

[0282] In some embodiments, the movement of the first unit housing 1 relative to the second unit housing 2 can also be translational / sliding.

[0283] In some embodiments, the first force receiving member 41 and the second force receiving member 42 are movably arranged in the first unit 100, and the first end cover 300 is provided with a guide structure (such as a slanted hole) cooperating with the first force receiving member 41 and the second force receiving member 42, further, in the state that the developing roller 11 and the photosensitive drum 21 are in contact with each other, the first force receiving member 41 is forced by the guide structure to extend to a separation force receiving position capable of receiving the separation force relative to the first unit housing 1 or the first end cover 300, while the second force receiving member 42 is forced by the guide structure to retract relative to the first unit housing 1 or the first end cover 300, in the state that the developing roller 11 and the photosensitive drum 21 are separated from each other, the second force receiving member 42 is forced by the guide structure to extend to a recovery force receiving position capable of receiving the recovery force relative to the first unit housing 1 or the first end cover 300, while the first force receiving member 41 is forced by the guide structure to retract relative to the first unit housing 1 or the first end cover 300.

[0284] In the above-mentioned embodiments 1 to 14 and embodiment 16, the first unit housing 1 is rotated relative to the second unit housing 2 by the application of the recovery force by the force applying member 90 to any one of the first force receiving member 41 and the second force receiving member 42, so that the developing roller 11 and the photosensitive drum 21 are switched from the state of being separated from each other to the state of being in contact with each other, however, the switching process can also be realized by the elastic force released by the elastic member 16, at this time, the force applying member 90 no longer applies the recovery force to any one of the first force receiving member 41 and the second force receiving member 42, or even if the force applying member 90 applies the recovery force to any one of the first force receiving member 41 and the second force receiving member 42, the recovery force no longer forces the first unit housing 1 to rotate relative to the second unit housing 2.

[0285] In some embodiments, after the force applying member 90 applies the separation force to any one of the first force receiving member 41 and the second force receiving member 42, the combined member can also be clamped with the tray 9, finally making the developing roller 11 and the photosensitive drum 21 be kept in the state of being separated from each other.

[0286] In some embodiments, after the force applying member 90 applies the separation force to any one of the first force receiving member 41 and the second force receiving member 42, the combined member and the tray 9 interact with each other through magnetic force, finally making the developing roller 11 and the photosensitive drum 21 be kept in the state of being separated from each other, for example, the combined member is arranged as a magnetic member, at least a part of the tray 9 or a magnetic conductor or a magnetic member is installed in the tray 9, or the combined member is arranged as a magnetic conductor, at least a part of the tray 9 or a magnetic member is installed in the tray 9.

[0287] In summary, in Embodiment Three to Embodiment Fourteen, the coupling member is arranged as a component capable of following the movement of the first unit housing 1 relative to the second unit housing 2, and the developing roller 11 and the photosensitive drum 21 are kept in a state of mutual separation by the coupling member interacting with the coupling member 43 outside the process cartridge C. Since the coupling member 43 is no longer arranged in the process cartridge, the wear of the process cartridge can be reduced during the service life of the process cartridge.

[0288] In summary, in Embodiment Fifteen, the first force receiving member 41 and the second force receiving member 42 are rotatably arranged relative to the first unit housing 1, and the first force receiving member 41 or the second force receiving member 42 is rotated to the separation force receiving position for receiving the separation force or the return force receiving position for receiving the return force only when it is needed to receive the separation force or the return force. In the up-down direction, the first force receiving member 41 and the second force receiving member 42 do not protrude from the first unit housing 1 or the second unit housing 2, and thus the first force receiving member 41 and the second force receiving member 42 will not be damaged even if the process cartridge is accidentally dropped during use.

[0289] In summary, compared with the background art, in Embodiment Sixteen, the charging roller 22 is closer to the developing unit 1 in the direction perpendicular to the left-right direction when viewed in the left-right direction, and this design is conducive to increasing the volume of the waste powder reservoir in the second unit 200 for storing waste toner and conducive to the miniaturization design of the second unit 200 / process cartridge C.

Claims

1. A process cartridge detachably mountable to a tray of an image forming apparatus, the tray being provided with a support mechanism for supporting the process cartridge, and a first side plate and a second side plate spaced apart in a front-rear direction, characterized by, The processing cartridge comprises: a first unit housing for storing toner; a developing roller rotatably arranged in the first unit housing for carrying toner and having a first rotation axis extending in a left-right direction; a second unit housing; a photosensitive drum rotatably arranged in the second unit housing and having a second rotation axis extending in the left-right direction, and arranged opposite to the developing roller for receiving toner supplied by the developing roller to develop an electrostatic latent image formed on a surface of the photosensitive drum, the developing roller and the photosensitive drum being arranged in a front-rear direction; and an abutting mechanism provided with at least a supported component abutting against the support mechanism when the processing cartridge is mounted to the tray, and the abutting component of the abutting mechanism and / or the supported component abutting against a side plate of the tray.

2. The process cartridge according to claim 1, wherein, The support mechanism comprises at least a first support, a second support and a third support, and the supported component comprises at least a first supported component, a second supported component and a third supported component, wherein the first supported component is arranged to abut against the first support, the second supported component is arranged to abut against the second support, and the third supported component is arranged to abut against the third support.

3. The process cartridge of claim 2 wherein, The first supported component is arranged on the first unit housing, and the second supported component and the third supported component are arranged on the second unit housing, the first supported component and the second supported component are arranged in a spaced manner in the front-rear direction, and the second supported component and the third supported component are arranged in a spaced manner in the left-right direction.

4. The process cartridge of claim 1, wherein, The processing cartridge further comprises a first end cover and a second end cover arranged at two ends of the first unit housing respectively, and the first unit housing and the second unit housing are connected through the first end cover and the second end cover.

5. The process cartridge of claim 4 wherein, The abutting component comprises a first abutting component and a second abutting component arranged on the second end cover, and a third abutting component and a fourth abutting component arranged on the first end cover, the first abutting component and the second abutting component are arranged in a spaced manner in the front-rear direction, and the third abutting component and the fourth abutting component are arranged in a spaced manner in the front-rear direction, the first abutting component and the fourth abutting component are arranged to abut against the first side plate, and the second abutting component and the third abutting component are arranged to abut against the second side plate.

6. The process cartridge of claim 5 wherein, The first abutting component and the second abutting component are respectively a front end face and a rear end face of the second end cover, and the fourth abutting component and the third abutting component are respectively a front end face and a rear end face of the first end cover.

7. The process cartridge of claim 6 wherein, The first abutting component and the fourth abutting component are in interference fit with an inner surface of the first side plate at the same time, and the second abutting component and the third abutting component are in interference fit with an inner surface of the second side plate at the same time.

8. The process cartridge of claim 1, wherein, The first side plate and the second side plate form a processing cartridge accommodating cavity therebetween, and the supported component is arranged such that a maximum distance between two supported components arranged opposite to each other in the front-rear direction is greater than or equal to a distance between positions corresponding to positions where the two supported components are located in the processing cartridge accommodating cavity, and the supported components abut against inner walls of the accommodating cavity.

9. The process cartridge of claim 1, wherein, The abutting component is elastic.

10. The process cartridge of claim 1, wherein, The tray further comprises a third side plate and a fourth side plate arranged in a spaced manner in the left-right direction, the support mechanism is a support platform arranged on at least one of the third side plate and the fourth side plate, and the supported component is a protrusion capable of being supported by the support platform.

Images