Developing cartridge

Abstract

The utility model relates to a developing box suitable for an imaging device provided with a contact pin, which comprises a shell, and the shell comprises a reinforcing rib formed by extending downwards from the outer surface of the shell and a protective plate covering the reinforcing rib; a developing roller rotatably disposed in the housing and having a rotation axis extending in a first direction; a chip assembly having an electrical contact for electrically contacting the contact pin, the electrical contact being immovable relative to the housing; when the developing box directly or indirectly receives external force, the electric contact part moves along with the shell to realize electric contact between the electric contact part and the contact pin, and the design is beneficial to simplifying the structure of the chip assembly.

Description

TECHNICAL FIELD

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

[0002] A developing box for an electrophotographic imaging device (hereinafter referred to as "imaging device") is known, in which a developing roller, a powder feeding roller, a stirring frame and other rotating members are rotatably arranged. When the developing box is developing in the imaging device, a driving force receiving member in the developing box receives a driving force from the imaging device to drive the developing roller, the powder feeding roller and the stirring frame to rotate. The stirring frame is used to stir the toner stored in the developing box, and the powder feeding roller is used to transport the toner to the developing roller. The developing roller is used to carry the toner and supply it to the photosensitive drum on which an electrostatic latent image is formed, so that the electrostatic latent image on the photosensitive drum is developed.

[0003] In order to enable the imaging device to know whether the developing box is installed, the model, the service life and other information, the developing box is further provided with a chip and a movable chip seat. The chip is supported by the chip seat. When the developing box is installed in the imaging device, the chip is in electrical contact with a stylus in the imaging device to establish a communication connection, so that the imaging device can know the information of the developing box. The movable chip seat facilitates avoiding obstacles in the imaging device during installation of the developing box. However, when the developing box is in the installed state, the relative position of the chip and the stylus may change, or the chip seat is misaligned during assembly of the developing box, which eventually leads to inaccurate docking of the chip and the stylus. On the other hand, the movable chip seat structure is complex, and the assembly process is also complex. SUMMARY

[0004] The present utility model further develops the prior art to solve at least one of the above technical problems, in particular:

[0005] The developing box is suitable for an imaging device provided with a stylus, and the developing box comprises:

[0006] The shell comprises a reinforcing rib formed by extending downward from the outer surface of the shell and a protection plate covering the reinforcing rib;

[0007] The developing roller is rotatably arranged in the shell and has a rotation axis extending in a first direction;

[0008] The chip assembly has an electrical contact portion for electrical contact with the stylus, and the electrical contact portion is immovable relative to the shell;

[0009] When the developing box directly or indirectly receives an external force, the electrical contact portion moves with the shell to achieve electrical contact between the electrical contact portion and the stylus.

[0010] In some embodiments, the developing cartridge is provided with a rotating support portion, when the developing cartridge receives a lifting force from itself or an external source, the electrical contact portion forms electrical contact with the stylus as the developing cartridge as a whole rotates around the rotating support portion.

[0011] In some embodiments, the chip assembly further comprises a chip holder, the chip holder comprises a first component and a second component, the first component is located above the second component along a third direction intersecting the first direction, the electrical contact portion is supported by the first component, and the first component is fixedly arranged relative to the housing, the second component is movably arranged relative to the housing, and the lifting force is generated when the second component moves relative to the housing.

[0012] In some embodiments, the developing cartridge further comprises a driving force receiving member for receiving a driving force from the image forming device to drive the developing roller to rotate, a plane passing through the rotation axis of the driving force receiving member along a second direction parallel to the first direction and the third direction is plane M, and the plane M passes through the first component.

[0013] In some embodiments, the developing cartridge further comprises a driving force receiving member for receiving a driving force from the image forming device to drive the developing roller to rotate, a plane passing through the rotation axis of the driving force receiving member along a second direction parallel to the first direction and the third direction is plane M, a plane passing through the rotation axis of the developing roller is plane N, the plane N is located below the plane M, and a plane passing through the rotation axis of the developing roller and the rotation axis of the driving force receiving member is plane T.

[0014] A first clamping region U1 is formed between the plane T and the plane N, and the electrical contact portion is located in the first clamping region U1.

[0015] A second clamping region U2 is formed between the plane T and the plane M, and at least a portion of the first component is located in the second clamping region U2.

[0016] In some embodiments, the developing cartridge further comprises a left guide protrusion and a right guide protrusion, the left guide protrusion and the right guide protrusion are respectively located at two ends of the housing along the first direction, at least one of the left guide protrusion and the right guide protrusion guides the developing cartridge during installation of the developing cartridge, and the rotating support portion is at least one of the left guide protrusion and the right guide protrusion; along the second direction, the developing roller is located in front, the front of the developing cartridge is supported by the left guide protrusion and the right guide protrusion, and the rear of the developing cartridge is supported by a supported portion in the developing cartridge.

[0017] Behind the electrical contact portion along the first direction, one of the two ends of the developing cartridge is supported and the other end is not supported, and the supported end and the electrical contact portion are oppositely arranged along the first direction.

[0018] In some embodiments, the imaging device comprises a mounting cavity for accommodating the developing cartridge and a guide rail disposed adjacent to the mounting cavity, the guide rail being configured to guide the developing cartridge during installation of the developing cartridge to the imaging device; the lifting force is generated by the guide rail; the developing cartridge further comprises a locked portion configured to cooperate with an external locking member to lock the developing cartridge, the locking member being spaced apart from the locked portion in a third direction intersecting the first direction when the developing cartridge is installed.

[0019] In some embodiments, the developing cartridge is configured to rotate by an angle in a range of 0°-20° under the external force.

[0020] In some embodiments, the developing cartridge further comprises a lifting member configured to receive the external force, the lifting member comprising a reinforcing portion and a forced pushing portion connected to each other, the forced pushing portion having a forced pushing surface configured to receive the external force, the reinforcing portion having an outer surface configured to connect to the forced pushing surface, a first included angle a1 being formed between the outer surface and the forced pushing surface, 90°≤a1≤100°.

[0021] In some embodiments, the developing cartridge comprises a driving force receiving member configured to receive a driving force from the imaging device to drive the developing roller to rotate, the developing cartridge further comprises an imaginary plane passing through an axis of rotation of the developing roller and an axis of rotation of the driving force receiving member, the chip of the chip assembly is located at least partially below the imaginary plane.

[0022] In some embodiments, the chip holder comprises a fixed support frame, an extendable support rod, and a chip base, the electrical contact portion is supported by the chip base, the chip base is immovable relative to the fixed support frame, the chip base is connected to one end of the extendable support rod, the housing is mounted to the end cap, and the fixed support frame is mounted to the end cap.

[0023] In some embodiments, the developing cartridge is detachably installed in the drum cartridge, the drum cartridge is provided with a photosensitive drum having an axis extending along a second direction; wherein,

[0024] As the drum cartridge continues to be installed along the second direction, the distance between the device upper wall and the device lower wall of the chip assembly installation portion becomes smaller when the chip assembly enters between the upper middle wall and the lower middle wall of the chip assembly installation portion of the imaging device, the two ends of the chip assembly abut against the device upper wall and the device lower wall respectively, and the elastic member of the chip assembly is compressed; as the developing cartridge continues to be installed along the second direction, the distance between the device upper wall and the device lower wall of the chip assembly installation portion becomes larger when the chip assembly enters between the upper front wall and the lower rear wall of the chip assembly installation portion, and the upper front wall is located above the upper middle wall in front, the elastic member pushes the chip base of the chip assembly to move upward, the chip base drives the drum cartridge to rotate in a third direction about the axis of the photosensitive drum, and the electrical contact portion forms electrical contact with the stylus.

[0025] In some embodiments, the developing cartridge further comprises a lifting piece, the lifting piece comprising a second connecting portion directly or indirectly connected to the housing, and a lifting block connected to the second connecting portion.

[0026] In some embodiments, the lifting block is in an arc shape, the second connecting portion is a plurality of reinforcing ribs, and the second connecting portion and the lifting block are connected to the end cover.

[0027] The developing cartridge provided by the embodiment is beneficial to simplify the structure of the chip assembly. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1A and Figure 1B is a perspective view of the developing cartridge according to the first embodiment of the utility model.

[0029] Figure 2 is an exploded view of the developing cartridge according to the first embodiment of the utility model, in which partial components of the driving end are separated from the housing.

[0030] Figure 3A is a side view of the developing cartridge according to the first embodiment of the utility model, in which the driving end cover is hidden, and the view is along a first direction.

[0031] Figure 3B is a side view of the developing cartridge according to the first embodiment of the utility model, in which the driving end cover is hidden, and the view is along a third direction.

[0032] Figure 4 is an exploded view of the developing cartridge according to the first embodiment of the utility model, in which partial components of the conducting end are separated from the housing.

[0033] Figure 5 is a side view of the developing cartridge according to the first embodiment of the utility model, in which the view is along a first direction.

[0034] Figure 6A is a top view of the powder discharging blade according to the first embodiment of the utility model, in which the view is along a second direction.

[0035] Figure 6B is a side view of the powder discharging blade according to the first embodiment of the utility model, in which the view is along a first direction, and the powder discharging blade is in contact with the developing roller.

[0036] Figure 7 is a top view of the powder discharging blade according to the second embodiment of the utility model, in which the view is along a second direction.

[0037] Figure 8 is a perspective view of the conducting end of the developing cartridge according to the second embodiment of the utility model.

[0038] Figure 9 is a perspective view of the developing cartridge according to the third embodiment of the utility model, in which the support, the conducting piece and the housing are separated.

[0039] Figure 10 is a perspective view of the powder outlet knife according to the fourth embodiment of the present application.

[0040] Figure 11 is a side view of the relative positions of the powder outlet knife, the developing roller and the first transmission member when viewed from right to left along the first direction in the developing cartridge according to the fourth embodiment of the present application.

[0041] Figure 12 is a perspective view of the powder outlet knife separated from the housing in the developing cartridge according to the fifth embodiment of the present application.

[0042] Figure 13 is a perspective view of the powder outlet knife according to the sixth embodiment of the present application.

[0043] Figure 14 is a perspective view of a variant of the powder outlet knife according to the sixth embodiment of the present application.

[0044] Figure 15 and Figure 16 is a perspective view of the developing cartridge according to the seventh embodiment of the present application.

[0045] Figure 17 is a state diagram of the developing cartridge and the drum cartridge adapted thereto being installed into an image forming device according to the seventh embodiment of the present application.

[0046] Figure 18 is a perspective view of the process cartridge having the developing cartridge according to the eighth embodiment of the present application.

[0047] Figure 19 is a sectional view taken along the AA direction in Figure 18 .

[0048] Figure 20 is a perspective view of the developing cartridge according to the thirteenth embodiment of the present application.

[0049] Figure 21 and Figure 22 is a perspective view of a chip assembly mounting portion of an image forming device to which the developing cartridge is adapted according to the present application.

[0050] Figure 23 is a side view of the chip assembly mounting portion when viewed along the first direction.

[0051] Figure 24-26 is a process diagram of the developing cartridge and the drum cartridge adapted thereto being installed into an image forming device according to the ninth embodiment of the present application.

[0052] Figure 27 is an exploded view of the developing cartridge according to the ninth embodiment of the present application, with the protective plate separated from the housing.

[0053] Figure 28 is a side view of the developing cartridge related to the ninth embodiment of the present application, viewed along a first direction.

[0054] Figure 29 is a perspective view of the developing cartridge related to the tenth embodiment of the present application.

[0055] Figure 30 is a perspective view of a drum cartridge to which the developing cartridge related to the present application is applicable.

[0056] Figure 31 and Figure 32 is a state diagram of the developing cartridge related to the tenth embodiment of the present application when the developing cartridge is mounted to the drum cartridge.

[0057] Figure 33 is a state diagram of the developing cartridge related to the tenth embodiment of the present application when the developing cartridge is mounted to the drum cartridge.

[0058] Figure 34 is a state diagram of the developing cartridge related to the eleventh embodiment of the present application when the developing cartridge is mounted to the drum cartridge.

[0059] Figure 35-38 is a state diagram of the developing cartridge related to the twelfth embodiment of the present application when the developing cartridge is mounted to the drum cartridge.

[0060] Figure 39 is a perspective view of an image forming apparatus to which the developing cartridge related to the twelfth embodiment of the present application is applicable.

[0061] Figure 40 is a perspective view of the developing cartridge related to the thirteenth embodiment of the present application.

[0062] Figure 41 is a perspective view of the developing cartridge related to the thirteenth embodiment of the present application.

[0063] Figure 42 is Figure 41 is a partial enlarged view at A.

[0064] Figure 43 is a perspective view of the developing cartridge related to the thirteenth embodiment of the present application.

[0065] Figure 44 is Figure 43 is a partial enlarged view at B.

[0066] Figure 45 is a bottom view of a chip assembly of the developing cartridge related to the thirteenth embodiment of the present application.

[0067] Figure 46 is a sectional view taken along Figure 45 a BB direction.

[0068] Figure 47is a perspective view of the chip assembly mounting portion involved in the thirteenth embodiment of the present application.

[0069] Figure 48 is a perspective view of the chip assembly mounting portion involved in the thirteenth embodiment of the present application.

[0070] Figure 49 is a side view of the chip assembly mounting portion viewed along the first direction.

[0071] Figure 50 is a side view of the developing cartridge involved in the thirteenth embodiment of the present application viewed along the first direction.

[0072] Figure 51 、 52 -54 is a schematic view of the mounting / demounting process of the developing cartridge and the drum cartridge adapted thereto to the mounting portion of the image forming apparatus involved in the thirteenth embodiment of the present application.

[0073] Figure 55 is a state view of the processing cartridge of the developing cartridge involved in the fourteenth embodiment of the present application to the mounting portion of the image forming apparatus.

[0074] Figure 56 is a perspective view of the processing cartridge of the developing cartridge involved in the fourteenth embodiment of the present application.

[0075] Figure 57 is a side view of the processing cartridge of the developing cartridge involved in the fourteenth embodiment of the present application viewed along the first direction.

[0076] Figure 58 is a side view of a deformation structure of the lifting member involved in the fourteenth embodiment of the present application viewed along the first direction. DETAILED DESCRIPTION

[0077] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0078] [Embodiment One]

[0079] Figure 1A and Figure 1B is a perspective view of the developing cartridge involved in the first embodiment of the present application; Figure 2 is an exploded schematic view of the developing cartridge involved in the first embodiment of the present application with the partial components of the driving end separated from the housing; Figure 3A is a side view of the developing cartridge involved in the first embodiment of the present application viewed along the first direction after the driving end cover is hidden; Figure 3B is a side view of the developing cartridge involved in the first embodiment of the present application viewed along the third direction after the driving end cover is hidden; Figure 4 is an exploded schematic view of the developing cartridge involved in the first embodiment of the present application with the partial components of the conductive end separated from the housing; Figure 5is a side view of the developing box related to the embodiment one of the present utility model along a first direction; Figure 6A is a plan view of the powder discharging blade related to the embodiment one of the present utility model along a second direction; Figure 6B is a side view of the powder discharging blade related to the embodiment one of the present utility model along a first direction when the powder discharging blade contacts with the developing roller.

[0080] The developing box 100 can be detachably installed into the image forming equipment provided with the detected member 9, or in other words, the developing box 100 is applicable to the image forming equipment provided with the detected member 9, the developing box 100 can be formed as an "integrated" structure including the developing roller and the photosensitive drum, or can be formed as a "separated" structure including the developing roller but not including the photosensitive drum, no matter what form the developing box 100 is, it can be directly or indirectly detachably installed into the image forming equipment, for example, the developing box 100 is first installed into the drum box, then the combination of the developing box 100 and the drum box is detachably installed into the image forming equipment, or the developing box 100 is directly detachably installed into the image forming equipment.

[0081] The developing box 100 includes the shell 1, the rotating member 2, the driving force receiving member 3 and the detection device 4, the shell 1 is formed with the cavity 10 for accommodating the toner, the rotating member 2 is rotatably arranged in the shell 1, the driving force receiving member 3 is used for receiving the driving force from the image forming equipment to drive the rotating member 2 to rotate, the detection device 4 is used for interacting with the detected member, so that the parameter information of the developing box 100 is known by the image forming equipment, for example, whether the developing box 100 is installed, the model of the developing box 100, the service life of the developing box 100 and other information; further, the developing box 100 further includes the end cover 11 connected with the shell 1 and the handle (gripping part) 12, the user realizes the installation and dismounting of the developing box 100 by operating the handle 12.

[0082] The rotating member 2 and the detection device 4 are both used for directly or indirectly receiving the driving force from the driving force receiving member 3 to work, that is, the driving force receiving member 3 directly or indirectly supplies the driving force received by it to the rotating member 2 and the detection device 4, so that the rotating member 2 and the detection device 4 work. In the embodiment, the driving force receiving member 3 is exposed from the exposure hole 112 (as shown in the figure) arranged in the end cover 11, the developing box 100 is further provided with the driving force transmission assembly 6, the driving force transmission assembly 6 is used for transmitting the driving force of the driving force receiving member 3 to the rotating member 2 and the detection device 4 respectively. Figure 2

[0083] ​The rotating member 2 includes a developing roller 21, a powder feeding roller 22 in contact with the developing roller 21 for supplying the carbon powder to the developing roller 21, and a stirring frame 23 for stirring the carbon powder, and the developing roller 21, the powder feeding roller 22 and the stirring frame 23 rotate around their respective rotation axes L1, L2, L3 respectively when the driving force receiving member 3 receives the driving force and rotates around the rotation axis L2, wherein the rotation axis L1 of the developing roller 21, the rotation axis L2 of the powder feeding roller 22 and the rotation axis L3 of the stirring frame 23 are parallel to each other.

[0084] For the sake of clarity of the following description, the extending direction of the rotation axis L1 is defined as the first direction, the direction intersecting with the first direction is defined as the second direction, and the direction intersecting with the first direction and the second direction is defined as the third direction, and preferably, the first direction, the second direction and the third direction are orthogonal; as shown in the figure, along the second direction, the developing roller 21 and the handle 12 are located at two ends of the housing 1 respectively, and when the developing cartridge 100 is installed towards the drum cartridge or the image forming device, the developing roller 21 is located at the front of the installation direction, and the handle 12 is located at the rear of the installation direction, thus, the second direction can also be regarded as the installation direction; along the first direction, the driving force receiving member 3 is located at one end (the driving end) of the housing 1, and the detection device 4 can be located at the same end of the driving force receiving member 3 or at two ends of the housing 1 respectively, and hereinafter, the detection device 4 and the driving force receiving member 3 are located at the same side as an example.

[0085] The developing cartridge 100 further includes a powder outlet blade 7 and a conductive member 5, the powder outlet blade 7 is fixedly installed on the housing 1 and in contact with the outer surface of the developing roller 21 for adjusting the amount of carbon powder carried by the developing roller 21, and the conductive member 5 is directly or indirectly installed on the housing 1 for receiving power from the image forming device and supplying to the developing roller 21 and / or the powder feeding roller 22.

[0086] Further, along the first direction, the driving force receiving member 3 and the conductive member 5 are located at two ends of the housing 1 respectively, thus, the end where the conductive member 5 is located can be referred to as the conductive end, and the driving end is defined as the left side of the developing cartridge 100, and the conductive end is defined as the right side of the developing cartridge 100, and in the state that the developing cartridge 100 is installed to the image forming device, the direction of gravity of the developing cartridge 100 is downward, and the opposite direction is upward, and along the third direction, at least a part of the powder outlet blade 7 is located above the rotation axis L1.

[0087] Further, along the first direction, the housing 1 has a left side wall 1a and a right side wall 1b which are separated from each other, the cavity 10 is located between the left side wall 1a and the right side wall 1b, the driving force transmission assembly 6 is directly or indirectly installed on the left side wall 1a, and the conductive member 5 is directly or indirectly installed on the right side wall 1b.

[0088] (Driving force transmission assembly)

[0089] As Figure 2As shown, the driving force transmission assembly 6 comprises a first transmission member 61, a second transmission member 62, a third transmission member 63, a fourth transmission member 64 and a fifth transmission member 65, wherein the first transmission member 61 is coaxially arranged with the driving force receiving member 3, the second transmission member 62 is coaxially arranged with the developing roller 21, the third transmission member 63 is coaxially arranged with the powder feeding roller 22, the fifth transmission member 65 is coaxially arranged with the stirring frame 23, the fourth transmission member 64 is located between the first transmission member 61 and the fifth transmission member 65, and the fourth transmission member 64 is combined with the first transmission member 61 and the fifth transmission member 65 at the same time, the fifth transmission member 65 is used to be combined with the detection device 4, thus the driving force received by the driving force receiving member 3 is transmitted to the detection device 4 in sequence through the first transmission member 61, the fourth transmission member 64 and the fifth transmission member 65; at least one of the second transmission member 62 and the third transmission member 63 is combined with the first transmission member 61 to receive the driving force from the driving force receiving member 3, when one of the second transmission member 62 and the third transmission member 63 is combined with the first transmission member 61, the second transmission member 62 and the third transmission member 63 can transmit the driving force by being combined with each other, when the second transmission member 62 and the third transmission member 63 are combined with the first transmission member 61 at the same time, the driving force can be directly transmitted to the second transmission member 62 and the third transmission member 63, finally, the developing roller 21, the powder feeding roller 22 and the stirring frame 23 are all driven.

[0090] In some embodiments, the first transmission member 61 comprises a first small-diameter portion 611 and a first large-diameter portion 612 which are coaxially arranged, the diameter of the first small-diameter portion 611 is smaller than that of the first large-diameter portion 612, along the first direction, the first small-diameter portion 611 is farther away from the shell 1 / cavity 10 / conductive end than the first large-diameter portion 612; the fourth transmission member 64 comprises a second small-diameter portion 641 and a second large-diameter portion 642 which are coaxially arranged, the diameter of the second small-diameter portion 641 is smaller than that of the second large-diameter portion 642, the fifth transmission member 65 is combined with the second small-diameter portion 641, along the first direction, the second small-diameter portion 641 is farther away from the shell 1 / cavity 10 / conductive end than the second large-diameter portion 642; the fifth transmission member 65 is provided with a driving portion 650 for driving the detection device 4.

[0091] As above, the first large-diameter portion 612 is closer to the shell 1 / cavity 10 / conductive end than the first small-diameter portion 611, the second large-diameter portion 642 is closer to the shell 1 / cavity 10 / conductive end than the second small-diameter portion 641, this design is conducive to reducing the possible shaking of the first transmission member 61 and the fourth transmission member 64, thus improving the stability of the driving force transmission assembly 6 in transmitting driving force.

[0092] As Figure 3BAs shown, along the first direction, the fifth transmission member 65 is not closer to the housing 1 than the fourth transmission member 64 and / or the first transmission member 61, that is, along the first direction, the fifth transmission member 65, the fourth transmission member 64 and the first transmission member 61 are at the same distance from the housing 1, or the distance from the housing 1 of the fifth transmission member 65 is greater than that of the fourth transmission member 64 and / or the first transmission member 61, or the distance from the housing 1 of the fifth transmission member 65 is not less than that of the fourth transmission member 64 and / or the first transmission member 61; for a clearer display of the distance, Figure 3B A reference surface D is introduced in the middle, the reference surface D is parallel to the second direction, and the reference surface D also passes through the cavity 10, along the first direction, the distance from the position farthest from the housing 1 of the fifth transmission member 65 to the reference surface D is h1, the distance from the position farthest from the housing 1 of the fourth transmission member 64 (second small diameter part 641) to the reference surface D is h2, and the distance from the position farthest from the housing 1 of the first transmission member 61 (first small diameter part 611) to the reference surface D is h3, satisfying h1≥h2, h1≥h3; such a design can effectively avoid interference between the fifth transmission member 65 and the fourth transmission member 64 or between the fifth transmission member 65 and the first transmission member 61, on the one hand, and can make the movable member 42 have a larger movement space, on the other hand, and at the same time, the movable member 42 can also be effectively protected by the fifth transmission member 65 to prevent the movable member 42 from falling off.

[0093] (detection device)

[0094] As Figure 2 shown, the detection device 4 includes a detection member 41, a movable member 42, a pushing member 43 and a reset member 44, under the action of the reset member 44, the detection member 41 can reciprocate in a direction intersecting the first direction, the movable member 42 is used to be driven by the fifth transmission member 65 to transmit driving force to the detection member, and then force the detection member 41 to interact with the detection member, and the pushing member 43 is used to push the movable member 42 to a state where the driving force transmission between the detection member 41 and the detection member is disconnected.

[0095] In an embodiment, the detection member 41 is movably mounted on the end cover 11, as shown, the end cover 11 includes an end cover body 111, an exposure hole 112 and a guide part 113, along the first direction, the exposure hole 112 passes through the end cover body 111, and the guide part 113 is used to guide the detection member 41, preferably, the guide part 113 is a sliding groove provided on the end cover body 111, and the reset member 44 is an elastic member mounted in the sliding groove 113, when the detection member 41 is driven by the movable member 42 to move, the reset member 44 is elastically deformed, when the detection member 41 is no longer driven by the movable member 42, the reset member 44 releases the elastic force, so that the detection member 41 resets.

[0096] In one embodiment, the guide 113 can also be a protrusion provided on the end cover body 111, and the detection member 41 is provided with a groove for cooperating with the protrusion.

[0097] The movable member 42 comprises a movable body 421, a driven portion 422 and a driving portion 423 connected to the movable body 421 respectively, and the driven portion 422 and the driving portion 423 protrude from the movable body 421, the driven portion 422 is used to combine with the driving portion 650 to receive the driving force transmitted by the fifth transmission member 65, and the driving portion 423 is used to transmit the driving force to the detection member 41 so that the detection member 41 can move along a predetermined track, thereby the detection member 41 interacts with the detected member.

[0098] Specifically, the movable member 42 is arranged to be movable between a close position close to the shell 1 and an away position away from the shell 1, and more specifically, the movable member 42 is arranged to be movable in a direction parallel to the first direction, for example, before the detection device 4 / detection member 41 completes the interaction with the detected member, the movable member 42 is located at the away position away from the shell 1, at this time, the movable member 42 can transmit the driving force to the detection device 4 / detection member 41, after the detection device 4 / detection member 41 completes the interaction with the detected member, the movable member 42 moves to the close position close to the shell 1 under the action of the urging member 43, at this time, the driving force transmission between the movable member 42 and the detection device 4 / detection member 41 is disconnected; in some embodiments, the movement process of the movable member 42 can also be reversed, that is, before the detection device 4 / detection member 41 completes the interaction with the detected member, the movable member 42 is located at the close position close to the shell 1, at this time, the movable member 42 can transmit the driving force to the detection device 4 / detection member 41, after the detection device 4 / detection member 41 completes the interaction with the detected member, the movable member 42 moves to the away position away from the shell 1 under the action of the urging member 43, at this time, the driving force transmission between the movable member 42 and the detection device 4 / detection member 41 is disconnected.

[0099] In some embodiments, the developing cartridge 100 further comprises a support column 13 protruding from the left side wall la, and the movable member 42 is supported by the support column 13, and a combination groove 424 can be provided in the movable member 42, and correspondingly, the support column 13 is provided with a combination protrusion 132 which can combine with the combination groove 424, when the movable member 42 is located at the away position, the combination groove 424 does not combine with the combination protrusion 132, when the detection device 4 / detection member 41 completes the interaction with the detected member, the combination protrusion 132 enters the combination groove 424 to complete the combination under the action of the urging member 43, and the movable member 42 reaches the close position; conversely, the positions of the combination protrusion 132 and the combination groove 424 can also be interchanged.

[0100] In some embodiments, the detection member 41 is provided with a driven part 411 and an acting part 412, the driving force is transmitted to the detection member 41 by driving the driven part 411 with the driving part 423, and the acting part 412 can interact with the detected member 9 when the detection member 411 is driven.

[0101] (conductive member)

[0102] As shown in Figure 4 , the conductive member 5 includes a power receiving part 51, a power supply part 52 and a connecting part 53, the power receiving part 51 is used to receive power from the image forming device, the power is transmitted to the power supply part 52 through the connecting part 53, and the power is supplied to at least one of the developing roller 21 and the powder feeding roller 22 by the power supply part 52.

[0103] The developing roller 21 includes a developing roller shaft 212 and a developing layer 211 coated outside the developing roller shaft 212, the developing layer 211 is used to carry toner, the powder feeding roller 22 includes a powder feeding roller shaft 222 and a powder feeding layer 221 coated outside the powder feeding roller shaft 222, the powder feeding layer 221 is used to supply toner to the developing layer 211, generally, the developing roller shaft 212 and the powder feeding roller shaft 222 are both made of metal to reduce the time delay in the process of transmitting the driving force in the developing roller 21 and the powder feeding roller 22; thus, in some embodiments, the developing roller shaft 212 and the powder feeding roller shaft 222 can also be made of non-metal, as shown in Figure 4 , the support hole for supporting the developing roller shaft 212 and the support hole for supporting the powder feeding roller shaft 222 in the housing 1 are not communicated.

[0104] Generally, the image forming device is provided with a first power output member for supplying power to the developing roller 21 and a second power output member for supplying power to the powder feeding roller 22, the voltage output by the second power output member is higher than that output by the first power output member, the power receiving part 51 in the present embodiment is arranged to contact the second power output member to receive the voltage output by the second power output member, and the power supply part 52 contacts the developing roller shaft 212, preferably, the power supply part 52 contacts the end surface of the developing roller shaft 212.

[0105] As shown in Figure 5 , when viewed from right to left along the first direction, the conductive member 5 is located outside the projection range of the driving force receiving member 3, which can effectively reduce the influence of the vibration generated by the driving force receiving member 3 when rotating on the conductive member 5, especially, the vibration generated by the driving force receiving member 3 is greater at the moment when it is driven, but the conductive member 5 is not located in the projection range of the driving force receiving member 3, so that the power receiving part 51 can not only maintain stable contact with the second power output member, but also the power supply part 53 can maintain stable contact with the developing roller shaft 212.

[0106] (powder outlet blade)

[0107] The powder outletting knife 7 includes a holder 71 and a blade 72, both of which extend along the first direction, the blade 72 is fixedly installed on the holder 71 and used to contact the developing roller 21 (the developing layer 211) to adjust the thickness of the carbon powder layer on the surface of the developing roller 21 (the developing layer 211). Commonly, the blade 72 can be connected with the holder 71 by bonding, welding, etc., such as shown in Figure 6A and Figure 6B The blade 72 is welded on the holder 71, and a plurality of welding portions 74 are formed between the blade 72 and the holder 71.

[0108] Further, the powder outletting knife 7 further includes at least one mounting portion 73 provided on the holder 71, through the mounting portion 73, the powder outletting knife is fixedly installed. Specifically, the screw as a mounting member passes through the mounting portion 73, and the powder outletting knife 7 can be fixedly installed on the housing 1. Preferably, the powder outletting knife 7 is provided with two mounting portions 73, which are located at two ends of the powder outletting knife along the first direction, and the mounting portion 73 is provided as a mounting hole. Along the third direction (the direction intersecting the first direction and the thickness direction of the blade), the holder 71 has a first end 71a and a second end 71b spaced from each other, and the blade 72 has a third end 72a and a fourth end 72b spaced from each other, wherein the second end 71b is located between the third end 72a and the fourth end 72b, the third end 72a is located between the first end 71a and the second end 71b, the first end 71a is farther away from the rotation axis L1 than the second end 71b along the third direction, the third end 72a is farther away from the rotation axis L1 than the fourth end 72b, and the third end 72a is farther away from the rotation axis L1 than the second end 71b.

[0109] The second end 71b and the third end 72a form a joint area S, the joint area S is located on at least one of the holder 71 and the blade 72, and the blade 72 and the holder 71 are combined in the joint area S. Along the third direction, the mounting portion 73 and the welding portion 74 are both located in the joint area S. For example, at least one of the second end 71b and the third end 72a is flush with the mounting portion 73, and when viewed along the second direction, the mounting portion 73 can be circular or elliptical. At this time, the second end 71b and the third end 72a will be tangent to the mounting portion 73.

[0110] In some embodiments, the mounting portion 73 passes through both the blade 72 and the holder 71, so that the blade 72 can be further fixed.

[0111] In some embodiments, the third end 72a is farther away from the developing roller 21 / rotation axis L1 than the mounting portion 73, or in other words, the third end 72a is farther away from the second end 71b than the mounting portion 73, so that the area of the joint area S is as large as possible, and the blade 72 can be more stably supported by the holder 71.

[0112] In some implementations, such as Figure 7 As shown, in the powder-discharging blade 7 of this embodiment, along the first direction, the two ends of the blade 72 are respectively provided with a first notch 721 and a second notch 722. Neither of the two mounting parts 73 passes through the first notch 721 and the second notch 722. At this time, the mounting part 73 will only pass through the blade holder 71. Along the third direction, the mounting part 73 is still located in the joint area S.

[0113] [Example 2]

[0114] Figure 8 This is a perspective view of the conductive end of the developing cartridge according to Embodiment 3 of this utility model.

[0115] Based on the inventive concept of the above embodiments, this embodiment focuses on changing the structure of the developing roller 21 receiving electricity and the structure of the conductive component 5.

[0116] In the above embodiment, the developing roller shaft 212 and the powder feeding roller shaft 222 respectively pass through the right side wall 1b and are exposed to the right. In this way, the conductive element 5 can directly contact the developing roller shaft 212 and / or the powder feeding roller shaft 222 on the right side of the right side wall 1b to transmit electricity. However, since the developing roller shaft 212 and the powder feeding roller shaft 222 also need to pass through the left side wall 1a to receive the driving force, the developing roller 21 and the powder feeding roller 22 are prone to swerving in the left-right direction / first direction. Therefore, in this embodiment, at least one of the developing roller shaft 212 and the powder feeding roller shaft 222 is set not to pass through the right side wall 1b to reduce or eliminate the amount of swerving of the developing roller 21 and the powder feeding roller 22 in the left-right direction. Preferably, along the first direction, the position of the right side wall 1b corresponding to the developing roller shaft 212 and / or the position of the right side wall 1b corresponding to the powder feeding roller shaft 222 is in a closed state. At this time, the user cannot observe the developing roller shaft 212 and / or the powder feeding roller shaft 222 along the first direction.

[0117] Figure 8 The diagram shows a structure in which neither the developing roller 21 nor the powder feeding roller 22 passes through the right side wall 1b. The developing cartridge 100 also includes a first support portion 1c and a second support portion 1d disposed on the right side wall 1b. The first support portion 1c is used to support the powder feeding roller shaft 222, and the second support portion 1d is used to support the developing roller shaft 212. Specifically, the first support portion 1c and the second support portion 1d can be a groove disposed on the right side wall 1b, or a protrusion protruding from the right side wall 1b to the left / conductive end (in the direction of the cavity 10).

[0118] Further, to reduce the wear of the first support part 1c and the second support part 1d, the developing cartridge 100 further comprises a first shaft sleeve 223 and a second shaft sleeve 213 respectively installed in the first support part 1c and the second support part 1d, the powder feeding roller shaft 222 is supported by the first shaft sleeve 223, and the developing roller shaft 212 is supported by the second shaft sleeve 213.

[0119] Different from the above embodiment, the power supply part 52 in the embodiment passes through or beyond the right side wall 1b to contact the developing roller shaft 212, at this time, the power supply part 52 reaches from the right side of the right side wall 1b to the left side of the right side wall 1b, the power supply part 52 can contact the circumferential surface of the developing roller shaft 212 or the end surface of the developing roller shaft 212, when the power supply part 52 contacts the end surface of the developing roller shaft 212, the second support part 1d can further be provided with an access port 1e for allowing the power supply part 52 to enter, finally, along the first direction, the power supply part 52 is clamped by the right side wall 1b and the end surface of the developing roller shaft 212, and the power supply part 52 can stably supply power to the developing roller shaft 212.

[0120] [Embodiment Three]

[0121] Figure 9 It is a perspective view of the developing cartridge in the fifth embodiment of the utility model, in which the support, the conductive part and the shell are separated.

[0122] As above, the developing roller 21 is rotatably arranged in the shell 1, specifically, the developing cartridge 100 further comprises a support 8 arranged at the conductive end, the support 8 is fixedly connected with the shell 1, the developing roller 21 is supported by the support 8, and the conductive part 5 can be mounted on the shell 1 or the support 8, and meanwhile, the conductive part 5 is electrically connected with the developing roller 21.

[0123] In some embodiments, the conductive part 5 can be omitted, at this time, at least a part of the support 8 is made of conductive material, that is, the developing roller 21 can receive power from the image forming device through the support 8, one end of the support 8 is used to electrically contact with the image forming device, and the other end electrically contacts with the developing roller 21.

[0124] In some embodiments, the support 8 is made of non-conductive material, and the developing roller 21 still receives power from the image forming device through the conductive part 5.

[0125] Irrespective of whether the support 8 is made of conductive material or non-conductive material, the technical scheme of the embodiment is applicable.

[0126] As Figure 9As shown, the bracket 8 comprises a supporting portion 81, a connecting portion 82 and a force receiving portion 84, wherein the supporting portion 81 and the force receiving portion 84 are respectively located at two ends of the connecting portion 82, the supporting portion 81 is used for supporting the developing roller 21, and the force receiving portion 84 is used for receiving the urging force applied by the urging mechanism in the cartridge, and then the urging force is transmitted to the housing 1 through the bracket 8, and finally the developing roller 21 rotatably arranged in the housing 1 keeps in contact with the photosensitive drum in the cartridge.

[0127] Similarly, the urging mechanism 14 in the embodiment also comprises a left urging member 14L and a right urging member 14R, wherein the left urging member 14L is the same as that in the fourth embodiment, and the right urging member 14R can be regarded as the force receiving portion 84, that is, the right urging member 14R in the embodiment is arranged on the bracket 8, so that the structures of the bottom cover 1t and the face cover 1s can be simplified.

[0128] In some embodiments, after receiving the urging force, the force receiving portion 84 can also directly abut against the housing 1, in which the structural strength requirement of the bracket 8 can be reduced.

[0129] In some embodiments, the bracket 8 further comprises a sealing portion 83 used for sealing the replenishment opening 15, so that the replenishment opening 15 can be sealed by the sealing portion 83 when the bracket 8 is mounted to the housing 1, so that it is not necessary to separately arrange a sealing member used for sealing the replenishment opening 15, and the sealing portion 83 can be arranged at any position of the bracket 8 as long as the replenishment opening 15 can be sealed by the sealing portion 83.

[0130] In some embodiments, when a sealing member used for sealing the replenishment opening 15 is separately arranged in the developing cartridge 100, the sealing portion 83 will be in contact with the sealing member, so that the bracket 8 can be more stably positioned, and correspondingly, the right urging member 14R is also further positioned and is not easy to shake.

[0131] Further, in the structure, when the force receiving portion 84 receives the urging force, the urging force can also be transmitted by the abutment between the sealing portion 83 and the housing forming the replenishment opening 15, so that the urging force transmitted to the developing roller 21 through the supporting portion 81 can be reduced, which is beneficial to prevent the urging force from being too large to cause the developing roller 21 to move relative to the housing 1, and then cause the toner to leak from between the developing roller 21 and the housing 1.

[0132] In some embodiments, when the replenishment opening 15 is arranged at the driving end, the left urging member 14L can be arranged on the sealing member used for sealing the replenishment opening 15, and correspondingly, the right urging member 14R is arranged on the face cover 1s.

[0133] [Embodiment four]

[0134] Figure 10is a perspective view of the powder outlet knife involved in the sixth embodiment of the utility model; Figure 11 is a side view of relative positions of the powder outlet knife, the developing roller and the first transmission member when viewed from right to left along the first direction in the developing box involved in the sixth embodiment of the utility model.

[0135] Based on the inventive concept of the above embodiments, the present embodiment continues to describe the structure of the powder outlet knife 7, the knife holder 71 in the present embodiment comprises a first part 711 and a second part 712 connected with each other, and the blade 72 comprises a pressing part 721 and an extension part 722 connected with each other, wherein the pressing part 721 is used to be in surface contact with the developing roller 21, and the pressing part 721 is connected with the first part 711, or in other words, the pressing part 721 is fixedly installed on the first part 711, and the extension part 722 is located at the fourth end 72b.

[0136] As shown in Figure 11 , the first part 711 and the second part 712 are not parallel to each other, so that a bending part 713 will be formed between the first part 711 and the second part 712, and the overall strength of the knife holder 71 can be improved, and the first part 711 and the second part 712 are in the shape of “L”, when viewed along the first direction, the edge of the knife holder 71 will form a surface M perpendicular to the rotation axis L2 of the driving force receiving member 3 / the first transmission member 61, the surface M is in the shape of a square or a rectangle as a whole, and the rotation axis L2 does not pass through the surface M, or in other words, the rotation axis L2 is located outside the surface M, and such a setting is conducive to reducing the influence of the vibration generated when the driving force receiving member 3 works on the powder outlet knife 7 / the knife holder 71, so that the powder outlet knife 7 can be more stably fixed on the shell 1.

[0137] In some embodiments, along the first direction, neither the driving force receiving member 3 nor the first transmission member 61 passes through the bending part 713, that is, the projection of the driving force receiving member 3 and / or the projection of the second transmission member 61 does not overlap with the projection of the bending part 713 in the first direction, which can further reduce the influence of the vibration generated when the driving force receiving member 3 works on the powder outlet knife 7 / the knife holder 71.

[0138] In some embodiments, as shown in Figure 11 , along the second direction, the second part 712 is closer to the rotation axis L2 than the first part 711, and in other embodiments, along the second direction, the second part 712 can also be arranged to be farther away from the axis L2 than the first part 711.

[0139] Further, the extension part 722 is formed extending from the pressing part 721, specifically, the extension part 722 extends from the end of the pressing part 721 (referring to the above orientation, specifically, the lower end of the pressing part 721), the setting of the extension part 722 is beneficial to improve the strength of the blade 72, when viewed along the first direction, the included angle β between the extension direction of the pressing part 721 and the extension direction of the extension part 722 is greater than 90°, so that the force required by the production equipment when manufacturing the powder knife can be reduced, thereby reducing the energy consumption of the production equipment and reducing the cost.

[0140] In Figure 11 , the extension length of the extension part 722 is not more than 3mm, preferably 0.5mm-2mm.

[0141] Further, when viewed along the first direction, the blade 72 is formed with a contact part P for contacting the surface of the developing roller 21, the pressing part 721 has an end face 723 facing upstream of the developing roller rotation direction r (below the contact part P), the end face 723 extends from the contact part P in a direction away from the developing roller 21, the surface N is a tangent plane passing through the contact part P, and the included angle α between the end face 723 and the tangent plane N is less than 90°. Figure 11

[0142] [Example Five]

[0143] Figure 12 It is the perspective view of the powder outlet knife separated from the shell in the developing box related to the seventh embodiment of the utility model.

[0144] In this embodiment, the second part 712 in the blade holder 71 is cancelled, so that the blade holder 71 will only be provided with the first part 711, and overall, the blade holder 71 is no longer L-shaped, and is preferably I-shaped, and the I-shaped design of the blade holder 71 can also reduce the manufacturing steps and manufacturing process of the powder outlet knife, thereby reducing the cost.

[0145] In order to improve the strength of the blade holder 71, the powder outlet knife 7 related to the present embodiment further comprises at least one auxiliary mounting part 75 arranged on the first part 711, and correspondingly, the shell 1 is provided with a combination part 16 corresponding to the auxiliary mounting part 75, in addition to being mounted to the shell 1 through the mounting part 73, the powder outlet knife 7 is also mounted to the shell 1 through the combination of the auxiliary mounting part 75 and the combination part 16, and along the first direction, the auxiliary mounting part 75 is located between the two mounting parts 73.

[0146] In some embodiments, the auxiliary mounting part 75 can be arranged as an auxiliary mounting hole, and the combination part 16 is arranged as a combination hole, so that the powder outlet knife 7 can be more stably fixed by the screw passing through the auxiliary mounting hole 75 and the combination hole 16.

[0147] ​In some embodiments, the auxiliary mounting portion 75 is still provided as an auxiliary mounting hole, and the connecting portion 16 is provided as a connecting protrusion, in which structure, the powder discharging knife 7 is fixed more stably by the combination of the connecting protrusion 16 and the auxiliary mounting hole 75 without the use of screws; conversely, the auxiliary mounting portion 75 can also be provided as a connecting protrusion, and the connecting portion 16 is provided as a connecting hole, and the powder discharging knife 7 can also be fixed more stably by the combination of the connecting protrusion and the connecting hole.

[0148] Preferably, along the first direction, the plurality of auxiliary mounting portions 75 are arranged at intervals on the knife holder 71.

[0149] [Embodiment six]

[0150] Figure 13 is a perspective view of the powder discharging knife related to the eighth embodiment of the utility model; Figure 14 is a perspective view of a variant structure of the powder discharging knife related to the eighth embodiment of the utility model.

[0151] The powder discharging knife 7 in the embodiment also does not include a second part 712, and similarly, to improve the strength of the knife holder 71, the powder discharging knife 7 in the embodiment also includes a reinforcing piece 76 mounted on the knife holder 71.

[0152] In some embodiments, the reinforcing piece 76 and the blade 72 are jointly mounted on the same side of the knife holder 71 / the first part 711.

[0153] In some embodiments, as shown in Figure 13 , the reinforcing piece 76 is continuously arranged along the first direction, and under the premise of ensuring the strength of the knife holder 71, the reinforcing piece 76 can also be arranged intermittently along the first direction, that is, along the first direction, the knife holder 71 is provided with a plurality of reinforcing pieces 76.

[0154] In some embodiments, the plurality of reinforcing pieces 76 can also be arranged along the width direction (the third direction) of the knife holder 71, as shown in Figure 14 , two reinforcing pieces 76 are arranged at intervals along the width direction, and the two reinforcing pieces 76 can also be connected to each other in the width direction.

[0155] [Embodiment seven]

[0156] Figure 15 and Figure 16 is a perspective view of the developing cartridge related to the eleventh embodiment of the utility model; Figure 17 is a state diagram when the developing cartridge related to the eleventh embodiment of the utility model and the drum cartridge adapted thereto are installed together towards the image forming device.

[0157] In the above embodiments, the detection device 4 is provided as a detection protrusion capable of abutting against / interacting with the detected member 9. In some embodiments, the detection device 4 can also be provided as a chip assembly 300 for establishing a communication connection with the image forming device, the chip assembly 300 being in electrical contact with the stylus in the image forming device, as shown in Figure 15 As shown, the detection device 4 / chip assembly 300 includes a mounting frame 31 and a chip 32, the chip 32 including a substrate 324 and an electrical contact portion 321, at least the electrical contact portion 321 being supported by the mounting frame 31. Preferably, the electrical contact portion 321 is provided on the substrate 324, and the substrate 324 is fixedly provided on the mounting frame 31, that is, the chip 32 / electrical contact portion 321 is fixedly provided relative to the housing 1 and can move together with the housing 1, thereby achieving electrical contact between the electrical contact portion 321 and the stylus. At the same time, this structure design is also conducive to simplifying the structure of the chip assembly.

[0158] Similarly, the mounting seat CA2 can be provided on at least one of the end cover 11 and the housing 1. Based on the inventive concept of the present application, the chip assembly 300 / chip 32 / electrical contact portion 321 can move together with the developing cartridge 100 as a whole from the first position to the second position. When the developing cartridge 100 reaches the second position, the electrical contact portion 321 is in electrical contact with the stylus. Therefore, the chip assembly 300 / chip 32 / electrical contact portion 321 can be regarded as the detected member of the present embodiment, and the stylus can be regarded as the detected member of the present embodiment. The electrical contact between the electrical contact portion 321 and the stylus is one way of interaction between the detected member and the detected member.

[0159] As shown in Figure 16 In the present embodiment, the abutting member 17 protrudes to the right from the right side wall 1b, as shown in Figure 17 As shown, the image forming device further includes a guide rail 92 provided adjacent to the mounting cavity Q, the guide rail 92 being located on the left side and / or the right side of the mounting cavity Q and used for guiding the developing cartridge 100 or the combination of the developing cartridge 100 and the drum cartridge 200. The guide rail 92 is provided with a guide inclined surface 921.

[0160] The developing cartridge 100 is mounted to the drum cartridge 200 to form a process cartridge, and the process cartridge is mounted to the image forming device in the second direction. During the mounting process of the process cartridge, the abutting member 17 gradually abuts against the guide inclined surface 921, so that the developing cartridge 100 is gradually lifted in the third direction until the developing cartridge 100 / process cartridge reaches the predetermined mounting position of the image forming device, at which time the electrical contact portion 822 is in electrical contact with the stylus.

[0161] It can be seen that, under the interaction of the abutting member 17 as the acting member and the guide rail 92 / guide slope 921 as the acted member, the developing cartridge 100 in this embodiment can also move from the first position, in which the detection device 4 / electric contact portion 822 cannot interact with the stylus, to the second position, in which the detection device 4 / electric contact portion 822 can interact with the stylus; in this design, the mounting seat CA2 can be fixedly arranged relative to the end cover 11 or the housing 1, the overall structure thereof can be simplified, and accordingly, the structure of the chip assembly 300 can also be simplified.

[0162] As described above, through the interaction of the detection member 41 and the detected member 9, the parameter information of the developing cartridge 100 can be known by the image forming device, through the electrical contact of the electric contact portion 321 and the stylus, the developing cartridge 100 / the chip 32 / the electric contact portion 321 establishes a communication connection with the image forming device, and the parameter information of the developing cartridge 100 stored in the chip 32 can also be known by the image forming device, thus, the electric contact portion 321 in this embodiment can also be regarded as a kind of detection member, and the stylus can also be regarded as a kind of detected member.

[0163] In the first position, the detection member cannot interact with the detected member means that the detection member cannot contact the detected member, or even if the driving force receiving member 3 receives the driving force, the detection member will not interact with the detected member, and the parameter information of the developing cartridge 100 cannot be obtained by the image forming device; in the second position, the detection member can interact with the detected member means that the detection member directly contacts the detected member, when the driving force receiving member 3 receives the driving force, the detection member directly forces the detected member to complete the predetermined movement, or the detection member does not directly contact the detected member, when the driving force receiving member 3 receives the driving force, the detection member generates movement and contacts the detected member, and then forces the detected member to complete the predetermined movement, or the detection member and the detected member are in electrical contact, and finally, the parameter information of the developing cartridge 100 is obtained by the image forming device.

[0164] In the above embodiment, when the abutting member 17 abuts against the guide slope 921, only the developing cartridge 100 moves upward along the third direction, however, this way can cause the developing roller 21 and the photosensitive drum to separate from each other, and then affect the imaging quality, in an improved embodiment, the abutting member 17 is still arranged in the developing cartridge 100, at the same time, the developing cartridge 100 is limited in the drum cartridge 200 through the limiting mechanism, so that when the abutting member 17 abuts against the guide slope 921, the developing cartridge 100 and the drum cartridge 200 can move upward along the third direction together, the relative position of the developing roller 21 and the photosensitive drum will not change, which is beneficial to maintaining stable imaging quality.

[0165] In some embodiments, the abutting member 17 can also be arranged on the drum cartridge 200, and when the cartridge is installed, the abutting member 17 abuts against the guide slope 921, and the cartridge is gradually lifted in the third direction as a whole, and the electrical contact 822 in the developing cartridge 100 also moves upward in the third direction, and finally, the electrical contact 822 is in electrical contact with the stylus, which is also conducive to maintaining stable imaging quality.

[0166] As shown in Figure 16 The right forced pushing member 14R is arranged on the sealing portion 83, which is conducive to simplifying the structure of the housing 1 or the bracket 8, and the right forced pushing member 14R can also serve as an operation portion for the user to operate the sealing portion 83. Compared with a sheet-shaped operation portion arranged on the sealing portion 83, the right forced pushing member 14R has a more three-dimensional structure and is more convenient for the user to operate.

[0167] [Embodiment Eight]

[0168] As shown in Figure 18 and Figure 19 In this embodiment, the abutting member / acting member 17 is a magnetic member arranged in the developing cartridge 100, and the acted member is a metal member / metal plate 94 arranged in the image forming apparatus. The developing cartridge 100 or the cartridge as a whole moves in the third direction from the first position to the second position by using the magnetic force between the magnetic member 17 and the metal plate / metal plate 94.

[0169] Similarly, in the first position, the electrical contact 321 does not interact with the stylus (specifically, the two do not contact each other and cannot establish a communication connection), and the parameter information of the developing cartridge 100 cannot be obtained by the image forming apparatus. In the second position, the electrical contact 321 interacts with the stylus (specifically, the two are in contact and establish a communication connection), and the parameter information of the developing cartridge 100 can be obtained by the image forming apparatus. It can be seen that the electrical contact 321 in this embodiment can also be regarded as a kind of detection member, and the stylus can also be regarded as a kind of detected member.

[0170] According to the arrangement position of the stylus, the developing cartridge 100 or the cartridge as a whole can move downward or upward in the third direction from the first position to the second position. The magnetic force can be a magnetic attraction force or a magnetic repulsion force, which can be selected by the designer according to the product design requirements.

[0171] According to the above-mentioned inventive concept, it can be changed that when the detection member 41 / CA22 is not arranged on the end cover 11 but is arranged to be movable with the housing 1, in the process of interaction between the acting member and the acted member, the end cover 11 can not necessarily move but the housing 1 moves from the first position to the second position, and similarly, in the first position, the detection member 41 / CA22 cannot interact with the detected member, and in the second position, the detection member 41 / CA22 can interact with the detected member.

[0172] For example, the end cover 11 is arranged to be movable relative to the housing 1, when the developing cartridge 100 is mounted to the drum cartridge or the image forming device, the end cover 11 is fixed relative to the drum cartridge or the image forming device, and the housing 1 is movable relative to the drum cartridge or the image forming device.

[0173] Accordingly, in possible embodiments, the acting member 17 extends from the housing 1 and passes through the end cover 11, and the detection member 41 / CA22 is directly arranged on the housing 1, or the detection member 41 / CA22 is connected to the housing 1 through an intermediate member, as long as the acting member 17 can interact with the acted member, the detection member 41 / CA22 can move in response to the movement of the housing 1.

[0174] As mentioned above, the end cover 11 is used to allow the driving force receiving member 3 to be exposed, that is, along the first direction, the end cover 11 and the driving force receiving member 3 are located on the same side of the housing 1, however, according to the inventive concept of the present application, along the first direction, the end cover 11 can also be located on the two sides of the housing 1 respectively with the driving force receiving member 3.

[0175] [Embodiment Nine]

[0176] Based on the inventive concept of the above-mentioned embodiments, this embodiment continues to optimize the structure of the chip assembly 300, therefore, the same components as the above-mentioned embodiments will be directly quoted, such as Figure 20 As shown, the chip assembly 300 involved in this embodiment includes a chip holder 31 and a chip 32, the chip 32 has an electrical contact part 321 for electrical connection / electrical contact with the stylus 403 in the image forming device, and at least the electrical contact part 321 is supported by the chip holder 31; further, the chip 32 further includes a substrate 324, the electrical contact part 321 can be arranged on the substrate 324 or can be arranged separately from the substrate 324, hereinafter, the electrical contact part 321 arranged on the substrate 324 is taken as an example for description.

[0177] Continue as Figure 20As shown, the chip rack 31 comprises a first constituent part 311 and a second constituent part 312, wherein at least a part of the first constituent part 311 is located above the second constituent part 312 along the third direction, and the electrical contact part 321 is supported by the first constituent part 311, which can be directly supported or indirectly supported. The first constituent part 311 is arranged to be immovable relative to the housing 1, and the second constituent part 312 is arranged to be movable relative to the housing 1, i.e. the first constituent part 311 is fixedly arranged relative to the housing 1, and the second constituent part 312 is movably arranged relative to the housing 1; the first constituent part 311 is directly or indirectly connected with the housing 1, for example, the first constituent part 311 is directly extended from the housing 1, or the first constituent part 311 is extended from a component (for example: the end cover 11) fixedly connected with the housing 1, at this time, the first constituent part 311 will be fixed relative to the housing 1 along with the component fixedly connected with the housing 1.

[0178] As shown in Figure 21 and Figure 22 The chip assembly mounting part 401 in the imaging device comprises a device first side wall 401a, a device upper wall 401b and a device lower wall 401c, which enclose a containing space 4011 capable of containing the chip assembly 300; further, the chip assembly mounting part 401 further comprises a device second side wall 401d connected with the device lower wall 401c, the device first side wall 401a and the device second side wall 401d are oppositely arranged along the first direction, the device upper wall 401b and the device lower wall 401c are oppositely arranged along the third direction, and the contact pin 403 is arranged on the device upper wall 401b.

[0179] Along the direction from back to front, the device upper wall 401b is sequentially provided with an upper front wall 401ba, an upper middle wall 401bb and an upper rear wall 401bc, and the device second side wall 401d is sequentially provided with a lower front wall 401d1 and a lower rear wall 401d2, along the third direction, the lower rear wall 401d2 is closer to the device upper wall 401b than the lower front wall 401d1, and the device upper wall 401b has an upper wall bottom surface 401b1 facing the containing space 4011, according to the shape change of the device upper wall 401b, the distance from the upper wall bottom surface 401b1 to the device lower wall 401c also changes along the third direction, as Figure 23As shown, the distance from the upper front wall 401ba to the device lower wall 401c (the distance from the upper wall bottom surface 401b corresponding to the upper front wall 401ba to the device lower wall 401c) is h1, the distance from the upper middle wall 401bb to the device lower wall 401c (the distance from the upper wall bottom surface 401b corresponding to the upper middle wall 401bb to the device lower wall 401c) is h2, and the distance from the upper rear wall 401bc to the device lower wall 401c (the distance from the upper wall bottom surface 401b corresponding to the upper rear wall 401bc to the device lower wall 401c) is h3, satisfying h1>h2, h3>h2, that is, along the mounting direction of the developing cartridge 100 (from rear to front direction), the part of the accommodation space 4011 in the third direction first decreases and then increases.

[0180] As shown in FIG. 4A, the developing cartridge 100 includes a left guide protrusion 101L and a right guide protrusion 101R. Figure 23 As shown, the range of the upper front wall 401ba extending in the second direction corresponds to the first region S1 in the third direction, the range of the upper middle wall 401bb extending in the second direction corresponds to the second region S2 in the third direction, and the range of the upper rear wall 401bc extending in the second direction corresponds to the third region S3 in the third direction. According to the above description, it can be known that the first region S1 has a height of h1 in the third direction, the second region S2 has a height of h2 in the third direction, and the third region S3 has a height of h3 in the third direction.

[0181] In the embodiment, the second component 312 can be at least a part of itself made of elastic material, or an elastic member is arranged between the second component 312 and the first component 311, so that the second component 312 is movable relative to the housing 1 under the action of external force.

[0182] Further, as shown in FIG. 4A, the developing cartridge 100 further includes a left guide protrusion 101L and a right guide protrusion 101R. Figure 15 、 Figure 16 、 Figure 17 and Figure 20 As shown, the developing cartridge 100 further includes a left guide protrusion 101L and a right guide protrusion 101R. At least one of the left guide protrusion 101L and the right guide protrusion 101R guides the developing cartridge 100 during the process of mounting the developing cartridge 100 to the drum cartridge 200 or during the process of mounting the developing cartridge 100 to the image forming device, ensuring that the developing cartridge 100 moves along a predetermined mounting track. When the developing cartridge 100 is in a state of being mounted to the drum cartridge 200 or in a state of being mounted to the image forming device, the left guide protrusion 101L and the right guide protrusion 101R are respectively matched with corresponding mounting grooves, which can be arranged in the drum cartridge 200 or in the image forming device. Finally, the developing cartridge 100 is positioned in the drum cartridge 200 or the image forming device.

[0183] Preferably, the left guide protrusion 101L and the right guide protrusion 101R are located at two ends of the housing 1 in the first direction, and can be formed on the housing 1 or on the end covers respectively located at the two ends of the housing 1, as long as the left guide protrusion 101L and the right guide protrusion 101R can play the above-mentioned guiding and positioning roles.

[0184] The installation process of the developing cartridge 100 will be described below in combination with Figure 24 、 Figure 25 and Figure 26 In one embodiment, the developing cartridge 100 is first installed to the drum cartridge 200, and the combination of the developing cartridge 100 and the drum cartridge 200 (process cartridge) is detachably installed to the image forming apparatus.

[0185] As shown in Figure 24 , in the state that the process cartridge is initially installed to the image forming apparatus, the door cover PM1 has not been closed, the chip assembly 300 is located in the first region S1, and the second component 312 abuts against the lower front wall 401d1. At this time, the second component 312 can be in an elastically deformed state or in a natural state. As the process cartridge continues to be installed in the second direction, as shown in Figure 25 , the chip assembly 300 reaches the second region S2. Since h2 Figure 26 , the chip assembly 300 reaches the third region S3. Since h2 is smaller than h3, under the elastic force released by the second component 312 or under the elastic force released by the elastic member between the second component 312 and the first component 311, the developing cartridge 100 starts to rotate around the left guide protrusion 101L and the right guide protrusion 101R, and the chip assembly 300 moves upward. Finally, the electrical contact portion 321 contacts the stylus 403, and under the elastic force, the electrical contact portion 321 and the stylus 403 are kept in the contact state. Preferably, the rotation angle of the developing cartridge 100 is in the range of 0°-20°, and preferably 5°-15°.

[0186] Preferably, under the elastic force, the rotation axis of the developing cartridge 100 coincides with the rotation axis L1 of the developing roller 21.

[0187] Whether the elastic force released by the second component 312 or the elastic force released by the elastic member between the second component 312 and the first component 311, can be regarded as an embodiment of the lifting force, and the lifting force is generated when the second component 312 moves relative to the housing 1.

[0188] As shown in Figure 26As shown, when the chip assembly 300 reaches the third region S3, the second component 312 can also abut against the lower rear wall 401d2. In this way, the first component 311 can receive greater elasticity, the developing cartridge 100 can be held more stably, and correspondingly, the electrical contact 321 and the stylus 403 can be held in contact more stably.

[0189] In some embodiments, the elastic force can also lift the entire processing box upwards, thereby enabling the electrical contact 321 to make contact with the contact pin 403.

[0190] In some embodiments, the axis of rotation of the developing cartridge about the left guide protrusion 101L and the right guide protrusion 101R coincides with the axis of rotation of the developing roller.

[0191] In some embodiments, when the elastic force lifts the entire processing box upward, the processing box rotates around the left guide protrusion 101L and the right guide protrusion 101R, thereby achieving contact between the electrical contact 321 and the contact pin 403.

[0192] In some embodiments, the elastic force can also achieve contact between the electrical contact 321 and the stylus 403 by lifting the drum box 200 upward and then driving the developing cartridge 100 upward.

[0193] (Location of electrical contacts)

[0194] like Figure 24 , Figure 25 and Figure 26 As shown, in some embodiments, the plane passing through the rotation axis L3 of the driving force receiver 3 along the direction parallel to the second direction is X. The plane X does not pass through the electrical contact portion 321. This structure can reduce the impact of the vibration generated when the driving force receiver 3 rotates on the contact between the electrical contact portion 321 and the stylus 403. Preferably, the plane X passes through the first component portion 311. As mentioned above, since the first component portion 311 is fixed relative to the housing 1, the impact of the vibration generated by the driving force receiver 3 on the first component portion 311 can be reduced.

[0195] like Figure 28 As shown, along a direction parallel to the second direction, the plane passing through the rotation axis L1 of the developing roller 21 is Y, and the plane Y is located below the plane X. At the same time, the plane passing through the rotation axis L1 and the rotation axis L2 is T. A first clamping area U1 is formed between the plane T and the plane Y, and a second clamping area U2 is formed between the plane T and the plane X. The electrical contact 321 is located in the second clamping area U2. Preferably, the electrical contact 321 is located in the first clamping area U1. This design can reduce the impact of the vibration generated when at least one of the driving force receiving member 3 and the developing roller 21 rotates on the contact between the electrical contact 321 and the stylus 403.

[0196] In some embodiments, at least a portion of the first component 311, which is fixed relative to the housing 1, is located in the second clamping region U2. This design can also reduce the impact of vibrations generated when at least one of the drive force receiver 3 and the developing roller 21 rotates on the contact between the electrical contact 321 and the stylus 403.

[0197] Along the second direction, the minimum distance j1 from the rotation axis L1 of the developing roller 21 to the chip 32 (i.e., from the front end of the chip 32 to the rotation axis L1 of the developing roller 21) is 55mm-59mm, and the minimum distance j2 from the rotation axis L1 of the developing roller 21 to the second component 312 (i.e., from the front end of the second component 312 to the rotation axis L1 of the developing roller 21) is 55mm-79mm. Along the third direction, the maximum distance j3 from the second component 312 to the electrical contact 321 is the second component 312. As mentioned above, the second component 312 is movable relative to the housing 1. When the second component 312 is in its natural state, j3 is 33mm. When the electrical contact 312 forms electrical contact with the contact pin 403, j3 is 25mm. Therefore, j3 should vary between 25mm and 33mm, i.e., 25mm≤j3≤33mm.

[0198] Along the second direction, the chip assembly 300 / electrical contact 321 is located between the forced push protrusion (specifically the left forced push protrusion 14L) and the guide protrusion (specifically the left guide protrusion 101L), wherein the guide protrusion is located in front of the chip assembly 300 / electrical contact 321 and the forced push protrusion is located behind the chip assembly 300 / electrical contact 321, which helps to ensure that the chip assembly 300 / electrical contact 321 is stably supported.

[0199] like Figure 27 As shown, the developing cartridge 100 also includes a reinforcing rib 10f extending downward from the housing 1 and a protective plate 170 covering the reinforcing rib 10f. The reinforcing rib 10f covered by the protective plate 170 is less likely to break. However, under good operating conditions, the protective plate 170 may not be required, in which case the reinforcing rib 10f is directly exposed. Thus, the protective plate 170 can be considered an accessory of the developing cartridge 100 and is detachably connected to the housing 1. When the user deems it necessary to protect the reinforcing rib 10f, the user can install the protective plate 170 onto the housing 1. Conversely, when the user deems it unnecessary to protect the reinforcing rib 10f, the protective plate 170 may not be installed, or the user can remove the protective plate 170 from the housing 1. Therefore, the developing cartridge 100 has better adaptability.

[0200] like Figure 28As shown, in some embodiments, the protection plate 170 is also provided with an avoiding hole 1701 for avoiding the irradiation of the device laser, avoiding the protection plate 170 from blocking the path of the laser irradiation and thus affecting the development.

[0201] [Example Ten]

[0202] Based on the above inventive concept, the present embodiment further provides a structure for realizing the contact between the electrical contact 321 and the stylus 403.

[0203] Firstly, in combination with Figure 30 The drum box 200 includes a drum shell 201, a left supporting protrusion 203L, a right supporting protrusion 203R, and a locking piece 205. The drum shell 201 is formed with a receiving cavity for accommodating the developing box 100. The left supporting protrusion 203L and the right supporting protrusion 203R are formed by protruding upward from the bottom plate 202 of the drum shell 201. The locking piece 205 is arranged on one side of the drum shell 201 in the first direction. Preferably, the locking piece 205 is arranged at the driving end of the drum box 200 to ensure that the developing box 100 can be locked in the drum box 200.

[0204] In some embodiments, the drum box 200 further includes a left pushing mechanism 204L and a right pushing mechanism 204R which are movable relative to the drum shell 201. When the developing box 100 is mounted to the drum box 200, the left pushing mechanism 204L pushes the left pushed piece 14L, and the right pushing mechanism 204R pushes the right pushed piece 14R, to ensure that the developing roller 21 and the photosensitive drum maintain good contact.

[0205] In the prior art, when the developing box 100 is mounted to the drum shell 201, the front of the developing box 100 is supported by the left guide protrusion 101L and the right guide protrusion 101R in the second direction, and the rear of the developing box 100 is supported by the left supporting protrusion 203L and the right supporting protrusion 203R in the first direction. The left of the developing box 100 is supported by the left guide protrusion 101L and the left supporting protrusion 203L in the first direction, and the right of the developing box 100 is supported by the right guide protrusion 101R and the right supporting protrusion 203R in the first direction. It can be seen that the developing box 100 is supported at four mutually spaced positions at the same time.

[0206] As described above, in the second direction, the left pushed piece 14L and the right pushed piece 14R are located at the rear of the developing box 100. Therefore, in some embodiments, the left pushed piece 14L and the right pushed piece 14R can also serve as supported parts supported by the left supporting protrusion 203L and the right supporting protrusion 203R, respectively. In other embodiments, the supported parts can also be parts other than the left pushed piece 14L and the right pushed piece 14R, such as a part of the shell 1 or a part of the end cover 11.

[0207] As Figure 29 shown, the chip assembly 300 in the embodiment no longer has the second component 32, or the second component 32 in the chip assembly 300 is integrally formed with the first component 31.

[0208] Unlike the prior art, the developing cartridge 100 in the embodiment has a position where it is not supported when it is installed to the drum housing 201, i.e., at the position, the developing cartridge has a preset space of movement with the drum cartridge; with reference to the position where the electrical contact 321 is located, the position where the developing cartridge 100 is not supported simultaneously satisfies that, along the first direction and the second direction, the end of the developing cartridge 100 close to the electrical contact 321, and for this reason, along the third direction, the size of the right forced pushing piece 14R is greater than the size of the left forced pushing piece 14L, which is equivalent to the size of the right forced pushing piece 14 in the third direction is increased, when the developing cartridge 100 is installed to the drum housing 201, as shown in Figure 31 , the right forced pushing piece 14R will abut against the right supporting protrusion 203R, as shown in Figure 32 , the left forced pushing piece 14L will be spaced apart from the left supporting protrusion 203L to form a space, i.e., the left forced pushing piece 14L is in a suspended state.

[0209] In the process of installing the process cartridge to the image forming device, when the chip assembly 300 reaches the second region S2, the chip assembly 300 will be abutted against the device upper wall 401b, and the developing cartridge 100 as a whole will have a tendency to rotate around the left guide protrusion 101L and the right guide protrusion 101R, due to the existence of the space, the chip assembly 300 can move downward with the housing 1, at this time, the developing cartridge 100 as a whole is twisted around the contact positions of the left guide protrusion 101L and the corresponding installation slot in the drum housing 201, the contact positions of the right guide protrusion 101R and the corresponding installation slot in the drum housing 201, and the abutment position of the right forced pushing piece 14R and the right supporting protrusion 203R as the fulcrum, and the developing cartridge 100 itself can generate a restoring force (another embodiment of the lifting force) that forces the left forced pushing piece 14L to move away from the left supporting protrusion 203L.

[0210] When the chip assembly 300 reaches the third region S3, due to the existence of h2

[0211] In the above description, along the first direction, the electric contact 321 is located at the driving end of the process cartridge 100, along the second direction, in front of the chip assembly 300 / electric contact 321, the developing cartridge 100 is supported by the left guide protrusion 101L and the right guide protrusion 101R, and in rear of the chip assembly 300 / electric contact 321, the developing cartridge 100 is supported at only one end of the two ends in the first direction, specifically, the end of the developing cartridge 100 which is not supported (the position not supported) is closer to the driving end, or in other words, in the developing cartridge 100, the end opposite to the end where the chip assembly 300 / electric contact 321 is located is supported along the first direction.

[0212] In some embodiments, along the first direction, when the electric contact 321 is located at the conductive end of the casing 1, along the second direction, in front of the chip assembly 300 / electric contact 321, the developing cartridge 100 is supported by the left guide protrusion 101L and the right guide protrusion 101R, and in rear of the chip assembly 300 / electric contact 321, the developing cartridge 100 is supported at only one end of the two ends in the first direction, specifically, the end of the developing cartridge 100 which is not supported (the position not supported) is closer to the conductive end, or in other words, in the developing cartridge 100, the end opposite to the end where the chip assembly 300 / electric contact 321 is located is supported along the first direction, thus, overall, in rear of the chip assembly 300 / electric contact, the end of the developing cartridge 100 which is not supported (the position not supported) is closer to the end where the electric contact 321 is located along the first direction.

[0213] In some embodiments, when the developing cartridge 100 is directly installed to the image forming apparatus, the left support protrusion 203L, the right support protrusion 203R, and the locking member 205 can also be provided in the image forming apparatus, and similarly, along the first direction, the end of the developing cartridge 100 which is not supported (the position not supported) is closer to the end where the electric contact 321 is located.

[0214] In the prior art, the locking member 205 has a locking portion 2051, and the developing cartridge 100 further includes a locked portion 102 for abutting against the locking portion 2051, the locked portion 102 has a locked surface 1021 facing the locking portion 2051, when the developing cartridge 100 is installed to the drum casing 201, the developing cartridge 100 is locked in the drum casing 201 by the locking portion 2051 abutting against the locked surface 1021.

[0215] Along the second direction, the chip assembly 300 / electric contact 321 is located between the locked portion 102 and the guide protrusion (specifically, the left guide protrusion 101L), wherein the guide protrusion is located in front of the chip assembly 300 / electric contact 321, and the locked portion 102 is located in rear of the chip assembly 300 / electric contact 321, which is beneficial to ensure that the chip assembly 300 / electric contact 321 is stably supported.

[0216] As Figure 33 shown, the present embodiment provides another structure to realize the contact between the electrical contact 321 and the stylus 403.

[0217] In the present embodiment, when the developing cartridge 100 is mounted to the drum housing 201, the locked surface 1021 and the locking portion 2051 are no longer in abutment with each other along the third direction, and a spacing is formed therebetween, and the developing cartridge 100 is supported at four positions spaced apart from each other.

[0218] In the process of mounting the process cartridge to the image forming device, the acting member 17 is in abutment with the guide slope 921, and the acting member 17 / developing cartridge 100 is subjected to a reaction force (another embodiment of the lifting force) applied from the guide slope 921, and the developing cartridge 100 is rotated as a whole about the left guide protrusion 101L and the right guide protrusion 101R, and due to the spacing, the developing cartridge 100 is not interfered with by the locking member 205 during the rotation, and finally, the electrical contact 321 is in electrical contact with the stylus 403.

[0219] Preferably, when the acting member 17 starts to be in abutment with the guide slope 921, the chip assembly 300 has already entered the third region S3, so that the mounting resistance of the process cartridge can be reduced.

[0220] In some embodiments, the left forced pushing member 14L can also be formed integrally with the locking portion 102, and in this case, the upper surface 14L1 of the left forced pushing member 14L is the locked surface 1021.

[0221] [Embodiment Eleven]

[0222] As Figure 34 shown, the present embodiment relates to a developing cartridge 100 further comprising a lifting member 103 connected to the housing 1, and the locked surface 1021 and the locking portion 2051 are also no longer in abutment with each other, and a spacing is formed therebetween, and before the process cartridge is mounted to the image forming device, the developing cartridge 100 is supported by at least the left guide protrusion 101L and the right guide protrusion 101R, that is, whether the left support protrusion 203L and the left forced pushing member 14L are in abutment, and whether the right support protrusion 203R and the right forced pushing member 14R are in abutment, are not limited.

[0223] After the developing cartridge 100 is mounted to the drum housing 201, the lifting member 103 is in abutment with the drum housing 201 or the image forming device (for example, the guide slope 921), and the developing cartridge 100 is lifted by being rotated about the left guide protrusion 101L and the right guide protrusion 101R, or in the process of mounting the process cartridge 100 to the image forming device, the lifting member 103 is in abutment with the image forming device (for example, the guide slope 921), and the developing cartridge 100 is lifted by being rotated about the left guide protrusion 101L and the right guide protrusion 101R, and finally, the electrical contact 321 is in electrical contact with the stylus 403.

[0224] In some embodiments, the lifting member 103 is detachably connected with the housing 1, so that the housing 1 will have more extensive applicability.

[0225] According to the above description, the lifting member 103 can also be regarded as the above-mentioned acting member 17, when the acting member 17 interacts with the acted member, at least the housing 1 moves from the first position to the second position, in the first position, the electrical contact portion 321 and the stylus 403 cannot interact, in the second position, the electrical contact portion 321 and the stylus 403 can interact.

[0226] In some embodiments, the right forced pushing member 14R in the third direction dimension is enlarged in the embodiment fourteen and the above-mentioned lifting member 103 can also be provided at the same time to further ensure that the developing cartridge 100 is stably supported.

[0227] In the above-mentioned embodiments, the developing cartridge 100 is provided to rotate around the left guide protrusion 101L and the right guide protrusion 101R, thus, the rotation of the left guide protrusion 101L and the right guide protrusion 101R can be regarded as the rotation support portion of the developing cartridge 100, preferably, the rotation axis L1 of the developing roller 21 passes through the left guide protrusion 101L and the right guide protrusion 101R, more preferably, the rotation axis of the developing cartridge 100 coincides with the rotation axis L1.

[0228] However, according to the above-mentioned inventive concept, the developing cartridge 100 can also rotate around other positions of the developing cartridge, for example, different rotation support portions from the left guide protrusion 101L and the right guide protrusion 101R are additionally provided in the developing cartridge, as long as the electrical contact of the electrical contact portion 321 and the stylus 403 can be achieved; the rotation support portion also does not necessarily have a guide function, and the number of rotation support portions is not necessarily limited, which can be one, two, or more than two.

[0229] It should be understood that, under the inventive concept of the present embodiment, when the chip assembly 300 reaches the second region S2 or the third region S3, under the action of external force, the processing cartridge as a whole can also move, that is, the developing cartridge 100 moves together with the drum cartridge 200, in the process of movement, the electrical contact portion 321 is still inactivity relative to the housing 1, correspondingly, the spacing space is formed between the drum housing 201 and the image forming equipment, finally, the electrical contact portion 321 and the stylus 403 form electrical contact.

[0230] Accordingly, along the first direction, the end of the developing cartridge 100 and / or the drum cartridge 200 that is not supported (the unsupported position) is closer to the end where the electrical contact 321 is located (which can be referred to as the active end), and at the active end, there is a spacing between the developing cartridge 100 and the drum cartridge 200 that allows the developing cartridge 100 to move, or there is a spacing between the drum cartridge 200 and the image forming device that allows the drum cartridge 200 to move, and because the developing cartridge 100 is supported by the drum cartridge 200, the developing cartridge 100 can move with the drum cartridge 200, and ultimately, this design enables the developing cartridge 100 to move at the active end.

[0231] In some embodiments, along the third direction, the spacing overlaps the chip.

[0232] In some embodiments, the developing cartridge and the drum cartridge have a spacing that overlaps the chip in the third direction.

[0233] Based on the inventive concept of the present application, a person skilled in the art can also use any two or more technical solutions in Embodiments 13-16 in combination to achieve better technical effects.

[0234] [Embodiment 12]

[0235] Similar to Embodiment 16, as shown in Figure 35 and Figure 36 , the developing cartridge 100 in the present embodiment is also provided with a lifting member 103 that is connected with the housing 1 or the end cover 11 and is used to receive a lifting force to force at least the developing cartridge 100 / housing 1 to move from the first position to the second position, and when the developing cartridge 100 / housing 1 reaches the second position, the chip assembly 300 / electrical contact 321 is in electrical contact with the stylus 403.

[0236] As shown in Figure 39 , the chip assembly mounting portion 401 in the image forming device PM also includes the device upper wall 401b and the device lower wall 401c, and the stylus 403 is arranged on the device upper wall 403, and the door cover PM1 of the image forming device is provided with a lifting protrusion PM2, and as the image forming device door cover PM1 is closed, the lifting protrusion PM2 abuts against the lifting member 103, thereby forcing the developing cartridge 100 to rotate around the left guide protrusion 101L and the right guide protrusion 101R, and ultimately, the electrical contact 321 is in electrical contact with the stylus 403 and remains in contact.

[0237] In some embodiments, the drum cartridge 200 is also provided with a chip assembly 206, and for this reason, the chip assembly 300 in the developing cartridge 100 can be referred to as a first chip assembly, the electrical contact 321 in the chip assembly 300 can be referred to as a first electrical contact, the chip assembly 206 in the drum cartridge 200 can be referred to as a second chip assembly, the second electrical contact 2061 is provided in the second chip assembly 206, and correspondingly, the stylus 403 in the image forming device for forming an electrical contact with the first electrical contact 321 can be referred to as a first stylus, the stylus 404 in the image forming device for forming an electrical contact with the second electrical contact 2061 can be referred to as a second stylus, and the second stylus 404 is also provided on the device upper wall 401b.

[0238] When the lifting piece 103 abuts against the lifting protrusion PM2, the developing cartridge 100 can be forced first, and then the drum cartridge 200 is moved together from the first position to the second position, or the lifting piece 103 can be directly provided in the drum cartridge 200, at this time, the drum cartridge 200 will be forced first, and then the drum cartridge 200 drives the developing cartridge 100 to move together from the first position to the second position, finally, the first electrical contact 321 forms an electrical contact with the first stylus 403, and the second electrical contact 2061 forms an electrical contact with the second stylus 404.

[0239] As shown in Figure 37 , the lifting piece 103 includes a reinforcing portion 1031 and a forced pushing portion 1032 connected to each other, the forced pushing portion 1032 has a forced pushing surface 1033 for receiving a forced pushing force (one of external forces) applied by the lifting protrusion PM2, and the reinforcing portion 1031 has an outer side surface 1034 for connecting with the forced pushing surface 1033, a first included angle α1 is formed between the forced pushing surface 1033 and the outer side surface 1034, and satisfies 90°≤α1≤100°, and preferably 95°, so that not only the structure of the lifting piece 103 is strengthened, but also the forced pushing surface 1033 can smoothly receive the forced pushing force.

[0240] Continuing as shown in Figure 37 , a first plane Y1 passes through the rotation axis L1 of the developing roller 21 and the rotation axis L4 of the powder feeding roller 22, and a second plane Y2 is formed extending from the forced pushing surface 1032, the first plane Y1 and the second plane Y2 intersect, and a second included angle α2 is formed between them, and satisfies 90°≤α2≤120°.

[0241] As shown in Figure 38As shown, the drum housing 201 is provided with a communication groove 2014, which communicates the accommodating cavity and the outside of the drum cartridge in the first direction. When the developing cartridge 100 is mounted to the drum cartridge 200, at least a part of the electrical contact portion 321 is opposite to the communication groove 2014 in the third direction, assuming that the third plane Y3 passes the electrical contact portion 321 and the fourth plane Y4 passes the lowest point D of the communication groove 2014, and the third plane Y3 and the fourth plane Y4 are parallel to each other.

[0242] The minimum distance h5 between the third plane Y3 and the fourth plane Y4 is 30mm-40mm, preferably 36mm, before the door cover PM1 of the image forming device is closed, or before the lifting member 103 receives the lifting force, or before the developing cartridge 100 is lifted; and the minimum distance h5 between the third plane Y3 and the fourth plane Y4 is 30mm-50mm, preferably 41mm, after the door cover PM1 of the image forming device is closed, or after the lifting member 103 receives the lifting force and is lifted to the predetermined position, or after the developing cartridge 100 is lifted.

[0243] In this embodiment, the rotation angle of the developing cartridge 100 is in the range of 0°-20°, preferably 5°-15°, when the door cover is closed.

[0244] [Embodiment Thirteen]

[0245] Based on the inventive concept of Embodiment Nine, this embodiment continues to optimize the structure of the chip assembly 300, and therefore, the same components as those in the above embodiments will be directly quoted as Figure 40 As shown, the chip assembly 300 involved in this embodiment includes the chip holder 31 and the chip 32, the chip 32 has the electrical contact portion 321 for electrical connection / electrical contact with the stylus 403 in the image forming device, and at least the electrical contact portion 321 is supported by the chip holder 31; the chip 32 further includes the substrate 324, and the electrical contact portion 321 can be provided on the substrate 324 or provided separately from the substrate 324, and the following will be described by taking the example that the electrical contact portion 321 is provided on the substrate 324.

[0246] Continue as Figure 41-48As shown, the chip holder 31 comprises a fixed support frame 313, an extendable support rod 314, a spring, and a chip base 316, wherein the spring is a buffer spring 315. The fixed support frame 313 is arranged immovable relative to the end cover 11 along the third direction. The electrical contact 321 is directly or indirectly supported by the chip base 316. The left side of the chip base 316 is fixedly connected to the right side of the fixed support frame 313 along the first direction, preferably, the chip base 316 is integrally formed with the fixed support frame 313. The chip base 316 comprises a chip support column 3161 and a chip embedding seat 3162 along the third direction. The right side of the fixed support frame 313 is fixedly connected to the left side of the chip support column 3161 along the third direction. The bottom of the chip embedding seat 3162 is connected to the top of the chip support column 3161. The substrate 324 of the chip 32 is embedded into the chip embedding seat 3162. The electrical contact 321 slightly protrudes above the top of the chip embedding seat 3162. The bottom of the chip embedding seat 3162 is connected to the top end of the buffer spring 315. The extendable support rod 314 is provided with a positioning slot, and the positioning slot is provided with a positioning column. The bottom end of the buffer spring 315 is embedded into the positioning slot and is sleeved on the positioning column. The bottom end of the extendable support rod 314 protrudes from the bottom end of the fixed support frame 313. Along the first direction, the bottom end of the extendable support rod 314 is provided with limiting portions 3141 on both sides, and a guide slot 3142 is formed between the two limiting portions 3141, which is used for guiding sliding on the second side wall 401d. The intersection of the left side along the first direction and the rear side along the second direction of the chip embedding seat 3162 is provided with a guide portion 3163, which is chamfered or beveled. By arranging the guide portion 3163, interference between the chip embedding seat 3162 and the side edge 4012a1 of the through slot 4012 on the first side wall 401a of the chip assembly mounting portion 401 during the process of taking out the combination of the developing cartridge 100 and the drum cartridge 200 (the process cartridge) from the image forming device is avoided, and the smoothness of taking out the developing cartridge is improved.

[0247] As shown in Figure 47 The chip assembly mounting portion 401 in the image forming device comprises a first side wall 401a, an upper device wall 401b, a lower device wall 401c, and a second side wall 401d. The first side wall 401a, the upper device wall 401b, and the lower device wall 401c enclose a containing space 4011 capable of containing the chip assembly 300. The upper device wall 401b and the lower device wall 401c are arranged opposite to each other along the third direction. The stylus 403 is arranged on the upper device wall 401b.

[0248] As shown in Figure 47 and 48As shown, along the direction from rear to front, the upper wall 401b of the device is sequentially provided with an upper rear wall 401ba, an upper middle wall 401bb and an upper front wall 401bc, and the lower wall 401c of the device is sequentially provided with a lower front wall 401ca, a lower middle wall 401cb and a lower rear wall 401cc. According to the shape change of the upper wall 401b of the device, along the third direction, the distance from the upper wall bottom surface 401ba to the lower wall 401c of the device also changes, as shown in the figure, the distance from the upper front wall 401ba to the lower front wall 401ca is h4, the distance from the upper middle wall 401bb to the lower middle wall 401cb is h5, and the distance from the upper rear wall 401bc to the lower rear wall 401cc is h6, which satisfy h4>h5, h5<h6, that is, along the installation direction of the developing cartridge 100 (the direction from rear to front), the size of the accommodating space 4011 in the third direction first decreases and then increases. Figure 49 As shown, along the direction from rear to front, the upper wall 401b of the device is sequentially provided with an upper rear wall 401ba, an upper middle wall 401bb and an upper front wall 401bc, and the lower wall 401c of the device is sequentially provided with a lower front wall 401ca, a lower middle wall 401cb and a lower rear wall 401cc. According to the shape change of the upper wall 401b of the device, along the third direction, the distance from the upper wall bottom surface 401ba to the lower wall 401c of the device also changes, as shown in the figure, the distance from the upper front wall 401ba to the lower front wall 401ca is h4, the distance from the upper middle wall 401bb to the lower middle wall 401cb is h5, and the distance from the upper rear wall 401bc to the lower rear wall 401cc is h6, which satisfy h4>h5, h5<h6, that is, along the installation direction of the developing cartridge 100 (the direction from rear to front), the size of the accommodating space 4011 in the third direction first decreases and then increases.

[0249] As shown, along the direction from rear to front, the upper wall 401b of the device is sequentially provided with an upper rear wall 401ba, an upper middle wall 401bb and an upper front wall 401bc, and the lower wall 401c of the device is sequentially provided with a lower front wall 401ca, a lower middle wall 401cb and a lower rear wall 401cc. According to the shape change of the upper wall 401b of the device, along the third direction, the distance from the upper wall bottom surface 401ba to the lower wall 401c of the device also changes, as shown in the figure, the distance from the upper front wall 401ba to the lower front wall 401ca is h4, the distance from the upper middle wall 401bb to the lower middle wall 401cb is h5, and the distance from the upper rear wall 401bc to the lower rear wall 401cc is h6, which satisfy h4>h5, h5<h6, that is, along the installation direction of the developing cartridge 100 (the direction from rear to front), the size of the accommodating space 4011 in the third direction first decreases and then increases. Figure 48 As shown, along the direction from rear to front, the upper wall 401b of the device is sequentially provided with an upper rear wall 401ba, an upper middle wall 401bb and an upper front wall 401bc, and the lower wall 401c of the device is sequentially provided with a lower front wall 401ca, a lower middle wall 401cb and a lower rear wall 401cc. According to the shape change of the upper wall 401b of the device, along the third direction, the distance from the upper wall bottom surface 401ba to the lower wall 401c of the device also changes, as shown in the figure, the distance from the upper front wall 401ba to the lower front wall 401ca is h4, the distance from the upper middle wall 401bb to the lower middle wall 401cb is h5, and the distance from the upper rear wall 401bc to the lower rear wall 401cc is h6, which satisfy h4>h5, h5<h6, that is, along the installation direction of the developing cartridge 100 (the direction from rear to front), the size of the accommodating space 4011 in the third direction first decreases and then increases.

[0250] As shown, along the direction from rear to front, the upper wall 401b of the device is sequentially provided with an upper rear wall 401ba, an upper middle wall 401bb and an upper front wall 401bc, and the lower wall 401c of the device is sequentially provided with a lower front wall 401ca, a lower middle wall 401cb and a lower rear wall 401cc. According to the shape change of the upper wall 401b of the device, along the third direction, the distance from the upper wall bottom surface 401ba to the lower wall 401c of the device also changes, as shown in the figure, the distance from the upper front wall 401ba to the lower front wall 401ca is h4, the distance from the upper middle wall 401bb to the lower middle wall 401cb is h5, and the distance from the upper rear wall 401bc to the lower rear wall 401cc is h6, which satisfy h4>h5, h5<h6, that is, along the installation direction of the developing cartridge 100 (the direction from rear to front), the size of the accommodating space 4011 in the third direction first decreases and then increases. Figure 50 The following

[0251] Figure 51 , 52 -54 describes the installation process of the developing cartridge 100. In an embodiment, the developing cartridge 100 is first installed to the drum cartridge 200, and the combination of the developing cartridge 100 and the drum cartridge 200 (processing cartridge) is then installed to the image forming device in a detachable manner.

[0252] As shown, along the direction from rear to front, the upper wall 401b of the device is sequentially provided with an upper rear wall 401ba, an upper middle wall 401bb and an upper front wall 401bc, and the lower wall 401c of the device is sequentially provided with a lower front wall 401ca, a lower middle wall 401cb and a lower rear wall 401cc. According to the shape change of the upper wall 401b of the device, along the third direction, the distance from the upper wall bottom surface 401ba to the lower wall 401c of the device also changes, as shown in the figure, the distance from the upper front wall 401ba to the lower front wall 401ca is h4, the distance from the upper middle wall 401bb to the lower middle wall 401cb is h5, and the distance from the upper rear wall 401bc to the lower rear wall 401cc is h6, which satisfy h4>h5, h5<h6, that is, along the installation direction of the developing cartridge 100 (the direction from rear to front), the size of the accommodating space 4011 in the third direction first decreases and then increases. Figure 52 ​As shown, the developing cartridge 100 is mounted to the drum cartridge 200 to form an assembly (processing cartridge) of the developing cartridge 100 and the drum cartridge 200. Figure 40 , 49 As shown in Figure 53, when the processing box is initially installed in the imaging device, the chip assembly 300 is located between the upper rear wall 401ba and the lower front wall 401ca. The chip assembly 300 is in a non-contact state or a non-aggressive state with the lower front wall 401ca and the upper rear wall 401ba, or it can be in a natural state. Figure 42 , 46 As shown in 49 and 54, as the processing box continues to be installed forward along the second direction, the chip assembly 300 enters between the upper middle wall 401bb and the lower middle wall 401cb. In the third direction, the distance between the upper middle wall 401bb and the lower middle wall 401cb is smaller than the distance between the upper rear wall 401ba and the lower front wall 401ca (i.e., the distance between the upper upper wall 401b and the lower lower wall 401c of the device becomes smaller). The chip base 316 of the chip assembly 300 abuts against the upper middle wall 401bb, and the telescopic support rod 314 of the chip assembly 300 abuts against the lower middle wall 401cb, causing the buffer spring 315 to be compressed. As the processing box continues to be installed forward along the second direction, when the chip assembly 300 is located between the upper front wall 401bc and the lower rear wall 401cc, the distance between the upper front wall 401bc and the lower rear wall 401cc is greater than the distance between the upper middle wall 401bb and the lower middle wall 401cb (that is, the distance between the upper upper wall 401b and the lower wall 401c of the device becomes larger), and in the third direction, the position of the upper front wall 401bc is higher than that of the upper middle wall 401bb. The buffer spring 315 pushes the chip base 316 to move upward. In the second direction, the front end of the processing box is centered on the photosensitive drum axis L5, while the rear end of the processing box moves upward along the third direction. That is, the entire processing box rotates upward in the third direction around the photosensitive drum axis L5 as the axis, so that the chip base 316 can electrically connect the chip 32 and the contact pin 403.

[0253] [Example Fourteen]

[0254] Based on the inventive concept of Embodiment Eleven, this embodiment further optimizes the structure of the lifting member 103. Therefore, components identical to those in the above embodiments will be directly referenced, such as... Figure 21 , Figure 22 , Figure 55 and Figure 56As shown, the lifting piece 103 of the present embodiment is arranged on the same side of the chip assembly 300, and further, the lifting piece 103 is arranged adjacent to the chip assembly 300. With reference to the shell 1, the chip assembly 300 is fixedly arranged, and the chip assembly 300 comprises a mounting frame 31 and a chip 32. An elastic pad is arranged between the mounting frame 31 and the chip 32, and the elastic pad can be a silica gel pad, a sponge pad, etc. The elastic pad can provide a certain movement space for the chip 32, so as to ensure good electrical connection with the contact pin in the image forming device.

[0255] The lifting piece 103 comprises a lifting block 1031 directly or indirectly connected with the shell 1. The surface of the lifting block 1031 abutting against the mounting portion 401 can be an arc surface or a plane. At least one end of the arc surface or the plane is provided with a round corner or a chamfer in the second direction, so that the lifting block 1031 can slide more smoothly. The lifting block 1031 is arranged between the driving force receiving piece 3 and the chip assembly 300. Preferably, the lifting block 1031 is arranged at the middle position of the connecting straight line L6 connecting the rotation axis L1 of the developing roller 21 and the center of the chip 32 in the third direction. Further, the lifting block 1031 is arranged below the connecting straight line L6 in the third direction, so as to avoid damage of the lifting block 1031 caused by excessive extrusion force.

[0256] The lifting piece 103 comprises a second connecting portion 1032 directly or indirectly connected with the shell 1, and the lifting block 1031 connected with the second connecting portion 1032. For example, the second connecting portion 1032 is connected with the end cover 11, or the second connecting portion 1032 passes through the end cover 11 and is connected with the shell 1. The lifting block 1031 and the second connecting portion 1032 can be directly or indirectly connected with the shell 1 together, or only the second connecting portion 1032 is directly or indirectly connected with the shell 1, and the lifting block 1031 is separately arranged outside the shell 1 and the end cover 11. The second connecting portion 1032 and the lifting block 1031 can be integrally formed, or can be separately designed. When the second connecting portion 1032 and the lifting block 1031 are separately designed, the second connecting portion 1032 and the lifting block 1031 can be made of different materials. The lifting block 1031 can be made of wear-resistant and self-lubricating materials. Preferably, the lifting block 1031 is in an arc shape, the second connecting portion 1032 is provided with a plurality of reinforcing ribs, and the second connecting portion 1032, the lifting block 1031 and the end cover 11 are integrally formed.

[0257] For example, Figure 21 and Figure 22As shown, when the developing cartridge 100 is installed into the drum cartridge 200, along a third direction, the locking surface 1021 is locked between the locking portions 2051, and there is a certain amount of space between the locking surface 1021 and the locking portions 2051. The developing cartridge 100 as a whole can rotate around the left guide protrusion 101L and the right guide protrusion 101R. The developing cartridge 100 includes a left forced push member 14L and / or a right forced push member 14R. The left forced push member 14L abuts against the left forced push mechanism 204L. The surfaces that abut against the right forced pusher 14R and the right forced push mechanism 204R can be arc-shaped, flat, or a combination of arc-shaped and flat. The shapes of the left forced pusher 14L and the right forced pusher 14R may be the same or different. Preferably, the surfaces that abut against the left forced pusher 14L and the left forced push mechanism 204L are arc-shaped, and the surfaces that abut against the right forced pusher 14R and the right forced push mechanism 204R are arc-shaped, which allows the developing cartridge 100 to rotate more smoothly. When the processing cartridge is installed into the mounting part 401 of the imaging device, the lifting block 1031 slides along the lower front wall 401d1, is lifted past the lower rear wall 401d2, and is engaged in the support position 401d3. At this point, the developing cartridge 100 completes the rotation and lifting action, and the chip assembly 300 is lifted to the upper rear wall 401bc. The chip assembly 300 then completes the electrical connection with the contact pin of the imaging device.

[0258] like Figure 57 As shown, in some embodiments, the lifting member is a spring-loaded member 1034, which is disposed between the housing 1 and the drum cassette 200. Specifically, in a third direction, a force is applied downward to press the developing cartridge 100 (the force can come from the mounting part 401 of the imaging device or other components), which can lower the height of the developing cartridge 100, causing the developing cartridge 100 to move downward. When the external force is removed, the developing cartridge 100 will return to its original position. The spring-loaded member 1034 can be a structural component made of elastic material or an elastic structure with an elastic element. Specifically, the spring-loaded member 1034 includes a spring-loaded part 1035 movably connected to the housing 1, and an elastic element is disposed between the spring-loaded part 1035 and the housing 1. The elastic element can be a tension spring, a compression spring, or a spring sheet, etc., so that the spring-loaded part 1035 maintains a downward movement tendency. When the processing cartridge is installed into the mounting section 401 of the imaging device, the chip assembly 300 enters along the upper front wall 401ba and passes through the upper middle wall 401bb. It is subjected to the squeezing force of the upper middle wall 401bb, the spring member 1034 is compressed, the developing cartridge 100 is pressed down, the chip assembly 300 slides into the upper rear wall 401bc and then springs back, completing the electrical connection with the contact pin of the imaging device.

[0259] In some embodiments, the lifting member 103 is arranged at a rear portion of the housing 11 along the second direction. The lifting member 103 can be arranged on the drum cartridge 200 or the housing 11. The lifting member 103 is used to lift the height of the developing cartridge 100, so that a spacing is formed between the developing cartridge 100 and the drum cartridge 200. When the developing cartridge 100 is pressed, the developing cartridge 100 is deformed, and the position of the chip assembly 300 is lowered. The housing 11 is provided with the lifting member 103. The lifting member 103 can be arranged on the bottom or side of the housing 1. The lifting member 103 abuts against the drum cartridge 200, thereby supporting the developing cartridge 100, so that the chip assembly 300 can be electrically connected to the stylus of the image forming apparatus.

[0260] The lifting member 103 is arranged on the bottom of the housing 11. The lifting member 103 is a protrusion. The surface of the protrusion abutting against the drum cartridge 200 is a smooth surface. The number of the protrusions is at least one. Preferably, at least one protrusion is arranged close to the chip assembly 300, so as to ensure that the chip assembly 300 is in good electrical connection with the stylus of the image forming apparatus.

[0261] The lifting member 103 is arranged on the side of the housing 1. The lifting member 103 is a support extending along the side of the housing 1 towards the drum cartridge 200. The support abuts against the drum cartridge 200, thereby supporting the developing cartridge 100, so that the chip assembly 300 can be electrically connected to the stylus of the image forming apparatus. When the process cartridge is installed into the mounting portion 401 of the image forming apparatus, the chip assembly 300 enters along the upper front wall 401ba and passes through the upper middle wall 401bb. The chip assembly 300 is pressed by the upper middle wall 401bb. The housing 1 is deformed as a whole. The chip assembly 300 slides into the upper rear wall 401bc and rebounds. The electrical connection between the chip assembly 300 and the stylus of the image forming apparatus is completed.

[0262] In some embodiments, along the third direction, the end cover 11 can be elastically deformed downwards, and the chip assembly 300 can be displaced correspondingly with the deformation of the end cover 11. Specifically, when the upper portion of the end cover 11 is pressed, the end cover 11 is deformed downwards and has a tendency to rebound upwards. That is, when the end cover 11 is deformed downwards, the chip assembly 300 is also displaced downwards with the deformation of the end cover 11. When the end cover 11 returns to the original state, the chip assembly 300 also returns to the original position. The end cover 11 includes a deformed portion. The deformed portion can be an elongated structure or a thin-walled structure, or a structure in which a gap is arranged below the deformed portion. The chip assembly 300 is connected to the deformed portion. When the process cartridge is installed into the mounting portion 401 of the image forming apparatus, the chip assembly 300 enters along the upper front wall 401ba and passes through the upper middle wall 401bb. The chip assembly 300 is pressed by the upper middle wall 401bb. The end cover 11 is deformed, so that the chip assembly 300 slides into the upper rear wall 401bc and rebounds. The electrical connection between the chip assembly 300 and the stylus of the image forming apparatus is completed.

[0263] In some embodiments, when the developing cartridge 100 is installed to the drum cartridge 200, the locking surface 1021 is locked to the locking portion 2051 in the third direction, and there is no movement space between the locking surface 1021 and the locking portion 2051, that is, when the developing cartridge 100 is locked to the drum cartridge 200, the developing cartridge 100 as a whole cannot rotate around the left guide protrusion 101L and the right guide protrusion 101R. When the processing cartridge is installed to the mounting portion 401 of the image forming device, the lifting block 1031 slides along the lower front wall 401d1, passes through the lower rear wall 401d2, is lifted and clamped into the support position 401d3, and the entire processing cartridge rotates around the photosensitive drum axis L5 as the axis in the third direction, completes the rotating lifting action, and the chip assembly 300 and the contact pin of the image forming device complete the electrical connection.

Claims

1. A developing cartridge adapted for an image forming apparatus provided with a stylus, characterized by, The developing cartridge comprises: a housing including reinforcing ribs formed by extending downward from an outer surface of the housing and a protection plate covering the reinforcing ribs; a developing roller rotatably disposed in the housing and having a rotation axis extending in a first direction; a chip assembly having an electrical contact portion for electrically contacting the stylus, the electrical contact portion being immovable relative to the housing; when the developing cartridge directly or indirectly receives an external force, the electrical contact portion moves together with the housing to achieve electrical contact between the electrical contact portion and the stylus.

2. The process cartridge according to claim 1, wherein, The developing cartridge is provided with a rotation support portion, when the developing cartridge receives a lifting force from itself or an external source, the electrical contact portion forms electrical contact with the stylus as the developing cartridge as a whole rotates around the rotation support portion.

3. The process cartridge of claim 2 wherein, The chip assembly further comprises a chip holder including a first constituent part and a second constituent part, the first constituent part is located above the second constituent part in a third direction intersecting the first direction, the electrical contact portion is supported by the first constituent part, and the first constituent part is fixedly arranged relative to the housing, the second constituent part is movably arranged relative to the housing, and the lifting force is generated when the second constituent part moves relative to the housing.

4. The process cartridge of claim 3 wherein, The developing cartridge further comprises a driving force receiving member for receiving a driving force from the image forming apparatus to drive the developing roller to rotate, a plane M passing through the rotation axis of the driving force receiving member in a direction parallel to a second direction intersecting both the first direction and the third direction, the plane M passing through the first constituent part.

5. The process cartridge of claim 3 wherein, The developing cartridge further comprises a driving force receiving member for receiving a driving force from the image forming apparatus to drive the developing roller to rotate, a plane M passing through the rotation axis of the driving force receiving member in a direction parallel to a second direction intersecting both the first direction and the third direction, a plane N passing through the rotation axis of the developing roller, the plane N being located below the plane M, and a plane T passing through the rotation axis of the developing roller and the rotation axis of the driving force receiving member; a first clamping region U1 is formed between the plane T and the plane N, and the electrical contact portion is located in the first clamping region U1; a second clamping region U2 is formed between the plane T and the plane M, and at least a portion of the first constituent part is located in the second clamping region U2.

6. The process cartridge of claim 2, wherein, The developing cartridge further comprises a left guide protrusion and a right guide protrusion, the left guide protrusion and the right guide protrusion are respectively located at two ends of the housing in the first direction, at least one of the left guide protrusion and the right guide protrusion guides the developing cartridge during installation of the developing cartridge, and the rotation support portion is at least one of the left guide protrusion and the right guide protrusion; in the second direction, the developing roller is located in front, the front of the developing cartridge is supported by the left guide protrusion and the right guide protrusion, and the rear of the developing cartridge is supported by a supported portion in the developing cartridge; in the first direction, one of the two ends of the developing cartridge is supported and the other end is not supported behind the electrical contact portion, and the supported end and the electrical contact portion are oppositely arranged in the first direction.

7. The process cartridge of claim 2, wherein, The imaging device comprises a mounting cavity for accommodating the developing cartridge and a guide rail arranged adjacent to the mounting cavity, the guide rail being used for guiding the developing cartridge during installation of the developing cartridge towards the imaging device; the lifting force is generated by the guide rail; the developing cartridge further comprises a locked portion for cooperating with an external locking member to lock the developing cartridge, when the developing cartridge is installed, the locking member is not in contact with the locked portion, and a spacing space is formed therebetween in a third direction intersecting the first direction.

8. The process cartridge of claim 2, wherein, Under the action of the external force, the angle of rotation of the developing cartridge is within a range of 0°-20°.

9. The process cartridge of claim 1, wherein, The developing cartridge further comprises a lifting member for receiving the external force, the lifting member comprising a reinforcing portion and a forced pushing portion connected to each other, the forced pushing portion having a forced pushing surface for receiving the external force, and the reinforcing portion having an outer surface for connecting to the forced pushing surface, a first included angle a1 being formed between the outer surface and the forced pushing surface, and 90°≤a1≤100°.

10. The developer cartridge of claim 1, wherein, The developing cartridge comprises a driving force receiving member for receiving a driving force from the imaging device to drive the developing roller to rotate, and further comprises an imaginary plane, the imaginary plane passing through a rotation axis of the developing roller and a rotation axis of the driving force receiving member, and at least a portion of the chip assembly is located below the imaginary plane.

11. The process cartridge of claim 10 wherein, The chip holder comprises a fixed support frame, an extendable support rod and a chip base, the electrical contact portion is supported by the chip base, the chip base is immovable relative to the fixed support frame, the chip base is connected to one end of the extendable support rod, and the housing is mounted to the end cover.

12. The process cartridge of claim 10 wherein, The developing cartridge is detachably installed in the drum cartridge, the drum cartridge is provided with a photosensitive drum, and the photosensitive drum has an axis extending along a second direction; wherein, With the drum cartridge continuing to be installed forward along the second direction, the chip assembly enters between the upper middle wall and the lower middle wall of the chip assembly mounting portion of the imaging device, the distance between the device upper wall and the device lower wall of the chip assembly mounting portion becomes smaller, the two ends of the chip assembly are respectively in abutment with the device upper wall and the device lower wall, and the elastic member of the chip assembly is compressed; with the developing cartridge continuing to be installed forward along the second direction, the chip assembly enters between the upper front wall and the lower rear wall of the chip assembly mounting portion, the distance between the device upper wall and the device lower wall of the chip assembly mounting portion becomes larger, and the upper front wall is located above the upper middle wall in front, the elastic member pushes the chip base of the chip assembly to move upward, the chip base drives the drum cartridge to rotate in a third direction with the axis of the photosensitive drum as the axis, and electrical contact is formed between the electrical contact portion and the stylus.

13. The process cartridge of claim 1, wherein, The developing cartridge further comprises a lifting member, the lifting member comprising a second connecting portion directly or indirectly connected to the housing, and a lifting block connected to the second connecting portion.

14. The process cartridge of claim 13 wherein, The lifting block is in an arc shape, the second connecting portion is a plurality of reinforcing ribs, and the second connecting portion and the lifting block are connected to the end cover.

Images