Developing cartridge

Abstract

The utility model relates to a developing box which is detachably arranged in imaging equipment provided with a detected piece and an acted piece. The developing box comprises a shell, a developing box cover and a driving device, a developing roller rotatably disposed in the housing and having a rotation axis extending in a first direction; the detection piece is used for interacting with a detected piece, so that the parameter information of the developing box is obtained by the imaging equipment; the acting piece is used for interacting with the acted piece, so that at least the shell moves from the first position to the second position; in the first position, the detection piece and the detected piece cannot interact with each other, in the second position, the detection piece and the detected piece can interact with each other, and the design can simplify the structure of the developing box.

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, the powder feeding roller is used to deliver the toner to the developing roller, and 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 for the imaging device to know whether the developing box is installed, the model, the service life and other information, the developing box is also provided with a detection device, and the imaging device is provided with a detected member for interacting with the detection device. With the driving force received by the driving force receiving member, the detection device starts to work. When the detection device interacts with the detected member, the detection process is completed, and the detection device stops working. The developing box continues to develop.

[0004] In the existing detection device, a detection member that can move along the rotation axis of the developing roller is arranged. The developing box housing is provided with a spiral protrusion. During the detection process, the detection member gradually moves away from the developing box housing along the spiral protrusion. When the detection is completed, the detection member is separated from the spiral protrusion. Generally, the spiral protrusion is formed integrally with the developing box housing and protrudes from the developing box housing. The developing box housing with this structure is easy to be broken by external force during transportation. UTILITY MODEL CONTENTS

[0005] The utility model further develops the prior art to solve at least one of the above technical problems, in particular:

[0006] The developing box is detachably installed in the imaging device provided with the detected member and the acted member. The developing box comprises:

[0007] The housing;

[0008] The developing roller is rotatably arranged in the housing and has a rotation axis extending in the first direction;

[0009] The detection member is used to interact with the detected member, so that the parameter information of the developing box is known by the imaging device;

[0010] The acting member is used to interact with the acted member, so that at least the housing moves from the first position to the second position;

[0011] The detection member and the detected member are unable to interact with each other in the first position, and are able to interact with each other in the second position.

[0012] In some embodiments, along the first direction, the installation cavity of the image forming device is provided with a side plate, and along the second direction, the side plate extends in a non-straight line; the acting member is an abutting member abutting against the inclined surface, the abutting member protrudes from the housing to form a protrusion; during the installation of the developing cartridge along the second direction, the abutting member abuts against the inclined surface to cause the housing to move from the first position to the second position.

[0013] In some embodiments, the side plate is arranged on the right side of the installation cavity; along the first direction, the housing comprises a driving end at one end and a conductive end at the other end; the abutting member is arranged to extend from the driving end to the conductive end and protrude to the right from the right side wall.

[0014] In some embodiments, the side plate is arranged on the left side of the installation cavity; along the first direction, the housing comprises a driving end at one end and a conductive end at the other end; the abutting member is arranged to extend from the driving end to the conductive end and protrude to the left from the left side wall.

[0015] In some embodiments, the abutting member is movably arranged relative to the housing.

[0016] In some embodiments, the developing cartridge further comprises a driving force receiving member for receiving a driving force from the image forming device, and the acting member is an abutting member that rotates as the driving force receiving member receives the driving force; the acted-upon member is a protrusion arranged on the side plate and protruding towards the installation cavity.

[0017] In some embodiments, the abutting member comprises an abutting protrusion provided with an abutting surface, the abutting surface being arranged as an inclined surface or a helical surface.

[0018] In some embodiments, the detected member is a stylus in the image forming device, and the developing cartridge further comprises a chip assembly for establishing a communication connection with the image forming device, and the detection member is an electrical contact portion in the chip assembly for contacting the stylus.

[0019] The acting member is an abutting member arranged in the developing cartridge, and under the action of the abutting member and the acted-upon member, the housing moves along a third direction from a first position to a second position; wherein the first direction and the second direction both intersect the third direction.

[0020] In some embodiments, the image forming device comprises an installation cavity and a guide rail arranged adjacent to the installation cavity, the installation cavity being used at least for accommodating the developing cartridge, and the acted-upon member is a guide inclined surface arranged in the guide rail.

[0021] In some embodiments, the acting member is a magnetic member arranged in the developing cartridge, and the acted member is a metal member arranged in the image forming device.

[0022] As described above, the developing cartridge provided by the present application can simplify the structure of the developing cartridge. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1A And Figure 1B is a perspective view of the developing cartridge according to the first embodiment of the present application.

[0024] Figure 2 is an exploded view of the developing cartridge according to the first embodiment of the present application, in which the partial components of the driving end are separated from the housing.

[0025] Figure 3A is a side view of the developing cartridge according to the first embodiment of the present application, in which the driving end cover is hidden and viewed along the first direction.

[0026] Figure 3B is a side view of the developing cartridge according to the first embodiment of the present application, in which the driving end cover is hidden and viewed along the third direction.

[0027] Figure 4 is an exploded view of the developing cartridge according to the first embodiment of the present application, in which the partial components of the conducting end are separated from the housing.

[0028] Figure 5 is a side view of the developing cartridge according to the first embodiment of the present application, viewed along the first direction.

[0029] Figure 6A is a top view of the powder discharging blade according to the first embodiment of the present application, viewed along the second direction.

[0030] Figure 6B is a side view of the powder discharging blade according to the first embodiment of the present application, viewed along the first direction, when the powder discharging blade contacts with the developing roller.

[0031] Figure 7 is a perspective view of the conducting end of the developing cartridge according to the second embodiment of the present application.

[0032] Figure 8 is a perspective view of the developing cartridge according to the second embodiment of the present application, in the installation process.

[0033] Figure 9 And Figure 10 is a side view of the developing cartridge according to the second embodiment of the present application, viewed along the third direction, in the installation process.

[0034] Figure 11 is a side view of the developing cartridge according to the second embodiment of the present application, viewed along the third direction, when the detecting device and the detected member interact with each other.

[0035] Figure 12 is a perspective view of the developing cartridge of the embodiment three of the present application when being installed towards the image forming device.

[0036] Figure 13 is a perspective view of the conductive end of the developing cartridge of the embodiment three of the present application.

[0037] Figure 14 is a state view of the detection device in the developing cartridge of the embodiment three of the present application before starting detection.

[0038] Figure 15 is a state view of the detection device in the developing cartridge of the embodiment three of the present application after completing detection.

[0039] Figure 16 and Figure 17 is a perspective view of the developing cartridge of the embodiment four of the present application.

[0040] Figure 18 is a state view of the developing cartridge of the embodiment four of the present application and the drum cartridge being installed towards the image forming device.

[0041] Figure 19 is a perspective view of the process cartridge having the developing cartridge of the embodiment five of the present application.

[0042] Figure 20 is a sectional view along the AA direction in Figure 19 is a sectional view along the AA direction in DETAILED DESCRIPTION

[0043] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0044] [Embodiment One]

[0045] Figure 1A and Figure 1B is a perspective view of the developing cartridge of the embodiment one of the present application; Figure 2 is an exploded schematic view of the developing cartridge of the embodiment one of the present application after separating the partial components of the drive end from the shell; Figure 3A is a side view of the developing cartridge of the embodiment one of the present application after hiding the drive end cover, viewed along the first direction; Figure 3B is a side view of the developing cartridge of the embodiment one of the present application after hiding the drive end cover, viewed along the third direction; Figure 4 is an exploded schematic view of the developing cartridge of the embodiment one of the present application after separating the partial components of the conductive end from the shell; Figure 5 is a side view of the developing cartridge of the embodiment one of the present application, viewed along the first direction; Figure 6Ais a plan view of the powder discharging blade according to the first embodiment of the present application as viewed in the second direction; Figure 6B is a side view of the powder discharging blade according to the first embodiment of the present application as viewed in the first direction when the powder discharging blade contacts the developing roller.

[0046] The developing cartridge 100 can be detachably installed into an image forming apparatus provided with a detected member 9 (as shown in Figure 7 The developing cartridge 100 can be formed as an "integrated" structure including both the developing roller and the photosensitive drum, or as a "separated" structure including only the developing roller but not the photosensitive drum. Regardless of the form of the developing cartridge 100, it can be directly or indirectly detachably installed into the image forming apparatus, for example, the developing cartridge 100 is first installed into a drum cartridge, and then the combination of the developing cartridge 100 and the drum cartridge is detachably installed into the image forming apparatus, or the developing cartridge 100 is directly detachably installed into the image forming apparatus.

[0047] The developing cartridge 100 includes a housing 1, a rotating member 2, a driving force receiving member 3, and a detection device 4. The housing 1 is formed with a cavity 10 for accommodating toner. The rotating member 2 is rotatably arranged in the housing 1. The driving force receiving member 3 is configured to receive a driving force from the image forming apparatus to drive the rotating member 2 to rotate. The detection device 4 is configured to interact with the detected member so that various parameter information of the developing cartridge 100 is known by the image forming apparatus, such as whether the developing cartridge 100 is installed, the model of the developing cartridge 100, the service life of the developing cartridge 100, and the like. Further, the developing cartridge 100 further includes an end cover 11 connected with the housing 1 and a handle (gripping portion) 12. A user can operate the handle 12 to realize installation and dismounting of the developing cartridge 100.

[0048] The rotating member 2 and the detection device 4 are configured to work directly or indirectly by receiving the driving force from the driving force receiving member 3, that is, the driving force receiving member 3 directly or indirectly supplies the driving force received thereby to the rotating member 2 and the detection device 4 so that the rotating member 2 and the detection device 4 work. In the present embodiment, the driving force receiving member 3 is exposed from an exposure hole 112 (as shown in Figure 2 The developing cartridge 100 further includes a driving force transmission assembly 6 configured to transmit the driving force of the driving force receiving member 3 to the rotating member 2 and the detection device 4, respectively.

[0049] 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.

[0050] 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.

[0051] The developing cartridge 100 further includes a powder outlet blade 7 and a conductive member 5, wherein 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.

[0052] 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.

[0053] 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, and the cavity 10 is located between the left side wall 1a and the right side wall 1b, and 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.

[0054] (Driving force transmission assembly)

[0055] 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.

[0056] 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.

[0057] As described above, the first large-diameter portion 612 is closer to the shell 1 / cavity 10 / conductive end than the first small-diameter portion 611, and the second large-diameter portion 642 is closer to the shell 1 / cavity 10 / conductive end than the second small-diameter portion 641, which is conducive to reducing the possible shaking of the first transmission member 61 and the fourth transmission member 64, thereby improving the stability of the driving force transmission assembly 6 in transmitting driving force.

[0058] 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; since the outer surface of the first side wall la is not a plane, in order to more clearly show 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 (the 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 (the 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 later-described movable member 42 have a larger movement space, and on the other hand, the movable member 42 can also be effectively protected by the fifth transmission member 65, preventing the movable member 42 from falling off.

[0059] (detection device)

[0060] 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.

[0061] 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.

[0062] 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.

[0063] The movable member 42 comprises a movable body 421, and a driven portion 422 and a driving portion 423 connected to the movable body 421 respectively, the driven portion 422 and the driving portion 423 both 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.

[0064] 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, 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.

[0065] In some embodiments, the developing cartridge 100 further comprises a support column 13 protruding from the left side wall la, the movable member 42 is supported by the support column 13, the movable member 42 can be provided with a combination groove 424, and the support column 13 is provided with a combination protrusion 131 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 131, when the detection device 4 / detection member 41 completes the interaction with the detected member, the combination protrusion 131 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 131 and the combination groove 424 can also be interchanged.

[0066] In some embodiments, the detection element 41 is provided with a driven part 411 and an actuating part 412. The driven part 411 is actuated by the driving part 423, and the driving force is transmitted to the detection element 41. When the detection element 411 is driven, the actuating part 412 can interact with the detected element 9.

[0067] (Conductive component)

[0068] like Figure 4 As shown, the conductive component 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 imaging device. Through the connecting part 53, the power is transmitted to the power supply part 52, and then the power supply part 52 supplies the power to at least one of the developing roller 21 and the powder feeding roller 22.

[0069] The developing roller 21 includes a developing roller shaft 212 and a developing layer 211 covering the outside of the developing roller shaft 212. The developing layer 211 is used to carry toner. The toner feeding roller 22 includes a toner feeding roller shaft 222 and a toner feeding layer 221 covering the outside of the toner feeding roller shaft 222. The toner feeding layer 221 is used to supply toner to the developing layer 211. Generally, the developing roller shaft 212 and the toner feeding roller shaft 222 are both made of metal to reduce the delay in the transmission of driving force in the developing roller 21 and the toner feeding roller 22. Therefore, in some embodiments, the developing roller shaft 212 and the toner feeding roller shaft 222 may also be made of non-metal.

[0070] Generally, imaging equipment is provided with a first power output unit for supplying power to the developing roller 21 and a second power output unit for supplying power to the powder feeding roller 22. The voltage output by the second power output unit is higher than the voltage output by the first power output unit. In this embodiment, the power receiving unit 51 is configured to contact the second power output unit and receive the voltage output by the second power output unit. The power supply unit 52 is in contact with the developing roller shaft 212. Preferably, the power supply unit 52 is in contact with the end face of the developing roller shaft 212.

[0071] like Figure 5 As shown, when viewed from right to left along the first direction, the conductive element 5 is located outside the projection range of the driving force receiver 3. This design can effectively reduce the impact of the vibration generated by the driving force receiver 3 during rotation on the conductive element 5. In particular, the vibration generated by the driving force receiver 3 is greater at the moment it is driven, but the conductive element 5 is not located within the projection range of the driving force receiver 3. Thus, the power receiving part 51 can not only maintain stable contact with the second power output part, but the power supply part 53 can also maintain stable contact with the developing roller shaft 212.

[0072] (Dispense powder)

[0073] The powder outletting knife 7 comprises 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 means of bonding, welding and the like, for example, as shown in the figures, 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. Figure 6A and Figure 6B As shown in the figures, 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.

[0074] Further, the powder outletting knife 7 further comprises at least one mounting portion 73 provided on the holder 71, through the mounting portion 73, the powder outletting knife is fixedly installed, specifically, a screw as a mounting member passes through the mounting portion 73, and the powder outletting knife 7 can be fixedly installed on the casing 1, preferably, the powder outletting knife 7 is provided with two mounting portions 73, along the first direction, the two mounting portions 73 are respectively located at two end portions of the powder outletting knife, and the mounting portion 73 is provided as a mounting hole; along the third direction (a 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 which are spaced from each other, and the blade 72 has a third end 72a and a fourth end 72b which are 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, along the third direction, the first end 71a is farther away from the rotation axis L1 than the second end 71b, 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.

[0075] 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 are both located in the joint area S.

[0076] In some embodiments, the mounting portion 73 passes through the blade 72 and the holder 71 at the same time, so that the blade 72 can be further fixed.

[0077] 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.

[0078] [Embodiment Two]

[0079] Figure 7 is a perspective view of a conductive end of the developing cartridge according to the embodiment two of the utility model, Figure 8is the perspective view of the developing box in the installation process of the second embodiment of the utility model, Figure 9 and Figure 10 is the side view of the installation process of the developing box in the second embodiment of the utility model when viewed along the third direction, Figure 11 is the side view of the developing box in the second embodiment of the utility model when viewed along the third direction, and the detection device and the detected piece interact with each other.

[0080] In the embodiment, the detection piece 41 is arranged to slide along the chute 113 in the second direction, and under the action of the reset piece 44, the detection piece 41 reciprocates in the chute 113 in the second direction, and the detected piece 9 and the detection piece 41 realize interaction in the movement process of the detection piece 41.

[0081] In the installation process of the developing box 100, in order to prevent the detection piece 41 and the detected piece 9 from interfering with each other, preferably, along the second direction, the detection piece 41 does not overlap the detected piece 9, at this time, the developing box 100 is located at the first position, and the detection device 4 / detection piece 41 and the detected piece 9 cannot interact with each other, specifically, as shown in Figure 9 , along the first direction, the detection device 4 / detection piece 41 is located at the right side of the detected piece 9, and when viewed along the second direction, the two do not overlap.

[0082] As shown in Figure 8 , along the first direction, at least the right side of the installation cavity Q of the imaging device is provided with a side plate 91, and along the second direction, the side plate 91 extends in a non-linear manner, specifically, the side plate 91 includes a first extension part 911 and a second extension part 912 connected with each other, along the first direction, the first extension part 911 is farther away from the left side of the imaging device than the second extension part 912, or in other words, the second extension part 912 protrudes towards the installation cavity Q relative to the first extension part 911, and the installation cavity Q is used for accommodating the developing box 100 or a combination of the developing box 100 and the drum box (process cartridge); more specifically, the second extension part 912 extends obliquely from the first extension part 911 towards the installation cavity Q, and thus the second extension part 912 (one embodiment of the acting piece) has an inclined surface 912a facing the installation cavity Q.

[0083] The developing box 100 further includes an abutting piece (one embodiment of the acting piece) 17 for abutting with the inclined surface 912a, and the abutting piece 17 protrudes from the right side wall 1b to form a protruding part, as shown in Figure 9 and Figure 10 , in the installation process of the developing box 100 along the second direction, the abutting piece 17 gradually starts to abut with the inclined surface 912a, along the first direction, the developing box 100 as a whole starts to move to the left, and correspondingly, the detection device 4 / detection piece 41 also moves to the left; when the developing box 100 reaches the predetermined installation position, the developing box 100 will be at Figure 10In the second position, the detection device 4 / detection member 41 can interact with the detected member 9, and in the first direction, the detection device 4 / detection member 41 is located at the left side of at least a part of the detected member 9, and in the second direction, at least a part of the detected member 9 overlaps with the detection device 4 / detection member 41. At this time, according to the detection requirement of the detected member 9, the detection device 4 / detection member 41 can be in contact with the detected member 9 or spaced apart from the detected member 9.

[0084] When the driving force receiving member 3 receives the driving force to start rotating, the detection member 41 starts moving forward in the second direction through the driving force transmission assembly 6, as shown in the figure. Figure 11 As shown, the detection member 41 forces the detected member 9 to move, and the reset member 44 is elastically deformed, and then, under the action of the elastic force released by the reset member 44, the detection member 41 is reset.

[0085] In the embodiment, the detection member 41 no longer moves in the first direction, but moves with the installation of the developing cartridge 100, and the developing cartridge 100 as a whole moves in the first direction (to the left) from the first position to the second position. When the developing cartridge 100 reaches the second position, the abutting member 17 keeps abutting with the inclined surface 912a, and the developing cartridge 100 is kept in the second position, so that the detection member 41 reaches the position capable of interacting with the detected member 9, the structure of the detection device 4 can be simplified, and the developing cartridge 100 does not need to be provided with the spiral protrusion for moving the detection member 41 in the first direction.

[0086] In some embodiments, the abutting member 17 can also be provided to extend from the driving end to the conductive end and protrude to the right from the right side wall 1b, which is beneficial to enhance the strength of the abutting member 17.

[0087] In some embodiments, the detection device 4 can also be located at the conductive end. In this case, the abutment 17 will protrude from the left side wall 1a to the left. Correspondingly, the side plate 91 / inclined surface 912a is located on the left side of the imaging device. Along the first direction, the second extension 912 is closer to the right side of the imaging device than the first extension 911. In other words, along the first direction, the second extension 912 protrudes relative to the first extension 911 toward the mounting cavity Q of the imaging device. Through the abutment 17 and the inclined surface 912a, along the first direction, the developing cartridge 100 moves as a whole from left (first position) to right (second position). Therefore, along the first direction, the positions where the abutting member 17 and the inclined surface 912a abut / interact with each other are opposite to the positions where the detection member 41 and the detected member 9 abut / interact with each other. For example, in the above description, the abutting member 17 and the inclined surface 912a abut / interact with each other on the right side of the developing cartridge 100, and the detection member 41 and the detected member 9 abut / interact with each other on the left side of the developing cartridge 100, or the abutting member 17 and the inclined surface 912a abut / interact with each other on the left side of the developing cartridge 100, and the detection member 41 and the detected member 9 abut / interact with each other on the right side of the developing cartridge 100.

[0088] In some embodiments, the abutment 17 may also be configured to be movable relative to the housing 1. During the installation of the developing cartridge 100, the abutment 17 does not abut against the inclined surface 912a. When the developing cartridge 100 reaches the predetermined installation position, the abutment 17 moves relative to the housing 1 under the action of an external force. At the same time, the abutment 17 abuts against the inclined surface 912a, thereby forcing the developing cartridge 100 as a whole to move from the first position to the second position along the first direction. The external force used to force the abutment 17 to move relative to the housing 1 may come from the force of the user gripping the handle 12. A control mechanism may also be provided in the developing cartridge. The control mechanism is controlled by the force applied by the user's hand or the inner wall of the imaging device, thereby controlling the abutment 17 to be stationary or movable relative to the housing 1.

[0089] In some embodiments, the driving force receiver 3 may also be configured to be movable relative to the housing 1, such that the driving force receiver 3 and the driving force output element 93 in the imaging device (e.g., Figure 12 As shown, when the developing cartridge 100 is in a state of mutual engagement, even if the entire developing cartridge 100 moves along the first direction, the driving force receiving component 3 and the driving force output component 93 can remain in a stable engagement state, so that the driving force receiving component 3 can stably receive the driving force; the driving force receiving component 3 can move relative to the housing 1 along the first direction, or relative to the housing 1 along a direction intersecting the first direction, or it can move by having both of the aforementioned movements.

[0090] [Example 3]

[0091] Figure 12This is a perspective view of the developing cartridge as it is installed facing the imaging device, according to Embodiment 3 of this utility model. Figure 13 This is a perspective view of the conductive end of the developing cartridge according to Embodiment 3 of this utility model. Figure 14 This is a diagram showing the state of the detection device in the developing cartridge before the start of detection, according to Embodiment 3 of this utility model. Figure 15 This is a state diagram of the detection device in the developing cartridge according to Embodiment 3 of this utility model after the detection is completed.

[0092] Depending on the structure of the side plate 91 of the imaging device, this embodiment provides another suitable abutment 17. For example... Figure 12 As shown, the side plate 91 is a straight plate extending along the second direction, but the side plate 91 is provided with a protrusion (another embodiment of the acted member) 914 protruding toward the receiving cavity Q; the detection device 4 / detection member 41 is a detection protrusion protruding from at least one of the end cover 11 and the housing 1, and the detection protrusion is also provided with a detection surface 4a for abutting / interacting with the detected member 9. Preferably, the detection protrusion is fixedly disposed relative to the housing 1.

[0093] like Figure 13 As shown, in this embodiment, the abutment 17 is configured to be movable relative to the housing 1. Specifically, the abutment 17 is configured as a rotating body that can rotate relative to the housing 1. The driving force transmission assembly 6 also includes a seventh transmission member 67 and an eighth transmission member 68. The abutment 17 is connected to the eighth transmission member 68, and the abutment 17 can also be driven by the eighth transmission member 68. In some deformable ways, the seventh transmission member 67 and the eighth transmission member 68 in the driving force transmission assembly 6 can be reduced to one, or other transmission members can be added, as long as the abutment 17 can abut / interact with the protrusion 914 through the driving force transmission assembly 6, so that the developing cartridge 100 as a whole moves from the first position to the second position.

[0094] The abutment member 17 is provided with an abutment protrusion 171 that can rotate with the eighth transmission member 68. The abutment protrusion 171 has at least an abutment surface 172. Preferably, the abutment protrusion 17 has adjacent abutment surfaces 172 and retaining surfaces 173. The abutment surface 173 is configured as an inclined surface or a helical surface, such as... Figure 14 As shown, when the developing cartridge 100 reaches the predetermined installation position of the imaging device / receiving cavity Q, the abutment protrusion 171 and the bump 914 are in contact with each other or spaced apart, and the detection surface 4a and the object being tested 9 are also in contact with each other or spaced apart, as shown. Figure 15As shown, with the driving force receiving member 3 receiving the driving force output from the driving force output member 93 to start rotating, under the action of the eighth transmission member 68, the abutting member 17 starts to move (specifically, rotate), and the abutting surface 172 starts to abut against the protrusion 914, and the developing cartridge 100 as a whole moves from the first position to the second position, that is, the developing cartridge 100 as a whole moves leftwards in the first direction, and in the process of the movement of the developing cartridge 100, the detection member 4 / detection surface 4a abuts against / interacts with the detected member 9, and when the detection is completed, the retaining surface 173 of the abutting member 17 retains abutment with the protrusion 914, and the developing cartridge 100 is retained in the second position, at this time, the abutting member 17 is no longer driven and remains stationary.

[0095] As described above, when the detection device 4 completes detection, the abutting member 17 no longer receives driving force and remains stationary, that is, the driving force transmission between the driving force receiving member 3 / driving force transmission assembly 6 and the abutting member 17 is interrupted, and the driving force is interrupted in a manner such as interruption of driving force transmission inside the driving force transmission assembly 6 or interruption of driving force transmission between the driving force transmission assembly 6 and the abutting member 17, and specifically, the eighth transmission member 68 or the seventh transmission member 67 is provided as a missing tooth gear, and the missing tooth portion of the missing tooth gear is used to interrupt driving force transmission.

[0096] [Embodiment Four]

[0097] Figure 16 And Figure 17 is a perspective view of the developing cartridge involved in the embodiment four of the utility model, Figure 18 is a state diagram when the developing cartridge and the drum cartridge adapted thereto together toward the installation of the image forming device.

[0098] In the above embodiment, the detection device 4 is provided as a detection protrusion capable of abutting against / interacting with the detected member 9, and in some embodiments, the detection device 4 can also be provided as a chip assembly CA for establishing a communication connection with the image forming device, and the chip assembly CA is in electrical contact with the stylus in the image forming device, such as Figure 16 As shown, the detection device 4 / chip assembly CA includes a mounting seat CA1 and a chip CA2, the chip CA2 includes a substrate CA21 and an electrical contact portion CA22, at least the electrical contact portion CA22 is supported by the mounting seat CA1, preferably, the electrical contact portion CA22 is provided on the substrate CA21, and the substrate CA21 is fixedly provided on the mounting seat CA1, that is, the chip CA2 / electrical contact portion CA22 is fixedly provided relative to the housing 1.

[0099] Similarly, the mounting seat CA2 can be arranged on at least one of the end cover 11 and the shell 1, based on the inventive concept of the utility model, the chip assembly CA / chip CA2 / electric contact CA22 can move with the developing box 100 as a whole from the first position to the second position, when the developing box 100 reaches the second position, the electric contact CA22 is in electrical contact with the stylus, therefore, the chip assembly CA / chip CA2 / electric contact CA22 can be regarded as a detection piece in the embodiment, the stylus can be regarded as a detected piece, and the electrical contact of the electric contact CA22 and the stylus is a way of interaction between the detection piece and the detected piece.

[0100] As shown in Figure 17 , the abutting piece 17 in the embodiment protrudes to the right from the right side wall 1b, as shown in Figure 18 , the image forming apparatus further comprises a guide rail 92 arranged adjacent to the mounting cavity Q, the guide rail 92 is located on the left side and / or the right side of the mounting cavity Q, and is used for guiding the developing box 100 or the combination of the developing box 100 and the drum box 200, the guide rail 92 is provided with a guide inclined surface 921.

[0101] The developing box 100 is mounted to the drum box 200 to form a process cartridge, and the process cartridge is mounted to the image forming apparatus in the second direction, during the mounting process of the process cartridge, the abutting piece 17 gradually abuts against the guide inclined surface 921, so that the developing box 100 is gradually lifted in the third direction until the developing box 100 / process cartridge reaches the predetermined mounting position of the image forming apparatus, at this time, the electric contact 822 is in electrical contact with the stylus.

[0102] As can be seen, under the interaction of the abutting piece 17 as an acting piece and the guide rail 92 / guide inclined surface 921 as a acted piece, the developing box 100 in the embodiment can also move from the first position to the second position, in the first position, the detection device 4 / electric contact 822 and the stylus cannot interact with each other, in the second position, the detection device 4 / electric contact 822 and the stylus can interact with each other; in this design, the mounting seat CA2 can be fixedly arranged relative to the end cover 11 or the shell 1, the overall structure can be simplified, and correspondingly, the structure of the chip assembly CA can also be simplified.

[0103] As described above, through the interaction of the detection piece 41 and the detected piece 9, the parameter information of the developing box 100 can be known by the image forming apparatus, through the electrical contact of the electric contact CA22 and the stylus, the developing box 100 / chip CA2 / electric contact CA22 establishes a communication connection with the image forming apparatus, and the parameter information of the developing box 100 stored in the chip CA2 can also be known by the image forming apparatus, therefore, the electric contact CA22 in the embodiment can also be regarded as a kind of detection piece, and the stylus can also be regarded as a kind of detected piece.

[0104] In the first position, the detection member and the detected member cannot interact with each other, which 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 cannot interact with the detected member, and the parameter information of the developing cartridge 100 cannot be acquired by the image forming device; in the second position, the detection member and the detected member can interact with each other, which 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 acquired by the image forming device.

[0105] 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 mode 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, and at the same time, the developing cartridge 100 is limited in the drum cartridge 200 by 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, and the relative position of the developing roller 21 and the photosensitive drum does not change, which is beneficial to maintaining stable imaging quality.

[0106] In some embodiments, the abutting member 17 can also be arranged on the drum cartridge 200, and as the process cartridge is installed, the abutting member 17 abuts against the guide slope 921, and the process cartridge is gradually lifted as a whole along the third direction, and the electrical contact part 822 located in the developing cartridge 100 also moves upward along the third direction, and finally, the electrical contact part 822 is in electrical contact with the stylus, which is also beneficial to maintaining stable imaging quality.

[0107] As shown in Figure 17 The right forced pushing member 14R is arranged on the sealing part 83, which is beneficial to simplifying the structure of the shell 1 or the bracket 8, and the right forced pushing member 14R can also serve as an operation part for the user to operate the sealing part 83, compared with a sheet-shaped operation part arranged on the sealing part 83, the right forced pushing member 14R has a more three-dimensional structure and can be more convenient for the user to operate.

[0108] [Embodiment Five]

[0109] Figure 19 is a perspective view of a process cartridge with the developing cartridge related to the embodiment five of the present application, Figure 20 is a sectional view along the AA direction in Figure 19 .

[0110] Similarly, in the first position, the electrical contact CA22 does not interact with the stylus (specifically, the two are not in contact and cannot establish a communication connection), and the parameter information of the developing cartridge 100 cannot be learned by the image forming device, and in the second position, the electrical contact CA22 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 learned by the image forming device. It can be seen that the electrical contact CA22 in the embodiment can also be regarded as a detection member, and the stylus can also be regarded as a detected member.

[0111] According to the setting position of the stylus, the process of moving the developing cartridge 100 as a whole or the process cartridge as a whole along the third direction from the first position to the second position can be downward movement or upward movement; the magnetic force can be magnetic attraction or magnetic repulsion, which can be selected by the designer according to the product design requirements.

[0112] According to the above-mentioned inventive concept, 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 move, but the housing 1 moves from the first position to the second position. 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.

[0113] For example, the end cover 11 is arranged to be movable relative to the housing 1, and when the developing cartridge 100 is installed into 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.

[0114] 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, and the detection member 41 / CA22 can move in response to the movement of the housing 1.

[0115] As described 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 driving force receiving member 3.

Claims

1. A developing cartridge, detachably installed in an imaging device having a test piece and an action piece, characterized in that, The developing cartridge comprises: a housing; a developing roller rotatably arranged in the housing and having a rotation axis extending in a first direction; a detection member configured to interact with a detected member such that parameter information of the developing cartridge is acquired by the image forming device; an acting member configured to interact with an acted member such that at least the housing moves from a first position to a second position; in the first position, the detection member is unable to interact with the detected member, and in the second position, the detection member is able to interact with the detected member.

2. The process cartridge according to claim 1, wherein, In the first direction, at least a mounting cavity of the image forming device is provided with a side plate, and in the second direction, the side plate extends in a non-straight line; the acting member is an abutting member abutting against an inclined surface, the abutting member protrudes from the housing to form a protrusion; during installation of the developing cartridge in the second direction, the abutting member abuts against the inclined surface to move at least the housing from the first position to the second position.

3. The process cartridge of claim 2 wherein, The side plate is arranged on the right side of the mounting cavity; in the first direction, the housing comprises a driving end at one end and a conductive end at the other end; the abutting member is arranged to extend from the driving end to the conductive end and protrude to the right from the right side wall.

4. The process cartridge of claim 2 wherein, The side plate is arranged on the left side of the mounting cavity; in the first direction, the housing comprises a driving end at one end and a conductive end at the other end; the abutting member is arranged to extend from the driving end to the conductive end and protrude to the left from the left side wall.

5. The process cartridge of claim 2, wherein, The abutting member is movably arranged relative to the housing.

6. The process cartridge of claim 1, wherein, The developing cartridge further comprises a driving force receiving member for receiving a driving force from the image forming device, and the acting member is the abutting member rotating as the driving force receiving member receives the driving force; the acted member is a protrusion arranged on the side plate and protruding towards the mounting cavity.

7. The process cartridge of claim 6 wherein, The abutting member comprises an abutting protrusion provided with an abutting surface, the abutting surface is arranged as an inclined surface or a helical surface.

8. The process cartridge of claim 1, wherein, The detected member is a stylus in the image forming device, and the developing cartridge further comprises a chip assembly for establishing a communication connection with the image forming device, and the detection member is an electrical contact portion in the chip assembly for contacting the stylus; The acting member is an abutting member arranged in the developing cartridge, under the action of the abutting member and the acted member, the housing moves in a third direction from a first position to a second position; wherein the first direction and the second direction both intersect the third direction.

9. The process cartridge of claim 1, wherein, The image forming device comprises a mounting cavity and a guide rail arranged adjacent to the mounting cavity, the mounting cavity is at least used for accommodating the developing cartridge, and the acted member is a guide inclined surface arranged in the guide rail.

10. The developer cartridge of claim 1, wherein, The acting member is a magnetic member arranged in the developing cartridge, and the acted member is a metal member arranged in the image forming device.

Images