Developing box

Abstract

The utility model discloses a developing box. The developing box comprises a shell, a developing roller; a gear; a detected member located on a second side of the housing in the first direction, the detected member being movable with respect to the housing at a first speed according to rotation of the gear; the elastic component is arranged between the shell and the detected component, and the elastic component can apply force to the detected component so that the detected component can change from the first speed to the second speed; the detected component is provided with a triggering position, at the triggering position, the elastic component can enable the detected component to move at a second speed, and the second speed is different from the first speed; according to the developing box, the driving gear and the detected protrusion are arranged separately, the elastic piece forcibly pushes the driving gear to be converted from the first rotating speed to the second rotating speed, the structure is simple, the requirement for the production technology is not high, the product production cost is low, and the problem that the detected part reports errors cannot occur.

Description

Technical Field

[0001] The utility model relates to the field of electrophotographic imaging technology, and in particular to a developing cartridge. Background Technology

[0002] In existing image forming apparatuses, such as laser printers, the developing cartridge can be installed into and removed from the main body of the apparatus. When the developer in the developing cartridge is depleted, it needs to be removed from the main body of the image forming apparatus and a new developing cartridge installed; similarly, in case of a paper jam, the developing cartridge must also be removed from the main body of the image forming apparatus and then reinstalled. Image forming apparatuses typically include a detection unit; the apparatus can determine the developing cartridge's model, capacity, and condition (new or used) based on the number of times the detection unit is contacted and the time intervals between contact. In existing image forming apparatuses, the detection unit can determine the specific model of the developing cartridge by the rotation speed of the detection component of the detected unit within the developing cartridge. If the detection unit detects that the rotation speed of the detection component in the developing cartridge is lower or higher than a predetermined value set by the image forming apparatus, an alarm message indicating a toner cartridge error will be issued. However, the detection mechanism of the developing cartridge in existing technologies is complex or has low precision, which can easily lead to errors when the developing cartridge is installed in the image forming apparatus.

[0003] In the prior art, Chinese patent CN106817911A discloses a detection gear for a developing cartridge. The detection gear is integrally formed with a detection protrusion. The detection gear has a first gear portion and a second gear portion in the axial direction of the developing roller. The first gear portion and the second gear portion have partial gear teeth formed on a portion of their respective circumferences, which can mesh with the stirring rack gear. The diameter of the first gear portion is larger than the diameter of the second gear portion. The first gear portion is positioned further away from the side wall of the developing cartridge housing in the axial direction. When the first gear portion disengages from the stirring rack gear, the second gear portion re-engages with the stirring rack gear. At this time, the rotational speed of the detection gear increases. The detection unit in the image forming apparatus can identify the change in the rotational speed of the detection protrusion and output a corresponding signal, thereby identifying the model of the developing cartridge. However, the detection gear with this structure has particularly high requirements for materials and dimensions, particularly high requirements for production process control, high production costs, and frequent error problems in actual operation. Utility Model Content

[0004] Therefore, this utility model provides a developing cartridge to solve the above-mentioned technical problems, mainly through the following technical solution:

[0005] A developing cartridge, the developing cartridge comprising:

[0006] A housing for containing developer, the housing having a first side and a second side separated from each other in a first direction;

[0007] The developing roller is rotatable about an axis extending in the first direction;

[0008] A gear that can receive a driving force from outside the developing cartridge, the gear being rotatable about a first axis extending in the first direction, the gear being located on the first side of the housing in the first direction;

[0009] The component to be tested is located on the second side of the housing in the first direction, and the component to be tested can move relative to the housing at a first speed according to the rotation of the gear;

[0010] An elastic member is disposed between the housing and the component being detected. The elastic member can apply a force to the component being detected to cause the component being detected to change from a first velocity to a second velocity.

[0011] The detected component has a trigger position, at which the elastic component can cause the detected component to move at a second speed, which is different from the first speed.

[0012] Furthermore, the developing cartridge also includes a driving force transmission member that extends from the first side of the housing to the second side of the housing. One end of the driving force transmission member is connected to the gear, and the other end of the driving force transmission member is connected to the component being tested. The driving force transmission member is used to transmit the driving force of the gear to the component being tested.

[0013] Furthermore, the component being tested has a first guide groove, a second guide groove, and a protrusion being tested;

[0014] The first guide groove cooperates with the driving force transmission component to drive the detected component to move, and the second guide groove communicates with the first guide groove;

[0015] In the first direction, the detected protrusion is closer to the first side of the housing than the first guide groove and the second guide groove.

[0016] Furthermore, when viewed along a third direction intersecting the first direction, the first guide groove and the second guide groove are intersected.

[0017] Furthermore, the second speed is greater than the first speed.

[0018] Furthermore, the developing cartridge also includes a powder feeding roller, and in a second direction intersecting the first direction, the rotating components inside the housing are all closer to the developing roller than the rotation axis of the powder feeding roller.

[0019] Furthermore, in a third direction intersecting the first direction, the distance between the bottom surface of the housing and the lower end of the housing gradually decreases as it extends towards the developing roller along a second direction intersecting the first direction.

[0020] Furthermore, the bottom of the housing is provided with ribs, and the developing cartridge also includes a cover plate, which is disposed on the ribs. In a second direction intersecting the first direction, at least a portion of the cover plate overlaps with the developing roller.

[0021] This utility model also provides a developing cartridge, the developing cartridge comprising:

[0022] A housing for containing developer, the housing having a first side and a second side separated from each other in a first direction;

[0023] A gear that can receive a driving force from outside the developing cartridge, the gear being rotatable about a first axis extending in the first direction, the gear being located on the first side of the housing in the first direction;

[0024] The developing chamber also includes a detection component rotatable about a second axis extending upward about a third axis intersecting the first direction. The detection component is located on the second side of the housing in the first direction. The detection component extends a first protrusion and a second protrusion in the radial direction of the detection component.

[0025] The first protrusion and the second protrusion are arranged in the third direction, and the first protrusion and the second protrusion are spaced apart in the rotational direction of the component being tested.

[0026] Furthermore, the developing cartridge also includes a flexible member extending from the first side of the housing to the second side of the housing; one end of the flexible member is connected to the gear, and the other end of the flexible member is connected to the component being tested; the flexible member can move according to the rotation of the gear, and the component being tested can rotate according to the movement of the flexible member.

[0027] Beneficial effects:

[0028] The developing cartridge of this invention includes a detection component and detection protrusions of different heights. The detection protrusions of different heights can move the object to be detected by the electrophotographic imaging device at different speeds. The electrophotographic imaging device can identify the change in the rotation speed of the object and output a signal. Thus, the imaging device can output different signals according to the movement changes of the detection protrusions in the developing cartridge, thereby identifying the specific model of the developing cartridge. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the developing cartridge in Embodiment 1 of this utility model;

[0030] Figure 2 This is a three-dimensional structural diagram of the developing cartridge of Embodiment 1 in this utility model from another angle;

[0031] Figure 3 This is a left view of the developing box of Embodiment 1 of this utility model, viewed from the left-right direction.

[0032] Figure 4 This is a front view of the developing box of Embodiment 1 of this utility model, viewed along the front-to-back direction;

[0033] Figure 5 This is a top view of the developing cartridge in Embodiment 1 of this utility model, viewed from the top and bottom.

[0034] Figure 6 This is a top view of the developing cartridge in Embodiment 1 of this utility model, viewed from the top and bottom.

[0035] Figure 7 This is a right view of the developing cartridge of Embodiment 1 of this utility model, viewed from the left-right direction.

[0036] Figure 8 This is a left view of the developing cartridge in Embodiment 1 of this utility model, with the left cover hidden, viewed from the left and right sides.

[0037] Figure 9 This is a vertical cross-sectional view of the developing cartridge of Embodiment 1 of this utility model;

[0038] Figure 10 This is a schematic diagram of the end cap, drive gear, and detection unit of the developing cartridge in Embodiment 1 of this utility model, in a disassembled state from the powder hopper.

[0039] Figure 11 This is a three-dimensional structural schematic diagram of the drive gear in Embodiment 1 of this utility model;

[0040] Figure 12 This is a right view of the drive gear in Embodiment 1 of this utility model, viewed from the left and right direction.

[0041] Figure 13 This is a three-dimensional structural diagram of the movable component in Embodiment 1 of this utility model;

[0042] Figure 14 This is a top view of the drive gear in Embodiment 1 of this utility model, viewed from the top and bottom.

[0043] Figure 15 This is a schematic diagram of the detection unit in the developer cartridge of Embodiment 2 of this utility model, taken out of the shell and in a disassembled state.

[0044] Figure 16 This is a schematic diagram of the end cap, drive gear, and detection unit of the developing cartridge in Embodiment 3 of this utility model, in a disassembled state from the powder hopper.

[0045] Figure 17 This is a three-dimensional structural diagram of the developing cartridge in Embodiment 4 of this utility model;

[0046] Figure 18 This is a three-dimensional structural diagram of the end cap and gear system of the developing cartridge in embodiment 4 of this utility model, in the disassembled state of the powder hopper.

[0047] Figure 19 This is a three-dimensional structural diagram of the end cap and gear system of the developing cartridge in Embodiment 4 of this utility model from another angle of the powder hopper disassembled state.

[0048] Figure 20 This is a left view of the developing cartridge in the left-right direction when the end cap is hidden in the developing cartridge of Embodiment 4 of this utility model.

[0049] Figure 21 This is a left view of the gear train and the chip viewed in the left-right direction when the driving gear in the developing cartridge of Embodiment 4 of this utility model is in the initial position;

[0050] Figure 22 This is a right view of the gear train and the chip viewed in the left-right direction when the drive gear in the developing cartridge of Embodiment 4 of this utility model is in the initial position;

[0051] Figure 23 This is a left view of the gear train and the chip viewed in the left-right direction when the drive gear in the developing cartridge of Embodiment 4 of this utility model rotates by an angle R1.

[0052] Figure 24 This is a right view of the gear train and the chip viewed in the left-right direction when the drive gear in the developing cartridge of Embodiment 4 of this utility model rotates by an angle R1.

[0053] Figure 25 This is a three-dimensional structural schematic diagram of the developing cartridge in Embodiment 5 of this utility model;

[0054] Figure 26This is a three-dimensional structural diagram of the developing cartridge in Embodiment 5 of this utility model from another angle;

[0055] Figure 27 This is a bottom view of the developing cassette in Embodiment 5 of this utility model, viewed from the top and bottom.

[0056] Figure 28 This is a right view of the developing cartridge in Embodiment 5 of this utility model, when it is installed in the imaging device, viewed from the left and right direction.

[0057] Figure 29 This is a three-dimensional structural diagram of the end cap and gear system of the developing cartridge in Embodiment 5 of this utility model, in the state of disassembly from the powder hopper.

[0058] Figure 30 This is a three-dimensional structural diagram of the component being tested in the developing cartridge of Embodiment 5 of this utility model, in a disassembled state from the shell.

[0059] Figure 31 This is a three-dimensional structural schematic diagram of the component being tested in Embodiment 5 of this utility model;

[0060] Figure 32 This is a schematic diagram showing the positional relationship between the detector and the developing cartridge in Embodiment 5 of this utility model when the developing cartridge is installed in the imaging device. Detailed Implementation

[0061] To make the objectives, technical solutions, and technical effects of the embodiments of this utility model clearer, the technical solution of the developing cartridge of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely preferred embodiments of this utility model, and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the protection scope of this utility model.

[0062] Example 1:

[0063] Figure 1-8A developing cartridge 100 is shown, which can be detachably installed into a drum housing containing a photosensitive drum, and can be detachably installed together with the drum housing into an electrophotographic imaging apparatus (hereinafter referred to as "imaging apparatus") for imaging operations. The developing cartridge 100 includes a housing 101, which has a drive side and a conductive side separated from each other in the left-right direction. The drive side is configured to receive driving force, and the conductive side is configured to receive electrical power. The housing 101 also has an opening side and a gripping side separated from each other in the front-back direction. The opening side allows the developer inside the housing 101 to exit, and the gripping side is configured for convenient user gripping. Specifically, in this embodiment, the left side of the housing 101 is the drive side, the right side is the conductive side, the front side is the opening side, and the rear side is the gripping side. Figure 5 and Figure 8 As shown, the housing 101 includes a toner cartridge 102 for containing developer and a left cover 103 that can be detachably mounted on the drive side of the toner cartridge 102. The left cover 103 is used to protect the gear train disposed on the left side of the toner cartridge 102 in the left-right direction, and the left cover 103 covers at least a portion of the gear train in the left-right direction. The gear system includes, but is not limited to, a coupling gear 111, a developing roller gear 112, and a powder feeding roller gear 113. The coupling gear 111 includes a coupling part 111a and a gear part 111b. The coupling part 111a is exposed on the drive side of the housing 101 in the left-right direction. When the developing cartridge 100 is installed in the imaging device, the coupling part 111a is connected to the drive component in the imaging device to receive the driving force inside the imaging device and rotates around the rotation axis extending in the left-right direction under the action of the driving force. The gear part 111b is fixedly connected to the coupling part 111a and can rotate with the rotation of the coupling part 111a. The gear part 111b is meshed with the developing roller gear 112 and the powder feeding roller gear 113 respectively, thereby driving the developing roller gear 112 and the powder feeding roller gear 113 to rotate around their respective rotation axes extending in the left-right direction.

[0064] like Figure 9 As shown, the developing cartridge 100 includes a developing roller 120 and a powder feeding roller 130. The developing roller 120 is positioned on the open side of the housing 101 in the front-to-back direction. A developing roller gear 121 is connected to the left end of the developing roller 120 in the left-to-right direction. The developing roller gear 121 can drive the developing roller 120 to rotate around a developing roller axis extending in the left-to-right direction. The developing roller 120 carries the developer. When the developing cartridge 100 is installed in the drum housing, the developing roller 120 can transfer developer to the photosensitive drum inside the drum housing to develop the electrostatic latent image of the photosensitive drum. A powder discharge blade 109 is provided between the developing roller 120 and the housing 101, and the powder discharge blade 109 is used to control the thickness of the developer on the developing roller 120.

[0065] like Figure 5 , Figure 6 and Figure 10 As shown, the developing cartridge 120 also includes an electrode 140, a guided protrusion 106, a forced push protrusion 107, a locked portion 108, a chip 150, and a detection unit. The electrode 140 and the detection unit are located on the conductive side of the housing 101 in the left-right direction, the chip 150 is located on the driving side of the housing 101 in the left-right direction, and the guided protrusion 106 and the forced push protrusion 107 are located on the driving side and / or the conductive side of the housing 101 in the left-right direction.

[0066] Electrode 140 includes an electrical contact portion 141, which is exposed in the left-right direction on the conductive side of housing 101. When the developing cartridge 100 is mounted to the imaging apparatus, the electrical contact portion 141 can contact a power supply component (not shown) inside the imaging apparatus to receive power from inside the imaging apparatus. Electrode 140 is electrically connected to developing roller 120 to supply power to developing roller 120. During the mounting of developing cartridge 100 to drum cartridge, guide protrusion 106 engages with drum cartridge to position developing cartridge 100 correctly within drum cartridge. With developing cartridge 100 mounted to drum cartridge, forced push protrusion 107 receives the pushing force from the forced push portion in drum cartridge, causing developing roller 120 to approach photosensitive drum in the front-back direction. As a result, developing roller 120 contacts photosensitive drum in the front-back direction, enabling developing roller 120 to deliver developer to photosensitive drum to develop electrostatic latent images on the photosensitive drum. With the developing cartridge 100 installed in the drum cartridge, the locking protrusion 108 engages with a locking lever in the drum cartridge to prevent the developing cartridge 100 from detaching from the drum cartridge while they are engaged. The chip 150 stores information such as the model number of the developing cartridge 100. The chip 150 includes an electrical contact surface 151. After the developing cartridge 100 is installed in the imaging device, the electrical contact surface 151 connects to an electrical contact component (not shown) in the imaging device, thereby establishing a communication link between the chip 150 and the imaging device, enabling the imaging device to read the information from the chip 150.

[0067] like Figure 6As shown, the chip 150 and its electrical contact surface 151 are disposed at the bottom of the developing cartridge 100. The electrical contact surface 151 is exposed at the bottom of the developing cartridge 100. In the left-right direction, the electrical contact surface 151 is closer to the left side of the developing cartridge 100 than the right side, and in the front-back direction, it is closer to the front side of the developing cartridge 100 than the rear side. Furthermore, the electrical contact surface 151 is separated from the main body of the developing roller 120 in the left-right direction, and is further away from the right side of the developing cartridge 100 than the main body of the developing roller 120. As a result, interference between the electrical contact surface 151 of the chip 150 and the imaging device is avoided when the developing roller 120 receives high-voltage power from the electrode 140, making the communication connection between the developing cartridge 100 and the imaging device more stable.

[0068] like Figure 9 As shown, in the vertical direction, there is a distance W between the bottom surface 102a of the powder hopper 102 and the lower end of the powder hopper 102, wherein W gradually decreases from back to front along the bottom surface 102a in the front-back direction; that is, the bottom surface 102a of the powder hopper 102 is set as an inclined surface towards the front end of the developing cartridge 100 in the front-back direction. When the developing cartridge 100 is in use, the developer can move towards the front end of the developing roller 120 under the action of gravity. In other words, the inclined surface at the bottom of the powder hopper 102 can replace the function of the stirrer in the prior art, thus simplifying the structure of the developing cartridge 100 and reducing the production cost of the developing cartridge 100.

[0069] like Figure 5 As shown, the developing cartridge 100 includes a detection unit. When the developing cartridge 100 is installed in the imaging device, the detection unit is used to actuate a detection body inside the imaging device to transmit information such as the age of the developing cartridge 100 to the imaging device. The detection unit includes a movable member 161 with a detected protrusion 161a, a transmission rod 162, a retaining member 163, and an elastic member 164. The movable member 161 is located on the conductive side of the housing 101 in the left-right direction, and in the front-back direction, the movable member 161 is closer to the rear side of the housing 101 than the front side of the housing 101. The movable member 161 is movable relative to the housing 101, and the detected protrusion 161a extends upward from the top of the movable member 161. The detected protrusion 161a can move relative to the housing 101 along with the movable member 161. When the developing cartridge 100 is installed in the imaging device, the detected protrusion 161a can actuate a detection body (not shown) inside the imaging device to transmit information such as the age of the developing cartridge 100 to the imaging device. Specifically, in this embodiment, the movable member 161 can move between a first position and a second position in the front-back direction, and the detected protrusion 161a can move together with the movable member 161 in the front-back direction between the first position and the second position.

[0070] Specifically, such as Figure 8 As shown, in order to drive the movable part 161 to move relative to the housing 101, the gear system of the developing cartridge 100 also includes a drum connecting gear 114 and a drive gear 115. The drum connecting gear 114 is close to the front side of the housing 101 in the front-rear direction, and the drum connecting gear 114 is connected to the left end of the developing roller 120 in the left-right direction. When the developing cartridge 100 is installed in the drum housing, the drum connecting gear 114 is connected to the photosensitive drum gear in the drum housing for driving the photosensitive drum to rotate, so as to receive the driving force of the photosensitive drum gear, and can rotate at a constant speed relative to the developing roller 120 about the axis of the drum connecting gear extending in the left-right direction; the drive gear 115 is used to transmit the driving force from the drum connecting gear 114 to the movable part 161, and the drive gear 115 can rotate about the axis of the drive gear extending in the left-right direction. Figure 8 The M-direction shown rotates at a constant speed, driving the gear 115 to the rear of the developing cartridge 100 in the front-to-back direction. Multiple intermediate transmission gears are arranged between the drive gear 115 and the drum connecting gear 114, specifically, as shown... Figure 8-10 As shown, in this embodiment, three intermediate transmission gears are provided between the drive gear 115 and the drum connecting gear 114: a first intermediate transmission gear 116, a second intermediate transmission gear 117, and a third intermediate transmission gear 118. Thus, the driving force of the drum connecting gear 114 is transmitted to the drive gear 115 through the three intermediate transmission gears 116, 117, and 118. The first intermediate transmission gear 116 meshes with the drum connecting gear 116, and the third intermediate transmission gear 118 meshes with the drive gear 115. The first intermediate transmission gear 116, the second intermediate transmission gear 117, and the third intermediate transmission gear 118 mesh sequentially in the front-rear direction. In other words, the drive gear 115 can adjust the driving force according to the drum connecting gear 114's... The gears rotate at a constant speed. Furthermore, at least one of the three intermediate transmission gears 116, 117, and 118 is configured as a double gear with two gear portions of different sizes. Specifically, in this embodiment, the second intermediate transmission gear 117 and the third intermediate transmission gear 118 are both configured as double gears with two gear portions of different sizes. The large gear portion of the second intermediate transmission gear 117 meshes with the first intermediate transmission gear 116, the small gear portion of the second intermediate transmission gear 117 meshes with the large gear portion of the third intermediate transmission gear 118, and the small gear portion of the third intermediate transmission gear 118 meshes with the drive gear 115. As a result, the rotational speed of the drive gear 115 after receiving the driving force of the drum connecting gear 114 is reduced.

[0071] like Figure 10-12As shown, the transmission rod 162 is disposed on the top of the housing 101. The transmission rod 162 is located between the drive gear 115 and the movable member 161 in the left-right direction. The transmission rod 162 extends from the driving side of the housing 101 to the conductive side of the housing 101. The retaining member 163 is connected between the transmission rod 162 and the housing 101 to apply a right-to-left thrust to the transmission rod 162 in the left-right direction, thereby causing the transmission rod 162 to move from right to left. Specifically, in this embodiment, the transmission rod 162 is restricted to move in the left-right direction to transmit the driving force of the drive gear 115 to the movable member 161; 162 includes a receiving end 162a for receiving the pushing force and a force-applying end 162b for driving the movable part in the left-right direction. The drive gear 115 extends a protrusion 115a in the left-right direction from the side closest to the housing 101. The protrusion 115a has multiple grooves, and the side of the grooves is configured as the contact surface of the transmission rod 162. When the drive gear 115 rotates, the contact surface applies a pushing force from left to right to the receiving end 162a of the transmission rod 162 in the left-right direction, thereby causing the transmission rod 162 to move from left to right against the force of the holding part 163. Then, the force-applying end 162b of the transmission rod 162 drives the movable part 161 to move relative to the housing 101 in the front-back direction, and the movable part 161 drives the detected protrusion 161a to move relative to the housing 101 in the front-back direction. Specifically, as... Figure 11-12 As shown, in this embodiment, the drive gear 115 includes at least a first groove 115b and a second groove 115c, which are arranged sequentially along the M direction. The upstream side of the first groove 115b in the rotational direction M is constructed as an inclined surface 115b1 intersecting the left-right direction. The upstream side of the first groove 115b and the second groove 115c in the M direction are constructed as straight surfaces intersecting the left-right direction. The depth of the second groove 115c is greater than the depth of the first groove 115b, that is, the bottom of the second groove 115c is further away from the conductive side of the housing 101 in the left-right direction than the bottom of the first groove 115b. Figure 13-14As shown, the movable member 161 has a first guide groove 161b extending in a direction that is inclined and intersecting the front-rear direction, and a second guide groove 161c extending in the front-rear direction. The first guide groove 161b extends from the left front side of the movable member 161 to the right rear side of the movable member 161. The end of the first guide groove 161b near the left side in the left-right direction is connected to the second guide groove 161b. The force-applying end 162b of the transmission rod 162 is constructed as a protrusion extending in the vertical direction. The force-applying end 162a of the transmission rod 162 cooperates with the first guide groove 161b of the movable member 161 to make the movable member 161 move in the front-rear direction according to the movement of the transmission rod 162. That is, when the transmission rod 162 moves in the left-right direction, the transmission rod 162 drives the movable member 161 to move in the front-rear direction. Furthermore, the housing 101 also includes a right cover 104 located on the right side of the powder compartment 102 in the left-right direction. The movable member 161 is movably supported on the right side of the developing cartridge 100 via the right cover 104. A connecting groove 104 extending in the front-back direction is provided on the right cover 104. A connecting buckle 161d that mates with the connecting groove 104a is provided at the bottom of the movable member 161. As a result, with the cooperation of the connecting buckle 161d and the connecting groove 104a, the movable member 161 can move relative to the right cover 104 in the front-back direction. That is, the movable member 161 can move relative to the housing 101 in the front-back direction. More specifically, the movable member 161 can move relative to the housing 101 between a first position and a second position in the front-back direction. The first position is closer to the front of the developing cartridge than the second position in the front-back direction. The elastic member 164 is used to apply a forward force in the front-rear direction to the movable member 161 to move the movable member 161 toward a first position. In this embodiment, the elastic member 164 is constructed as a tension spring and is closer to the front side of the developing cartridge 100 than the movable member 161 in the front-rear direction.

[0072] Furthermore, the first guide groove 161b extends from the left front side of the movable member 161 to the right rear side of the movable member 161. That is, the extension direction of the first guide groove 161b intersects the front-back direction and the left-right direction. The transmission rod 162 is restricted to move in the left-right direction, while the movable member 161 is restricted to move in the front-back direction. As a result, when the force-applying end 162b of the transmission rod 162 cooperates with the first guide groove 161b of the movable member 161, the force-applying end 162b is used to restrict the movement of the movable member 161 in the front-back direction and to make the movable member 161 move in the front-back direction as the transmission rod 162 moves in the left-right direction.

[0073] The drive gear 115 includes a gear portion 115d that meshes with the intermediate transmission gear. The gear portion 115d of the drive gear 115 has a half-tooth structure, meaning it has both toothed and non-toothed portions. When the drive gear 115 rotates in the M direction, the contact point between the force-bearing end 162a of the transmission rod 162 and the drive gear 115 moves from the end of the protrusion 115a to the first groove 115b. At this time, under the action of the retainer 163, the transmission rod 162 moves from right to left. Thus, the force-bearing end 162a of the transmission rod 162 enters the interior of the developing cartridge 100. Subsequently, under the continuous rotation of the drive gear 115, the force-bearing end 162a of the transmission rod 162 contacts the inclined surface 115b1, tilting due to the rotation of the drive gear 115. The force applied by surface 115b1 to the force-bearing end 162a of the transmission rod 162 in the left-right direction causes the transmission rod 162 to overcome the elastic force applied by the retaining member 163 to the transmission rod 162 in the left-right direction and move from left to right. Through the cooperation between the force-bearing end 162b and the first guide groove 161, the transmission rod 162 drives the movable member 161 to move in the front-back direction at a first speed. The detected protrusion 161a moves in the front-back direction together with the movable member 161 to actuate the detection body inside the imaging device at the first speed.When the contact point between the force-receiving end 162a of the transmission rod 162 and the drive gear 115 moves to the second groove 115c, under the action of the retaining member 163, the transmission rod 162 is pushed to move from right to left in the left-right direction. At this time, the non-toothed part of the drive gear 115 faces the intermediate transmission gear. Thus, the gear part 115d of the drive gear 115 disengages from the intermediate transmission gear, and the drive gear 115 is no longer driven by the drum connecting gear 114. The drive gear 115 no longer applies a rightward pushing force to the transmission rod 162 in the action direction. Under the action of the retaining member 163, the force-receiving end 162a of the transmission rod 162 moves to the inside of the second groove 115c in the left-right direction. In the left-right direction, the position of the force-receiving end 162a inside the second groove 115c is closer to the left than the position of the force-receiving end 162 inside the first groove 115b. At this time, the force-applying end 162b of the transmission rod 162 moves from the moving member 161... The first guide groove 161b enters the second guide groove 161c of the movable member 161. That is, when the force-bearing end 162 of the transmission rod 162 enters the second groove 115c of the drive gear 115, neither the drive gear 115 nor the transmission rod 162 is driven by the drum connecting gear 114. At the same time, the force-applying end 162b releases the restriction on the movement of the movable member 161 in the front-back direction. At this time, under the action of the elastic member 164, the movable member 161 moves in the front-back direction at a second speed that is faster than the first speed. The detected protrusion 161a moves in the front-back direction with the movable member 161 at the second speed to actuate the detection body inside the imaging device. The control unit (not shown) in the imaging device can identify the change in the rotation speed of the detection body and output a signal. Thus, the imaging device can output different signals according to the movement change of the detected part 160 in the developing cartridge, thereby identifying the specific model of the developing cartridge 100.

[0074] Optionally, the developing cartridge 100 also includes a right cover 104 and a lower cover 110. A support shaft extends from the top of the right cover 104, and the movable member 161 is supported on the top of the right cover 104 by the support shaft. The lower cover 110 covers the top of the housing 101. The cover 110 is located at the front end of the housing 101 in the front-rear direction and is used to cover the ribs at the bottom of the housing 101. As a result, the contact surface between the bottom of the housing 101 and the paper is increased and the paper is guided to move, thus preventing the paper from jamming.

[0075] Example 2:

[0076] Next, we will combine the appendix Figure 15 The following describes in detail Embodiment 2 of the present invention. Embodiment 2 provides a developing cartridge. The similarities between the developing cartridge of this embodiment and the developing cartridge of Embodiment 1 above will not be repeated here. The difference is that the elastic member in the developing cartridge 100 of this embodiment for providing a second speed to the moving part is different from that in Embodiment 1 above.

[0077] In this embodiment, the developing cartridge 100 includes a detection unit. When the developing cartridge 100 is installed in the imaging device, the detection unit is used to move a detection body inside the imaging device to transmit information such as the age of the developing cartridge 100 to the imaging device. The detection unit includes a movable member 161 with a detection protrusion 161a, a transmission rod 162, a retaining member 163, a triggering member 165, and an elastic part 166. The gear system of the developing cartridge 100 also includes a drum connecting gear 114 and a drive gear 115. The arrangement of the movable member 161, transmission rod 162, retaining rod 163, drum connecting gear 114, and drive gear 115 is generally similar to that in Embodiment 1 above, and will not be described again here.

[0078] An elastic part 166 is provided on the right cover 104. The elastic part 166 has a triggered state and a non-triggered state. The elastic part 166 can change from the non-triggered state to the triggered state according to the movement of the trigger member 165. In the non-triggered state, the elastic part 166 accumulates elastic potential energy. In the triggered state, at least a part of the elastic part 166 contacts the movable member 161 and releases elastic potential energy to the movable member 161 to push the movable member 161 to move from back to front in the front-rear direction at a second speed. As a result, the detected protrusion 161a moves from back to front in the front-rear direction at a second speed along with the movable member 161 and actuates the detection body inside the imaging device. The control unit (not shown) in the imaging device can identify the change in the rotation speed of the detection body and output a signal. Thus, the imaging device can output different signals according to the movement change of the detected part 160 in the developing cartridge, thereby identifying the specific model of the developing cartridge 100.

[0079] like Figure 15 As shown, specifically in this embodiment, the elastic part 166 is constructed as a torsion spring having a first end 166a and a second end 166b. In the front-rear direction, the first end 166a of the elastic part 166 is further away from the moving member 161 than the second end 166b. The elastic part 166 is disposed on the top of the right cover 104. The right cover 104 is provided with a connecting post 104b, a first locking part 104c, and a second locking part 104d that cooperate with the elastic part 166. In the non-triggered state, the first end 166a of the elastic part 166 cooperates with the first locking part 104c, while the second end 166b cooperates with the second locking part 104d. As a result, the elastic part 166 can maintain a state of accumulating elastic potential energy. In the triggered state, the first end 166a of the elastic part 166 is engaged with the first locking part 104c, and the second end 166d of the elastic part 166 no longer cooperates with the second locking part 104d but contacts the moving member 161.

[0080] The trigger 165 includes a force-receiving end 165a and a trigger end 165b. At least a portion of the force-receiving end 165a extends into the second guide groove 161c of the movable member 161. As a result, as described in Embodiment 1 above, when the contact point between the force-receiving end 162a of the transmission rod 162 and the drive gear 115 moves to the second groove 115c, the transmission rod 162 is pushed to move from right to left in the left-right direction under the action of the retaining member 163. At this time, the non-tooth portion of the drive gear 115 faces the central transmission gear, thus driving... The gear portion 115d of gear 115 disengages from the intermediate transmission gear, and the drive gear 115 is no longer driven by the drum connecting gear 114. The drive gear 115 no longer applies a rightward thrust to the transmission rod 162 in the direction of action. Under the action of the retainer 163, the force-bearing end 162a of the transmission rod 162 moves in the left-right direction into the interior of the second groove 115c. The position of the force-bearing end 162a inside the second groove 115c in the left-right direction is different from the position of the force-bearing end 162 inside the first groove 115b. Moving closer to the left, at this point, the force-applying end 162b of the transmission rod 162 enters the second guide groove 161c of the movable member 161 from the first guide groove 161b. As described in Embodiment 1 above, when the force-receiving end 162 of the transmission rod 162 enters the second groove 115c of the drive gear 115, neither the drive gear 115 nor the transmission rod 162 is subjected to the driving force of the drum connecting gear 114; when the force-applying end 162b of the transmission rod 162 enters the second guide groove 161c of the movable member 161... The force-applying end 162b releases the restriction on the movement of the movable member 161 in the front-back direction. At the same time, the force-applying end 162b of the transmission rod 162 can contact the force-receiving end 165a of the trigger member 165 and apply a pushing force to the force-receiving end 165a of the trigger member 165 to move the trigger member 166 relative to the housing 101. This causes the triggering end 165b of the trigger member 165 to trigger the elastic part 166, thereby causing the elastic part 166 to apply force to the movable member 161 to push the movable member 161 to move at a second speed in the front-back direction.Specifically, in this embodiment, the trigger 165 further includes a rotating pivot 165c. The trigger 165 is generally L-shaped. The force-receiving end 165a of the trigger 161 extends in the front-back direction, and the trigger end 165b of the trigger 161 extends in the left-right direction. The force-receiving end 165a includes a contact surface in the front-back direction to receive the force from the force-applying end 162b of the transmission rod 162. The trigger end 165b has a pushing surface that is inclined forward and upward at the top. When end 162b enters the second guide groove 161c from the first guide groove 161b of the movable member 161, the force-applying end 162b of the transmission rod 162 contacts the force-receiving end 165a of the trigger member 165 and applies a force from right to left to the force-receiving end 165a, so that the force-receiving end 165a of the trigger frame 165 drives the trigger member 165 to rotate around the rotation pivot 165c. In this way, the triggering end 165b of the trigger member 165 moves from back to front according to the right-to-left movement of the force-receiving end 165a. The force-pressing surface contacts the second end 166b of the elastic part 166 and pushes the second end 166b of the elastic part 166 in the vertical direction, causing the second end 166b of the elastic part 166 to disengage from the second latching part 104d. In other words, the trigger end 165b can change the elastic part 166 from a non-triggering state to a triggering state. In the triggering state, the elastic part 166 is connected between the movable member 161 and the right cover 104, thereby releasing elastic potential energy to the movable member 161 to push the movable member 161 to move from back to front in the front-back direction at a second speed. As a result, the detected protrusion 161a moves from back to front in the front-back direction at a second speed along with the movable member 161 and actuates the detection body inside the imaging device. The control unit (not shown) in the imaging device can identify the change in the rotation speed of the detection body and output a signal. Thus, the imaging device can output different signals according to the movement change of the detected part 160 in the developing cartridge, thereby identifying the specific model of the developing cartridge 100.

[0081] Example 3:

[0082] Next, we will combine the appendix Figure 16 The present invention will now be described in detail in Embodiment 3. Embodiment 3 provides a developing cartridge. The similarities between the developing cartridge of this embodiment and the developing cartridge of Embodiment 1 above will not be repeated here. The difference is that the elastic member in the developing cartridge 100 of this embodiment for providing a second speed to the moving part is different from that in Embodiments 1-2 above.

[0083] In this embodiment, the developing cartridge 100 includes a detection unit. When the developing cartridge 100 is installed in the imaging device, the detection unit is used to move the detection body inside the imaging device to transmit information such as the age of the developing cartridge 100 to the imaging device. The detection unit includes a movable member 161 with a detected protrusion 161a, a transmission rod 162, a retaining member 163, a pushing member 167, and a force-applying member. The gear system of the developing cartridge 100 also includes a drum connecting gear 114 and a drive gear 215. The transmission rod 162, the retaining rod 163, and the drum connecting gear 114 are generally similar to those in Embodiment 1 above, and will not be described again here.

[0084] In this embodiment, the drive gear 215 no longer has a second groove, and the gear portion 215d of the drive gear 215 is configured as a half-tooth structure. The inner side of the left cover 103 is recessed inward to form a groove 103a for accommodating the pusher 167. At least a portion of the pusher 167 is located inside the groove 103a and is movably supported by the groove 103a. In this embodiment, the force-applying member is constructed as a compression spring 168. The compression spring 168 is located inside the groove 103a and is arranged in the left-right direction. The two ends of the compression spring 168 in the left-right direction are respectively connected to the left cover 103 and the pusher 167. That is, the elastic force of the compression spring 168 acts between the left cover 103 and the pusher 167 in the left-right direction, so that the pusher 167 moves away from the left cover 103 in the left-right direction.

[0085] like Figure 16 As shown, the end of the pusher 167 away from the developing cartridge 100 abuts against the drive gear 215. The drive gear 215 has a through hole 215a, which is adapted to the pusher 167. The pusher 167 has a first state and a second state. The first state of the pusher 167 is the state in which the pusher 167 abuts against the drive gear 215. The second state of the pusher 167 is the state in which the pusher 167 passes through the through hole 215a of the drive gear 215. The drive gear 215 also includes a first groove 116b. The first groove 116b and the through hole 215a are spaced apart in the rotation direction M of the drive gear 215. The downstream side of the first groove 116b in the rotation direction N is constructed as an inclined surface 215b1 that intersects the left and right directions. When viewed in the left and right direction, the pusher 167 and the transmission rod 162 overlap by at least a portion.

[0086] When the drive gear 215 rotates under the driving force, the force-receiving end 162a of the transmission rod 162 contacts the inclined surface 215b1 of the drive gear 215, thereby causing the inclined surface 215b1 of the drive gear 215 to push the transmission rod 162 to move from left to right in the left-right direction at a first speed. After the drive gear 215 rotates a certain angle, the non-toothed part of the drive gear 115 faces the intermediate transmission gear. Thus, the gear part 115d of the drive gear 115 disengages from the meshing connection with the intermediate transmission gear, and the drive gear 115 is no longer driven by the drum connecting gear 114. At this time, the through hole 215a of the drive gear 215 rotates to a position aligned with the pusher 167. At this time, the compression spring 168 releases its elastic potential energy to push the pusher 167 from left to right. The through-hole 215a to the right contacts the force-receiving end 162a of the transmission rod 162, and pushes the transmission rod 162 to move from left to right at a second speed in the left-right direction, overcoming the elastic force of the retaining member 163. The movable member 161 moves from back to front in the front-back direction at a second speed along with the movement of the transmission rod 162 in the left-right direction. As a result, the detected protrusion 161a moves from back to front in the front-back direction at a second speed along with the movable member 161 and actuates the detection body inside the imaging device. The control unit (not shown) in the imaging device can identify the change in the rotation speed of the detection body and output a signal. Thus, the imaging device can output different signals according to the movement change of the detected part 160 in the developing cartridge, thereby identifying the specific model of the developing cartridge 100.

[0087] Example 4:

[0088] Next, we will combine the appendix Figure 17-24 The present invention will now describe in detail Embodiment 4, which provides a developing cartridge. The similarities between the developing cartridge of this embodiment and the developing cartridges of Embodiments 1-3 will not be repeated here. The difference is that the elastic member in the developing cartridge 100 of this embodiment for providing a second speed to the moving part is different from that in Embodiments 1-3.

[0089] like Figure 17-19 as well as Figure 22As shown, the developing cartridge 100 is provided with a detection unit, which includes a movable member 161 and a drive gear 315 for driving the movable member 161. The movable member 161 is located on the conductive side of the housing 101 in the left-right direction. The movable member 161 can move relative to the housing 101. When the developing cartridge 100 is installed in the imaging device, the movable member 161 can move a detection body (not shown) inside the imaging device to transmit information such as the age of the developing cartridge 100 to the imaging device. The gear system also includes a drive gear 315, a drum connecting gear 114, and at least one intermediate transmission gear for connecting the drum connecting gear 114 and the drive gear 315. When the developing cartridge 100 is installed in the imaging apparatus, the drum connecting gear 114 is connected to the photosensitive drum gear located at one end of the photosensitive drum in the left-right direction to receive the driving force of the photosensitive drum gear. Specifically, three intermediate transmission gears are provided between the drum connecting gear 114 and the drive gear 315: a first intermediate transmission gear 116, a second intermediate transmission gear 117, and a third intermediate transmission gear 118. Thus, through the transmission process of the three intermediate transmission gears 116, 117, and 118, the drive gear 315 receives the driving force from the drum connecting gear 114. In other words, the drive gear 315 can receive the driving force according to the drum connecting gear... The developing cartridge 100 rotates in response to the rotation of wheel 114. The developing cartridge 100 also includes a drive rod 162 and a retainer 163. The drive rod 162 spans the drive side and the conductive side of the housing 101 in the left-right direction. The movable member 161 is connected to the right side of the drive rod 162. The drive gear 315 extends a plurality of protrusions 315a in the left-right direction on the side near the powder hopper 101. When the drive gear 315 rotates, the drive gear 315 applies a rightward driving force to the drive rod 162 in the left-right direction, while the retainer 163 applies a leftward force to the drive rod 162 in the left-right direction. The arrangement of the drive gear 315 and the retainer 163 drives the movable member 161 to reciprocate relative to the housing 101, thereby actuating the detector (not shown) inside the imaging device to transmit information such as the age of the developing cartridge 100 to the imaging device.

[0090] like Figure 20 and Figure 22As shown, the drive gear 315 has multiple protrusions 315a and a forced pushing surface 315b on the side near the powder hopper 102. The protrusions 315a extend from the side of the drive gear 315 near the powder hopper 101 in the left-right direction. When the drive gear 315 receives the driving force and rotates around the axis extending in the left-right direction, the protrusions 315a apply a rightward forced pushing force in the left-right direction to the force-bearing part of the left end of the transmission rod 162, so that the transmission rod 162 moves from left to right in the left-right direction. The drive gear 315 is constructed as a semi-tooth gear with multiple gear teeth 315c. The drive gear 315 meshes with the third intermediate transmission gear 118 through the gear teeth 315c, thereby enabling the drive gear 315 to receive driving force and rotate around an axis extending in the left-right direction at a first speed. A torsion spring 216 is provided between the drive gear 315 and the housing 101. The torsion spring 216 can apply a pushing force to the drive gear 315, thereby enabling the drive gear 315 to rotate around a rotation axis extending in the left-right direction at a second speed greater than the first speed.

[0091] The following will be combined with the appendix Figure 21-24 This section describes in detail the detection process of the protrusion to be detected according to this utility model. The drive gear 315 is located as follows... Figure 21-22 As shown in the initial position, the drive gear 315 is in the position as follows: Figure 21-24 The gear teeth 315c at the upstream end in the M direction shown in the diagram mesh with the third intermediate transmission gear 118; when the drive gear 315 receives driving force through the intermediate transmission gears 116, 117 and 118, the drive gear 315 moves along the direction shown in the diagram. Figure 21-24 The M direction shown rotates at a first speed. During this process, under the action of the protrusion 315a, the drive gear 315 pushes the transmission rod 162 to move at a third speed in the left-right direction. The transmission rod 162 drives the movable part 161 to move at the third speed and actuate the detector (not shown) inside the imaging device to transmit information to the imaging device; as the drive gear 315 moves along the M direction as shown in the figure, the transmission rod 162 drives the movable part 161 to move at the third speed and actuate the detector (not shown) inside the imaging device to transmit information to the imaging device. Figure 21-24 After rotating by an angle R1 in the M direction as shown, as Figure 23-24 As shown, the gear teeth 315c of the drive gear 315 disengage from the third intermediate transmission gear 118. At this time, the torsion spring 216 contacts the forced pushing surface 315b of the drive gear 315 and applies a forcing force F to the forced pushing surface 315b of the drive gear 315. Under the action of the torsion spring 216, the drive gear 315 moves along the path at a second speed greater than the first speed. Figure 21-24As shown, the M direction is further rotated, and thus, driven by the protrusion 315a on the drive gear 315, the transmission rod 162 moves from left to right in the left-right direction at a fourth speed greater than the third speed. The transmission rod 162 drives the movable part 161 to move at a fourth speed greater than the third speed and actuates the detector (not shown) inside the imaging device to transmit information to the imaging device. The control unit (not shown) in the imaging device can identify the change in the actuation speed of the detector and output a signal; thus, the imaging device can output different signals according to the movement change of the movable part 161 in the developing cartridge, thereby identifying the specific model of the developing cartridge 100.

[0092] Example 5:

[0093] Next, we will combine the appendix Figure 25-32 The present invention will now be described in detail in Embodiment 5. Embodiment 5 provides a developing cartridge. The similarities between the developing cartridge of this embodiment and the developing cartridges of Embodiments 1-3 above will not be repeated here. The difference is that the elastic member in the developing cartridge 100 of this embodiment for providing a second speed to the moving part is different from that in Embodiments 1-3 above.

[0094] like Figure 25 As shown, the developing cartridge 100 is provided with a detection unit, which includes a detected component 261. The detected component 261 is located on the conductive side of the housing 101 in the left-right direction, and in the front-back direction, the detected component 261 is closer to the rear side of the housing 101 than the front side of the housing 101; as shown Figures 30-31 The detected component 261 is movable relative to the housing 101. Detected protrusions 261a, 261b, and 261c extend outward from the outer surface of the detected component 261. The detected protrusions 261a, 261b, and 261c can move relative to the housing 101 together with the detected component 261. When the developing cartridge 100 is installed in the imaging device, the detected protrusions 261a, 261b, and 261c can actuate a detection element (not shown) inside the imaging device to transmit information such as the age of the developing cartridge 100 to the imaging device. Specifically, in this embodiment, the detected component 261 can rotate about a detected component axis extending in the vertical direction, and the detected protrusions 261a, 261b, and 261c rotate together with the detected component 261 about the detected component axis extending in the vertical direction.

[0095] Specifically, such as Figures 29-30As shown, in order to drive the tested component 261 to move relative to the housing 101, the gear system of the developing cartridge 100 also includes a drum connecting gear 114 and a drive gear 250. The drum connecting gear 114 is located near the front side of the housing 101 in the front-rear direction, and is connected to the left end of the developing roller 120 in the left-right direction. When the developing cartridge 100 is installed in the drum cartridge, the drum connecting gear 114 is connected to the photosensitive drum gear located at one end of the photosensitive drum in the left-right direction to receive the driving force of the photosensitive drum gear, and can rotate uniformly relative to the developing roller 120 about the axis of the drum connecting gear extending in the left-right direction. The drive gear 250 is used to transmit the driving force from the drum connecting gear 114 to the tested component 261. The drive gear 250 can rotate uniformly about the axis of the drive gear extending in the vertical direction. In the front-rear direction, the drive gear 250 is located near the rear of the developing cartridge 100. Multiple intermediate transmission gears are provided between the drive gear 250 and the drum connecting gear 114, specifically, as shown in... Figures 29-30As shown, in this embodiment, four intermediate transmission gears are provided between the drive gear 250 and the drum connecting gear 114, namely, the first intermediate transmission gear 116, the second intermediate transmission gear 117, the third intermediate transmission gear 118 and the fourth intermediate transmission gear 119. Thus, the drive of the drum connecting gear 114 is transmitted to the drive gear 250 through the four intermediate transmission gears 116, 117, 118 and 119. The first intermediate transmission gear 116 meshes with the drum connecting gear 114, and the fourth intermediate transmission gear 119 meshes with the drive gear 250. The first intermediate transmission gear 116, the second intermediate transmission gear 117, the third intermediate transmission gear 118, and the fourth intermediate transmission gear 119 mesh sequentially in the front-rear direction. That is, the drive gear 114 can rotate at a constant speed according to the constant speed rotation of the drum connecting gear 114. Furthermore, at least one of the four intermediate transmission gears 116, 117, 118, and 119 is constructed as a double gear with two gear parts of different sizes. Specifically, in this embodiment, the second intermediate transmission gear 116... 7. Both the third intermediate transmission gear 118 and the fourth intermediate transmission gear 119 are configured as double gears with two gear portions of different sizes. The larger gear portion of the second intermediate transmission gear 117 meshes with the first intermediate transmission gear 116, and the smaller gear portion of the second intermediate transmission gear 117 meshes with the larger gear portion of the third intermediate transmission gear 118. The smaller gear portion of the third intermediate transmission gear 118 meshes with the larger gear portion of the fourth intermediate transmission gear 119, and the smaller gear portion of the fourth intermediate transmission gear 119 meshes with the drive gear 250. As a result, the rotational speed of the drive gear 250 after receiving the driving force from the drum connecting gear 114 is reduced. Furthermore, the rotational axis of the fourth intermediate transmission gear 119 intersects with the rotational axis of the drive gear 250. Optionally, the smaller gear portion of the fourth intermediate transmission gear 119 and the gear portion of the drive gear 250 can be constructed as bevel gears.

[0096] A connector 261d is provided between the drive gear 250 and the detected component 261, extending from the drive side of the housing 101 to the conductive side of the housing 101, such as... Figures 29-30As shown, in this embodiment, the connector 261d is constructed as a flexible connecting rope / belt. The drive gear 250 has a first outer surface, and the detected component 261 has a second outer surface. One end of the connector 261d is connected to the first outer surface of the drive gear 250, and the other end of the connector 261d is connected to the second outer surface of the detected component 261. At least a portion of the connector 261d is wrapped around the first and second outer surfaces. When the drive gear 250 receives the driving force from the drum connecting gear 114 and rotates at a constant speed about the drive gear axis extending in the vertical direction, the connector 261d is wrapped around the first outer surface. As a result, the connector 261d moves in the left-right direction toward the drive gear 250. The movement of the connector 261d causes the tested component 261 to rotate at a constant speed around the axis of the tested component extending in the vertical direction. The tested protrusions 261a, 261b and 261c can rotate at a constant speed with the tested component 261 relative to the housing 101 around the axis of the tested component extending in the vertical direction. When the developing cartridge 100 is installed in the imaging device, the rotation of the tested protrusions 261a, 261b and 261c can actuate the detection body 11 inside the imaging device to transmit information such as the age of the developing cartridge 100 to the imaging device.

[0097] Furthermore, the component being tested 261 can rotate at a constant speed around the rotation axis of the component being tested 261, which extends in the vertical direction, along with the drive gear 250.

[0098] Furthermore, the detected protrusion includes a first extension extending radially from the detected member 261, and at least one detected protrusion has a second extension extending vertically. Taking the position of the developing cartridge 100 as a reference when it is mounted on the imaging device, the detection body 11 can rotate relative to the imaging device and the developing cartridge 100 about a rotation axis extending in the left-right direction of the developing cartridge 100. In the vertical direction of the developing cartridge 100, the second extension is closer to the rotation axis of the detection body than the first extension; as a result, the second extension provides a greater rotational speed to the detection body 11 than the first extension. Specifically, as... Figures 31-32As shown, in this embodiment, the component to be detected 261 has a first detected protrusion 261a, a second detected protrusion 261b, and a third detected protrusion 261c. The first detected protrusion 261a, the second detected protrusion 261b, and the third detected protrusion 261c each have a first extension 261a1, 261b1, and 261c1 extending in the radial direction of the component to be detected 261, respectively. The third detected protrusion 261c also has a second extension 261c2 extending in the vertical direction. As a result, when the developing cartridge 100 is installed in the imaging device, and the component to be detected 261 rotates at a constant speed due to the driving force transmitted by the drive gear 250, the first detected protrusion 261a... The first extension 109a1 and the second extension 109b1 of the second detected protrusion 261b sequentially contact the detection body 11 inside the imaging device and actuate the detection body to move and rotate relative to the imaging device at a first speed. Then, the second extension 261c2 of the third detected protrusion 261c contacts the detection body 11 inside the imaging device and actuates the detection body to move and rotate relative to the imaging device at a second speed. The control unit (not shown) in the imaging device can identify the change in the rotation speed of the detection body and output a signal. Thus, the imaging device can output different signals according to the movement change of the detected part 160 in the developing cartridge, thereby identifying the specific model of the developing cartridge 100.

[0099] It should be noted that the arrangement of the multiple detection protrusions on the detected component 261 is not limited. The detection protrusions can all extend in the vertical direction. By setting the detection protrusions to extend in different ways in the vertical direction, the detection protrusions extending to different heights in the vertical direction will respectively cause the detection body to rotate at different speeds. That is to say, when the developing cartridge 100 is installed in the imaging device, the ends of the multiple detection protrusions of the detected component 261 have at least two different distances between them and the rotation axis of the detection body in the vertical direction. As a result, when the detected component 261 rotates at a constant speed, the multiple detection protrusions will respectively cause the detection body to move at two different speeds. The control unit (not shown) in the imaging device can identify the change in the rotation speed of the detection body and output a signal. Thus, the imaging device can output different signals according to the movement of the detected part 160 in the developing cartridge, thereby identifying the specific model of the developing cartridge 100.

[0100] Furthermore, the gear portion of the drive gear 250 is constructed as a half-tooth structure. As a result, after the imaging device completes the identification of the developing cartridge 100, the gear portion of the drive gear 250 disengages from the fourth intermediate transmission gear 119, thus preventing the movement of the detected component 261 from affecting the imaging operation of the developing cartridge 100.

[0101] Furthermore, such as Figure 25 , Figure 30 and Figure 31 As shown, the housing 101 also includes an upper cover plate 105 for protecting the tested component 261, the drive gear 250, and the connector 261d. The upper cover plate 105 has openings 105a on both sides in the left-right direction, communicating with the outside. As a result, the tested protrusions 261a, 261b, and 261c of the tested component 261 and the drive gear 250 are exposed to the outside of the upper cover plate 105 through the openings 105a. The tested component 261 has a reset part 261e, which is constructed as a cross groove. The reset part 261e is exposed to the top of the developing cartridge 100 through a through hole on the cover plate 105. As a result, when the developing cartridge 100 is recycled, the reset part 261e can receive external force and rotate the tested component 261 to its initial position, improving the efficiency of the developing cartridge 100 recycling.

[0102] Furthermore, such as Figure 26-27 As shown, the developing cartridge 100 also includes a right cover 104 and a lower cover 110. A support shaft extends from the top of the right cover 104, and the detected component 261 is supported on the top of the right cover 104 by the support shaft. The lower cover 110 covers the top of the housing 101. The cover 110 is located at the front end of the housing 101 in the front-rear direction and is used to cover the ribs at the bottom of the housing 101. As a result, the contact surface between the bottom of the housing 101 and the paper is increased and the paper is guided to move, thus preventing the paper from jamming.

[0103] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A developing cartridge, the developing cartridge comprising: A housing for containing developer, the housing having a first side and a second side separated from each other in a first direction; The developing roller is rotatable about an axis extending in the first direction; A gear that can receive a driving force from outside the developing cartridge, the gear being rotatable about a first axis extending in the first direction, the gear being located on the first side of the housing in the first direction; The developing cartridge is characterized in that it further includes: The component to be tested is located on the second side of the housing in the first direction, and the component to be tested can move relative to the housing at a first speed according to the rotation of the gear; An elastic member is disposed between the housing and the component being detected. The elastic member can apply a force to the component being detected to cause the component being detected to change from a first velocity to a second velocity. The detected component has a trigger position, at which the elastic component can cause the detected component to move at a second speed, which is different from the first speed.

2. The developing cartridge according to claim 1, characterized in that, The developing cartridge further includes a driving force transmission component that extends from the first side of the housing to the second side of the housing. One end of the driving force transmission component is connected to the gear, and the other end of the driving force transmission component is connected to the component being tested. The driving force transmission component is used to transmit the driving force of the gear to the component being tested.

3. The developing cartridge according to claim 2, characterized in that, The component to be tested has a first guide groove, a second guide groove, and a protrusion to be tested; The first guide groove cooperates with the driving force transmission component to drive the detected component to move, and the second guide groove communicates with the first guide groove; In the first direction, the detected protrusion is closer to the first side of the housing than the first guide groove and the second guide groove.

4. The developing cartridge according to claim 3, characterized in that, Viewed from a third direction intersecting the first direction, the first guide groove and the second guide groove are intersected.

5. The developing cartridge according to claim 1, characterized in that, The second speed is greater than the first speed.

6. The developing cartridge according to claim 1, characterized in that, The developing cartridge also includes a powder feeding roller, and in a second direction intersecting the first direction, all rotating components inside the housing are closer to the developing roller than the rotation axis of the powder feeding roller.

7. The developing cartridge according to claim 1, characterized in that, In a third direction intersecting the first direction, the distance between the bottom surface of the housing and the lower end of the housing gradually decreases as it extends towards the developing roller in a second direction intersecting the first direction.

8. The developing cartridge according to claim 1, characterized in that, The bottom of the housing is provided with ribs, and the developing cartridge also includes a cover plate, which is disposed on the ribs. In a second direction intersecting the first direction, at least a portion of the cover plate overlaps with the developing roller.

9. A developing cartridge, the developing cartridge comprising: A housing for containing developer, the housing having a first side and a second side separated from each other in a first direction; A gear that can receive a driving force from outside the developing cartridge, the gear being rotatable about a first axis extending in the first direction, the gear being located on the first side of the housing in the first direction; The developing chamber is characterized in that it further includes a detection component rotatable about a second axis extending upward about a third axis intersecting the first direction, the detection component being located on the second side of the housing in the first direction, and the detection component extending a first protrusion and a second protrusion in the radial direction of the detection component; The first protrusion and the second protrusion are arranged in the third direction, and the first protrusion and the second protrusion are spaced apart in the rotational direction of the component being tested.

10. The developing cartridge according to claim 9, characterized in that, The developing cartridge also includes a flexible member extending from the first side of the housing to the second side of the housing; one end of the flexible member is connected to the gear, and the other end of the flexible member is connected to the component being tested; the flexible member can move according to the rotation of the gear, and the component being tested can rotate according to the movement of the flexible member.

Images