Developer Box

Abstract

The present invention relates to a developing box, comprising a box body, a developing roller, a handle member and a movable member; wherein the handle member can move between a first position and a second position, and the movable member can move between a third position and a fourth position; in the length direction of the developing roller, the free end of the movable member extends from the box body at the fourth position and is further away from the handle member than at the third position; the movement of the handle member is associated with the movement of the movable member. The developing box of the present invention has the advantage of being easy to disassemble and assemble.

Description

Technical Field

[0001] The present invention relates to a developing box for an electronic photographic imaging device. Background Art

[0002] The developing cartridge is usually detachably mounted in an electrophotographic imaging device such as a laser printer, a copier, a fax machine, etc. In the case of contact development, during the imaging operation, the developing roller of the developing cartridge contacts the photosensitive drum and supplies developer to the photosensitive drum to develop the electrostatic latent image on the photosensitive drum.

[0003] During non-image forming operation (e.g., when the photosensitive drum is cleaned), the developing roller is usually controlled to separate from the photosensitive drum to avoid image quality degradation caused by the developing roller contacting the photosensitive drum for a long time. Therefore, a separation / contact mechanism is usually provided in the electrophotographic imaging device, which is used to make the developing roller and the photosensitive drum contact during the image forming operation and separate during the non-image forming operation.

[0004] A developer cartridge of the prior art includes a handle member and fixed protrusions respectively arranged at two longitudinal ends of a cartridge body, the fixed protrusions extending from the cartridge body in the longitudinal direction and being integrally formed with the cartridge body. After the developer cartridge is installed in an electrophotographic imaging device, a separation / contact mechanism in the electrophotographic imaging device can act on the fixed protrusions to change the position of the developer cartridge relative to the photosensitive drum, so that the developing roller moves between a separation position separated from the photosensitive drum and a contact position contacting the photosensitive drum.

[0005] The above-mentioned developer box is prone to the following problem: when the developer box is installed into (installation) or removed from (disassembly) an electronic photographic imaging device, the fixing protrusion may interfere with the separation / contact mechanism and / or other components in the electronic photographic imaging device, causing difficulty in installation and disassembly. Summary of the invention

[0006] The main purpose of the present invention is to provide a developer box which is easy to install and disassemble.

[0007] In order to achieve the above main purpose, the present invention provides a developing box, including a box body and a developing roller; wherein the developing box also includes:

[0008] a handle member movable between a first position and a second position;

[0009] A movable member is disposed on the box body and is movable between a third position and a fourth position; in the length direction of the developing roller, a free end of the movable member extends out of the box body at the fourth position and is further away from the handle member than at the third position;

[0010] The movement of the handle component is related to the movement of the movable component.

[0011] According to a specific embodiment of the present invention, the handle member is arranged to rotate between a first position and a second position, and a rotation axis of the handle member is arranged to be parallel to the developing roller.

[0012] According to another specific embodiment of the present invention, the handle member is configured to translate between a first position and a second position, and the translation direction of the handle member is perpendicular to the length direction of the developing roller.

[0013] According to a specific embodiment of the present invention, on a side of the box body away from the developing roller, the handle member protrudes more from the box body in the first position than in the second position.

[0014] According to a specific embodiment of the present invention, the movable member is configured to move along the length direction of the developing roller under the driving of the handle member.

[0015] According to a specific embodiment of the present invention, when the handle member moves from the first position to the second position, the movable member moves from the third position to the fourth position.

[0016] According to a specific embodiment of the present invention, in the third position, the free end of the movable member is retracted into the box body.

[0017] According to a specific embodiment of the present invention, the free end of the movable component has a conical surface or an inclined surface.

[0018] According to a specific embodiment of the present invention, a first slide groove is provided on one of the handle component and the movable component, a first sliding protrusion is provided on the other of the handle component and the movable component, the first slide groove is inclined relative to the developing roller, and the first sliding protrusion is arranged in the first slide groove.

[0019] Preferably, the first sliding groove is arranged on the handle component, and the first sliding protrusion is arranged on the movable component.

[0020] According to another specific embodiment of the present invention, a rocker component is provided between the handle component and the movable component, the rocker component is tilted relative to the developing roller, and two ends of the rocker component are rotatably connected to the handle component and the movable component respectively.

[0021] Preferably, a second slide groove and a third slide groove are respectively provided at both ends of the rocker component, the handle component has a second sliding protrusion rotatably connected to the second slide groove, and the movable component has a third sliding protrusion rotatably connected to the third slide groove.

[0022] According to a specific embodiment of the present invention, the developing box further includes a holding mechanism, and the holding mechanism is used to hold the handle component and the movable component in corresponding positions.

[0023] Further, the holding mechanism is arranged between the movable component and the box body.

[0024] Furthermore, the holding mechanism includes an elastic limiting portion arranged on the movable component, a first recessed portion and a second recessed portion arranged on the box body, and the elastic limiting portion is arranged in the first recessed portion or the second recessed portion, thereby holding the handle component and the movable component in corresponding positions.

[0025] According to a specific embodiment of the present invention, the movable component is rotatably connected to the box body and can rotate between a third position and a fourth position; the movable component and the handle component are connected by a linkage mechanism, and when the handle component moves from the first position to the second position, the movable component is driven to rotate from the third position to the fourth position through the linkage mechanism.

[0026] Furthermore, the above linkage mechanism includes:

[0027] A translation member is connected to the handle member and can move along the length direction of the developing roller driven by the handle member;

[0028] The connecting component has two ends which are rotatably connected to the translation component and the movable component respectively.

[0029] When the handle member moves from the first position to the second position, the translation member moves toward the inner side of the box body along the length direction of the developing roller, and drives the movable member to rotate from the third position to the fourth position through the connecting member.

[0030] Furthermore, the handle component is provided with a fourth slide groove which is arranged obliquely relative to the developing roller, and the translation component is provided with a fourth sliding protrusion, and the fourth sliding protrusion is arranged in the fourth slide groove.

[0031] Furthermore, a holding mechanism is provided between the translation member and the box body, and the holding mechanism is used to hold the handle member and the movable member at corresponding positions.

[0032] According to a specific embodiment of the present invention, the handle member is arranged on a side of the box body away from the developing roller; in the length direction of the developing roller, the handle member is located in the middle of the box body, and the movable members are symmetrically arranged on opposite sides of the handle member.

[0033] In the present invention, the movement of the handle member is associated with the movement of the movable member. During the disassembly and assembly process, the user can adjust the position of the movable member by operating the handle member to avoid or eliminate the interference between the movable member and the separation / contact mechanism and / or other components in the electronic photographic imaging device. Adjusting the position of the movable member by the handle member has the advantage of convenient operation.

[0034] In order to more clearly illustrate the purpose, technical solutions and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a first three-dimensional structural diagram of a developing cartridge embodiment 1 of the present invention;

[0036] Figure 2 is a second three-dimensional structural diagram of a developing cartridge embodiment 1 of the present invention;

[0037] Figure 3 is a first structural exploded view of a developing cartridge embodiment 1 of the present invention;

[0038] Figure 4 is a second structural exploded view of the developing cartridge embodiment 1 of the present invention;

[0039] Figure 5 is a first transverse cross-sectional view of the developing cartridge embodiment 1 of the present invention, wherein the handle member is in a first position;

[0040] Figure 6 is a second transverse cross-sectional view of the developing cartridge embodiment 1 of the present invention, wherein the handle member is in a second position;

[0041] Figure 7 The state of the developing cartridge embodiment 1 of the present invention when the handle member is in the second position is shown;

[0042] Figure 8 is a structural exploded view of a developing cartridge embodiment 2 of the present invention;

[0043] Fig. 9 2 is a three-dimensional structural diagram of a developing cartridge embodiment 3 of the present invention;

[0044] Fig.10 is a structural exploded view of a developing cartridge embodiment 3 of the present invention;

[0045] Fig.11 is a first transverse cross-sectional view of a developing cartridge embodiment 3 of the present invention, wherein the handle member is in a first position;

[0046] Fig.12 is a second transverse cross-sectional view of the developing cartridge embodiment 3 of the present invention, wherein the handle member is in a second position;

[0047] Fig.13 The state of the developing cartridge embodiment 3 of the present invention when the handle member is in the second position is shown;

[0048] Fig.14 is a perspective view of a developing cartridge embodiment 4 of the present invention;

[0049] Fig.15 is a structural exploded view of a developing cartridge embodiment 4 of the present invention;

[0050] Fig.16 The developing box embodiment 4 of the present invention is shown in the state where the handle member is in the second position. DETAILED DESCRIPTION

[0051] Example 1

[0052] like Figure 1 and 2 As shown, the developing box of Embodiment 1 includes a box body 11 and a developing roller 12 rotatably supported on the box body 11. A handle member 13 is provided on the side of the box body 11 away from the developing roller 12, and the handle member 13 is located approximately in the middle of the box body 11 in the length direction of the developing roller 12.

[0053] The handle member 13 can be rotatably connected to the box body 11. Figure 3 As shown, the box body 11 has a recessed portion 111 on one side away from the developing roller 12, and a pivot hole 112 is respectively provided on opposite sides of the recessed portion 111 in the length direction of the developing roller 12; the handle member 13 has a handle shaft 131, and the handle shaft 131 is rotatably disposed in the pivot hole 112, so that the handle member 13 can rotate around the handle shaft 131. The handle shaft 131 can be arranged to be parallel to the developing roller 12, and the rotation axis of the handle member 13 is also parallel to the developing roller 12 accordingly.

[0054] A rotation guide mechanism may be provided between the handle member 13 and the box body 11 to make the rotation process of the handle member 13 smoother. Figure 3 As shown, a guide protrusion 132 is provided on opposite sides of the handle member 13, and an arc-shaped guide groove 113 is provided on opposite sides of the recessed portion 111. The guide protrusion 132 is disposed in the arc-shaped guide groove 113. When the handle member 13 rotates, the guide protrusion 132 slides in the arc-shaped guide groove 113.

[0055] like Figure 3 and 4 As shown, two movable members 14 are also provided on the box body 11. In the length direction of the developing roller 12, the two movable members 14 are basically symmetrically arranged on opposite sides of the handle member 13. The movable member 14 includes a connecting portion 141 and a rod portion 142 that are integrally formed or fixedly connected. The box body 11 has a through-type guide hole 114, and the rod portion 142 is inserted into the guide hole 114. The end of the rod portion 142 away from the handle member 13 is formed as a free end portion 140 of the movable member 14, and the free end portion 140 has a conical surface or an inclined surface 1401, which facilitates the free end portion 140 to enter the separation / contact mechanism in the electrophotographic imaging device.

[0056] The movable member 14 can move in the length direction of the developing roller 12, and the movement of the movable member 14 is associated with the rotation of the handle member 13. For example, in the length direction of the developing roller 12, a first slide groove 133 is respectively provided on the opposite sides of the handle member 13, and the first slide groove 133 is inclined relative to the length direction of the developing roller 12. A first sliding protrusion 143 is provided on the connecting portion 141, and the first sliding protrusion 143 is arranged in the first slide groove 133. Through the cooperation between the first slide groove 133 and the first sliding protrusion 143, the movement of the handle member 13 is associated with the movement of the movable member 14. It is easy to understand that the first slide groove 133 can also be set on the connecting portion 141, and the first sliding protrusion 143 can be set on the handle member 13.

[0057] The handle member 13 can be Figure 2 or the first position shown in 5 and as Figure 6 or the second position shown in 7. Figure 5 and Figure 6 It can be seen from the comparison that, on the side of the box body 11 away from the developing roller 12, the handle member 13 protrudes more from the box body 11 in the first position than in the second position. That is, if the distance between the far end of the handle member 13 and the axis of the developing roller 12 in the first position is defined as H11 (see Figure 5 ), the distance between the distal end of the handle member 13 and the axis of the developing roller 12 in the second position is H12 (see Figure 6 ), then H11 is greater than H12.

[0058] When the handle member 13 is rotated between the first position and the second position, the movable member 14 is associated with the third position and the fourth position. Figure 2 As shown, when the handle member 13 is in the first position, the movable member 14 is in the third position, and the free end 140 of the movable member 14 is retracted into the box body 11 (ie, does not extend from the longitudinal end of the box body 11). Figure 7 As shown, when the handle member 13 rotates from the first position to the second position, the movable member 14 translates from the third position to the fourth position in the length direction of the developing roller 12 , and the free end 140 of the movable member 14 extends out of the box body 11 from the guide hole 114 .

[0059] Of course, in the third position, the free end 140 of the movable member 14 can also extend out of the box body 11, as long as its extension displacement in the third position is smaller than that in the fourth position; that is, the free end 140 of the movable member 14 is farther away from the handle member 13 in the fourth position than in the third position.

[0060] like Figure 7 As shown, in the direction away from the developing roller 12 (ie Figure 7 In the upward direction), the downstream end of the first chute 133 ( Figure 7 The upper end of the middle) is higher than the upstream end ( Figure 7 The lower end of the handle member 13 is closer to the free end of the movable member 14. In this way, when the handle member 13 is rotated from the first position to the second position, the movable member 14 will move toward the longitudinal end of the box body 11, move from the third position to the fourth position, and then extend out of the longitudinal end of the box body 11. Correspondingly, when the handle member 13 is rotated from the second position to the first position, the movable member 14 will move toward the inner side of the box body 11 and then retract into the box body 11.

[0061] Please refer again Figure 5 , the developing box can be installed in the electronic photographic imaging device along the L direction. Before installation, the handle member 13 is located in the first position and the movable member 14 is located in the third position. This state can be achieved by relying on the gravity of the developing box when holding the handle member 13. During the installation process, the corresponding force-applying part in the electronic photographic imaging device (for example, the crossbeam located above the developing box) will apply a force to the handle member 13, so that the handle member 13 rotates from the first position to the second position along the R direction, and the movable member 14 translates from the third position to the fourth position accordingly. At this time, the free end 140 of the movable member 14 extends from the longitudinal end of the box body 11, and the separation / contact mechanism in the electronic photographic imaging device can act on the free end 140, so that the developing roller 12 is separated from or in contact with the photosensitive drum.

[0062] When removing the developing cartridge from the electrophotographic image forming apparatus, the user can change the position of the movable member 14 by manipulating the handle member 13 to avoid or eliminate interference of the free end portion 140 with the separation / contact mechanism or other components in the electrophotographic image forming apparatus.

[0063] Example 2

[0064] Figure 8 2 is a structural exploded view of the developing cartridge embodiment 2. Figure 8 As shown, the handle member 13 has a handle shaft 131 and a guide protrusion 132, the box body 11 is provided with a pivot hole 112 and a guide arc surface 115, the handle shaft 131 is rotatably disposed in the pivot hole 112, and the guide protrusion 132 is carried on the guide arc surface 115. When the handle member 13 rotates around the handle shaft 131 between the first position and the second position, the guide protrusion 132 slides on the guide arc surface 115.

[0065] In Embodiment 2, the developing box further comprises a retaining mechanism for retaining the handle member 13 and the movable member 14 at their respective positions. The retaining mechanism may be disposed between the movable member 14 and the box body 11 or between the handle member 13 and the box body 11. Figure 8The holding mechanism provided between the movable member 14 and the box body 11 is shown, and the holding mechanism includes an elastic buckle 144 provided on the movable member 14, a first recessed portion 116 and a second recessed portion 117 provided on the box body 11, and the elastic buckle 144 has a locking protrusion 1441 as an example of an elastic limiting portion, and the locking protrusion 1441 is provided in the first recessed portion 116 or the second recessed portion 117, so as to keep the handle member 13 and the movable member 14 in the corresponding position. The elastic buckle 144 can be provided on the connecting portion 141, and constitute a part of the connecting portion 141.

[0066] Specifically, in the length direction of the developing roller 12, the first recessed portion 116 is located inside the second recessed portion 117. When the locking protrusion 1441 is disposed in the first recessed portion 116, the handle member 13 is maintained at the first position and the movable member 14 is maintained at the third position; when the locking protrusion 1441 is disposed in the second recessed portion 117, the handle member 13 is maintained at the second position and the movable member 14 is maintained at the fourth position.

[0067] Before installation, the handle member 13 is located at the first position and the movable member 14 is located at the third position. During the installation process, the corresponding force-applying part in the electronic photographic imaging device will apply a force to the handle member 13, so that the handle member 13 rotates from the first position to the second position. During this process, the locking protrusion 1441 of the elastic buckle 144 will be forced to escape from the first recessed portion 116, and the movable member 14 can be translated from the third position to the fourth position accordingly. When the handle member 13 rotates to the second position, the movable member 14 moves to the fourth position, and at this time, the locking protrusion 1441 of the elastic buckle 144 just enters the second recessed portion 117, thereby keeping the handle member 13 in the second position and the movable member 14 in the fourth position.

[0068] For the description of other aspects of the developing box embodiment 2, please refer to embodiment 1 and will not be repeated here.

[0069] Example 3

[0070] Fig. 9 and 10 The structure of the developing box embodiment 3 is shown. As shown in Figures 9 and 10, in the embodiment 3, the box body 31 has a recessed portion 311 on one side relative to the developing roller, and the recessed portion 311 is located approximately in the middle of the box body 31 in the length direction of the developing roller. The handle member 33 is arranged facing the recessed portion 311 and can be translated between a first position and a second position. After moving to the second position, a part of the handle member 33 will enter the recessed portion 311. The translation direction of the handle member 33 can be perpendicular to the length direction of the developing roller.

[0071] Two movable members 34 are provided on the box body 31. In the length direction of the developing roller, the two movable members 34 are substantially symmetrically arranged on opposite sides of the handle member 33. The movable member 34 is rod-shaped, and a guide groove 312 is provided on the box body 31. The movable member 34 is slidably arranged in the guide groove 312. In association with the movement of the handle member 33, the movable member 34 can be translated from the third position to the fourth position in the length direction of the developing roller.

[0072] A rocker member 35 is provided between the movable member 34 and the handle member 33. The rocker member 35 is rotatably provided on the box body 31 to associate the movement of the handle member 33 with the movement of the movable member 34. Fig.10 As shown, a pivot hole 313 is provided on the box body 31 , and a rotation shaft 351 is provided approximately in the middle of the rocker component 35 . The rotation shaft 351 is rotatably disposed in the pivot hole 313 , so that the rocker component 35 can rotate around the rotation shaft 351 .

[0073] The two ends of the rocker member 35 are rotatably connected to the movable member 34 and the handle member 33, respectively. For example, the two ends of the rocker member 35 are respectively provided with a second slide groove 353 and a third slide groove 352, the handle member 33 has a second sliding protrusion 331 rotatably connected to the second slide groove 353, and the movable member 34 has a third sliding protrusion 342 rotatably connected to the third slide groove 352. The end of the second sliding protrusion 331 can form an anti-detachment head 332 to prevent the rocker member 35 and the handle member 33 from being separated. The end of the third sliding protrusion 342 can form an anti-detachment head 3421 to prevent the movable member 34 and the rocker member 35 from being separated.

[0074] The handle member 33 can be Fig.11 The first position shown and Fig.12 The handle member 33 is translated between the second positions shown in the figure, and the translation direction of the handle member 33 is perpendicular to the length direction of the developing roller. Fig.11 and Fig.12 It can be seen from the comparison that, on the side of the box body 31 away from the developing roller 12, the distal end of the handle member 33 protrudes more from the box body 31 in the first position than in the second position. In other words, if the distance between the distal end of the handle member 33 and the axis of the developing roller 12 in the first position is defined as H31 (see Fig.11 ), the distance between the distal end of the handle member 33 and the axis of the developing roller 12 in the second position is H32 (see Fig.12 ), then H31 is greater than H32.

[0075] When the handle member 33 translates between the first position and the second position, the movable member 34 moves between the third position and the fourth position in association. Fig. 9As shown, when the handle member 33 is located at the first position, the movable member 34 is located at the third position, and the free end 340 of the movable member 34 is retracted into the box body 31 (ie, does not extend from the longitudinal end of the box body 31). Fig.13 As shown, when the handle member 33 is translated from the first position to the second position, the movable member 34 is translated from the third position to the fourth position in the length direction of the developing roller 12, and the free end 340 of the movable member 34 is extended out of the box body 31. The free end 340 of the movable member 34 also forms a conical surface or inclined surface 3401.

[0076] In addition, in the third position, the free end 340 of the movable member 34 can also extend out of the box body 31, as long as its extension displacement in the third position is smaller than that in the fourth position. In other words, the free end 340 of the movable member 34 is further away from the handle member 33 in the fourth position than in the third position.

[0077] like Fig.13 As shown, in the direction away from the developing roller (i.e. Fig.13 In the upward direction), the downstream end ( Fig.13 The upper end of the middle) is higher than the upstream end ( Fig.13 The lower end of the handle member 33 is further away from the free end 340 of the movable member 34. In this way, when the handle member 33 moves from the first position to the second position, the movable member 34 will move toward the longitudinal end of the box body 31, move from the third position to the fourth position, and then extend out of the longitudinal end of the box body 31. Correspondingly, when the handle member 33 moves from the second position to the first position, the movable member 34 will move toward the inner side of the box body 31, and then retract into the box body 31.

[0078] Please refer again Fig.11 , the developing box can be installed in the electronic photographic imaging device along the L direction. Before installation, the handle member 33 is located at the first position and the movable member 34 is located at the third position. During the installation process, the corresponding force-applying part in the electronic photographic imaging device (for example, the crossbeam located above the developing box) will apply a force to the handle member 33, so that the handle member 33 is translated from the first position to the second position along the M direction, and the movable member 34 is translated from the third position to the fourth position accordingly. At this time, the free end 340 of the movable member 34 extends from the longitudinal end of the box body 31, and the separation / contact mechanism in the electronic photographic imaging device can act on the free end 340, so that the developing roller 12 is separated from or in contact with the photosensitive drum. The disassembly operation of the developing box embodiment 3 can refer to embodiment 1, and will not be repeated.

[0079] Example 4

[0080] Fig.14 and 15 The structure of the developing box embodiment 4 is shown. Fig.14 and 15 As shown, in the developing box of Embodiment 4, a handle member 43 is provided on the side of the box body 41 away from the developing roller. The handle member 43 is located approximately in the middle of the box body 41 in the length direction of the developing roller.

[0081] The handle member 43 can be rotatably connected to the box body 41. Fig.15 As shown, the box body 41 has a recessed portion on one side relative to the developing roller, and pivot holes 411 are provided on opposite sides of the recessed portion. The handle member 43 has a handle shaft 431, and the handle shaft 431 is rotatably disposed in the pivot hole 411, so that the handle member 43 can rotate around the handle shaft 431. The rotation axis of the handle member 43 is also parallel to the developing roller.

[0082] The box body 41 is provided with guide arc surfaces 412 on opposite sides of the recessed portion, and the handle member 43 is provided with sliding protrusions 432 supported on the guide arc surfaces 412 on opposite sides. When the handle member 43 rotates, the sliding protrusions 432 slide on the guide arc surfaces 412.

[0083] Both longitudinal ends of the box body 41 are provided with movable members 44, and in the length direction of the developing roller, the movable members 44 are symmetrically arranged relative to the handle member 43. The middle portion of the movable member 44 (the portion located between the two ends of the movable member 44) is rotatably connected to the box body 41. Fig.15 As shown, the middle of the movable member 44 has a pivot hole 441, and the longitudinal end of the box body 41 is provided with a rotating shaft 413, which is arranged in the pivot hole 441, and the movable member 44 can rotate around the rotating shaft 413. The end of the movable member 44 away from the handle member 43 is a free end 440, and the free end 440 has an inclined surface 4401.

[0084] like Fig.14 and 15 As shown, the movable member 44 and the handle member 43 are connected by a linkage mechanism 45, so that the rotation of the movable member 44 is associated with the rotation of the handle member 43. When the handle member 43 rotates from the first position to the second position, the movable member 44 rotates from the first position to the second position. Fig.14 The third position shown is rotated to Fig.16 In the fourth embodiment, the first position and the second position of the handle member 43 can refer to the first position and the second position of the handle member 13 in the first embodiment.

[0085] The linkage mechanism 45 includes a translation member 451 and a connecting member 452. The translation member 451 is slidably disposed on the box body 41 and can translate in the length direction of the developing roller. The translation member 451 is provided with a fourth sliding protrusion 4511, and the handle member 43 is provided with a fourth sliding groove 433, the fourth sliding groove 433 is inclined relative to the developing roller, and the fourth sliding protrusion 4511 is disposed in the fourth sliding groove 433.

[0086] The two ends of the connecting member 452 are rotatably connected to the adjacent ends of the translation member 451 and the movable member 44. When the handle member 43 is rotated from the first position to the second position, the translation member 451 moves toward the inner side of the box body 41 in the length direction of the developing roller through the cooperation of the fourth sliding groove 433 and the fourth sliding protrusion 4511, and further drives the movable member 44 to rotate from the third position to the fourth position through the connecting member 452.

[0087] In the third position, Fig.14 As shown, the free end 440 of the movable member 44 is retracted into the box body 41; in the fourth position, as shown Fig.16 As shown, the free end 440 of the movable member 44 extends out from the longitudinal end of the box body 41. Similarly, in the third position, the free end 440 of the movable member 44 can also extend out of the box body 41, as long as its extension displacement in the third position is less than that in the fourth position. In other words, the free end 440 of the movable member 44 is further away from the handle member 43 in the fourth position than in the third position.

[0088] like Fig.16 As shown, in the direction away from the developing roller (i.e. Fig.16 In the upward direction), the downstream end of the fourth chute 433 ( Fig.16 The upper end of the middle) is higher than the upstream end ( Fig.16 The lower end of the handle member 43 is further away from the free end 440 of the movable member 44. In this way, when the handle member 43 rotates from the first position to the second position, the translation member 451 will translate toward the inner side of the box body 41, and drive the movable member 44 to rotate through the connecting member 452, so that the free end of the movable member 44 extends out of the longitudinal end of the box body 41. When the handle member 43 rotates from the second position to the first position, the translation member 451 will translate toward the outer side of the box body 41, and drive the movable member 44 to rotate in the opposite direction through the connecting member 452, so that the free end of the movable member 44 retracts into the inside of the box body 41.

[0089] Furthermore, a holding mechanism is provided between the translation member 451 and the box body 41, and the holding mechanism is used to hold the handle member 43 and the movable member 44 in corresponding positions. Fig.15As shown, the retaining mechanism includes an elastic clip 4512 arranged on the translation member 451, a first recessed portion 414 and a second recessed portion 415 arranged on the box body 41, and the locking protrusion of the elastic clip 4512 is arranged in the first recessed portion 414 or the second recessed portion 415, thereby maintaining the handle member 43 and the movable member 44 in corresponding positions.

[0090] Specifically, in the length direction of the developing roller, the first recessed portion 414 is located inside the second recessed portion 415. When the locking protrusion of the elastic buckle 4512 is disposed in the second recessed portion 415, the handle member 43 is maintained at the first position and the movable member 44 is maintained at the third position; when the locking protrusion of the elastic buckle 4512 is disposed in the first recessed portion 414, the handle member 43 is maintained at the second position and the movable member 44 is maintained at the fourth position.

[0091] It is easy to understand that the technical features of the embodiments of the present invention can be combined with each other unless there is a conflict. For example, the handle member 13 of the embodiment 1 can be set to translate between the first position and the second position like the handle member 33 of the embodiment 3, which can also realize the movement of the movable member 14 between the third position and the fourth position.

[0092] Although the present invention is disclosed as above with specific embodiments, it is not intended to limit the scope of the present invention. Any person skilled in the art can make some changes or substitutions without departing from the scope of the present invention, that is, all equivalent changes made according to the present invention should be covered by the protection scope of the present invention.

Claims

1. A developing box, comprising a box body and a developing roller; wherein: The developing box also includes: a handle member, movable between a first position and a second position; on a side of the box body away from the developing roller, the handle member protrudes further from the box body in the first position than in the second position; a movable member, disposed on the box body and capable of moving between a third position and a fourth position; in the length direction of the developing roller, a free end portion of the movable member protrudes from the box body at the fourth position and is further away from the handle member than at the third position; Wherein, the movement of the handle component is associated with the movement of the movable component; when the handle component moves from the first position to the second position, the movable component moves from the third position to the fourth position.

2. The developing cartridge according to claim 1; wherein: The handle member is arranged to rotate between the first position and the second position, and a rotation axis of the handle member is arranged parallel to the developing roller.

3. The developing cartridge according to claim 1; wherein: The handle member is configured to translate between the first position and the second position, and the translation direction of the handle member is perpendicular to the length direction of the developing roller.

4. The developing cartridge according to claim 1; wherein: The movable member is configured to move along the length direction of the developing roller under the driving of the handle member.

5. The developing cartridge according to claim 1; wherein: In the third position, the free end of the movable member is retracted into the box body.

6. The developing cartridge according to claim 1; wherein: The free end of the movable component has a conical surface or an inclined surface.

7. The developing cartridge according to claim 1; wherein: A first slide groove is provided on one of the handle component and the movable component, and a first sliding protrusion is provided on the other of the handle component and the movable component. The first slide groove is inclined relative to the developing roller, and the first sliding protrusion is arranged in the first slide groove.

8. The developing cartridge according to claim 7; wherein: The first sliding groove is arranged on the handle component, and the first sliding protrusion is arranged on the movable component.

9. The developing cartridge according to claim 1; wherein: A rocker component is provided between the handle component and the movable component. The rocker component is tilted relative to the developing roller. Two ends of the rocker component are rotatably connected to the handle component and the movable component respectively.

10. The developing cartridge according to claim 9; wherein: The two ends of the rocker component are respectively provided with a second slide groove and a third slide groove, the handle component is provided with a second sliding protrusion rotatably connected to the second slide groove, and the movable component is provided with a third sliding protrusion rotatably connected to the third slide groove.

11. The developing cartridge according to claim 1; wherein, Also included is a holding mechanism for holding the handle component and the movable component in corresponding positions.

12. The developing cartridge according to claim 11; wherein, The holding mechanism is arranged between the movable member and the box body.

13. The developing cartridge according to claim 12; wherein, The holding mechanism includes an elastic limiting portion arranged on the movable component, a first recessed portion and a second recessed portion arranged on the box body, and the elastic limiting portion is arranged in the first recessed portion or the second recessed portion, so as to keep the handle component and the movable component in corresponding positions.

14. The developing cartridge according to claim 1; wherein: The movable component is rotatably connected to the box body and can rotate between the third position and the fourth position; the movable component and the handle component are connected by a linkage mechanism, and when the handle component moves from the first position to the second position, the movable component is driven to rotate from the third position to the fourth position through the linkage mechanism.

15. The developing cartridge according to claim 14, wherein: The linkage mechanism comprises: A translation member connected to the handle member and capable of moving along the length direction of the developing roller driven by the handle member; A connecting member, two ends of which are rotatably connected to the translation member and the movable member respectively; When the handle member moves from the first position to the second position, the translation member moves toward the inner side of the box body along the length direction of the developing roller, and drives the movable member to rotate from the third position to the fourth position through the connecting member.

16. The developing cartridge according to claim 15; wherein, The handle member is provided with a fourth slide groove which is arranged obliquely relative to the developing roller. The translation member is provided with a fourth sliding protrusion which is arranged in the fourth slide groove.

17. The developing cartridge according to claim 15; wherein, A holding mechanism is provided between the translation member and the box body, and the holding mechanism is used to hold the handle member and the movable member at corresponding positions.

18. The developing cartridge according to claim 1; wherein, The handle member is arranged on a side of the box body away from the developing roller; in the length direction of the developing roller, the handle member is located in the middle of the box body, and the movable members are symmetrically arranged on opposite sides of the handle member.

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