Processing box

Abstract

The processing box is detachably mounted on electronic imaging equipment and comprises a first driving mechanism and a second driving mechanism, the first driving mechanism is used for driving a developing roller to rotate by driving force from a photosensitive driving mechanism, and the second driving mechanism is used for driving a photosensitive drum to rotate by driving force from a developing driving mechanism. According to the processing box disclosed by the utility model, the gear structure is additionally arranged, and the first driving mechanism and the second driving mechanism are arranged, so that another driving mode different from that in the prior art is provided, and further, the stability of driving force transmission is improved, and the printing quality is ensured; therefore, the drive connection between the processing box drive and the electronic imaging equipment drive mechanism is stable, the drive transmission is smooth, and the use quality of the processing box is improved.

Description

Technical Field

[0001] The utility model relates to electronic imaging equipment, in particular to a processing box. Background Art

[0002] An electronic imaging device forms an image on a recording material (such as paper) using an electronic photographic imaging process. Examples of electronic imaging devices include an electronic photographic copier, an electronic photographic printer, a fax machine, a word processor, and the like. The cartridge includes at least one of an electronic photographic photosensitive drum as a photosensitive member and a developing member (such as a developing roller) that can act on the drum, and the photosensitive member and the developing member may also be integrally constructed as a cartridge (which may be referred to as a process cartridge) that can be detachably mounted in the electronic imaging device.

[0003] Chinese patent application CN113574469A discloses a dual-drive structure processing box, wherein the photosensitive driving member and the developing driving member receive the drive from the photosensitive driving mechanism and the developing driving mechanism of the electronic imaging device respectively, thereby driving the photosensitive drum and the developing roller to rotate respectively, and in addition, a force receiving member cooperates with the separation control mechanism of the electronic imaging device to achieve the contact or separation of the photosensitive drum and the developing roller. When the force receiving member receives the separation force of the separation control mechanism of the electronic imaging device, the photosensitive drum and the developing roller in the processing box are separated, and a retaining member is used to maintain the photosensitive drum and the developing roller in a separated state; when the force receiving member receives the contact force of the separation control mechanism of the electronic imaging device, the retaining member fails, and the photosensitive drum and the developing roller in the processing box are in contact.

[0004] The existing processing box has a complex drive head engagement structure, which is prone to interference. In addition, this model of processing box is not equipped with a cleaning scraper, and the pressure applied to the photosensitive drum is insufficient, which causes the photosensitive drum to rotate faster during operation and affects the printing quality. Therefore, the existing processing box has the problem of unstable connection between the box drive and the main component of the electronic imaging device, and the drive transmission is not smooth. Utility Model Content

[0005] According to one aspect of the utility model, there is provided a processing cartridge which can be detachably mounted on an electronic imaging device, comprising:

[0006] Photosensitive frame;

[0007] A photosensitive drum is rotatably arranged on the photosensitive frame;

[0008] The first driving mechanism comprises a first driving member, which is rotatably sleeved on the photosensitive drum and is used to receive the driving force of the photosensitive driving mechanism of the electronic imaging device;

[0009] Development frame;

[0010] A developing roller rotatably disposed on the developing frame;

[0011] The second driving mechanism includes a second driving member, which is rotatably sleeved on the developing frame and is used to receive the driving force of the developing driving mechanism of the electronic imaging device;

[0012] It is characterized in that the first driving mechanism uses the driving force from the photosensitive driving mechanism to drive the developing roller to rotate, and the second driving mechanism uses the driving force from the developing driving mechanism to drive the photosensitive drum to rotate.

[0013] The processing box of the utility model is added with a gear structure. Through the arrangement of the first driving mechanism and the second driving mechanism, the photosensitive drum is driven by the developing driving mechanism of the electronic imaging device, and the developing roller is driven by the photosensitive driving mechanism of the electronic imaging device, providing another driving method different from the prior art, thereby increasing the stability of driving force transmission to ensure printing quality, thereby making the driving connection between the processing box drive and the electronic imaging device drive mechanism stable, the driving transmission smooth, and improving the use quality of the processing box.

[0014] In some embodiments, the first driving mechanism further includes a first driving gear, a first transmission gear, a second transmission gear, and a developing gear.

[0015] In some embodiments, the first driving gear is fixedly mounted on the first driving member.

[0016] In some embodiments, the first transmission gear is rotatably disposed on the photosensitive frame and meshes with the first driving gear.

[0017] In some embodiments, the second driving mechanism further includes a second driving gear, a third transmission gear and a photosensitive gear.

[0018] In some embodiments, the second driving gear is fixedly mounted on the second driving member.

[0019] In some embodiments, the third transmission gear is rotatably disposed on the developing roller and is meshed with the second driving gear.

[0020] In some embodiments, the photosensitive gear is fixedly sleeved on the photosensitive drum.

[0021] In some embodiments, the third transmission gear and the photosensitive gear are configured such that when the developing frame is in the abutment position, the two are engaged, thereby transmitting the driving force of the developing drive mechanism of the electronic imaging device to the photosensitive drum via the second driving gear, the third transmission gear and the photosensitive gear in sequence.

[0022] In some embodiments, the developing roller is rotatably disposed in a developing frame therein, and the developing frame is configured to be rotatable relative to the photosensitive frame between a contact position and a separation position, so that the photosensitive drum and the developing roller contact or separate from each other.

[0023] In some embodiments, the first transmission gear and the second transmission gear are configured to move between a first meshing position and a second meshing position when the second transmission gear rotates with the developing frame between an abutting position and a separating position.

[0024] In some embodiments, the first transmission gear and the second transmission gear remain engaged regardless of the first engagement position, the second engagement position and during the movement, thereby transmitting the driving force of the photosensitive driving mechanism of the electronic imaging device to the developing roller via the first driving gear, the first transmission gear, the second transmission gear and the developing gear in sequence.

[0025] The utility model provides another processing box, which can be detachably installed on an electronic imaging device, comprising:

[0026] Photosensitive frame;

[0027] A photosensitive drum rotatably mounted on the photosensitive frame and capable of axially moving relative to the photosensitive frame;

[0028] The elastic device is arranged between the photosensitive frame and the photosensitive drum and is used to realize axial resetting of the photosensitive drum.

[0029] The processing box of the utility model, when installed on the electronic imaging device, the photosensitive driving mechanism of the electronic imaging device is engaged with the first driving component of the processing box. During the engagement process, the photosensitive driving mechanism of the electronic imaging device applies a certain force to the first driving component of the processing box, and the photosensitive drum moves axially toward the non-driving side to avoid the photosensitive driving mechanism of the electronic imaging device. The elastic device is compressed. When the first driving component of the processing box and the photosensitive driving mechanism of the electronic imaging device are rotated to the corresponding engagement position, due to the action of the elastic device, the first driving component of the processing box moves axially toward the driving side to reset, and is tightly engaged with the photosensitive driving mechanism of the electronic imaging device to stably receive the driving force, thereby solving the problem in the prior art that when the first driving component of the processing box and the photosensitive driving mechanism of the electronic imaging device are engaged, due to the complex structures of the two, they contact and press each other in a rigid manner, which may cause mutual interference, jamming or failure to engage.

[0030] In some embodiments, the photosensitive frame includes a non-driving side end cover disposed on the non-driving side thereof, and the elastic device is a spring disposed between the non-driving side end cover and the non-driving end of the photosensitive drum.

[0031] In some embodiments, a relief groove is provided on the non-driving side end cover, which is used to accommodate the non-driving end of the photosensitive drum moving axially toward the non-driving side end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the processing box of the first embodiment of the utility model, omitting the fixing platform;

[0033] Figure 2 It is a side perspective view of the processing box of the first embodiment of the utility model, omitting the fixing platform;

[0034] Figure 3 This is a schematic structural diagram of the connecting shaft of the first embodiment of the utility model;

[0035] Figure 4 It is a structural schematic diagram of the processing box of the first embodiment of the utility model from another angle;

[0036] Figure 5 It is a structural schematic diagram of a processing box according to a second embodiment of the utility model;

[0037] Figure 6 This is a structural exploded view of a processing box according to a second embodiment of the present utility model;

[0038] Figure 7 This is a schematic diagram of the structure of the second embodiment of the utility model, which mainly includes a first driving mechanism;

[0039] Figure 8 This is a schematic diagram of the arrangement of the first transmission gear and the second transmission gear in the second embodiment of the utility model;

[0040] Fig. 9 This is a schematic diagram of the structure of the second embodiment of the utility model, which mainly includes a second driving mechanism;

[0041] Fig.10 It is a schematic structural diagram of a first driving mechanism, a second driving mechanism, a first driving member, a second driving member, a photosensitive drum and a developing roller of a second embodiment of the present utility model;

[0042] Fig.11 This is a structural exploded view of a processing cartridge according to a third embodiment of the present utility model;

[0043] Fig.12 It is a structural schematic diagram of a processing box according to a third embodiment of the present utility model;

[0044] Fig.13 This is a schematic structural diagram of the non-driving side end cover of Embodiment 3 of the present utility model. DETAILED DESCRIPTION

[0045] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0046] In this specification, a component being rotationally arranged or rotationally mounted on another component means that the former is arranged on the latter in a manner that it can rotate relative to the latter, and no rotational transmission occurs between the two.

[0047] Embodiment 1

[0048] Figure 1-2 The process box according to the first embodiment of the utility model is schematically shown. The process box includes a photosensitive frame 1, a photosensitive drum 2 rotatably arranged on the photosensitive frame 1, and a driving force receiving unit arranged on the driving side of the photosensitive frame 1 for transmitting the driving force from the photosensitive driving mechanism of the electronic imaging device to the photosensitive drum 2.

[0049] The photosensitive frame 1 includes a photosensitive frame 11, a driving side end cover 12 fixed to the driving side of the photosensitive frame 11, and a non-driving side end cover 13 fixed to the non-driving side of the photosensitive frame 11. Since the three are fixedly connected to each other, they are briefly illustrated as an integrated structure in the figure. Specifically, the photosensitive drum 2 is rotatably set on the photosensitive frame 11, and the driving force receiving unit is set on the driving side of the photosensitive frame 11.

[0050] The driving force receiving unit includes a connecting shaft 71, a connecting rod 72, a reset elastic member 73, a shaft pushing device and a gripping device.

[0051] The connecting shaft 71 is rotatably mounted on the photosensitive frame 1, with its input end extending out of the photosensitive frame 1 to receive the driving force of the photosensitive driving mechanism of the electronic imaging device, and its output end connected to the end of the photosensitive drum 2 to transmit the driving force to the photosensitive drum 2. Figure 3 The output end of the connecting shaft 71 is provided with a movable mounting hole 712, so that the protrusion at the end of the photosensitive drum can be inserted into the movable mounting hole 712, and the connecting shaft 71 can move between an extended position and a retracted position relative to the protrusion at the end of the photosensitive drum in the axial direction. A first annular groove 711 is provided on the circumferential surface of the input end of the connecting shaft 71, and a second annular groove 713 is provided on the circumferential surface of the middle part of the connecting shaft.

[0052] The connecting rod 72 is movably arranged on the photosensitive frame 1, and is used to receive the closing force of the electronic imaging device, and the closing force specifically refers to the force generated when the processing box is installed in the electronic imaging device and then the front door of the electronic imaging device is closed. In this embodiment, the connecting rod 72 is vertically arranged on the photosensitive frame 1, and its first end is used to receive the closing force of the electronic imaging device, and its second end is connected to the first component 741 and pushes the first component 741 to rotate. The elastic reset member can be a spring, which is connected between the connecting rod 72 and the photosensitive frame 1 and is used for resetting the connecting rod 72. When the front door of the electronic imaging device is closed, the connecting rod 72 receives the closing force applied by the electronic imaging device and moves downward. When the front door of the electronic imaging device is opened, the closing force applied to the connecting rod 72 disappears, and the connecting rod 72 moves upward and resets through the action of the elastic reset member.

[0053] The shaft pushing device is used to drive the connecting shaft 71 to move axially according to the force of the connecting rod 72. In this embodiment, the shaft pushing device includes a first component 741, a second component 742 and a shaft pushing elastic member 743. The first component 741 is rotatably sleeved on the connecting shaft 71 and connected to the connecting rod 72, and does not move axially, and is used to convert the up and down movement of the connecting rod 72 into a rotational motion. In this embodiment, the first component 741 is an annular shape, and a first inclined portion 7411 is provided on its end surface. The second component 742 is rotatably sleeved on the second annular groove 713 of the connecting shaft 71, so that the second component 742 can be axially linked with the connecting shaft 71, but not rotationally linked, that is, the second component 742 does not rotate with the connecting shaft 71, but can drive the connecting shaft 71 to move axially, and the second component 742 abuts against the first component 741, and is used to convert the rotational motion of the first component 741 into an axial motion. In this embodiment, the second member 742 is annular, and a second inclined portion 7421 is provided on its end surface, and the second inclined portion 7421 abuts against the first inclined portion 7411, so that when the first member 741 rotates, the first inclined portion 7411 acts on the second inclined portion 7421, thereby pushing the second member 742 to move axially. The first inclined portion 7411 and the second inclined portion 7421 can be straight inclined surfaces, or arc inclined surfaces or other shapes, as long as the rotational motion of the first member 741 can be converted into the axial movement of the second member 742. The shaft-pushing elastic member 743 is arranged between the photosensitive drum 2 and the second member 742, and is used to push the second member 742 to move and reset axially when the axial thrust applied by the first member 741 on the second member 742 disappears. In this embodiment, the shaft-pushing elastic member 743 is a spring, which is sleeved on the output end of the connecting shaft 71, and its two ends abut against the ends of the second member 742 and the photosensitive drum respectively.

[0054] The gripping device is arranged at the input end of the connecting shaft 71, and is used to grip or release the photosensitive driving mechanism of the electronic imaging device according to the axial position of the connecting shaft 71, so that it is engaged or released with the input end of the connecting shaft 71. Figure 2 and 4 In this embodiment, the gripping device includes at least two gripping members 75, which may be two, three or more gripping members 75. The gripping members 75 are evenly distributed along the circumference of the connecting shaft 71, and the gripping members 75 can rotate to approach the central axis of the connecting shaft 71 (see Figure 2 ), thereby grabbing the photosensitive drive mechanism of the electronic imaging device and abutting against the input end of the connecting shaft 71. In this embodiment, two symmetrically distributed grabbing members 75 are provided, which are located just above and just below the connecting shaft 71. Figure 4 , a fixing platform 14 is also provided on the outside of the photosensitive frame 1, a claw fixing rod 15 is provided on the fixing platform 14, and the gripping member 75 is rotatably provided on the claw fixing rod 15. In this embodiment, there are two claw fixing rods 15, which are provided on the vertical plane where the first annular groove 711 of the connecting shaft 71 is located and are arranged at relatively high and low positions in the horizontal direction. In this embodiment, the gripping member 75 includes a claw connecting portion 751 and a claw gripping portion 752, the claw connecting portion 751 is rotatably provided on the claw fixing rod 15, the first end of which is provided in the first annular groove 711, and the second end is connected to the claw gripping portion 752, when the connecting shaft 71 contracts in the axial direction, the claw connecting portion 751 acts on the first annular groove 711 to rotate around the claw fixing rod 15, so as to drive the claw gripping portion 752 to approach the central axis direction of the connecting shaft 71, thereby realizing the gripping action. The claw grasping portion 752 specifically grasps the outer diameter portion of the photosensitive drive mechanism of the electronic imaging device, and the outer diameter portion is stationary. The claw grasping portion 752 can be configured to have an arc-shaped grasping surface that is compatible with the photosensitive drive mechanism of the electronic imaging device to facilitate grasping.

[0055] When the processing box of this embodiment is used, the front door of the electronic imaging device is first opened, the processing box is placed in the electronic imaging device, and the input end of the connecting shaft 71 is aligned with the photosensitive driving mechanism of the electronic imaging device, and then the front door is closed. When the front door is closed, pressure is applied to the connecting rod 72 on the processing box, that is, the closing force, and the connecting rod 72 moves downward, the reset elastic member 73 is stretched, and the connecting rod 72 drives the first component 741 to rotate. The first inclined portion 7411 of the first component 741 pushes the second inclined portion 7421 to generate an axial thrust, so that the second component 742 moves axially. The second component 742 compresses the axial push elastic member 743 and pushes the connecting shaft 71 from the extended position to the retracted position. The input end of the connecting shaft 71 acts on the grasping member 75 through the first annular groove 711, so that the grasping member 75 grasps the photosensitive driving mechanism of the electronic imaging device to the input end of the connecting shaft 71 along the axial direction and tightly abuts and engages with it, and the driving force is input to the photosensitive drum 2 through the connecting shaft 71. When the processing box needs to be replaced, the front door of the electronic imaging device is opened, and the closing force applied by the front door on the connecting rod 72 disappears, and the reset elastic member 73 contracts, causing the connecting rod 72 to move upward and reset. The connecting rod 72 drives the first component 741 to rotate and reset, and the axial thrust of the first inclined portion 7411 of the first component 741 on the second inclined portion 7421 disappears. The second component 742 moves axially and resets due to the action of the axial push elastic member 743, so that the connecting shaft 71 returns to the extended position, and the first annular groove 711 extends to reset the clutch 75, release the photosensitive drive mechanism of the electronic imaging device, release it from the input end of the connecting shaft 71, and stop the input of driving force.

[0056] The processing box of this embodiment, by providing a connecting shaft 71, a connecting rod 72, a shaft pushing device and a gripping device, makes the driving connection between the photosensitive drum 2 and the photosensitive driving mechanism of the electronic imaging device stable and the driving transmission smooth, thereby enhancing the use quality of the processing box.

[0057] Embodiment 2

[0058] Figure 5-6 The processing box according to the second embodiment of the utility model is schematically shown. The processing box includes a photosensitive frame 1, a photosensitive drum 2 rotatably arranged on the photosensitive frame 1, a first driving member 3 rotatably sleeved on the photosensitive drum 2 and used to receive the driving force of the photosensitive driving mechanism of the electronic imaging device, a developing frame 4, a developing roller 5 rotatably arranged on the developing frame 4, a second driving member 6 rotatably arranged on the developing frame 4 and used to receive the driving force of the developing driving mechanism of the electronic imaging device, a first driving mechanism and a second driving mechanism.

[0059] The photosensitive frame 1 includes a photosensitive frame 11, a driving side end cover 12 fixed to the driving side of the photosensitive frame 11, and a non-driving side end cover 13 fixed to the non-driving side of the photosensitive frame 11, the photosensitive drum 2 is rotatably set on the photosensitive frame 11, and the driving force receiving unit is set on the driving side of the photosensitive frame 11.

[0060] The developing frame 4 includes a developing frame 41, a driving side developing support 42 fixed to the driving side of the developing frame 41, a non-driving side developing support 43 fixed to the non-driving side of the developing frame 41, and a developing protective cover 44 fixed to the outside of the driving side developing support 42. The second driving member 6 is arranged on the driving side developing support 42. The driving side end cover 12 is covered on the outside of the developing protective cover 44, and the non-driving side end cover 13 is covered on the outside of the non-driving side developing support 43.

[0061] The photosensitive frame 1 and the developing frame 4 are connected by a spring or other non-fixed means, so that the developing frame can rotate within a certain range relative to the photosensitive frame 1. Specifically, the developing frame 4 is configured to rotate between a contact position and a separation position relative to the photosensitive frame 1 with the rotation axis of the second driving member 6 as the center, so that the photosensitive drum 2 and the developing roller 5 are in contact with or separated from each other.

[0062] See also Figure 7 The first driving mechanism includes a first driving gear 811, a first transmission gear 812, a second transmission gear 813 and a developing gear 814.

[0063] The first driving gear 811 is fixedly sleeved on the first driving member 3, and the first transmission gear 812 is meshed with the first driving gear 811. The first driving member 3, the first driving gear 811 and the first transmission gear 812 are all rotatably arranged on the photosensitive frame 1, preferably, they are arranged on the photosensitive frame 11.

[0064] The developing gear 814 is fixedly sleeved on the developing roller 5 and is used to drive the developing roller 5 to rotate. The second transmission gear 813 is engaged with the developing gear 814. The second driving member 6, the developing gear 814 and the second transmission gear 813 are rotatably arranged on the developing frame 4, preferably, arranged on the driving side developing bracket 42.

[0065] The first transmission gear 812 and the second transmission gear 813 are arranged such that when the second transmission gear 813 rotates between the contact position and the separation position along with the developing frame 4, and thus moves between the first meshing position and the second meshing position, the first transmission gear 812 and the second transmission gear 813 remain meshed in the first meshing position, the second meshing position, and in the process of moving between the first meshing position and the second meshing position, thereby maintaining transmission. Figure 8Point A represents the center of the first transmission gear 812, point B1 represents the center of the second transmission gear 813 at the first meshing position, which corresponds to the developing frame 4 being in the abutting position, and the photosensitive drum 2 and the developing roller 5 are in contact, point B2 represents the center of the second transmission gear 813 at the second meshing position, which corresponds to the developing frame 4 being in the separation position, and the photosensitive drum 2 and the developing roller 5 are separated, and point C represents the center of the second driving member 6, which is also the rotation center of the developing frame 4. The distance between point A and point B1 is the center distance between the first transmission gear 812 and the second transmission gear 813, and the distance between point A and point B2 is also the center distance between the first transmission gear 812 and the second transmission gear 813, and the two are equal. At the same time, the distance between point B1 and point C is the center distance between the second transmission gear 813 and the second driving member 6, and the distance between point B2 and point C is also the center distance between the second transmission gear 813 and the second driving member 6, and the two are equal. It can be seen that there are two positions, B1 and B2, so that the second transmission gear 813 can rotate with the developing frame 4 with point C as the center, and can also stably engage with the first transmission gear 812 to form a stable transmission relationship. When the second transmission gear 813 moves between positions B1 and B2, it can still engage and transmit with the first transmission gear 812. During the movement, the two will have a slight bump, but due to the small moving distance, the impact of this bump on the transmission can be allowed.

[0066] Since the first driving member 3 is rotatably arranged on the photosensitive drum 2, there is no transmission relationship between it and the photosensitive drum 2. When it receives the driving force of the photosensitive driving mechanism of the electronic imaging device, the driving force will not be transmitted to the photosensitive drum 2, but will be transmitted to the first driving gear 811 fixedly mounted on the first driving member 3. Therefore, the driving force is transmitted to the first driving member 3, the first driving gear 811, the first transmission gear 812, the second transmission gear 813, the developing gear 814 and the developing roller 5 in sequence, so that the driving force from the photosensitive driving mechanism of the electronic imaging device is used to drive the developing roller 5 to rotate.

[0067] When the developing frame 4 rotates between the abutment position and the separation position with the second driving member 6 as the center, the second transmission gear 813 and the developing gear 814 rotate accordingly. However, due to the reasons explained above, the second transmission gear 813 is configured to maintain engagement and transmission with the first transmission gear 812 at these two positions and during the rotation process between the two positions. Therefore, when the photosensitive drum 2 is in contact with the developing roller 5, when the photosensitive drum 2 is separated from the developing roller 5, and when the developing roller 5 moves between the abutment position and the separation position, the transmission of driving force is maintained among the first driving member 3, the first driving gear 811, the first transmission gear 812, the second transmission gear 813, the developing gear 814 and the developing roller 5, so that the developing roller 5 remains in a rotating state.

[0068] See also Figure 9-10 The second driving mechanism includes a second driving gear 821, a third transmission gear 822 and a photosensitive gear 823. The photosensitive gear 823 is fixedly sleeved on the photosensitive drum 2 and is used to drive the photosensitive drum 2 to rotate. The photosensitive gear 823 and the first driving gear 811 are respectively located at different axial positions on the photosensitive drum 2, and the movement between the two will not cause interference. The second driving gear 821 is fixedly sleeved on the second driving member 6, and the third transmission gear 822 is rotatably arranged on the developing roller 5. There is no transmission relationship between the second driving gear 821 and the developing roller 5. The third transmission gear 822 and the developing gear 814 are respectively located at different axial positions on the developing roller 5, and the movement between the two will not cause interference. The third transmission gear 822 meshes with the second driving gear 821, and when the developing frame 41 is in the abutting position, the third transmission gear 822 meshes with the photosensitive gear 823. The photosensitive gear 823 is arranged on the photosensitive frame 1, preferably, on the photosensitive frame 11. The third transmission gear 822 and the second driving gear 821 are arranged on the developing frame 4, preferably, on the driving side developing bracket 42.

[0069] When the developing frame 4 rotates to the contact position, that is, the photosensitive drum 2 contacts the developing roller 5, when the second driving member 6 receives the driving force of the developing driving mechanism of the electronic imaging device, the driving force is sequentially transmitted between the second driving gear 821, the third transmission gear 822, the photosensitive gear 823, and the photosensitive drum 2, and the driving force from the developing driving mechanism of the electronic imaging device is transmitted to the photosensitive drum 2 to drive the photosensitive drum 2 to rotate. When the developing frame 4 rotates to the separation position, that is, the photosensitive drum 2 is separated from the developing roller 5, the third transmission gear 822 is separated from the photosensitive gear 823, and the photosensitive drum 2 no longer receives the driving force transmitted from the second driving gear 821.

[0070] The processing box of this embodiment, through the arrangement of the first driving mechanism and the second driving mechanism, the photosensitive drum 2 is driven by the developing driving mechanism of the electronic imaging device, and the developing roller 5 is driven by the photosensitive driving mechanism of the electronic imaging device, providing another driving method different from the prior art, which can ensure the stable transmission of driving force and ensure the effective operation of the processing box.

[0071] Embodiment 3

[0072] Figure 11-12 The process box according to the third embodiment of the present utility model is schematically shown. The process box comprises a photosensitive frame 1, a photosensitive drum 2 rotatably arranged on the photosensitive frame 1, a first driving member 3 fixedly sleeved on the photosensitive drum 2 and used to receive the driving force of the photosensitive driving mechanism of the electronic imaging device, and an elastic device 9.

[0073] The photosensitive frame 1 includes a photosensitive frame 11 , a driving side end cover 12 fixed to the driving side of the photosensitive frame 11 , and a non-driving side end cover 13 fixed to the non-driving side of the photosensitive frame 11 , and the photosensitive drum 2 is rotatably arranged on the photosensitive frame 11 .

[0074] The photosensitive drum 2 in this embodiment is also configured to be able to move axially relative to the photosensitive frame 1. The elastic device 9 is disposed between the photosensitive frame 1 and the photosensitive drum 2 to enable the photosensitive drum 2 to be reset axially. Fig.12 In the present embodiment, preferably, the elastic device 9 is a spring, which is arranged between the non-driving side end cover 13 and the non-driving end of the photosensitive drum 2. In other embodiments, it can also be arranged between the driving side end cover 12 and the driving end of the photosensitive drum 2, as long as the axial resetting of the photosensitive drum 2 can be achieved.

[0075] See also Fig.13 The non-driving side end cover 13 is also provided with an avoidance groove 131 for accommodating the non-driving end of the photosensitive drum 2 moving axially toward the non-driving side end cover 13 .

[0076] When the processing box is installed on the electronic imaging device, the photosensitive drive mechanism of the electronic imaging device engages with the first drive member 3 of the processing box. During the engagement process, the photosensitive drive mechanism of the electronic imaging device applies a certain force to the first drive member 3 of the processing box, and the photosensitive drum 2 moves axially toward the non-driving side to avoid the photosensitive drive mechanism of the electronic imaging device. The elastic device 9 is compressed. When the first drive member 3 of the processing box and the photosensitive drive mechanism of the electronic imaging device are turned to the corresponding engagement positions, due to the action of the elastic device 9, the first drive member 3 of the processing box moves axially toward the driving side and resets, and is tightly engaged with the photosensitive drive mechanism of the electronic imaging device to stably receive the driving force, thereby solving the problem in the prior art that when the first drive member 3 of the processing box and the photosensitive drive mechanism of the electronic imaging device are engaged, due to the complex structures of the two, they contact and press each other in a rigid manner, which may cause mutual interference, jamming or failure to engage.

[0077] The above are only some embodiments of the present invention. For those skilled in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, or the above technical solutions can be freely combined, including the technical features between the above different embodiments, which all belong to the protection scope of the present invention.

Claims

1. A process cartridge, detachably mounted on an electronic imaging device, comprising: Photosensitive frame; A photosensitive drum is rotatably arranged on the photosensitive frame; The first driving mechanism comprises a first driving member, which is rotatably sleeved on the photosensitive drum and is used to receive the driving force of the photosensitive driving mechanism of the electronic imaging device; Development frame; A developing roller rotatably disposed on the developing frame; The second driving mechanism includes a second driving member, which is rotatably sleeved on the developing frame and is used to receive the driving force of the developing driving mechanism of the electronic imaging device; It is characterized in that the first driving mechanism uses the driving force from the photosensitive driving mechanism to drive the developing roller to rotate, and the second driving mechanism uses the driving force from the developing driving mechanism to drive the photosensitive drum to rotate.

2. The process cartridge according to claim 1, wherein: The first driving mechanism further includes a first driving gear, a first transmission gear, a second transmission gear and a developing gear.

3. The process cartridge according to claim 2, wherein: The first driving gear is fixedly sleeved on the first driving member.

4. The process cartridge according to claim 2, wherein: The first transmission gear is rotatably disposed on the photosensitive frame and meshes with the first driving gear.

5. The process cartridge according to claim 1, wherein: The second driving mechanism also includes a second driving gear, a third transmission gear and a photosensitive gear.

6. The process cartridge according to claim 5, wherein: The second driving gear is fixedly sleeved on the second driving member.

7. The process cartridge according to claim 5, wherein: The third transmission gear is rotatably disposed on the developing roller and is meshed with the second driving gear.

8. The process cartridge according to claim 5, wherein: The photosensitive gear is fixedly sleeved on the photosensitive drum.

9. The process cartridge according to claim 5, wherein: The third transmission gear and the photosensitive gear are arranged so that when the developing frame is in the abutting position, the two are meshed, thereby transmitting the driving force of the developing drive mechanism of the electronic imaging device to the photosensitive drum via the second driving gear, the third transmission gear and the photosensitive gear in sequence.

10. The process cartridge according to claim 1, wherein: The developing roller is rotatably arranged in a developing frame, and the developing frame is arranged to be rotatable between a contact position and a separation position relative to the photosensitive frame, so that the photosensitive drum and the developing roller are in contact with or separated from each other.

11. The process cartridge according to claim 2, wherein: The first transmission gear and the second transmission gear are configured such that when the second transmission gear rotates with the developing frame between the abutting position and the separating position, the second transmission gear moves between the first meshing position and the second meshing position.

12. The process cartridge according to claim 2, wherein: The first transmission gear and the second transmission gear remain engaged regardless of being in the first engagement position, the second engagement position, and during the movement, thereby transmitting the driving force of the photosensitive driving mechanism of the electronic imaging device to the developing roller via the first driving gear, the first transmission gear, the second transmission gear, and the developing gear in sequence.

13. A processing box, detachably mounted on an electronic imaging device, characterized in that: include: Photosensitive frame; A photosensitive drum rotatably disposed on the photosensitive frame and capable of axially moving relative to the photosensitive frame; The elastic device is arranged between the photosensitive frame and the photosensitive drum and is used for realizing axial resetting of the photosensitive drum.

14. The process cartridge according to claim 13, wherein: The photosensitive frame includes a non-driving side end cover arranged on the non-driving side thereof, and the elastic device is a spring, which is arranged between the non-driving side end cover and the non-driving end of the photosensitive drum.

15. The process cartridge according to claim 14, wherein: The non-driving side end cover is provided with an avoidance groove, which is used to accommodate the non-driving end of the photosensitive drum moving axially toward the non-driving side end cover.

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