Processing box

Abstract

The utility model relates to the technical field of image formation, in particular to a processing box. The processing box comprises a photosensitive unit, a developing unit and a first driving force receiving unit, wherein the first driving force receiving unit is used for receiving a first driving force from a printer to drive a developing roller in the developing unit to rotate; the first driving force receiving unit comprises a meshing component and a linkage component, the meshing component is used for being meshed with a first driving head in the printer to receive first driving force from the printer, and the linkage component is used for controlling the meshing component; and when the processing box receives a second driving force applied by the printer, the linkage component drives the movable part of the meshing component to move and finally enables the first driving force receiving unit to be in a retraction state. The processing box is beneficial to improving the working efficiency of the processing box in the printer, reducing the aging of the meshing component in the processing box and the first driving head in the printer, and prolonging the service life of the processing box and the printer.

Description

Technical Field

[0001] The utility model relates to the technical field of image formation, in particular to a processing box. Background Art

[0002] Printers are common modern office equipment, and processing cartridges are common printer consumables.

[0003] In some existing processing boxes, such as the patent with publication number CN111650824B, Figure 31 As shown, the first drive input component 674b can be exposed to the outside of the processing box or moved to the inside of the processing box according to the different positions of the rod 73, thereby coupling or decoupling the first drive input component 674b with the developing drive output component 62 in the printer, thereby prompting the processing box to realize normal printing work or stop normal printing work in the printer.

[0004] However, the first drive input component 674b used to couple with the developer drive output component 62 in the printer moves toward the inside of the processing box according to the position of the rod when the processing box stops normal printing. Since it moves toward the inside of the processing box as a whole, its connection relationship with the developer drive output component 62 in the printer changes from coupling to complete non-contact. Since the change in this connection relationship is sudden, the first drive input component 674b is easily stuck with the developer drive output component 62 in the printer during this process, affecting the working efficiency of the processing box in the printer, and at the same time easily accelerating the aging of the first drive input component 674b in the processing box and the developer drive output component 62 in the printer, affecting the life of the processing box and the printer. Utility Model Content

[0005] The utility model provides a processing box, which can solve the above-mentioned problems existing in the existing processing boxes.

[0006] The processing box provided by the utility model includes a photosensitive unit, a developing unit and a first driving force receiving unit, the first driving force receiving unit is used to receive a first driving force from the printer to drive the developing roller in the developing unit to rotate; the first driving force receiving unit includes an engaging member and a linkage member, the engaging member is used to engage with the first driving head in the printer to receive the first driving force from the printer, and the linkage member is used to control the engaging member; when the processing box receives the second driving force applied by the printer, the linkage member drives the movable part of the engaging member to move and finally puts the first driving force receiving unit into a retracted state.

[0007] Therefore, in the processing box provided by the present invention, the engaging member for engaging with the first drive head in the printer to receive the first driving force is not fully retracted so that it is completely out of contact with the first drive head in the printer during the process of disengagement from the first drive head in the printer, but is partially retracted, and it still remains partially in contact with the first drive head in the printer, thereby providing a buffer for the process of disengagement between the engaging member and the first drive head in the printer, so that in this process, the engaging member and the first drive head in the printer are not easily stuck, which is beneficial to improving the working efficiency of the processing box in the printer, reducing the aging of the engaging member in the processing box and the first drive head in the printer, and increasing the life of the processing box and the printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 Schematic diagram of the overall structure of the process cartridge provided in the first embodiment of the present utility model (I);

[0009] Figure 2 An exploded view of the structure of the process cartridge provided in the first embodiment of the present invention (I);

[0010] Figure 3 This is a structural schematic diagram of the first driving force receiving unit in an engaged state when the process cartridge provided by the first embodiment of the present utility model is mated with the printer;

[0011] Figure 4 This is a structural schematic diagram of the first driving force receiving unit in a retracted state when the process cartridge provided by the first embodiment of the present utility model is mated with the printer;

[0012] Figure 5 Schematic diagram of the overall structure of the process cartridge provided in the first embodiment of the present utility model (II);

[0013] Figure 6 A schematic diagram of the structure of the process cartridge and the printer provided in the first embodiment of the present utility model (I);

[0014] Figure 7 Schematic diagram (2) of the structure of the process cartridge and the printer provided in the first embodiment of the present utility model;

[0015] Figure 8 Schematic diagram of the structure of the process cartridge and the printer provided in the first embodiment of the present utility model (3);

[0016] Figure 9 Schematic diagram (four) of the structure of the process cartridge and the printer provided in the first embodiment of the present utility model;

[0017] Figure 10 A schematic structural diagram of a second driving force receiving unit in a process cartridge provided by a first embodiment of the present utility model;

[0018] Figure 11 Exploded view of the structure of the process cartridge provided in the first embodiment of the present utility model (II);

[0019] Figure 12 for Figure 11 A partial enlarged view of the middle W;

[0020] Figure 13 A schematic structural diagram of a side cover of a processing cartridge provided in a first embodiment of the present utility model;

[0021] Figure 14 A schematic diagram of the overall structure of a processing cartridge provided in a second embodiment of the present utility model;

[0022] Figure 15 An exploded view of the structure of the process cartridge provided in the second embodiment of the present invention (I);

[0023] Figure 16 A schematic structural diagram of a first driving force receiving unit in an engaged state when the process cartridge provided by the second embodiment of the present utility model is mated with the printer;

[0024] Figure 17 This is a structural schematic diagram of the first driving force receiving unit in a retracted state when the process cartridge provided by the second embodiment of the present utility model is mated with the printer;

[0025] Figure 18 Exploded view (2) of the structure of the process cartridge provided in the second embodiment of the present invention;

[0026] Figure 19 for Figure 18 A partial enlarged view of the middle U;

[0027] Figure 20 A schematic diagram of the overall structure of a processing cartridge provided in a third embodiment of the present invention;

[0028] Figure 21 An exploded view of the structure of the process cartridge provided in the third embodiment of the present invention (I);

[0029] Figure 22 A schematic structural diagram of a process cartridge according to a third embodiment of the present invention and a first driving force receiving unit in an engaged state when the process cartridge is mated with a printer;

[0030] Figure 23 A schematic structural diagram of a process cartridge according to a third embodiment of the present invention in which the first driving force receiving unit is in a retracted state when the process cartridge is mated with the printer;

[0031] Figure 24 A schematic diagram of the structure of the process cartridge and the printer provided in the third embodiment of the present utility model (I);

[0032] Figure 25 Schematic diagram (2) of the structure of the process cartridge and the printer provided in the third embodiment of the present utility model;

[0033] Figure 26 Exploded view (2) of the structure of the process cartridge provided in the third embodiment of the present invention;

[0034] Figure 27 for Figure 26 A partial enlarged view of the middle V;

[0035] Figure 28 A schematic structural diagram of a linkage portion of a linkage member in a process cartridge provided in a third embodiment of the present utility model;

[0036] Figure 29 A schematic structural diagram of a transmission component in a process cartridge provided in a third embodiment of the present utility model;

[0037] Figure 30 A schematic structural diagram of a side cover in a processing cartridge provided in a third embodiment of the present utility model;

[0038] Figure 31 It is a structural schematic diagram of an existing processing box. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present invention have the same meaning as commonly understood by those skilled in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined in this manner in the embodiments of the present invention.

[0041] The terms "center", "up", "down", "left", "right", "vertical", "horizontal", etc. used in the embodiments of the present invention to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of this embodiment are usually placed when in use. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the embodiments of the present invention.

[0042] The terms "first," "second," and similar expressions used in the embodiments of the present invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "a," "an," or "the" do not indicate a limit on quantity, but rather indicate the presence of at least one. Similarly, terms such as "include," "comprise," and "comprising" mean that the element or object preceding the term encompasses the elements or objects listed after the term, and their equivalents, without excluding other elements or objects.

[0043] See also Figure 1-Figure 30 , Figure 1-Figure 30 This is a schematic diagram of the structure of the processing box and its cooperation with the printer according to different embodiments of the present invention.

[0044] The present invention provides a process cartridge 100 , which is applied to a printer 200 . The printer 200 includes a first drive head (not shown) and a second drive head 202 .

[0045] like Figure 1-Figure 30 As shown, Figure 1 This is a schematic diagram of the overall structure of the processing box provided by the first embodiment of the utility model from one angle. Figure 5 This is a schematic diagram of the overall structure of the process cartridge provided by the first embodiment of the present invention from another angle. In the embodiment provided by the present invention, the process cartridge 100 includes a photosensitive unit 1 and a developing unit 2, wherein the photosensitive unit 1 includes a photosensitive drum 11, and the developing unit 2 includes a developing roller 21, and the extending direction of the developing roller 21 is parallel to the extending direction of the photosensitive drum 11.

[0046] It should be noted that the structures of the developing roller 21 and the photosensitive drum 11 in the second and third embodiments of the present invention and the positional relationship therebetween are similar to those in the drawings. Figure 5 Similar to Figure 5 shown.

[0047] It should be noted that in the description of this application, Figure 1-Figure 30As shown, the second direction Y is parallel to the extension direction of the developing roller 21, the third direction Z is a direction perpendicular to the horizontal plane in the process box 100 when the process box 100 is normally placed on a horizontal plane or is normally placed in the printer 200 located on a horizontal plane, the first direction X is perpendicular to the second direction Y and the third direction Z, respectively, and the first direction X, the second direction Y, and the third direction Z are respectively perpendicular.

[0048] Please refer to Figure 3-Figure 4 、 Figure 16-17 and Figure 22-23 , which is a structural schematic diagram of the first driving force receiving unit being in an engaged state or a retracted state when the processing box is matched with the printer in different embodiments provided by the present invention.

[0049] In the embodiment provided by the present invention, when the process cartridge 100 is placed in the printer 200 and normal printing operation begins, the photosensitive drum 11 and the developing roller 21 both rotate, and the photosensitive drum 11 and the developing roller 21 are in contact. As the photosensitive drum 11 rotates, a laser beam emitted by a laser scanner in the printer 200 forms an electrostatic latent image on the outer peripheral surface of the photosensitive drum 11. The developing roller 21 then develops the electrostatic latent image into a toner image (developer image) using toner powder attached to the developing roller 21 to facilitate the subsequent printing steps. In other embodiments, the photosensitive drum 11 and the developing roller 21 may not be in contact, but may be separated by a very small distance, which enables the developing roller 21 to develop the electrostatic latent image formed on the photosensitive drum 11 into a developer image.

[0050] Then, when the printer 200 pauses printing, the photosensitive drum 11 keeps rotating, the developing roller 21 stops rotating, and the photosensitive drum 11 is separated from the developing roller 21. That is, the photosensitive drum 11 and the developing roller 21 are not in contact with each other, nor are they separated by a very small distance, but by a relatively large distance. This makes it easier to complete the cleaning of the photosensitive drum 11 when it rotates, and does not affect the colorant powder attached to the developing roller 21. At the same time, it can also reduce the wear between the developing roller 21 and the photosensitive drum 11, which is beneficial to improving the printing quality of the printer 200.

[0051] like Figure 1-Figure 30 As shown, the process cartridge 100 further includes a first driving force receiving unit 3 and a second driving force receiving unit 4. The first driving force receiving unit 3 is connected to the developing roller 21 in the developing unit 2 and is configured to receive a first driving force from a first driving head in the printer 200. The first driving force can drive the developing roller 21 to rotate. The second driving force receiving unit 4 is configured to receive a second driving force from a second driving head 202 in the printer 200. The second driving force can cause the photosensitive unit 1 to separate from the developing unit 2, that is, the second driving force can cause the photosensitive drum 11 to separate from the developing roller 21. The second driving force receiving unit 4 can also be used to control the first driving force receiving unit 3.

[0052] The printer 200 also includes a third drive head (not shown), which is used to rotate the photosensitive drum 11 of the photosensitive unit 1 in the process cartridge 100. When the process cartridge 100 is placed in the printer 200 and normal printing begins, the first drive head engages with the first driving force receiving unit 3. The mechanism in the printer 200 for controlling the first drive head controls the rotation of the first drive head, thereby controlling the first driving force receiving unit 3, which in turn drives the development roller 21 to rotate. Simultaneously, the mechanism in the printer 200 for controlling the third drive head controls the rotation of the third drive head, which in turn drives the rotation of the photosensitive drum 11. At this time, the photosensitive drum 11 and the development roller 21 are in contact or separated by a very small distance.

[0053] Then, when the printer 200 pauses printing, the mechanism for controlling the first drive head in the printer 200 still controls the rotation of the first drive head, the mechanism for controlling the third drive head in the printer 200 still controls the rotation of the third drive head, and the mechanism for controlling the second drive head 202 in the printer 200 controls the second drive head 202 to apply a second driving force to the second driving force receiving unit 4 in the process cartridge 100, so that the second driving force receiving unit 4 moves after receiving the second driving force, thereby causing the photosensitive unit 1 and the developing unit 2 to separate, that is, causing the photosensitive drum 11 and the developing roller 21 to separate; and at the same time, the second driving force receiving unit 4 moves after receiving the second driving force, also causing the first driving force receiving unit 3 to change from the engaged state to the retracted state, so that even if the mechanism for controlling the first drive head in the printer 200 still controls the rotation of the first drive head, the rotation of the first drive head does not drive the rotation of the developing roller 21, so that at this time the developing roller 21 pauses and the photosensitive drum 11 keeps rotating. The engaged state is a state in which the first driving force receiving unit 3 can engage with the first driving head in the printer 200 , and the retracted state is a state in which the first driving force receiving unit 3 cannot engage with the first driving head in the printer 200 .

[0054] [Second driving force receiving unit]

[0055] like Figure 1-Figure 30 As shown, especially Figure 2 、 Figure 15 、 Figure 21 As shown, in some embodiments, the second driving force receiving unit 4 is connected to the first driving force receiving unit 3 and the developing unit 2, and the second driving force receiving unit 4 is used to receive the second driving force to control the first driving force receiving unit 3 and cause the developing unit 2 to be in a separated state, wherein the developing unit 2 is in a separated state means that the developing unit 2 is in a state where its developing roller 21 is separated from the photosensitive drum 11 in the photosensitive drum 11 unit.

[0056] Therefore, after receiving the second driving force, the second driving force receiving unit 4 can control the first driving force receiving unit 3 to control the developing roller 21 to stop rotating, and at the same time can cause the photosensitive unit 1 and the developing unit 2 to be in a separated state, thereby facilitating the cleaning of the photosensitive drum 11 when it rotates, without affecting the colorant powder attached to the developing roller 21, and at the same time reducing the wear between the developing roller 21 and the photosensitive drum 11.

[0057] In some embodiments, the second driving force receiving unit 4 is connected to the first driving force receiving unit 3, which includes: the second driving force receiving unit 4 is movably connected to the first driving force receiving unit 3 or fixedly connected to the first driving force receiving unit 3, for example, Figure 20-Figure 30 In the embodiment shown, the second driving force receiving unit 4 is fixedly connected to the first driving force receiving unit 3. Furthermore, the second driving force receiving unit 4 and the first driving force receiving unit 3 are integrally formed. In other embodiments, the connection between the second driving force receiving unit 4 and the first driving force receiving unit 3 includes: the second driving force receiving unit 4 is not in contact with the first driving force receiving unit 3, and when the second driving force receiving unit 4 receives the second driving force from the printer 200, it moves and then contacts the first driving force receiving unit 3, thereby controlling the first driving force receiving unit 3. In still other embodiments, Figures 1-19 As shown, the connection between the second driving force receiving unit 4 and the first driving force receiving unit 3 may further include: the second driving force receiving unit 4 abuts the first driving force receiving unit 3, and when the second driving force receiving unit 4 receives the second driving force from the printer 200, it moves, thereby driving the first driving force receiving unit 3, and further controlling the first driving force receiving unit 3. It should be noted that in the first and second embodiments provided by the present utility model, the connection method between the second driving force receiving unit 4 and the first driving force receiving unit 3 is the same.

[0058] Similarly, in some embodiments, the connection between the second driving force receiving unit 4 and the developing unit 2 includes: the second driving force receiving unit 4 and the developing unit 2 are movably connected or fixed. In other embodiments, the connection between the second driving force receiving unit 4 and the developing unit 2 includes: the second driving force receiving unit 4 and the developing unit 2 are not in contact, and when the second driving force receiving unit 4 receives the second driving force from the printer 200, the second driving force receiving unit 4 moves, thereby contacting the developing unit 2, and then controlling the developing unit 2, causing the developing unit 2 to be in a separated state. In still other embodiments, the connection between the second driving force receiving unit 4 and the developing unit 2 may further include: the second driving force receiving unit 4 abuts the developing unit 2, and when the second driving force receiving unit 4 receives the second driving force from the printer 200, the second driving force receiving unit 4 moves, thereby driving the developing unit 2, and then controlling the developing unit 2, causing the developing unit 2 to be in a separated state.

[0059] In some embodiments, as Figure 10-12 、 Figure 18-19 As shown, the second driving force receiving unit 4 includes a force receiving portion 41 and a force transmitting portion 42. The force receiving portion 41 is used to receive the second driving force, and the force transmitting portion 42 is used to transmit the second driving force to the first driving force receiving unit 3 and the developing unit 2, thereby controlling the first driving force receiving unit 3 and causing the developing unit 2 to be in a separated state. The force receiving portion 41 is connected to the force transmitting portion 42. In some embodiments, the force receiving portion 41 is fixedly connected to the force transmitting portion 42. Furthermore, in some embodiments, the force receiving portion 41 and the force transmitting portion 42 are integrally formed, such as Figure 10 In other embodiments, the force receiving portion 41 is movably connected to the force transmitting portion 42. It should be noted that in the embodiments provided by the present invention, the second driving force receiving unit 4 of the process cartridge in the first embodiment and the second embodiment has the same structure, and the specific descriptions can be referred to each other.

[0060] Furthermore, in some embodiments, the force transmission portion 42 includes a first force transmission portion 421 and a second force transmission portion 422. The first force transmission portion 421 is connected to the first driving force receiving unit 3, and the second force transmission portion 422 is connected to the developing unit 2. The first force transmission portion 421 is used to transmit the second driving force to the first driving force receiving unit 3 to control the first driving force receiving unit 3, and the second force transmission portion 422 is used to transmit the second driving force to the developing unit 2 to cause the developing unit 2 to be in a separated state. Wherein, the first force transmission portion 421 and the second force transmission portion 422 are both connected to the force receiving portion 41. In some embodiments, the connection between the first force transmission portion 421 and the force receiving portion 41 includes: the first force transmission portion 421 is fixedly connected to the force receiving portion 41. Further, in some embodiments, as Figure 10 As shown, the first force transmitting portion 421 and the force receiving portion 41 are integrally formed. In other embodiments, the connection between the first force transmitting portion 421 and the force receiving portion 41 may further include: the first force transmitting portion 421 and the force receiving portion 41 are movably connected. Similarly, the connection between the second force transmitting portion 422 and the force receiving portion 41 may refer to the connection between the first force transmitting portion 421 and the force receiving portion 41.

[0061] In some embodiments, the connection between the first force transmission part 421 and the first driving force receiving unit 3 includes: the first force transmission part 421 and the first driving force receiving unit 3 are movably connected or fixedly connected. Figures 1-19As shown, the connection between the first force transmitting portion 421 and the first driving force receiving unit 3 includes: the first force transmitting portion 421 is not in contact with the first driving force receiving unit 3; when the force receiving portion 41 receives the second driving force from the printer 200, the force receiving portion 41 moves, thereby causing the first force transmitting portion 421 to move, thereby contacting the first driving force receiving unit 3, and thereby controlling the first driving force receiving unit 3. In some further embodiments, the connection between the first force transmitting portion 421 and the first driving force receiving unit 3 may further include: the first force transmitting portion 421 abuts against the first driving force receiving unit 3; when the force receiving portion 41 receives the second driving force from the printer 200, the force receiving portion 41 moves, thereby causing the first force transmitting portion 421 to move, thereby driving the first driving force receiving unit 3, and thereby controlling the first driving force receiving unit 3.

[0062] Similarly, in some embodiments, the connection between the second force transmitting portion 422 and the developing unit 2 includes: the second force transmitting portion 422 and the developing unit 2 are movably connected or fixedly connected. In other embodiments, the connection between the second force transmitting portion 422 and the developing unit 2 includes: the second force transmitting portion 422 is not in contact with the developing unit 2, and when the force receiving portion 41 receives the second driving force from the printer 200, the force receiving portion 41 moves, thereby causing the second force transmitting portion 422 to move, thereby contacting the developing unit 2, and further controlling the developing unit 2, causing the developing unit 2 to be in a separated state. In still other embodiments, the connection between the second force transmitting portion 422 and the developing unit 2 may further include: the second force transmitting portion 422 abuts against the developing unit 2, and when the force receiving portion 41 receives the second driving force from the printer 200, the force receiving portion 41 moves, thereby causing the second force transmitting portion 422 to move, thereby driving the developing unit 2, and further controlling the developing unit 2, causing the developing unit 2 to be in a separated state.

[0063] The force receiving portion 41 includes a force receiving surface 411, and the force receiving surface 411 is used to receive the second driving force. Figure 6-Figure 7 、 Figure 24-25 FIG. 4 shows the movement change process of the second driving force receiving unit 4 and the first driving force receiving unit 3 after the second driving force receiving unit 4 receives the second driving force applied by the second driving head 202 of the printer 200, as shown in FIG. Figure 6 or Figure 24 As shown, the printer 200 is in a working state at this time, the second driving head 202 is located near the second driving force receiving unit 4 but does not apply the second driving force to the second driving force receiving unit 4, and the developing unit 2 is in a contact state, that is, the photosensitive unit 1 and the developing unit 2 are in contact at this time, wherein the developing unit 2 is in a contact state means that the developing unit 2 is in a state where its developing roller 21 is in contact with the photosensitive drum 11 in the photosensitive drum 11 unit.

[0064] It should be noted that during the conversion of the developing unit 2 from the contact state to the separation state, the photosensitive unit 1 remains relatively stationary in the printer 200, while the developing unit 2 moves relatively in the printer 200, thereby realizing the conversion from contact to separation between the developing roller 21 and the photosensitive drum 11.

[0065] When the printer 200 is temporarily suspended, Figure 7 or Figure 25 As shown, the second driving head 202 starts to move along the first direction X, thereby applying the second driving force to the force receiving surface 411 of the force receiving portion 41, and driving the second driving force receiving unit 4 to move, thereby driving the first driving force receiving unit 3 and the developing unit 2, thereby controlling the first driving force receiving unit 3 and causing the developing unit 2 to be in a separated state. In some embodiments, as Figure 7 or Figure 25 As shown, when the force receiving surface 411 of the force receiving portion 41 receives the second driving force, the second driving force receiving unit 4 rotates, thereby driving the first driving force receiving unit 3 and the developing unit 2, thereby controlling the first driving force receiving unit 3 and causing the developing unit 2 to rotate to a separated state.

[0066] like Figure 1-Figure 30 As shown, the force receiving surface 411 is parallel to the third direction Z. Therefore, the force receiving surface 411 is parallel to the third direction Z and is smooth, without any pits or protrusions that would cause resistance during the mating or dismating process between the force receiving portion 41 and the second drive head 202 in the printer 200, thereby making the mating or dismating process between the force receiving portion 41 and the second drive head 202 smoother. Generally speaking, the mating process between the force receiving portion 41 and the second drive head 202 occurs between the time the process cartridge 100 is placed in the printer 200 and the time the printer 200 is operating normally or suspending operation, and the dismating process between the force receiving portion 41 and the second drive head 202 occurs between the time the printer 200 is powered off and the time the process cartridge 100 is removed from the printer 200. The third direction Z is the direction perpendicular to the horizontal plane when the process cartridge 100 is placed on the horizontal plane.

[0067] It should be noted that the printer 200 further includes a second elastic member (not shown), which is connected to the second drive head 202. When the second drive head 202 is subjected to a pushing force, the second drive head 202 rotates counterclockwise around point c; and when the pushing force applied to the second drive head 202 is removed, the second elastic member drives the second drive head 202 to return to its original position, wherein the original position is the position of the second drive head 202 in the printer 200 when there is no pushing force, as shown in FIG. Figure 6-Figure 7 、 Figure 24-25It should be noted that the pushing force is a force that can cause the second driving head 202 to rotate counterclockwise around point c.

[0068] When the second drive head 202 is in the Figure 7 or Figure 25 When the printer 200 is in the position shown, if the power is turned off, the second drive head 202 will not return to the position shown in FIG. Figure 6 or Figure 24 position shown, but remain as Figure 7 or Figure 25 Even if the process cartridge 100 is taken out of the printer 200, the printer 200 is powered off and cannot provide any power for the movement of the second drive head 202. Therefore, the second drive head 202 remains in the position shown. Figure 7 or Figure 25 Next, if the process cartridge 100 is placed in the printer 200 again but the printer 200 is not powered on, the relative position between the second drive head 202 and the second driving force receiving unit 4 is as shown. Figure 8 As shown, at this time, the two interfere with each other. In the prior art, the second driving head 202 rotates counterclockwise around the C electric current to avoid the second driving force receiving unit 4. After the printer 200 is powered on and the printer 200 is ready to work normally, the second driving head 202 returns to the first direction X while avoiding the second driving force receiving unit 4. Figure 24 The location shown in .

[0069] In the present utility model Figures 1-19 In the embodiment provided, the following occurs between the second driving head 202 and the second driving force receiving unit 4: Figure 8 After the interference shown, the second driving force receiving unit 4 rotates clockwise to avoid the second driving head 202. Specifically, when the printer 200 is powered on and the printer 200 is ready to work normally, the second driving head 202 returns to the position shown in FIG. Figure 6 In this process, the second driving force receiving unit 4 is pushed by the second driving head 202 as the second driving head 202 moves and moves to the avoidance position, so that the second driving head 202 returns to the position shown in FIG. Figure 6During this process, the second driving force receiving unit 4 moves out of the way as the second driving head 202 moves, and does not generate a pushing force on the second driving head 202 that would cause the second driving head 202 to rotate counterclockwise around point C. This helps reduce the number of times the second driving head 202 rotates counterclockwise around point C due to the pushing force, and reduces the number of times the second elastic member expands and contracts to drive the second driving head 202 to return to its original position. This helps reduce aging and wear of the second elastic member, improves printing quality, reduces the need to replace or repair springs at corresponding positions in the printer, and reduces the difficulty of repairing the printer.

[0070] Specifically, in some embodiments, Figure 10 As shown, the second driving force receiving unit 4 also includes a guide portion 43, which includes a guide surface 431. The guide surface 431 is used to receive the thrust of the second driving head 202, and the second driving force receiving unit 4 moves to the avoidance position under the action of the thrust and the guidance of the guide surface 431.

[0071] In some embodiments, as Figure 10 As shown, the second driving force receiving unit 4 further includes a recovery portion 44, which is used to restore the second driving force receiving unit 4 to its initial position after the second driving force receiving unit 4 is moved to the avoidance position by the thrust of the second driving head 202; wherein the initial position is the position of the second driving force receiving unit 4 in the processing box 100 when no force is applied thereto, and the avoidance position is the position of the second driving force receiving unit 4 in the processing box 100 to which it finally moves after being pushed by the second driving head 202. Figure 6 As shown, the second driving force receiving unit 4 is in the initial position; Figure 9 As shown, the second driving force receiving unit 4 is in the avoidance position.

[0072] Furthermore, in some embodiments, the restoring portion 44 includes an abutting surface 441 and a first elastic member 442, one end of which is connected to the photosensitive unit 1. When the second driving force receiving unit 4 is in the initial position, the other end of the first elastic member 442 is suspended in the air or abuts the abutting surface 441 in the restoring portion 44. At this time, the first elastic member 442 is neither compressed nor stretched. When the second driving force receiving unit 4 moves to the avoidance position, the abutting surface 441 abuts against the first elastic member 442, compressing the first elastic member 442. When the thrust applied to the second driving force receiving unit 4 by the second driving head 202 disappears, the elastic force of the first elastic member 442 forces the second driving force receiving unit 4 to return to the initial position. At this time, the end of the first elastic member 442 that was originally abutting the abutting surface 441 is suspended in the air or continues to abut the abutting surface 441 in the restoring portion 44. However, the first elastic member 442 is no longer compressed nor stretched. The first elastic member 442 is a spring.

[0073] Therefore, the restoring portion 44 is used to cause the second driving force receiving unit 4 to return to its initial position when the second driving force receiving unit 4 is in the avoidance position. Since one end of the first elastic member 442 is connected to the photosensitive unit 1 and the other end is suspended in the air or abuts the abutting surface 441 of the restoring portion 44, when the second driving force receiving unit 4 is rotated counterclockwise by the second driving force, the end of the first elastic member 442 connected to the photosensitive unit 1 remains connected to the photosensitive unit 1, while the end of the first elastic member 442 abutting the abutting surface 441 of the restoring portion 44 is suspended in the air. Therefore, when the second driving force disappears, the first elastic member 442 of the restoring portion 44 will not have the elastic force to cause the second driving force receiving unit 4 to return to its initial position.

[0074] Among them, the elastic coefficient of the first elastic member 442 is not greater than the elastic coefficient of the second elastic member, so that when the second driving force receiving unit 4 moves to the avoidance position, the force from the first elastic member 442 and applied to the second driving head 202 is not sufficient to cause the second driving head 202 to rotate counterclockwise around point c as mentioned above.

[0075] In some embodiments, the second driving force receiving unit 4 is rotatable as a whole, that is, at least a portion of the second driving force receiving unit 4 is rotatable, so the second driving force receiving unit 4 moves to the avoidance position when the second driving force receiving unit 4 rotates to the avoidance position. When the second driving force receiving unit 4 rotates as a whole, the force receiving portion 41 and the force transmitting portion 42 rotate together. Therefore, when the second driving force receiving unit 4 receives the second driving force, as shown in FIG. Figure 6-7As shown, when viewed along the second direction Y, the second driving force receiving unit 4 rotates counterclockwise as a whole, that is, the force receiving portion 41 and the force transmitting portion 42 rotate counterclockwise together. When the second driving force is eliminated, the second driving force receiving unit 4 rotates clockwise as a whole back to the direction shown in FIG. Figure 6 The position shown in FIG. 1 is that the force receiving portion 41 and the force transmitting portion 42 rotate together clockwise back to the position shown in FIG. Figure 6 The location shown

[0076] Specifically, in some embodiments, Figure 6-7 As shown, when the second driving force receiving unit 4 receives the second driving force, when viewed along the second direction Y, the second driving force receiving unit 4 rotates counterclockwise as a whole, that is, the force receiving portion 41 and the force transmitting portion 42 rotate counterclockwise together, but at this time the first elastic member 442 in the restoring portion 44 is not compressed; when the second driving force is eliminated, the second driving force receiving unit 4 is restored to the position as shown in FIG. Figure 6 In the position shown in FIG. 1 , the first elastic member 442 in the recovery portion 44 will not be compressed during this process.

[0077] And as Figure 8 As shown, when the second driving force receiving unit 4 receives the thrust from the second driving head 202, when viewed along the second direction Y, the second driving force receiving unit 4 rotates clockwise as a whole, that is, the aforementioned force receiving portion 41 and the force transmitting portion 42 rotate clockwise together, and at the same time, the first elastic member 442 in the recovery portion 44 is compressed; when the thrust is eliminated, the elastic force of the first elastic member 442 in the recovery portion 44 causes the second driving force receiving unit 4 to rotate clockwise as a whole back to the original position. Figure 6 The position shown in FIG. 4 is that the elastic force of the first elastic member 442 in the restoring portion 44 causes the force receiving portion 41 and the force transmitting portion 42 to rotate clockwise together back to the position shown in FIG. Figure 6 Position shown.

[0078] It should be noted that in the first embodiment and the second embodiment provided by the present invention, the second driving force receiving unit 4 has the same structure and working principle.

[0079] [First driving force receiving unit]

[0080] See also Figure 2 、 Figure 11-13 、 Figure 15 、 Figure 18-19 、 Figure 21 、 Figure 26-30 , which mainly shows the structure and working principle of the first driving force receiving unit 3 in different embodiments of the present invention.

[0081] In some embodiments, the first driving force receiving unit 3 includes an engagement member 31 and a linkage member 32. The linkage member 32 is connected to the engagement member 31 and is used to control the engagement structure, thereby controlling the first driving force receiving unit 3 to be in an engaged state or a retracted state. The engaged state refers to a state in which the engagement member 31 in the first driving force receiving unit 3 is able to engage with the first drive head in the printer 200, and the retracted state refers to a state in which the engagement member 31 in the first driving force receiving unit 3 is unable to engage with the first drive head in the printer 200.

[0082] Furthermore, the linkage member 32 is also connected to the second driving force receiving unit 4 , and controls the engagement structure according to the second driving force received by the second driving force receiving unit 4 , thereby controlling the first driving force receiving unit 3 to be in an engaged state or a retracted state.

[0083] In some embodiments, the connection between the linkage member 32 and the second driving force receiving unit 4 includes: the linkage member 32 and the second driving force receiving unit 4 are movably connected or fixedly connected. In other embodiments, the connection between the linkage member 32 and the second driving force receiving unit 4 includes: the linkage member 32 and the second driving force receiving unit 4 are not in contact, and when the second driving force receiving unit 4 receives the second driving force from the printer 200, it moves and then contacts the linkage member 32, thereby controlling the linkage member 32, and then the linkage member 32 controls the engagement member 31, so that the first driving force receiving unit 3 is in an engaged state or a retracted state. In some further embodiments, such as Figure 2 、 Figure 11-13 、 Figure 15 、 Figure 18-19 As shown, the connection between the linkage member 32 and the second driving force receiving unit 4 may also include: the linkage member 32 abuts against the second driving force receiving unit 4, and when the second driving force receiving unit 4 receives the second driving force from the printer 200, it moves, thereby driving the linkage member 32, and then the linkage member 32 controls the engagement member 31, so that the first driving force receiving unit 3 is in an engaged state or a retracted state.

[0084] Furthermore, the linkage member 32 is connected to the first force transmission part 421 in the second driving force receiving unit 4 , wherein the connection method of the linkage member 32 and the first force transmission part 421 can refer to the connection method of the linkage member 32 and the second driving force receiving unit 4 described above.

[0085] As described above, when the second driving force receiving unit 4 does not receive the second driving force from the second driving head 202 in the printer 200, the second driving force receiving unit 4 is located in the state as shown in FIG. Figure 6 or Figure 24The second driving force receiving unit 4 is in the position shown (i.e. the initial position), at which time the first driving force receiving unit 3 is in the engaged state. When the second driving force receiving unit 4 receives the second driving force from the second driving head 202 in the printer 200, the second driving force receiving unit 4 moves to the position shown in FIG. Figure 7 or Figure 25 The second driving force receiving unit 4 is shown in the position where the first driving force receiving unit 3 is in the retracted state.

[0086] Furthermore, in some embodiments, the engagement member 31 includes a movable portion 311 , the linkage member 32 is connected to the movable portion 311 , and the linkage member 32 is used to control the movable portion 311 , thereby controlling the first driving force receiving unit 3 to be in the engaged state or the retracted state.

[0087] Specifically, in some embodiments, the linkage member 32 controls the first driving force receiving unit 3 to be in the engaged state or the retracted state by controlling the movement of the movable portion 311 in the second direction Y.

[0088] More specifically, when the process cartridge 100 is in the printer 200, the process cartridge 100 as a whole does not move relative to the printer 200 in the second direction Y at any time. That is, using the printer 200 as a reference, generally speaking, at any time, the process cartridge 100 as a whole does not move in the second direction Y. The movable portion 311 has an engaged position and a retracted position in the second direction Y. When the movable portion 311 is in the engaged position, the first driving force receiving unit 3 is in an engaged state; when the movable portion 311 is in the retracted position, the first driving force receiving unit 3 is in a retracted state. Therefore, the linkage member 32 can control the first driving force receiving unit 3 to be in the engaged state or the retracted state by controlling the movable part 311 to move to the engaged position or the retracted position, that is, when the linkage member 32 controls the movable part 311 to move to the engaged position, the first driving force receiving unit 3 is in the engaged state; when the linkage member 32 controls the movable part 311 to move to the retracted position, the first driving force receiving unit 3 is in the retracted state.

[0089] Furthermore, when the second driving force receiving unit 4 does not receive the second driving force from the second driving head 202 in the printer 200, the second driving force receiving unit 4 is in a state as follows: Figure 6 or Figure 24 In the state where the second driving force receiving unit 4 is located (i.e., the initial position), the linkage member 32 controls the movable portion 311 to be in the engaged position, and the first driving force receiving unit 3 is in the engaged state; when the second driving force receiving unit 4 receives the second driving force from the second driving head 202 in the printer 200, the second driving force receiving unit 4 moves to the position shown in FIG. Figure 7 or Figure 25 The second driving force receiving unit 4 is shown in the position, and the linkage member 32 controls the movable part 311 to move to the retracted position according to the second driving force received by the second driving force receiving unit 4. At this time, the first driving force receiving unit 3 is in the retracted state.

[0090] In some embodiments, the engaging member 31 further includes a main body portion 312 connected to the developing roller 21 . In the second direction Y, the main body portion 312 does not move, and the movable portion 311 can move relative to the main body portion 312 . The main part 312 and the movable part 311 in the engaging member 31 cooperate so that the engaging member 31 can engage with the first drive head in the printer 200 to receive the first driving force. When the first driving force receiving unit 3 is in the engaged state, the movable part 311 is in the engaged position. The main part 312 and the movable part 311 in the engaging member 31 cooperate so that the engaging member 31 engages with the first drive head in the printer 200 to receive the first driving force, thereby driving the developing roller 21 in the developing unit 2 to rotate; when the first driving force receiving unit 3 is in the retracted state, the movable part 311 is in the retracted position. The main part 312 and the movable part 311 in the engaging member 31 cooperate so that the engaging member 31 cannot engage with the first drive head in the printer 200 and cannot receive the first driving force, thereby causing the developing roller 21 in the developing unit 2 to stop rotating.

[0091] The movable portion 311 is part or all of the engaging member 31. In some embodiments, such as Figure 1-13 and Figure 20-30 In the embodiment shown, the engaging member 31 does not include the main body portion 312, or the main body portion 312 of the engaging member 31 overlaps with the movable portion 311. In this case, the movable portion 311 is the entire engaging member 31, and the movable portion 311 can be engaged with the first drive head in the printer 200 alone. When the movable portion 311 is in the engaged position, the movable portion 311 is engaged with the first drive head in the printer 200 alone. When the movable portion 311 is in the retracted position, the movable portion 311 does not contact the first drive head of the printer 200 and thus cannot receive the first driving force from the first drive head in the printer 200. In some embodiments, such as Figure 14-19In the illustrated embodiment, the engaging member 31 includes a main body portion 312, or in other words, the main body portion 312 and the movable portion 311 of the engaging member 31 are two different parts. In this case, the movable portion 311 is part of the engaging member 31, and the movable portion 311 needs to cooperate with the main body portion 312 to enable the engaging member 31 to engage with the first drive head in the printer 200. Specifically, when the movable portion 311 is in the engaged position, the movable portion 311 cooperates with the main body portion 312 to engage with the first drive head in the printer 200. When the movable portion 311 is in the retracted position, the main body portion 312 remains in its original position and may still be in contact with the first drive head in the printer 200, but the movable portion 311 does not contact the first drive head in the printer 200, so that the movable portion 311 cooperates with the main body portion 312 to not engage with the first drive head in the printer 200.

[0092] In some embodiments, the engaging member 31 is rotatable as a whole, that is, at least a portion of the engaging member 31 is rotatable; and the linkage member 32 is rotatable as a whole, that is, at least a portion of the linkage member 32 is rotatable. When the movable portion 311 is in the engaged position, the movable portion 311 and the main portion 312 cooperate to engage with the first drive head in the printer 200 and rotate together after receiving the first driving force. When the movable portion 311 is in the retracted position, since the engaging member 31 does not receive the first driving force, neither the movable portion 311 nor the main portion 312 rotates. Furthermore, when the second driving force receiving unit 4 receives the second driving force, the second driving force receiving unit 4 rotates and drives the linkage member 32 to rotate, thereby controlling the movable portion 311 in the engaging member 31 to move to the retracted position. At this time, the movable portion 311 and the main portion 312 are unable to receive the first driving force and rotate.

[0093] Specifically, when the second driving force receiving unit 4 receives the second driving force, the second driving force receiving unit 4 rotates as a whole, that is, the aforementioned force receiving part 41 and the force transmitting part 42 rotate together, and then the rotation of the first force transmitting part 421 in the force transmitting part 42 drives the linkage member 32 to rotate, and then the linkage member 32 controls the movable part 311 in the engaging member 31 to move to the retracted position. At this time, the movable part 311 and the main part 312 cannot receive the first driving force and rotate.

[0094] See also Figure 11-13 and Figure 18-19 , which is a structural diagram of an embodiment of a first driving force receiving unit 3 provided by the present utility model.

[0095] In some embodiments, the linkage member 32 includes a force receiving part 321, a linkage part 322 and a fixed part 323. The force receiving part 321 is connected to the second driving force receiving unit 4, the force receiving part 321 is connected to the linkage part 322, and the linkage part 322 is connected to the fixed part 323; the force receiving part 321 is used to receive the third driving force generated by the second driving force receiving unit 4 on the force receiving part 321 when the second driving force is received. When the force receiving part 321 receives the third driving force, the force receiving part 321 rotates, driving the linkage part 322 to rotate, and then the linkage part 322 moves relative to the force receiving part 321 in the second direction Y under the constraint of the fixed part 323.

[0096] Therefore, when the second driving force receiving unit 4 receives the second driving force, the second driving force receiving unit 4 moves (for example, Figure 7 The force receiving portion 321 rotates as the second driving force receiving unit 4 moves, thereby driving the linkage portion 322 to rotate. Then, the linkage portion 322 moves relative to the force receiving portion 321 in the second direction Y under the constraint of the fixed portion 323, thereby driving the movable portion 311 to move in the second direction Y to the retracted position.

[0097] More specifically, when the force receiving part 41 of the second driving force receiving unit 4 receives the second driving force, the first force transmitting part 421 in the second driving force receiving unit 4 rotates, and the force receiving part 321 in the linkage member 32 rotates along with the rotation of the first force transmitting part 421, thereby driving the linkage part 322 to rotate as a whole, and then the linkage part 322 is constrained by the fixed part 323, and moves relative to the force receiving part 321 in the second direction Y, thereby driving the movable part 311 to move in the second direction Y to the retracted position.

[0098] Further, in some embodiments, the force receiving part 321 and the linkage part 322 are coaxially arranged, and a first protrusion 3211 is provided in one of the force receiving part 321 and the linkage part 322, and a first groove 3221 is provided in the other of the force receiving part 321 and the linkage part 322. The first protrusion 3211 and the first groove 3221 both extend along the second direction Y, and the first protrusion 3211 and the first groove 3221 cooperate so that the force receiving part 321 and the linkage part 322 cannot rotate relative to each other but can rotate synchronously, and the force receiving part 321 and the linkage part 322 can move relative to each other in the second direction Y.

[0099] For example, Figure 11-13 and Figure 18-19As shown, the force receiving part 321 and the linkage part 322 are coaxially arranged, the force receiving part 321 is provided with a first protrusion 3211, and the linkage part 322 is provided with a first groove 3221. The first protrusion 3211 and the first groove 3221 both extend along the second direction Y. The first protrusion 3211 and the first groove 3221 cooperate so that the force receiving part 321 and the linkage part 322 cannot rotate relative to each other but can rotate synchronously, and the force receiving part 321 and the linkage part 322 can move relative to each other in the second direction Y.

[0100] In some embodiments, as Figure 13 As shown, the fixed portion 323 includes a first guide surface 3231, and the linkage portion 322 includes a second guide surface 3222. The first guide surface 3231 of the fixed portion 323 contacts the second guide surface 3222 of the linkage portion 322, so that the linkage portion 322 can move along the first guide surface 3231 of the fixed portion 323. Furthermore, under the constraint of the fixed portion 323, the linkage portion 322 and the force receiving portion 321 move relative to each other. The first guide surface 3231 and the second guide surface 3222 are both inclined along the second direction Y.

[0101] Therefore, when the second driving force receiving unit 4 receives the second driving force, as seen along the second direction Y, Figure 7 As shown, the second driving force receiving unit 4 rotates counterclockwise, thereby driving the force receiving portion 321 in the first driving force receiving unit 3 to rotate clockwise. Since the first protrusion 3211 of the force receiving portion 321 cooperates with the first groove 3221 of the linkage portion 322, the force receiving portion 321 and the linkage portion 322 can rotate simultaneously. Therefore, when the force receiving portion 321 in the first driving force receiving unit 3 rotates clockwise, the linkage portion 322 also rotates clockwise, but the fixed portion 323 does not rotate accordingly. The fixed portion 323 is fixed in the process of the linkage portion 322 rotating. Therefore, when the linkage portion 322 rotates, the fixed portion 323 does not rotate. When 322 rotates clockwise, since the first guide surface 3231 of the fixed portion 323 and the second guide surface 3222 of the linkage portion 322 are both inclined along the second direction Y, and the first guide surface 3231 is in contact with the second guide surface 3222, the relative movement between the first guide surface 3231 and the second guide surface 3222 will cause the linkage portion 322 and the fixed portion 323 to move relative to each other in the second direction Y. At the same time, since the fixed portion 323 is fixed, only the linkage portion 322 moves in the second direction Y, and drives the movable portion 311 to move to the retracted position in the second direction Y (such as Figure 4 or Figure 17 shown in the retracted position).

[0102] In some embodiments, as Figure 11-13 and Figure 18-19As shown, the linkage portion 322 includes a pushing surface 3223, and the movable portion 311 includes a pushed surface 3111. Therefore, when the linkage portion 322 moves in the second direction Y, the pushing surface 3223 of the linkage portion 322 pushes the pushed surface 3111 of the movable portion 311, thereby driving the movable portion 311 to move to the retracted position in the second direction Y. When the movable portion 311 is in the engaged position, the pushing surface 3223 may or may not contact the pushed surface 3111. Even if the pushing surface 3223 does not contact the pushed surface 3111, when the second driving force receiving unit 4 receives the second driving force, the movement of the linkage portion 322 can ultimately cause its pushing surface 3223 to push the pushed surface 3111 of the movable portion 311, thereby driving the movable portion 311 to move to the retracted position in the second direction Y. In other embodiments, the linkage portion 322 is fixedly connected to the movable portion 311. When the linkage portion 322 moves in the second direction Y, it naturally drives the movable portion 311 to move in the second direction Y and moves the movable portion 311 to the retracted position.

[0103] In some embodiments, as Figure 11-13 and Figure 18-19 As shown, the first driving force receiving unit 3 further includes an elastic member 33 connected to the movable portion 311 of the engagement member 31 for urging the first driving force receiving unit 3 to return from the retracted state to the engaged state.

[0104] Specifically, in some embodiments, Figure 11-13 and Figure 18-19 As shown, the fixed portion 323 further includes a third guide surface 3232, and the linkage portion 322 further includes a fourth guide surface 3224. When the first driving force receiving unit 3 is in the retracted state, the linkage portion 322 is able to remain in the retracted position due to the abutment between the third guide surface 3232 of the fixed portion 323 and the fourth guide surface 3224 of the linkage portion 322 in the second direction Y. At this time, one end of the elastic member 33 is connected to the movable portion 311, and the other end is connected to the fixed portion 323 of the linkage member 32, and the elastic member 33 is compressed. It should be noted that the fixed portion 323 is the portion of the linkage member 32 that does not move relative to the printer 200 in the second direction Y when the process cartridge 100 is in the printer 200.

[0105] That is, when the first driving force receiving unit 3 is in the retracted state, in the second direction Y, the third guide surface 3232 of the fixed portion 323, the fourth guide surface 3224 of the linkage portion 322, the pushing surface 3223 of the linkage portion 322, the pushed surface 3111 of the movable portion 311, the elastic member 33, and the fixed portion 323 are arranged in sequence, and at the same time, the movable portion 311 of the engaging member 31 passes through the linkage portion 322 and the fixed portion 323.

[0106] Therefore, when the first driving force receiving unit 3 is in a retracted state, the movable part 311 is in a retracted position. At this time, since the elastic member 33 is in a compressed state, it has a tendency to push the movable part 311 and the linkage part 322 outward in the second direction Y (that is, push in the second direction Y), and the third guide surface 3232 of the fixed part 323 abuts against the fourth guide surface 3224 of the linkage part 322, and the pushing surface 3223 of the linkage part 322 abuts against the pushed surface 3111 of the movable part 311, and the fixed part 323 is immovable in the second direction Y, so that the fixed part 323 abuts against the linkage part 322 to make the linkage part 322 immovable, and the linkage part 322 further abuts against the movable part 311 to make the movable part 311 immovable, so that the movable part 311 is maintained in the retracted position, and the first driving force receiving unit 3 is maintained in the retracted state.

[0107] When the second driving force applied to the second driving force receiving unit 4 is eliminated, the linkage part 322 and the force receiving part 321 are simultaneously urged to rotate back to their original positions in their rotation direction, so that the third guide surface 3232 of the fixed part 323 and the fourth guide surface 3224 of the linkage part 322 no longer abut against each other in the second direction Y and are staggered with each other, so that the linkage part 322 has space to move outward in the second direction Y (that is, move in the second direction Y), and since the elastic member 33 has elastic potential energy after being compressed, the elastic member 33 prompts the movable part 311 to move outward (that is, move in the second direction Y), and the movable part 311 returns to the engaged position from the retracted position. At the same time, the movable part 311 pushes the pushing surface 3223 of the linkage part 322 through its pushed surface 3111 during the outward movement, so as to prompt the linkage part 322 to return to its original position in the second direction Y, so that the first driving force receiving unit 3 returns to the engaged state from the retracted state.

[0108] It should be noted that, in Figure 11-13 and Figure 18-19In the embodiment provided, the engaging member 31 and the linkage member 32 in the first driving force receiving unit 3 are coaxially arranged, the engaging member 31 is rotatable, the force receiving portion 321 in the linkage member 32 is rotatable, the fixed portion 323 and the linkage portion 322 in the linkage member 32 are not rotatable, but the linkage portion 322 in the linkage member 32 is movable in the second direction Y. Further, as Figure 11-13 and Figure 18-19 As shown, the central axes of the fixed portion 323 , the linkage portion 322 and the force receiving portion 321 in the linkage member 32 almost coincide with each other, and the central axes of the engagement member 31 and the linkage member 32 also substantially coincide with each other.

[0109] In some embodiments, as Figure 11-13 and Figure 18-19 As shown, the linkage member 32 of the first driving force receiving unit 3 is not coaxially arranged with the second driving force receiving unit 4, and the linkage member 32 of the first driving force receiving unit 3 is arranged adjacent to the second driving force receiving unit 4. Therefore, when viewed along the second direction Y, counterclockwise rotation of the second driving force receiving unit 4 drives clockwise rotation of the force receiving portion 321 of the linkage member 32. The coaxial arrangement of the linkage member 32 of the first driving force receiving unit 3 and the second driving force receiving unit 4 enhances the rotational flexibility of the linkage member 32 and the second driving force receiving unit 4. Specifically, the rotation angles of the linkage member 32, especially the force receiving portion 321, and the rotation angles of the second driving force receiving unit 4, are not restricted, which facilitates meeting different requirements for transitioning from receiving the second driving force to retracting the first driving force receiving unit 3.

[0110] In other embodiments, such as Figure 20-30 As shown, the linkage member 32 of the first driving force receiving unit 3 is coaxially arranged with the second driving force receiving unit 4, thereby simplifying the structures of the first driving force receiving unit 3 and the second driving force receiving unit 4, reducing energy transmission loss between the first driving force receiving unit 3 and the second driving force receiving unit 4, and improving the efficiency of the transition from receiving the second driving force to retracting the first driving force receiving unit 3, thereby improving the operating efficiency of the process cartridge 100 and the printer 200. Furthermore, in some embodiments, the force receiving portion 321 of the linkage member 32 is fixedly connected to the second driving force receiving unit 4. Furthermore, in some embodiments, the force receiving portion 321 of the linkage member 32 is integrally formed with the second driving force receiving unit 4.

[0111] Therefore, in Figure 1-20In the embodiment shown, when the process cartridge 100 is not placed in the printer 200, the first driving force receiving unit 3 is in an engaged state, and the second driving force receiving unit 4 is in an initial position; when the process cartridge 100 is in the printer 200 and the printer 200 is operating normally, the first driving force receiving unit 3 is in an engaged state, and the second driving force receiving unit 4 is in an initial position; when the process cartridge 100 is in the printer 200 and the printer 200 begins to suspend operation, the second driving head 202 in the printer 200 moves and applies a second driving force to the force receiving portion 41 of the second driving force receiving unit 4, so that the second driving force receiving unit 4 moves to the separated position, along the second direction Y It can be seen that the second driving force receiving unit 4 rotates counterclockwise to the separation position, driving the force receiving part 321 of the linkage member 32 in the first driving force receiving unit 3 to rotate clockwise. Since the first protrusion 3211 of the force receiving part 321 cooperates with the first groove 3221 of the linkage part 322, the force receiving part 321 and the linkage part 322 can rotate simultaneously, but since the fixed part 323 is fixed during the rotation of the linkage part 322, the rotation of the linkage part 322 causes the linkage part 322 to move in the second direction Y, thereby driving the movable part 311 to move to the retracted position in the second direction Y, so that the first driving force receiving unit 3 is in a retracted state.

[0112] When the first driving force receiving unit 3 is in the retracted state, due to the abutment between the third guide surface 3232 of the fixed part 323 and the fourth guide surface 3224 of the linkage part 322 in the second direction Y, the linkage part 322 can maintain the retracted position, and the elastic member 33 is compressed at this time. Then, when the processing box 100 is in the printer 200 and the printer 200 is ready to continue working, the second drive head 202 in the printer 200 returns to its original position, and the second driving force applied to the second driving force receiving unit 4 is eliminated, and the linkage part 322 and the force receiving part 321 simultaneously rotate back to their original positions in their rotation directions, so that the third guide surface 3232 of the fixed part 323 and the fourth guide surface 3224 of the linkage part 322 no longer abut in the second direction Y, so that there is a certain distance between the fixed part 323 and the linkage part 322, and because the elastic member 33 has elasticity after being compressed, the elastic member 33 prompts the movable part 311 to return to the engaged position, and at the same time prompts the linkage part 322 to return to its original position in the second direction Y, so that the first driving force receiving unit 3 returns from the retracted state to the engaged state.

[0113] In the present utility model provided Figure 1-19In the embodiment shown, when the first driving force receiving unit 3 is in the retracted state, the elastic member 33 in the first driving force receiving unit 3 is in a compressed state and has elastic potential energy due to being compressed. When the first driving force receiving unit 3 transforms from the retracted state to the engaged state, the elastic member 33 releases the elastic potential energy, prompting the first driving force receiving unit 3 to return to the engaged state.

[0114] In other embodiments, see Figure 20-30 , which is a structural diagram of another embodiment of the first driving force receiving unit 3 provided by the present invention.

[0115] In such Figure 20-30 In the embodiment shown, when the first driving force receiving unit 3 is in an engaged state, the elastic member 33 in the first driving force receiving unit 3 is in a compressed state and has elastic potential energy due to being compressed. When the second driving force receiving unit 4 receives the second driving force, the elastic member 33 releases the elastic potential energy, causing the first driving force receiving unit 3 to change to a retracted state.

[0116] Specifically, the process cartridge 100 includes a photosensitive unit 1, a developing unit 2, a first driving force receiving unit 3, and a second driving force receiving unit 4. The first driving force receiving unit 3 is configured to receive a first driving force from the printer 200 to rotate the developing roller 21 in the developing unit 2. The description of the photosensitive unit 1, the developing unit 2, the first driving force receiving unit 3, and the second driving force receiving unit 4 will not be repeated here, and reference may be made to the description of the corresponding sections above.

[0117] The first driving force receiving unit 3 includes an engagement member 31 and a linkage member 32. The engagement member 31 is connected to the linkage member 32. The engagement member 31 is used to engage with the first drive head in the printer 200 to receive the first driving force from the printer 200. The linkage member 32 is used to control the engagement member 31. The engagement member 31 is connected to the developing roller 21 in the developing unit 2 and is used to drive the developing roller 21 to rotate when receiving the first driving force. The linkage member 32 includes an elastic member 33. The elastic member 33 is connected to the engagement member 31. When the first driving force receiving unit 3 is in an engaged state, the elastic member 33 is in a compressed state. The engaged state is a state in which the first driving force receiving unit 3 is able to engage with the first drive head in the printer 200 to receive the first driving force.

[0118] When the first driving force receiving unit 3 is in an engaged state, the elastic member 33 in the first driving force receiving unit 3 is in a compressed state and has elastic potential energy due to being compressed. Therefore, when the second driving force receiving unit 4 receives the second driving force, the elastic potential energy of the elastic member 33 can be quickly released, so that the first driving force receiving unit 3 is quickly transformed to the retracted state, thereby improving the efficiency of the first driving force receiving unit 3 in transforming from the engaged state to the retracted state.

[0119] The engaging member 31 includes a main body part 312 and a movable part 311. The movable part 311 is connected to the elastic member 33, and the linkage member 32 is connected to the movable part 311. The linkage member 32 is used to control the movable part 311, thereby controlling the first driving force receiving unit 3 to be in an engaged state or a retracted state; the main body part 312 is connected to the developing roller 21. In the second direction Y, the main body part 312 will not move, and the movable part 311 can move relative to the main body part 312. Therefore, the main part 312 and the movable part 311 in the engaging member 31 cooperate so that the engaging member 31 can engage with the first drive head in the printer 200 to receive the first driving force. When the first driving force receiving unit 3 is in the engaged state, the movable part 311 is in the engaged position, and the main part 312 and the movable part 311 in the engaging member 31 cooperate so that the engaging member 31 engages with the first drive head in the printer 200 to receive the first driving force, thereby driving the developing roller 21 in the developing unit 2 to rotate; when the first driving force receiving unit 3 is in the retracted state, the movable part 311 is in the retracted position, and the main part 312 and the movable part 311 in the engaging member 31 cooperate so that the engaging member 31 cannot engage with the first drive head in the printer 200, thereby causing the developing roller 21 in the developing unit 2 to stop rotating.

[0120] The movable portion 311 is part or all of the engaging member 31 , and the description of the movable portion 311 and the main body portion 312 is omitted here, and reference may be made to the description of the corresponding portions mentioned above.

[0121] Furthermore, the linkage member 32 also includes a force receiving part 321, a linkage part 322 and a fixed part 323. The force receiving part 321 is used to receive a connection with the second driving force receiving unit 4, the force receiving part 321 is connected to the linkage part 322, and the linkage part 322 is connected to the fixed part 323; the force receiving part 321 is used to receive the third driving force generated by the second driving force receiving unit 4 on the force receiving part 321 when the second driving force is received. When the force receiving part 321 receives the third driving force, the force receiving part 321 rotates, so that the linkage part 322 is constrained by the fixed part 323 and moves relative to the force receiving part 321 in the second direction Y. It should be noted that the force receiving part 321 and the fixed part 323 will not move in the second direction Y. Therefore, the linkage part 322 and the force receiving part 321 move relative to each other in the second direction Y, which is equivalent to the linkage part 322 moving in the second direction Y.

[0122] More specifically, in some embodiments, Figures 26-27 As shown, the force receiving portion 321 and the linkage portion 322 both have a first axis. The force receiving portion 321 has a second protrusion 3212, and the linkage portion 322 has a third protrusion 3225. Both the second protrusion 3212 and the third protrusion 3225 extend perpendicular to the second direction Y. When the first driving force receiving unit 3 is in an engaged state, the third protrusion 3225 and the second protrusion 3212 are sequentially positioned with the developing roller 21 in the second direction Y, and the second protrusion 3212 and the third protrusion 3225 abut against each other, thereby maintaining the engaged state of the first driving force receiving unit 3. When the second driving force receiving unit 4 receives the second driving force, the elastic member 33 forces the movable portion 311 to move to a retracted position in the second direction Y. Consequently, the projections of the second protrusion 3212 and the third protrusion 3225 in the second direction Y at least partially overlap, and the first driving force receiving unit 3 is in a retracted state. The first axis is parallel to the second direction Y.

[0123] Furthermore, in some embodiments, Figure 26-30 As shown, the linkage part 322 also includes a fourth protrusion 3226, and the third protrusion 3225 and the fourth protrusion 3226 are spaced apart to form a first recess B. When the first driving force receiving unit 3 is in a retracted state, the first recess B is used to accommodate the second protrusion 3212, so that the linkage part 322 and the force receiving part 321 are limited to each other.

[0124] Furthermore, in some embodiments, Figure 26-30As shown, the second protrusion 3212 has a first guide surface 3212A, and the third protrusion 3225 has a second guide surface 3225A. The first guide surface 3212A is opposite to the second guide surface 3225A, so that the first guide surface 3212A can move relatively along the second guide surface 3225A.

[0125] Furthermore, in some embodiments, one of the fixing portion 323 and the linkage portion 322 has a fifth protrusion 3233, and the other of the fixing portion 323 and the linkage portion 322 has a second groove 3227. The fifth protrusion 3233 and the second groove 3227 both extend along the second direction Y and cooperate with each other. Figure 26-30 In the illustrated embodiment, the fixed portion 323 has a fifth protrusion 3233, and the linkage portion 322 has a second groove 3227. The fifth protrusion 3233 and the second groove 3227 both extend along the second direction Y and cooperate with each other, thereby constraining the fixed portion 323 and the linkage portion 322. The linkage portion 322 cannot rotate relative to the fixed portion 323. Since the fixed portion 323 is stationary, the linkage portion 322 cannot rotate. Consequently, the linkage portion 322 can move in the second direction Y under the constraint of the fixed portion 323. Furthermore, the second groove 3227 can be formed by the third protrusion 3225 and the fourth protrusion 3226 being spaced apart.

[0126] Furthermore, in some embodiments, Figure 26-30 As shown, the fixed portion 323 further has a first abutting portion 3234. One end of the elastic member 33 is connected to the first abutting portion 3234 of the fixed portion 323, and the other end is connected to the second abutting portion 3112 of the movable portion 311 of the engaging member 31. Simultaneously, the movable portion 311 of the engaging member 31 is connected to the linkage portion 322, such that when the linkage portion 322 moves in the second direction Y, the movable portion 311 of the engaging member 31 also moves in the second direction Y. The connection between the movable portion 311 and the linkage portion 322 may be achieved by: abutting the movable portion 311 and the linkage portion 322; fixedly connecting the movable portion 311 and the linkage portion 322; or flexibly connecting the movable portion 311 and the linkage portion 322.

[0127] More specifically, in some embodiments, the movable portion 311 of the engagement member 31 includes a sixth protrusion 3113, and in the second direction Y, the sixth protrusion 3113 abuts against the linkage portion 322, so that the linkage portion 322 abuts against the sixth protrusion 3113 in the second direction Y, thereby maintaining the elastic member 33 in a compressed state. Figure 26-30 In the illustrated embodiment, the movable portion 311 and the linkage portion 322 are connected in such a manner that the movable portion 311 and the linkage portion 322 abut against each other.

[0128] More specifically, when the first driving force receiving unit 3 is in an engaged state, in the second direction Y, the sixth protrusion 3113, the linkage part 322 (including the third protrusion 3225), the second protrusion 3212 of the force receiving part 321, the first abutment portion 3234 of the fixed part 323, the elastic member 33, and the second abutment portion 3112 of the movable part 311 are arranged in sequence, and at the same time, the movable part 311 of the engaging member 31 passes through the linkage part 322 and the fixed part 323.

[0129] Therefore, when the first driving force receiving unit 3 is in the engaged state, the movable part 311 is in the engaged position. In the second direction Y, the sixth protrusion 3113 abuts against the linkage part 322, and the third protrusion 3225 of the linkage part 322 abuts against and presses against the second protrusion 3212 of the force receiving part 321. One end of the elastic member 33 is connected to the first abutting portion 3234 of the fixed part 323, and the other end is connected to the second abutting portion 3112 of the movable part 311 of the engaging member 31, and the elastic member 33 is in a compressed state. Since the force receiving part 321 is immovable in the second direction Y, the second protrusion 3212 of the force receiving part 321 can press against the third protrusion 3225 of the linkage part 322 so that the linkage part 322 is also immovable in the second direction Y, and then the linkage part 322 presses against the sixth protrusion 3113 of the movable part 311 of the engaging member 31 so that the movable part 311 is also immovable in the second direction Y. At the same time, the elastic member 33 forms a certain counteracting force between the movable part 311 and the fixed part 323, and then forms a certain counteracting force between the movable part 311 and the linkage member 32, so that when the first driving force receiving unit 3 is in the engaged state, the elastic member 33 is maintained in a compressed state.

[0130] When the second driving force receiving unit 4 receives the second driving force, the third driving force is generated on the force receiving portion 321. After receiving the third driving force, the force receiving portion 321 rotates. Since the linkage portion 322 is constrained by the fixing portion 323 and cannot rotate, the rotation of the force receiving portion 321 causes the first guide surface 3212A of the second protrusion 3212 on the force receiving portion 321 and the second guide surface 3225A of the third protrusion 3225 on the linkage portion 322 to move relative to each other, and a rotation occurs between the force receiving portion 321 and the linkage portion 322. The relative displacement causes the second protrusion 3212 of the force receiving part 321 and the third protrusion 3225 of the linkage part 322 to gradually stagger, and the second protrusion 3212 no longer abuts against the third protrusion 3225. At this time, the elastic member 33 is able to release its elastic potential energy originally in the compressed state. One end of the elastic member 33 is fixed to the first abutting portion 3234 of the fixed part 323, and the other end pushes the movable part 311 so that the movable part 311 moves in the second direction Y and moves to the retracted position. At this time, the first driving force receiving unit 3 is in a retracted state.

[0131] When the second driving force on the second driving force receiving unit 4 disappears, the third driving force on the force receiving portion 321 disappears, prompting the force receiving portion 321 to return to its original position (eg, Figure 24 The position shown in the figure), and in this process, the rotation of the force receiving part 321 causes the first guide surface 3212A of the second protrusion 3212 on the force receiving part 321 and the second guide surface 3225A of the third protrusion 3225 on the linkage part 322 to move relative to each other, so that a relative displacement occurs between the force receiving part 321 and the linkage part 322. Since the force receiving part 321 does not move in the second direction Y, the linkage part 322 moves in the second direction Y from the retracted position to the engaged position, and the first driving force receiving unit 3 returns to the engaged state. At this time, the elastic member 33 returns to the compressed state.

[0132] The first driving force receiving unit 3 further includes a transmission member 34 for transmitting the first driving force to other rotating parts (such as a stirring roller, etc.) in the process cartridge 100 after receiving the first driving force. The transmission member 34 includes a gear portion 341 for transmitting the first driving force. The transmission member 34 is immovable in the second direction Y. Figure 29 As shown, the first abutting portion 3234 of the fixing portion 323 may be provided at a position other than the gear portion 341 in the transmission member 34 , which may be determined based on actual conditions.

[0133] In some embodiments, as Figure 20-30As shown, the force receiving portion 321 is fixedly connected to the second driving force receiving unit 4. Furthermore, the force receiving portion 321 and the second driving force receiving unit 4 can be integrally formed. When the second driving force receiving unit 4 receives the second driving force, the second driving force receiving unit 4 and the force receiving portion 321 rotate integrally.

[0134] In other embodiments, Figure 1-19 As shown, the force receiving portion 321 is not coaxially arranged with the second driving force receiving unit 4 . When the second driving force receiving unit 4 receives the second driving force, it rotates and applies the third driving force to the force receiving portion 321 to drive the force receiving portion 321 to rotate.

[0135] In the present utility model Figure 1-30 In the embodiment provided, the photosensitive unit 1 may further include a side cover 12, and part of the structure of the fixing portion 323 may be provided on the side cover 12, for example, the first guide surface 3231 and the second guide surface 3232 of the fixing portion 323 are provided on the side cover 12 of the photosensitive unit 1, as shown in FIG. Figure 13 or the fifth protrusion 3233 of the fixed portion 323 is provided on the side cover 12 of the photosensitive unit 1, as shown Figure 30 shown.

[0136] In some embodiments, as Figure 1-30 As shown, the force receiving portion 321 of the linkage member 32 is further provided with a seventh protrusion 3213, and the fixing portion 323 is further provided with a limiting portion 3235. When the force receiving portion 321 rotates, the seventh protrusion 3213 rotates accordingly. The limiting portion 3235 is used to limit the rotational limit position of the seventh protrusion 3213 and thus limit the rotation angle of the seventh protrusion 3213, thereby limiting the rotation angle of the force receiving portion 321. The limiting portion 3235 of the fixing portion 323 can be provided on the side cover 12 of the photosensitive unit 1.

[0137] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A process cartridge, used in a printer, characterized in that: The process cartridge includes a photosensitive unit, a developing unit, and a first driving force receiving unit, wherein the first driving force receiving unit is used to receive a first driving force from the printer to drive the developing roller in the developing unit to rotate; The first driving force receiving unit includes an engaging member and a linkage member, wherein the engaging member is used to engage with the first driving head in the printer to receive the first driving force from the printer, and the linkage member is used to control the engaging member; When the process cartridge receives the second driving force applied by the printer, the linkage member drives the movable portion of the engagement member to move and eventually causes the first driving force receiving unit to be in a retracted state.

2. The process cartridge according to claim 1, wherein The engaging member includes a main body portion and the movable portion, the main body portion is connected to the developing roller, and the movable portion is connected to the linkage member, so that the linkage member can drive the movable portion to move and put the first driving force receiving unit in the retracted state.

3. The process cartridge according to claim 1, wherein The first driving force receiving unit includes an engaged state and a retracted state. When the first driving force receiving unit is in the engaged state, the engaging member is capable of engaging with the drive head in the printer and receiving the first driving force in the printer to drive the developing roller in the developing unit to rotate. When the first driving force receiving unit is in the retracted state, the movable part is in a retracted position in the first direction relative to the first driving force receiving unit when it is in the engaged state.

4. The process cartridge according to claim 1, wherein The process cartridge further includes a second driving force receiving unit, the second driving force receiving unit being configured to receive the second driving force in the printer, and the second driving force receiving unit being connected to the linkage member; When the second driving force receiving unit receives the second driving force from the printer, the photosensitive unit and the developing unit move relative to each other and are eventually in a separated state. At the same time, the second driving force receiving unit drives the linkage member to move, so that the linkage member can drive the movable part of the engaging member to move.

5. The process cartridge according to claim 1, wherein The linkage member includes a force receiving part, a linkage part and a fixed part. When the processing box receives the second driving force from the printer, the force receiving part drives the linkage part to move, and then the linkage part drives the movable part of the engaging member to move under the constraint of the fixed part and finally makes the first driving force receiving unit in a retracted state.

6. The process cartridge according to claim 5, wherein: The process cartridge further includes a second driving force receiving unit configured to receive the second driving force from the printer; The force receiving part is connected to the second driving force receiving unit. When the second driving force receiving unit receives the second driving force from the printer, the second driving force receiving unit drives the force receiving part to move, and then the force receiving part drives the linkage part to move.

7. The process cartridge according to claim 5, wherein: The force receiving portion is used to receive the second driving force from the printer. When the force receiving portion receives the second driving force from the printer, the force receiving portion drives the linkage portion to move.

8. The process cartridge according to claim 5, wherein The fixed part includes a first guide surface, and the linkage part includes a second guide surface. The first guide surface of the fixed part contacts the second guide surface of the linkage part. When the second driving force from the printer is received, under the constraint of the first guide surface of the fixed part, the second guide surface of the linkage part slides along the first guide surface, thereby driving the movable part of the engaging member to move and finally making the first driving force receiving unit in a retracted state.

9. The process cartridge according to claim 5, wherein: The linkage part includes a pushing surface, and the movable part includes a pushed surface. When the second driving force from the printer is received, the force receiving part drives the linkage part to move, and then the linkage part, under the constraint of the fixed part, pushes the pushed surface of the movable part through the pushing surface, thereby driving the movable part of the engaging member to move and finally making the first driving force receiving unit in a retracted state.

10. The process cartridge according to claim 5, wherein When the processing box receives the second driving force from the printer, the force receiving part rotates and drives the linkage part to rotate, and then the linkage part moves in the first direction under the constraint of the fixed part, and drives the movable part of the engaging member to move and finally makes the first driving force receiving unit in a retracted state.

11. The process cartridge according to claim 3, wherein The first driving force receiving unit further includes an elastic member connected to the movable portion of the engaging member for urging the first driving force receiving unit to return from the retracted state to the engaged state.

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