Processing box

Abstract

The processing box comprises a box body; a photosensitive drum; the driving receiving part is meshed with the driving output part to receive the driving force and transmit the driving force to the photosensitive drum; the fixing rod is fixedly arranged on the box body and is used for pressing the driving output part to a straightening position; and the mounting bulge is fixedly arranged on the box body and is used for abutting against the guide rail to lift the processing box when the processing box is mounted, so that the end part of the fixed rod can enter the insertion hole. Through the arrangement of the mounting bulge and the fixing rod, the driving output part can be straightened by the processing box through a fixed fixing rod structure, the processing box is simple in structure and easy to maintain after being damaged, the production of the processing box can be simplified, and the structural stability and the maintenance performance of the processing box can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of image forming, and in particular to a process cartridge. BACKGROUND

[0002] Image forming apparatuses form images on recording materials using electrophotographic image forming processes, and include electrophotographic copiers, electrophotographic printers (e.g., laser beam printers, LED printers), facsimile machines, word processors, and the like. Image forming apparatuses include image forming apparatuses that form images using a contact developing method that forms an image by performing a developing process in a state in which a developing member (developing roller) is in contact with a photosensitive drum, in which the developing roller is urged toward the photosensitive drum with a predetermined pressure during the developing process and is in contact with the surface of the photosensitive drum with the predetermined pressure. Process cartridges include at least one of an electrophotographic photosensitive drum as an image bearing member and a process means (developer bearing member (developing roller)) that can act on the drum, which are integrally configured as a cartridge that is detachably installed in an image forming apparatus.

[0003] A driving receiving portion is provided on the process cartridge, which engages with a driving output portion on the image forming apparatus to receive driving force when the process cartridge is installed on the image forming apparatus. In the prior art, the driving output portion on the image forming apparatus is initially in an inclined state, and the driving output portion needs to be aligned before engaging with the driving receiving portion after the process cartridge is installed. The process cartridge usually provides a movable swing lever to align the driving output portion, and the movable swing lever needs to be used in cooperation with a reset mechanism on the process cartridge, so that the structure of the process cartridge is very complex and is not easy to maintain after being damaged. SUMMARY

[0004] According to an aspect of the present application, there is provided a process cartridge that is detachably installed in an image forming apparatus, the image forming apparatus including a guide rail, a mounting portion, and a driving output portion that is rotatably installed in the mounting portion, the driving output portion being inclined, the mounting portion having an insertion hole, the process cartridge comprising:

[0005] a cartridge body;

[0006] a photosensitive drum;

[0007] a driving receiving portion for engaging with the driving output portion to receive driving force and transmitting the driving force to the photosensitive drum;

[0008] a fixing lever fixedly provided on the cartridge body for pressing the driving output portion to an aligned position; and

[0009] a mounting protrusion fixedly provided on the cartridge body for abutting against the guide rail to lift the process cartridge when the process cartridge is installed, so that an end portion of the fixing lever can enter the insertion hole.

[0010] Compared with the movable swing lever in the prior art, the fixing lever structure is used to realize the swing of the driving output part, the structure is simple, the maintenance is easy after damage, the production of the processing box is simplified, and the structural stability and maintenance performance of the processing box are improved.

[0011] In some embodiments, when the processing box is installed, the installation protrusion abuts against the guide rail, the processing box moves along the guide rail until the end of the fixing lever enters the insertion hole, the installation protrusion is separated from the guide rail, the processing box is lowered, the fixing lever is lowered along with the processing box, and the driving output part is pressed to the swing position.

[0012] In some embodiments, when the processing box is installed, the installation protrusion abuts against the guide rail, the processing box moves along the guide rail until the end of the fixing lever enters the insertion hole, the installation protrusion is separated from the guide rail, the processing box is lowered, the fixing lever is lowered along with the processing box, and the driving output part is pressed to the swing position.

[0013] In some embodiments, when the end of the fixing lever abuts against the installation part, the abutting position is located above the center line of the arc-shaped outer wall of the installation part, so that the end of the fixing lever can slide along the arc-shaped outer wall of the installation part until the end of the fixing lever is aligned with the insertion hole; the center line is a line passing through the center of the arc-shaped outer wall and parallel to the horizontal direction.

[0014] In some embodiments, when the end of the fixing lever enters the insertion hole, the door cover of the image forming apparatus is closed to push the processing box to move, so that the installation protrusion is separated from the guide rail, the processing box is lowered, and the fixing lever is lowered along with the processing box and presses the driving output part to the swing position.

[0015] In some embodiments, the box body includes a box body and an end cover fixed to the length direction end of the box body body, and the fixing lever and the installation protrusion are arranged on the end cover.

[0016] In some embodiments, the installation protrusion is arranged as a protrusion protruding away from the center direction of the processing box.

[0017] In some embodiments, the installation protrusion has two, which are arranged at both ends in the length direction of the box body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the image forming apparatus in the prior art;

[0019] Figure 2 It is a structural schematic diagram of the processing box of the present application;

[0020] Figure 3Fig. 2 is a schematic view of the driving end of the processing cartridge of the present application and the structure of the driving output portion, wherein the driving output portion is pressed to the right position by the fixed rod;

[0021] Figure 4 Fig. 4 is a sectional view of the end of the fixed rod and the arc-shaped outer wall of the mounting portion during the installation of the processing cartridge of the present application;

[0022] Figure 5 Fig. 5 is a sectional view of the end of the fixed rod and the arc-shaped outer wall of the mounting portion during the installation of the processing cartridge of the present application, wherein the positional relationship between the fixed rod and the center line of the arc-shaped outer wall is shown;

[0023] Figure 6 Fig. 6 is a sectional view of the processing cartridge of the present application installed to the correct installation position, wherein the end of the fixed rod extends into the insertion hole and presses the driving output portion to the right position.

[0024] Reference signs:

[0025] Cavity 1; guide rail 2; mounting portion 3; outer wall 31; insertion hole 32; driving output portion 4; processing cartridge 5; cartridge body 51; end cover 511; driving receiving portion 52; fixed rod 53; mounting protrusion 54; photosensitive drum 55. DETAILED DESCRIPTION

[0026] The present application will be further described below in conjunction with the drawings, obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0027] It should be noted that the terms "first", "second" and the like are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0028] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0030] In the above description, the description with reference to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0031] The present application provides a process cartridge 5 which is detachably installed in an image forming apparatus. For the convenience of description, a three-dimensional rectangular coordinate system is established in the present specification, with the length direction of the process cartridge 5 as a first direction X, with the horizontal direction as a second direction Y, and with the direction of gravity as a third direction Z, and the XYZ are perpendicular to each other. The process cartridge 5 has a driving end and a non-driving end at both ends in the first direction, respectively, wherein the driving end is provided with a driving receiving portion 52 to receive a driving force from the image forming apparatus.

[0032] Referring to Figure 1The image forming apparatus has a cavity 1 for mounting the process cartridge 5, the cavity 1 is closed by a door cover, the cavity 1 is provided with a guide rail 2, a mounting portion 3 and a driving output portion 4 on the side wall. The guide rail 2 is used for guiding the process cartridge 5 to enter the cavity 1 along the mounting direction and move to the correct mounting position, the mounting direction is inclined relative to the first direction and the second direction, and is towards the inside of the cavity 1 and downwards. The mounting portion 3 protrudes towards the inside of the cavity 1, and is used for protecting and mounting the driving output portion 4, the driving output portion 4 is rotatably mounted in the mounting portion 3, and the rotation axis of the driving output portion 4 is initially inclined relative to the first direction, specifically, the end of the driving output portion 4 close to the inside of the cavity 1 is tilted towards the +Z direction, after being adjusted, the rotation axis of the driving output portion 4 is parallel to the first direction, so as to be engaged with and drive the driving receiving portion 52 of the process cartridge 5. The outer wall 31 of the mounting portion 3 is a circular arc outer wall 31, and the outer wall 31 is provided with an insertion hole 32, the insertion hole 32 is used for inserting the mechanism (a fixed rod 53 in this embodiment) on the process cartridge 5 for adjusting the driving output portion 4.

[0033] Referring to Figure 2 , the process cartridge 5 includes a cartridge body 51, a photosensitive drum 55, a driving receiving portion 52, a fixed rod 53 and a mounting protrusion 54. The cartridge body 51 includes a cartridge body 51 body and an end cover 511 fixed on the end of the cartridge body 51 body in the first direction, and the end cover 511 has two, which are respectively arranged on the driving end and the non-driving end of the cartridge body 51 body. The photosensitive drum 55 is rotatably arranged in the cartridge body 51 along the first direction. The driving receiving portion 52 is arranged on the end of the photosensitive drum 55, and is used for being engaged with the driving output portion 4 to receive driving force and transmit the driving force to the photosensitive drum 55, and the rotation axis of the driving receiving portion 52 is parallel to the first direction.

[0034] The fixed rod 53 is fixedly arranged on the cartridge body 51, and in this embodiment, the fixed rod 53 is fixedly arranged on the end cover 511 of the driving end of the process cartridge 5, and has an end part extending along the -Y direction, which is used for pressing the driving output portion 4 to the adjusted position. The mounting protrusion 54 is fixedly arranged on the cartridge body 51, and in this embodiment, the mounting protrusion 54 is fixedly arranged on the end cover 511 and protrudes along the first direction on the end cover 511, specifically, protrudes towards the direction away from the center of the process cartridge 5, and the mounting protrusion 54 is used for abutting against the guide rail 2 when the process cartridge 5 is mounted, guiding the process cartridge 5 to be slightly lifted in the third direction when the process cartridge 5 is mounted, so as to facilitate the end part of the fixed rod 53 to smoothly enter the insertion hole 32, and when the mounting protrusion 54 is separated from the guide rail 2, the process cartridge 5 is lowered due to the gravity, and the fixed rod 53 is lowered with the process cartridge 5 to press the driving output portion 4 to the adjusted position (see Figure 3 ). The mounting protrusion 54 is preferably two, which are respectively arranged on the two ends (the driving end and the non-driving end) of the cartridge body 51, so as to facilitate the process cartridge 5 to be mounted.

[0035] When the processing cartridge 5 is installed, the installation protrusion 54 abuts against the guide rail 2, and the processing cartridge 5 is manually pushed to move along the guide rail 2 through the installation protrusion 54 until the end of the fixing rod 53 enters the insertion hole 32. Referring to Figure 4 and Figure 5 In the present embodiment, the abutment of the installation protrusion 54 against the guide rail 2 causes the processing cartridge 5 to be first lifted, so that the end of the fixing rod 53 first abuts against the outer wall 31 of the installation portion 3, at which time the processing cartridge 5 is continuously manually pushed in the installation direction and rotated counterclockwise (see the counterclockwise arrow in FIG. 4), so that the end of the fixing rod 53 slides along the arc-shaped outer wall 31 of the installation portion 3 until the end of the fixing rod 53 is aligned with the insertion hole 32, and the processing cartridge 5 is continuously moved in the installation direction, so that the end of the fixing rod 53 enters the insertion hole 32. At this time, the installation protrusion 54 still abuts against the guide rail 2. In other embodiments, the fixing rod 53 can also be designed in a shape and size such that it can enter the insertion hole 32 without rotating the processing cartridge 5, i.e., the end of the fixing rod 53 does not need to first abut against and slide along the arc-shaped outer wall 31, but can directly enter the insertion hole 32. Figure 5 Referring to

[0036] , preferably, the fixing rod 53 is designed in a shape and size (which can be designed in coordination with the shape and size of the installation protrusion 54) such that, when the end of the fixing rod 53 abuts against the installation portion 3, the abutment position is located above the center line L of the arc-shaped outer wall 31 of the installation portion 3, so that the end of the fixing rod 53 can smoothly slide along the arc-shaped outer wall 31 of the installation portion 3 until the end of the fixing rod 53 is aligned with the insertion hole 32. The center line L is a line passing through the center of the arc-shaped outer wall 31 and parallel to the horizontal direction (the second direction). Further, the abutment of the installation protrusion 54 against the guide rail 2 guides the support of the processing cartridge 5, so that the processing cartridge 5 is lifted in the third direction, i.e., the diameter of the installation protrusion 54 can determine the abutment position of the fixing rod 53 against the installation portion 3, so the shape and size of the fixing rod 53 and the diameter of the installation protrusion 54 need to be adaptively designed, as long as the end of the fixing rod 53 can enter the insertion hole 32, and the specific size is not limited. Figure 5 Referring to

[0037] , preferably, the fixing rod 53 is designed in a shape and size (which can be designed in coordination with the shape and size of the installation protrusion 54) such that, when the end of the fixing rod 53 abuts against the installation portion 3, the abutment position is located above the center line L of the arc-shaped outer wall 31 of the installation portion 3, so that the end of the fixing rod 53 can smoothly slide along the arc-shaped outer wall 31 of the installation portion 3 until the end of the fixing rod 53 is aligned with the insertion hole 32. The center line L is a line passing through the center of the arc-shaped outer wall 31 and parallel to the horizontal direction (the second direction). Further, the abutment of the installation protrusion 54 against the guide rail 2 guides the support of the processing cartridge 5, so that the processing cartridge 5 is lifted in the third direction, i.e., the diameter of the installation protrusion 54 can determine the abutment position of the fixing rod 53 against the installation portion 3, so the shape and size of the fixing rod 53 and the diameter of the installation protrusion 54 need to be adaptively designed, as long as the end of the fixing rod 53 can enter the insertion hole 32, and the specific size is not limited. Figure 6When the end of the fixing rod 53 is completely inserted into the insertion hole 32, the fixing rod 53 is above the driving output 4 in the third direction, the processing cartridge 5 is continuously pushed in the installation direction, so that the installation protrusion 54 is separated from the guide rail 2, the processing cartridge 5 is lowered (to the correct installation position), the fixing rod 53 is lowered with the processing cartridge 5, so that the driving output 4 is pressed downward to the right position, so that the driving output 4 is coincident with the rotation axis of the driving receiving part 52 of the processing cartridge 5 and engaged, and the installation of the processing cartridge 5 is completed. In this embodiment, when the end of the fixing rod 53 is completely inserted into the insertion hole 32, the closing of the door cover of the image forming apparatus pushes the processing cartridge 5 to continuously move into the cavity 1, so that the installation protrusion 54 is separated from the guide rail 2, so that the processing cartridge 5 is lowered. In other embodiments, the user can also manually operate to push the processing cartridge 5 to continuously move into the cavity 1, so that the installation protrusion 54 is separated from the guide rail 2.

[0038] Compared with the movable swing rod in the prior art, the installation protrusion 54 and the fixing rod 53 are arranged, so that the processing cartridge 5 can realize the right positioning of the driving output 4 through a fixed fixing rod 53 structure, the structure is simple, easy to maintain after damage, can simplify the production of the processing cartridge 5, and improve the structural stability and maintenance performance of the processing cartridge 5.

[0039] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, or the above technical solutions can be freely combined, including the free combination of technical features among the above different embodiments, which all belong to the protection scope of the present application.

Claims

1. A process cartridge detachably mountable in an image forming apparatus, the image forming apparatus including a guide rail, a mounting portion, and a drive output portion rotatably mounted in the mounting portion, the drive output portion being obliquely disposed, the mounting portion being provided with an insertion hole, characterized in that, The processing cartridge comprises: a cartridge body; a photosensitive drum; a driving receiving portion for engaging with the driving output portion to receive driving force and transmitting to the photosensitive drum; a fixing rod fixedly arranged on the cartridge body for pressing the driving output portion to a right position; and a mounting protrusion fixedly arranged on the cartridge body for lifting the processing cartridge when the processing cartridge is mounted to abut against the guide rail, so that the end of the fixing rod can enter the insertion hole.

2. The process cartridge according to claim 1, wherein, When the processing cartridge is mounted, the mounting protrusion abuts against the guide rail, the processing cartridge moves along the guide rail until the end of the fixing rod enters the insertion hole, the mounting protrusion is separated from the guide rail, so that the processing cartridge is lowered, the fixing rod is lowered with the processing cartridge to press the driving output portion to the right position, so that the driving output portion coincides with and engages with the rotation axis of the driving receiving portion.

3. The process cartridge of claim 2 wherein, When the processing cartridge is mounted, the mounting protrusion abuts against the guide rail, the processing cartridge moves along the guide rail until the end of the fixing rod abuts against the outer wall of the mounting portion, the processing cartridge rotates so that the end of the fixing rod slides along the outer wall of the mounting portion until the end of the fixing rod is aligned with the insertion hole, the processing cartridge is continuously pushed in the mounting direction so that the end of the fixing rod enters the insertion hole.

4. The process cartridge of claim 3 wherein, When the end of the fixing rod abuts against the mounting portion, the abutting position is above the center line of the arc-shaped outer wall of the mounting portion, so that the end of the fixing rod can slide along the arc-shaped outer wall of the mounting portion until the end of the fixing rod is aligned with the insertion hole; the center line is a line passing through the center of the arc-shaped outer wall and parallel to the horizontal direction.

5. The process cartridge of claim 1, wherein, When the end of the fixing rod enters the insertion hole, the door cover of the image forming apparatus is closed to push the processing cartridge to move, so that the mounting protrusion is separated from the guide rail, thereby lowering the processing cartridge, and the fixing rod lowers with the processing cartridge and presses the driving output portion to the right position.

6. The process cartridge according to any one of claims 1 to 5, wherein, The cartridge body comprises a cartridge body and an end cover fixed at the end of the cartridge body in the length direction, and the fixing rod and the mounting protrusion are arranged on the end cover.

7. The process cartridge according to any one of claims 1 to 5, wherein, The mounting protrusion is arranged as a protrusion protruding away from the center of the processing cartridge.

8. The process cartridge according to any one of claims 1 to 5, wherein, The mounting protrusion has two, which are arranged at both ends of the cartridge body in the length direction. The mounting protrusion has two, which are arranged at both ends of the cartridge body in the length direction.

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