CN220603853U - Processing box - Google Patents

Abstract

The utility model discloses a processing box which is detachably arranged in an image forming device, wherein the image forming device is provided with a tray and a separation control mechanism, one side of the processing box, which receives the driving force of the image forming device, is a driving end, and the other side of the processing box is a non-driving end, and the processing box comprises a drum unit, a developing unit, a drum connecting part, a connecting part and a movable part, wherein photosensitive parts and developing parts are respectively arranged on the drum unit and the developing unit; the drum coupling member is provided at one end of the drum unit and receives a driving force from the image forming apparatus to transmit to the photosensitive member; the movable component is arranged on the driving end and the\or non-driving end, can receive the acting force from the separation control mechanism and drive the photosensitive component or the developing component to move between the developing position and the interval position. The utility model achieves the purpose of separating the drum roller by arranging the movable component which can receive the acting force of the separation control mechanism to force the photosensitive component or the developing component to move on the driving end and the non-driving end of the processing box.

Description

Processing box

Technical Field

The present utility model relates to a process cartridge.

Background

An image forming apparatus using an electrophotographic image forming process includes an image forming apparatus that forms an image by 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 such an image forming apparatus, the developing roller is urged toward the photosensitive drum at a predetermined pressure during the developing process, and is in contact with the surface of the photosensitive drum at the predetermined pressure.

In the case of using a developing roller (which includes an elastic layer on the surface), for example, the following can be considered. That is, if the period of time during which an image is not formed (the developing roller does not rotate) is long with the elastic layer kept in contact with the surface of the photosensitive drum, the elastic layer of the developing roller may be deformed by the contact with the surface of the photosensitive drum. Thus, an unexpected uneven image defect such as a developer image may occur when the developing process is performed.

Disclosure of Invention

According to an aspect of the present utility model, there is provided a process cartridge detachably mountable to an image forming apparatus having a tray for supporting and storing the process cartridge, the process cartridge having a driving end on a side thereof receiving a driving force of the image forming apparatus and a non-driving end on the other side thereof, comprising:

a drum unit on which a photosensitive member is mounted;

a developing unit on which a developing member is mounted;

a drum coupling member provided at one end of the drum unit for receiving a driving force from the image forming apparatus and transmitting to a photosensitive member;

the movable part is arranged on the driving end and/or the non-driving end of the processing box and can receive the acting force from the separation control mechanism and drive the photosensitive part or the developing part to move between the developing position and the interval position.

According to the utility model, the movable component which can receive the acting force from the separation control mechanism and drive the photosensitive component and the developing component to move is arranged at the driving end and/or the non-driving end of the processing box, so that the purpose of separating the drum roller is achieved.

In some embodiments, the drum unit further includes a connection member that is snap-connected with the driving end of the photosensitive member to transmit the driving force received by the drum coupling member to the photosensitive member, and the movable member of the driving end of the process cartridge is capable of being engaged with the connection portion.

In some embodiments, the connecting component is provided with a sliding groove and a clamping groove, the sliding groove and the clamping groove are arranged in a non-parallel manner, the drum connecting component is provided with a protrusion, the sliding groove is in sliding abutting connection with the protrusion, the photosensitive component is provided with a boss, and the clamping groove is in clamping connection with the boss.

In some embodiments, a movable member at the driving end of the process cartridge is provided with a lever for contacting the connecting portion of the photosensitive member, and the force from the separation control mechanism is transmitted to the connecting portion to force the connecting portion to move the photosensitive member between the developing position and the spaced position.

In some embodiments, a non-driving side bearing is provided on the non-driving end of the process cartridge, and a displacement hole is provided on the non-driving side bearing in an inclined manner, the displacement hole having a spaced position and a developing position, and a shaft of the non-driving end of the developing member is capable of being fitted with the non-driving end movable member through the displacement hole.

In some embodiments, the non-drive side bearing further has a stop bar thereon, the stop bar being disposed on a side of the non-drive side bearing remote from the drive end.

In some embodiments, a fixed plate is arranged on the movable part of the non-driving end, a mounting hole is arranged on the fixed plate, the mounting hole can be matched with the shaft of the non-driving end of the developing part penetrating through the displacement hole, and a limit column is further arranged on one side, facing the driving end, of the movable part of the non-driving end.

In some embodiments, when the movable component of the non-driving end receives the acting force from the separation control mechanism, the movable component can drive the developing component to move between the interval position of the displacement hole and the developing position through the mounting hole on the fixed plate, and when the developing component is positioned at the developing position, the limiting column is abutted with the limiting strip.

In some embodiments, the device further comprises a gasket having a hole capable of mating with the shaft of the non-drive end of the developing member, the gasket being disposed between the fixed plate and the displacement hole through the hole to prevent powder leakage of the developing member through the displacement hole.

Drawings

FIG. 1 is a cross-sectional view of an image forming apparatus;

fig. 2 is a perspective view of the memory element pressing unit and the cartridge pressing unit;

fig. 3 is a perspective view of the development separation control unit;

FIG. 4 is a perspective view of an image forming apparatus;

FIG. 5 is a front view of a separation control mechanism on the image forming apparatus;

fig. 6 is a perspective view of the process cartridge of embodiment 1 at the drive end;

FIG. 7 is a perspective view of the cartridge of example 1 at a non-drive end;

FIG. 8 is a cross-sectional view of the cartridge of example 1 at a non-drive end;

fig. 9 is an exploded perspective view of the process cartridge of embodiment 1 at the drive end;

fig. 10 is a perspective view of the process cartridge of embodiment 1 at the drive end;

FIG. 11 is an exploded perspective view of the drum unit at the drive end of embodiment 1;

FIG. 12 is a perspective view of the movable member of the driving end of embodiment 1;

fig. 13 is a perspective view of the process cartridge in the development state in embodiment 1;

fig. 14 is a sectional view of the process cartridge in the development state/contact state in embodiment 1;

fig. 15 is a sectional view of the process cartridge in embodiment 1 in a separated state;

fig. 16 is a view of the driving end of the process cartridge in embodiment 2;

fig. 17 is a view of the non-drive end of the process cartridge of embodiment 2;

fig. 18 is an exploded view of the non-drive end of the process cartridge of embodiment 2 in the installed order;

fig. 19 is a front view of a movable member of the process cartridge in embodiment 2;

FIG. 20 is a back view of a movable member of the process cartridge of embodiment 2;

FIG. 21 is a perspective view of a non-drive end bearing of the cartridge of example 2;

FIG. 22 is a view of the inside of the drive end when the drum roller of the process cartridge of example 2 is in contact;

fig. 23 is an internal view of the movable member of the process cartridge of embodiment 2 mated with the separation control member.

Detailed Description

The present utility model will now be described in further detail with reference to the accompanying drawings, wherein the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the above description, descriptions of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Example 1:

as shown in fig. 1 to 4, the image forming apparatus main assembly 170 is provided with four process cartridges 100 (100Y, 100M, 100C, 100K), namely, a first process cartridge 100Y, a second process cartridge 100M, a third process cartridge 100C, and a fourth process cartridge 100K. It is arranged substantially horizontally. The rotational driving forces are respectively supplied from the driving output portions of the image forming apparatus main assembly 170, and the image forming apparatus main assembly 170 supplies bias voltages (charging bias, developing bias, etc.) to the first to fourth process cartridges 100 (100Y, 100M, 100C, 100K), respectively. The process cartridge is mounted into the image forming apparatus main assembly by a tray 171. Specifically, the tray 171 is configured to be movable in a substantially horizontal direction (such as X1 and X2 directions of fig. 1) in a state in which the image forming apparatus main assembly 170 is mounted on a horizontal surface, and 4 process cartridges are respectively mounted to each positioning portion of the tray. When the tray 171 is moved into the image forming apparatus main assembly 170, the plurality of process cartridges 100 are moved together with the tray 171 into the image forming apparatus main assembly. When the process cartridges need to be replaced, a plurality of process cartridges may be moved together with the tray 171 to the outside of the image forming main assembly 170.

The image forming apparatus main assembly 170 is provided with a cartridge pressing mechanism, as shown in detail in fig. 2, including a memory element pressing unit 190 and a cartridge pressing unit 191, the memory element pressing unit 190 acting on the non-driving end of the process cartridge 100, and the cartridge pressing unit 191 acting on the driving end of the process cartridge 100. And an intermediate transfer unit 12.

The image forming apparatus is preferably a printer, and as shown in fig. 2, the storage element pressing unit 190 and the cartridge pressing unit 191 of the process cartridge are lowered in the direction of arrow Z2 by closing the front door 11 of the printer. The memory element pressing unit 190 mainly includes main assembly side electrical contacts (not shown) capable of making contact with electrical contacts of a memory element (not shown) provided in the process cartridge 100. The front door is interlocked by a link mechanism (not shown) so that the electrical contacts of the storage element and the main assembly side can be brought into and separated from each other.

As can be seen from fig. 4, at the driving end, the front door 11 is closed, and the main assembly side drum driving coupling 180 and the main assembly side developing driving coupling 185 for transmitting the driving force to the process cartridge are projected in the arrow Y1 direction by a link mechanism (not shown). Further, by opening the front door 11, the drum driving coupling 180 and the developing driving coupling 185 are retracted in the direction of arrow Y2. In so doing, it may be an aspect that the main assembly side drum driving coupling 180 and the main assembly side developing driving coupling 185 are better coupled with the photosensitive member coupling member and the developing coupling member of the process cartridge, respectively, to receive driving force. On the other hand, insertion/removal of the tray 171 is prevented from being obstructed.

The development separation control unit 195 (shown in fig. 2, 3) controls the spacing and contact operation of the developing unit with respect to the photosensitive member by engaging with a portion of the process cartridge 100. The development separation control unit 195 is disposed below the image forming apparatus main assembly 170. Specifically, the development separation control unit 195 is arranged in the vertical direction below the development coupling portion 132 and the drum coupling member 143 (below in the arrow Z2 direction), and the development separation control unit 195 includes a development separation control unit 195R at the drive end and a development separation control unit 195L at the non-drive end. The development separation control unit 195 includes a separation control member 196, i.e., a development separation control member 196R at the drive end and a development separation control member 196L at the non-drive end, the separation control members 196R and 196L being configured to be movable in the W41 and W42 directions by a control mechanism (not shown). The directions W41 and W42 are substantially parallel to the arrangement direction of the process cartridges provided in the image forming apparatus main assembly 170.

Fig. 6 is a perspective view of the process cartridge 100 at the drive end. Fig. 7 is a perspective view of the process cartridge 100 at a non-drive end. Fig. 8 is a cross-sectional view of the process cartridge 100 at a non-drive end.

As shown in fig. 2, 3, 5, 6, and 7, in order for the development separation control unit 195 to engage with a portion of the process cartridge and control the separation/contact operation of the developing unit of the process cartridge with the drum unit, a portion of the development control unit 196 and a portion of the developing unit of the process cartridge must overlap in the vertical direction (Z1, Z2 direction). Therefore, after the process cartridge 100 is inserted in the X1 direction, a portion of the process cartridge developing unit (second unit) needs to protrude in the vertical direction (Z1, Z2 direction).

By closing the printer front door, the cartridge pressing unit 190/191 presses the movable member 152 (152L/152R), and the protruding portion of the movable member 152 protrudes the second unit (developing unit) in the vertical direction (Z1, Z2 direction). And cooperates with the movable development separation control unit 195 to thereby achieve relative contact (contact position) or spacing (spacing position, retracted position) of the photosensitive member of the drum unit (first unit) and the developing member of the developing unit (second unit).

As shown in fig. 5 to 8, in the present embodiment, at the drive end, the developing member 106 may be in contact with the photosensitive member 104 or may be separated, while at the non-drive end, the developing member 106 is always in contact with the photosensitive member 104. After the printer receives the working instruction, the developing part 106 at the driving end is contacted with the photosensitive part 104 to realize the developing work; when the working order is completed, the photosensitive member 104 at the driving end is separated from the developing member 106 by the external force, and development is not realized. While the movable member 152L at the non-drive end may or may not be provided.

In the present embodiment, the movable member 152R at the driving end is provided with the lever 152Rc, the photosensitive member 104 and the drum coupling member 143 are provided to be connected separately by the connecting member 160, and the movable member 152R is configured to separate the photosensitive member 104 from the developing member 106 by receiving the force from the separation control mechanism 196R, and by the lever 152Rc acting on the connecting member 160 to thereby force the photosensitive member 104 to move.

In summary, the principle of operation of the process cartridge 100 at the drive end will be described with an emphasis.

Fig. 9 is an exploded perspective view of the process cartridge of the present embodiment at the drive end. Fig. 10 is a perspective view of the process cartridge of the present embodiment at the drive end. Fig. 11 is an exploded perspective view of the drum unit of the present embodiment at the driving end. Fig. 12 is a perspective view of the movable member of the driving end of the present embodiment. Fig. 13 is a perspective view of the process cartridge of the present embodiment in a developed state. Fig. 14 is a sectional view of the process cartridge of the present embodiment in a developing state/contact state. Fig. 15 is a sectional view of the process cartridge of the present embodiment in a separated state.

As shown in fig. 9 to 15, the process cartridge 100 includes a drive-end cap 116, a drum unit 108, a developing unit 109, and a non-drive-end cap 117. The drum unit 108 is provided with a photosensitive member 104, a drum coupling member 143, and a connecting member 160; the developing unit 109 is provided with a developing member 106, a driving end movable member 152R, and a developing coupling member 132.

Further, a driving lever 152Rc is further disposed on the driving end movable member 152R, and is fixedly connected with the driving end movable member 152R, and the driving end is provided with a protrusion in the Z2 direction of the movable member 152R, and the protrusion is provided with a first end face 152Ra and a second end face 152Rb, which are disposed opposite to each other.

The photosensitive member 104 and the drum coupling member 143 on the drum unit 108 are connected separately by the connecting member 160, that is, the connecting member 160 is provided between the photosensitive member 104 and the drum coupling member 143, the connecting member 160 is provided with a slide groove 160a and an engagement groove 160b, the slide groove 160a is provided in non-parallel with the engagement groove 160b, the slide groove 160a is slidably abutted against the projection 143a on the drum coupling member 143, and the engagement groove 160b is engaged with the boss 104a of the photosensitive member 104.

Further, since the end face 143b of the drum coupling member 143 is pressed by the end face 116a of the driving end cap member 116 under the external force of the connecting member 160, the connecting member 160 slides in the chute and is deviated from the drum coupling member 143, but since the connecting member 160 is engaged with the photosensitive member 104, the photosensitive member 104 slides together with the connecting member 160.

The drum unit 108 and the developing unit 109 are rotatably connected through the rotation center K of the developing coupling member 132, and are swingable with each other. That is, when the developing unit 109 is stationary, that is, the developing unit 109 is fixed in the tray, and the drum unit 108 is not forced, contact of the photosensitive member 104 and the developing member 106 is achieved. When the drum unit 108 is forced, the photosensitive member 104 and the developing member 106 are naturally separated.

As shown in fig. 5, the drive end separation control mechanism 196R has a forward drive force stage 196Ra with a forward drive force surface on the forward drive force stage 196Ra that can be brought into contact with the forward drive force receiving surface 152Ra on the drive end movable member 152R, and a reverse drive force stage 196Rb with a reverse drive force surface on the reverse drive force stage 196Rb that can be brought into contact with the reverse drive force receiving surface 152Rb on the drive end movable member 152R.

The forward direction here provides the image forming apparatus with a force in the W42 direction that can move the developing member 106 and/or the photosensitive member 104 to the developing position, whereas the image forming apparatus is provided with a force in the W41 direction that can bring the developing member 106 and/or the photosensitive member 104 to the spaced position.

As shown in fig. 13 to 15, in the embodiment, when the printer receives the operation command, the driving force of the drum coupling member 143 and the first end surface 152Ra of the protruding portion of the driving end movable member 152R are pushed from the separation control mechanism 196R to the W42, and the lever 152Rc on the driving end movable member 152R is located on the obliquely upper side of the photosensitive member 104 and does not contact the connecting member 160, so that the photosensitive member 104 contacts the developing member 106, thereby realizing the developing operation.

When the working instruction of the printer is completed, the second end face 152Rb of the protruding portion of the driving end movable member 152R receives the pushing force from the reverse driving force table 196Rb on the driving end separation control mechanism 196R to W41, the driving lever 152Rc abuts against the connecting member 160, and slides the connecting member 160 in a direction away from the developing member 106 under the pushing force, so as to drive the photosensitive member 104 to slide together, at this time, the drum coupling member 143 does not slide under the pressure on the driving end cap member 116, the photosensitive member 104 is separated from the developing member 106, and the developing operation is completed.

By providing the lever 152Rc on the driving end movable member 152R on the process cartridge 100, the photosensitive member 104 is forced to move by the action of the lever 152Rc on the connecting member 160, thereby performing contact and separation of the developing member 106 and the photosensitive member 104, and developing operation of the process cartridge in the image forming apparatus is achieved.

Example 2:

as shown in fig. 16 and 17, the developing member 106 is provided on a developing unit, the photosensitive member 104 is provided on a drum unit, the developing unit and the drum unit can be separated/contacted, and further, when the developing member 106 is separated/contacted from the photosensitive member 104, the developing member 106 is at a spaced position, and when the developing member 106 is contacted, the developing member 106 is at a developing position, in this embodiment, a movable member 152L is provided at the non-driving end, and when the printer receives an operation instruction, the movable member 152L at the non-driving end forces the developing member 106 to be contacted with the photosensitive member 104, and the developing member 106 is at the developing position, thereby realizing a developing operation; when the working order is completed, the movable member 152L at the non-driving end drives the developing member 106 to be separated from the photosensitive member 104, and the developing member 106 is at the spaced position.

The present embodiment achieves contact and separation of the photosensitive member 104 and the developing member 106 by providing a movable member 152L connected to the developing member 106 at the non-drive end of the process cartridge 100 to drive the developing member 106 to move back and forth between the developing position and the spaced position.

In summary, the principle of operation of the process cartridge 100 at the non-drive end will be described with an emphasis. As shown in fig. 18 to 21, the process cartridge 100 has a non-driving side bearing non-driving side cover 12727, a non-driving side cover 117, and a non-driving end movable member 152L on the non-driving side bearing non-driving side cover 127, a displacement hole 127a and a stopper piece 127b on the non-driving end movable member 152L, a forward driving force receiving surface 152La, a reverse driving force receiving surface 152Lb, and a fixed plate 152Lc, a mounting hole 152Ld on the fixed plate 152Lc to be connected to the developing member, and a gasket 128 between the fixed plate 152Lc on the non-driving end movable member 152L and the displacement hole 127a on the non-driving side bearing 127, the gasket 128 also has a hole corresponding to the mounting hole 152Ld, and the gasket 128 has a size similar to that of the fixed plate 152Lc and is capable of blocking the displacement hole 127a on the non-driving side bearing 127. The non-drive end movable member 152L is further provided with a fixed plate 152Lc integrally connected with the movable member 152L, and the movable member 152L is provided with a projection in the Z2 direction, on which a first end face 152La and a second end face 152Lb are provided, the two end faces being disposed opposite each other, and the movable member 152L is further provided with a stopper post 152Le disposed on a face facing the side of the drive end when the non-drive end movable member 152L is mounted on the non-drive side bearing 127.

The displacement hole 127a on the non-driving side protecting cover 127 is obliquely arranged on the non-driving side protecting cover 127, and is provided with a first position 127a1 and a second position 127a2 which are respectively corresponding to the developing part at a spacing position and a developing position; the displacement hole 127a is used for installing the non-driving end of the developing component 106, the height of the non-driving end along the Z1-Z2 direction is the same as the diameter of the non-driving end of the shaft of the developing component 106, but the length of the non-driving end along the Y1-Y2 direction is larger than the diameter of the shaft of the developing component 106, so that the non-driving end of the developing component 106 can move between a first position 127a1 and a second position 127a2, namely the developing component 106 can move back and forth between a spacing position and a developing position; the mounting hole 152Ld of the fixing plate 152Lc of the movable member 152L is for fixedly mounting the non-driving end of the developing member 106, that is, the non-driving end of the developing member 106 is inserted through the displacement hole 127a of the non-driving side protecting cover 127, and is mounted on the mounting hole 152Ld of the non-driving end movable member 152L, which allows the non-driving end movable member 152L to move between the first position 127a1 and the second position 127a2 of the displacement hole 127a when the non-driving end movable member 152L is rotatably moved about the shaft of the non-driving side bearing 127, so that the developing member 106 is brought into and out of contact with the photosensitive member 104, and the surface of the fixing plate 152Lc, which is in contact with the movement hole 127a of the non-driving side bearing 127, has a gasket 128 for sealing the displacement hole 127a mounted on the non-driving end of the developing member 106 from powder leakage. In particular embodiments, the gasket 128 may be a sponge, a rubber mat, or the like, without limitation.

The non-driving side protecting cover 127 is further provided with a rib-shaped limit bar 127b obliquely arranged on one side far away from the driving end when the non-driving side protecting cover 127 is arranged on the processing box 100, the limit column 152Le arranged on the non-driving side movable part 152L can be in abutting fit, when the non-driving side movable part 152L rotates around a shaft on the non-driving side bearing to move, the developing part 106 is driven to move back and forth between the first position 127a1 and the second position 127a2 of the displacement hole 127a, when the non-driving end of the developing part 106 is moved to the second position 127a2, the limit column 152Le on the non-driving side movable part 152L is abutted with the limit bar 127b on the non-driving side protecting cover 127, the possibility that the non-driving side movable part 152L rotates further is prevented, the limiting effect is achieved, and the developing part 106 is prevented from being too close to the photosensitive part 104, and interference occurs.

As shown in fig. 5 and 22 to 23, the non-drive end separation control mechanism 196L has a forward drive force stage 196La, the forward drive force stage 196La having a forward drive force surface that can be brought into contact with the forward drive force receiving surface 152La on the non-drive end movable member 152L, and a reverse drive force stage 196Lb, the reverse drive force stage 196Lb having a reverse drive force surface that can be brought into contact with the reverse drive force receiving surface 152Lb on the non-drive end movable member 152L.

The forward direction here is a force in the W42 direction provided for the image forming apparatus capable of moving the developing unit toward the drum unit, the developing member 106 from the first position 127a1 to the second position 127a2, whereas the forward direction is a force in the W41 direction provided for the image forming apparatus capable of separating the developing unit from the drum unit, the developing member 106 from the second position 127a2 to the first position 127a 1.

Referring to fig. 22 and 23, in the embodiment, when the process cartridge 100 is mounted on the image forming apparatus and the front door 11 is closed, and the process cartridge 100 is not yet operated, the developing unit 109 and the drum unit 108 are in a separated state, and at this time, the non-driving end of the shaft of the developing member 106 is located at the first position 127a1 in the displacement hole 163, that is, the developing member 106 is located at the spaced position, and when the process cartridge 100 requires the developing unit 109 to contact the drum unit 108, and starts to operate, the non-driving end separation control mechanism 196L on the image forming apparatus applies a force in the W42 direction, which is called a forward driving force, the non-driving end separation control mechanism 196L transmits the forward driving force to the forward driving force receiving surface 152La on the non-driving end movable member 152L in contact with the forward driving force surface through the forward driving force table 196La, that is, the separation control mechanism 196L moves in the direction W42 by the forward driving force to drive the lower end portion of the driving force coupling member 152L in the direction Z1-Z2 to move in the direction W41 toward the driving force receiving surface 152La, at which time the upper end portion of the non-driving end movable member 152L starts to rotate about the shaft of the non-driving side protecting cover 127, the shaft of the developing member 106 is driven by the mounting hole 152Ld of the fixing plate 152Lc from the first position 127a1 to the second position 127a2 of the displacement hole 127a, when the shaft of the developing member 106 moves to the second position 127a2, the movement is stopped, at which time the limit post 152Le of the non-driving end movable member 152L abuts against the limit bar 127b of the non-driving side protecting cover 127, the developing unit movement is completed, at which time the developing member 106 contacts the photosensitive member 104, the developing member 106 is in the developing position, and when the process cartridge 100 is finished in use, the process cartridge 100 requires the developing unit 108 to be separated from the drum unit 109, the non-drive end separation control mechanism 196L of the image forming apparatus applies a force along the direction W41, which is called reverse drive force, and the non-drive end separation control mechanism 196L transmits the force to the reverse drive force receiving surface 152Lb of the non-drive end movable member 152L in contact with the reverse drive force surface through the reverse drive force surface of the reverse drive force table 196Lb, that is, the non-drive end separation control mechanism 196L moves along the direction W41 under the action of the reverse drive force, and drives the lower end portion of the non-drive end movable member 152L in the direction Z1-Z2 to move along the direction W41, at this time, the upper end portion of the non-drive end movable member 152L starts to rotate counterclockwise about the shaft of the non-drive side protecting cover 127, and drives the shaft of the developing member 106 to move from the second position 127a2 of the displacement hole 127a to the first position 127a1 through the mounting hole 152Ld of the fixing plate 152Lc, and when the developing member 106 moves to the first position 127a1, the movement stops, the lower end portion of the non-drive end movable member 152L moves along the direction W41, at this time, the upper end portion of the non-drive end movable member 152L starts to move counterclockwise around the shaft of the non-drive end movable member 152L, and the shaft of the non-drive end movable member 152L moves away from the developing member 106, and the developing member 106 is separated from the photosensitive member 106.

Otherwise, the rest is the same as in example 1.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (9)

1. A process cartridge detachably mountable to an image forming apparatus having a tray for supporting storage of the process cartridge and a separation control mechanism, the process cartridge having a driving end on one side thereof receiving a driving force of the image forming apparatus and a non-driving end on the other side thereof, comprising:

a drum unit on which a photosensitive member is mounted;

a developing unit on which a developing member is mounted;

a drum coupling member provided at one end of the drum unit for receiving a driving force from the image forming apparatus and transmitting to a photosensitive member;

the movable part is arranged on the driving end and/or the non-driving end of the processing box and can receive the acting force from the separation control mechanism and drive the photosensitive part or the developing part to move between the developing position and the interval position.

2. A process cartridge according to claim 1, wherein said drum unit further includes a connecting member which is snap-connected with a driving end of said photosensitive member to transmit the driving force received by said drum coupling member to the photosensitive member, and a movable member of a driving end of said process cartridge is engageable with said connecting portion.

3. A process cartridge according to claim 2, wherein said connecting member is provided with a slide groove and a click groove, said slide groove and said click groove are provided in nonparallel, said drum coupling member is provided with a projection, said slide groove is slidably abutted with the projection, said photosensitive member is provided with a boss, and said click groove is click-connected with the boss.

4. A process cartridge according to claim 2, wherein a movable member of said process cartridge driving end is provided with a lever for contacting with said connecting portion of said photosensitive member, and wherein a force from said separation control mechanism is transmitted to said connecting portion to force said connecting portion to move said photosensitive member between said developing position and said spaced position.

5. A process cartridge according to claim 1, wherein a non-drive side bearing is provided on a non-drive end of said process cartridge, said non-drive side bearing being provided with a displacement hole in an inclined manner, said displacement hole having a spaced position and a development position, and a shaft of a non-drive end of said development member being capable of being fitted with said non-drive end movable member through said displacement hole.

6. A process cartridge according to claim 5, wherein said non-drive side bearing further has a stopper provided thereon, said stopper being provided on a side of said non-drive side bearing remote from said drive end.

7. A process cartridge according to claim 6, wherein a fixed plate is provided on the movable member of said non-drive end, a mounting hole is provided on said fixed plate, said mounting hole is capable of being fitted with a shaft of said non-drive end of said developing member penetrating said displacement hole, and a side of the movable member of said non-drive end facing said drive end is further provided with a stopper post.

8. A process cartridge according to claim 7, wherein said movable member of said non-drive end is capable of driving said developing member to move between a spaced position of said displacement hole and a developing position through a mounting hole in said fixed plate upon receiving a force from said separation control mechanism, and said stopper post abuts against said stopper bar when said developing member is in said developing position.

9. A process cartridge according to claim 8, further comprising a seal having a hole capable of engaging with the shaft of said non-driving end of said developing member, said seal being disposed between said fixing plate and said displacement hole through said hole to prevent said developing member from displacing the hole through said displacement Kong Loufen.