CN107885069A - Image processing system and handle box - Google Patents

Abstract

The present invention provides a kind of image processing system, including main body, and the handle box being detachably mounted in main body, and guide rail is additionally provided with main body, and guide rail is used to install the handle box, guide rail and the movable connection of main body；Be additionally provided with pushing mechanism in main body, pushing mechanism can promote the handle box activity on guide rail, or push rail activity and make handle box movable.

Description

Image forming device and process cartridge

technical field

The present application relates to the technical field of imaging devices, in particular to an image forming device and a process box.

Background technique

An image forming device is a device that forms an image on a recording material by electrophotographic image processing technology, such as electrophotographic copying, laser printers, electrophotographic printers, facsimile machines, word processors, and the like. Image forming devices generally include monochrome image forming devices and color image forming devices.

The existing image forming device includes a main body and a process box detachably installed in the main body. The process cartridge generally includes a developing unit provided with a developing member and a photosensitive unit provided with a photosensitive member. For a contact developing process cartridge, the surface of the developing member is usually provided with a layer of rubber. When the image forming apparatus operates, the rubber layer of the developing member contacts the photosensitive member, thereby transferring the developer in the developing unit to the photosensitive unit.

In order to ensure the development quality of the process cartridge, there is usually a certain pressure between the developing part and the photosensitive part. The layer may be deformed, affecting the development quality of the process cartridge.

Contents of the invention

The present invention provides an image forming device and a process cartridge to prevent the development quality of the process cartridge from being deformed due to deformation of the developing part of the process cartridge installed in the main body of the image forming device.

The image forming device provided by the present application, the image forming device is provided with:

a first guide rail, the first guide rail is fixedly arranged on the inner wall of the main body of the image forming device;

a second guide rail, the second guide rail is movably connected to the inner wall of the main body of the image forming device, and the second guide rail is provided with a movable part;

a process cartridge detachably installed in the main body of the image forming apparatus, the process cartridge includes a photosensitive unit and a developing unit, the photosensitive unit is installed on the first guide rail, and the developing unit is installed on the movable part of the second guide rail , the photosensitive unit is provided with a photosensitive component, and the developing unit is provided with a developing component;

The movable portion of the second rail is rotatably movable between a first position in which the photosensitive member remains separated from the developing member and a second position in which the photosensitive member remains separated from the developing member. a member in contact with said developing member;

The image forming device is further provided with a pushing member, and the developing unit is further provided with a pushed portion;

When the pushing member is not pushing the pushed part of the developing unit, the movable part of the second guide rail is at the first position.

In the process cartridge provided by the present application, the process cartridge is a process cartridge included in any one of the above-mentioned image forming apparatuses.

The technical solution provided by the application can achieve the following beneficial effects:

By moving the developing unit of the process cartridge, when the image forming device is not working, the developing part of the developing unit is not in contact with the photosensitive part of the photosensitive unit, thereby preventing the developing part from being deformed by the photosensitive part for a long time, thereby affecting the processing The development quality of the cartridge.

Description of drawings

Fig. 1 shows the structural representation of the processing box involved in Embodiment 1;

FIG. 2 is a schematic structural diagram of an image forming device involved in Embodiment 1;

FIG. 3 is a schematic diagram of the position of the developing unit involved in Embodiment 1;

FIG. 4 is a schematic diagram of the position of the developing unit involved in Embodiment 1;

Figure 5 is a schematic structural view of the process box involved in the second embodiment;

Figure 6 is a schematic diagram of the position of the developing unit involved in the second embodiment;

Figure 7 is a schematic diagram of the position of the developing unit involved in the second embodiment;

Detailed ways

Embodiment one

The present embodiment provides an image forming apparatus in which a developing unit and a photosensitive unit of a process cartridge installed in a main body of the image forming apparatus are brought into contact with each other when the image forming apparatus is in operation, and are separated from each other when the image forming apparatus is stopped.

As shown in FIGS. 1 and 2, the process cartridge includes a photosensitive unit 100 and a developing unit 200 that are separated from each other. The photosensitive unit 100 includes a first casing 101 and a photosensitive component 102 rotatably arranged in the first casing 101, and a first power receiving unit is provided on one end of the first casing 101 along the rotation axis direction of the photosensitive component 102. Part 103, the first power receiving part 103 is used to engage with the first rotating part 10 provided on the inner wall of the main body 1 of the image forming apparatus; The developing unit 202 inside 201 is further provided with a second power receiving unit 204 at one end of the second casing 201 along the direction of the rotation axis of the developing unit 202, and the second power receiving unit 204 is used to communicate with the main body 1 of the image forming apparatus. The second rotating member 20 on the inner wall of the second housing 201 is engaged with, and a guide portion is provided at the end of the second housing 201 in the length direction for guiding the development unit 200 to be installed in the main body 1 of the image forming apparatus. In this embodiment, Preferably, the guide part includes a first guide post 206 and a second guide post 207 .

When the image forming apparatus operates, a motor (not shown) provided in the main body 1 of the image forming apparatus drives the first rotating member 10 and the second rotating member 20 to rotate, thereby transmitting the rotational force to the photosensitive member 102 and the developing member. 202 , rotating the photosensitive member 102 and the developing member 202 . During this process, an optical device (not shown) provided in the main body 1 of the image forming apparatus forms an electrostatic latent image on the surface of the rotating photosensitive member 102; The developer (not shown) on the surface of the rubber layer is transferred to the surface of the photosensitive member 102, and the electrostatic latent image on the surface of the photosensitive member 102 is developed to form a visible developer image. The transfer roller in the main body 1 transfers to the recording medium, and is fixed by the fixing roller.

Guide rails are also provided on two opposite inner walls of the main body 1 of the image forming apparatus. This embodiment only uses the guide rails on one inner wall as an example for illustration, and the guide rails on the other inner wall may refer to the following description. As shown in FIG. 2 , a first guide rail 12 for installing the photosensitive unit 100 and a second guide rail 13 for installing the developing unit 200 are provided on the inner wall (not shown) of the main body 1 of the image forming apparatus. When it is necessary to install the developing unit 200 (along the direction Y) and the photosensitive unit 100 (along the direction X) into the main body 1 of the image forming apparatus, open the door cover 2 of the image forming apparatus, and place the photosensitive unit 100 along the first guide rail 12 Installed in the main body 1 of the image forming apparatus, and make the first rotating member 10 protrude and engage with the first power receiving member 103; after that, the developing unit 200 is installed in the main body 1 of the image forming apparatus along the second guide rail 13, The first guide column 206 and the second guide column 207 provided on the end of the second housing 201 are supported on the second guide rail 13 and slide along the guide groove 131 of the second guide rail 13, so that the developing unit 200 moves along the second guide rail 13. The guide rail 13 slides to the bottom of the second guide rail 13 , and locks the first guide post 206 through the locking device 14 , so that the relative position of the developing unit 200 and the second guide rail 13 in the installation direction of the developing unit is fixed. And, the distance between the upper locating surface 82 and the lower locating surface 81 of the guide groove 131 of the second guide rail 13 is substantially the same as the diameter of the second guide post 207, therefore, the upper locating surface 82 and the lower locating surface 81 can prevent from being located in the guide. The second guide column 207 in the groove 131 swings around the first guide column 206, that is, prevents the developing unit 200 from swinging around the first guide column 206, so that the developing unit 200 and the second guide rail 13 are relatively fixed in the circumferential direction of the developing unit 200 . Through the above fixing method, the relative position of the developing unit 200 and the second guide rail 13 is fixed.

In this embodiment, by setting the second guide rail 13 as a movable structure, and setting a push member in the main body 1 of the image forming apparatus to push the second guide rail 13 to move, or to push the developing unit installed on the second guide rail 13 to move , so that the developing member 202 of the developing unit 200 is in contact with or separated from the photosensitive member 102 of the photosensitive unit 100 .

Hereinafter, the present embodiment will be described by taking the pushing member pushing the developing unit 200 to make the developing member 202 of the developing unit 200 contact and separate from the photosensitive member 102 of the photosensitive unit 100 as an example.

As shown in FIG. 2 , the first guide rail 12 is fixedly disposed on the inner wall of the main body 1 of the image forming apparatus, and the second guide rail is movably connected with the inner wall of the main body 1 of the image forming apparatus. Preferably, the second guide rail 13 is divided into a fixed part 7 and a movable part 8 , and the movable part 8 is located downstream of the fixed part 7 along the installation direction of the developing unit 200 . The fixed part 7 of the second guide rail 13 is fixedly connected with the inner wall of the main body 1 of the image forming device, and the movable part 8 is rotatably connected with the first supporting shaft 6 on the inner wall of the main body 1 of the image forming device; The inner wall is also provided with a first elastic part and a limiting part 11, and the first elastic part exerts an elastic force on the movable part 8 of the second guide rail 13, so that the movable part 8 of the second guide rail 13 rotates around the first supporting shaft 6 To the position of abutting against the limiting part 11, at this time, the developing part 202 of the developing unit 200 installed on the movable part 8 of the second guide rail 13 is separated from the photosensitive part 102 of the photosensitive unit 100, and the movable part 8 is in the first position , the developing unit 200 is in the separated position. Specifically, the first elastic member is a tension spring 9, one end of the tension spring 9 is fixed on the main body 1 of the image forming apparatus, and the other end is connected with the movable part 8 of the second guide rail 13, so that the movable part 8 of the second guide rail 13 is wound around Rotate clockwise to the first position along with the first support shaft 6 .

As shown in FIG. 2 and FIG. 3 , the pushing member is a push rod 4 , and the push rod 4 extends in the P direction or retracts in the reverse direction of the P direction by receiving the driving force from the motor in the main body 1 of the image forming apparatus. Specifically, a rack 42 is provided on the upper surface of the push rod, and the rack 42 meshes with the gear 5 disposed in the main body 1 of the image forming apparatus. By controlling the rotation direction of the gear 5 , the moving direction of the push rod 4 is further controlled. Of course, other ways can also be used to control the movement of the push rod 4, for example, controlling the extension and contraction of the push rod by controlling the rotation of the cam. One end of the push rod 4 along the extending direction (P direction) is provided with a pushing part 41, and a pushed part 203 is provided on the second casing 201 of the developing unit 200. The pushed part 203 of the developing unit 200 in the separated position is connected to the The pushing part 41 of the push rod 4 is opposite. When the image forming device starts developing, as shown in FIG. The developing unit 200 moves to a position where the developing member 202 of the developing unit 200 is in contact with the photosensitive member 102 of the photosensitive unit 100. At this time, the second power receiving member 204 of the developing unit 200 contacts the second power receiving member 204 provided in the main body 1 of the image forming apparatus. The rotating component 20 is engaged, and the movable part 8 of the second guide rail 13 is also driven by the developing unit 200 to rotate around the first supporting shaft 6 to the second position.

After the image forming device stops working, the image forming device controls the reverse movement of the push rod 4 along the P direction, and the pushing part 41 of the push rod 4 has no effect on the pushed part 203 of the developing unit 200, and the second push rod in the second position The guide rail 13 rotates clockwise around the first support shaft 6 to the first position under the action of the tension spring 9 , so that the developing unit 202 of the developing unit 200 is separated from the photosensitive unit 102 of the photosensitive unit 100 .

In order to prevent the push rod 4 from protruding too long or not extending enough in the P direction due to errors, the force between the developing member 202 and the photosensitive member 102 in contact with each other is too large or too small, which affects the development quality of the process cartridge. The contact mode between the pushing part 41 of the push rod 4 and the pushed part 203 of the second housing 201 is set as elastic contact. Preferably, the pushed part 203 is elastically connected to the second casing 201, that is, a second elastic member is provided between the pushed part 203 and the second casing 201, and when the pushed part 203 is acted by the pushing part 41 When the pushed part 203 moves relative to the second housing 201, the pushed part 203 compresses the second elastic member, and when the force of the pushing part 41 on the pushed part 203 disappears, the second elastic part pushes the pushed part 203 to move to original position. In this embodiment, the pushed part 203 is rotatably supported on the second support shaft 208 of the second casing 201, and the second elastic member arranged between the pushed part 203 and the second casing 201 is a spring 209, and the spring One end of 209 abuts against the pushed portion 203 , and the other end abuts against the second housing 201 . When the push rod 4 protrudes too long or not enough in the P direction, the force between the developing unit 202 and the photosensitive unit 102 is kept basically stable through the buffering effect of the spring 209 .

Certainly, the pushing part 41 of the push rod and the push rod 4 can also be arranged as an elastic connection, or the material of the pushing part 41 of the push rod 4 or the pushed part 203 of the second housing 201 can be directly set as an elastic material, to solve the above problems.

In addition, the farthest distance between the first guide post 206 and the second guide post 207 disposed at one end of the second housing 201 is substantially equal to the length of the guide groove 131 of the second guide rail 13 . After the push rod 4 pushes the developing unit 200 to move to the contact position, as shown in FIG. The surface 71 is in contact with the second guide post 207 at the same time, preventing the developing unit 200 at the contacting position from moving in the guide slot 131 along the removal direction, thereby further fixing the developing unit 200 .

Embodiment two

The present embodiment provides an image forming apparatus in which the developing unit 200 and the photosensitive unit 100 of the process cartridge installed in the main body 1 of the image forming apparatus are brought into contact with each other when the image forming apparatus is in operation, and are separated from each other when the image forming apparatus is stopped. .

In this embodiment, the structure of the guide rail and the push rod is basically the same as that of Embodiment 1, the difference is that, as shown in FIG. Rotate around the third support shaft 213, and rotate to the isolation position (position shown in Figure 5) under the action of the third elastic member. In this embodiment, the third elastic member is a torsion spring 211, and the torsion spring 211 One end abuts against the isolation member 212 , and the other end abuts against the second housing 201 . During the process of installing the developing unit 200 on the second guide rail 13, the spacer 212 on the second casing 201 abuts against the pressure receiving part 104 of the first casing 101 of the photosensitive unit 100, so that the second casing 201 There is an active force between the first casing 101, and the active force acts on the movable part 8 of the second guide rail 13 through the developing unit 200, so that the movable part 8 rotates to the first position, so that the developing unit 202 and the photosensitive unit 102 maintain a separated state, and the developing unit 200 is in a separated position.

When the image forming device starts to work, the push rod 4 is stretched out, and a force is applied to the pushed part 203, so that the force between the developing unit 200 and the photosensitive unit 100 is increased, and the spacer 212 is received by the developing unit 200 and the photosensitive unit. 100 to rotate around the third support shaft 213, so that the developing unit 200 swings counterclockwise around the first support shaft 6 toward the photosensitive unit 100 until the developing part 202 of the developing unit 200 and the photosensitive unit 100 The photosensitive member 102 is in contact, and the developing unit 200 is in the contact position.

When the image forming apparatus stops working, as shown in FIG. 6 , the force exerted by the push rod 4 on the pushed portion 203 decreases, so that the force between the developing unit 200 and the photosensitive unit 100 also decreases, so that the spacer 212 Rotating counterclockwise around the third support shaft 213 pushes the developing unit 200 to move away from the photosensitive unit 100 to separate the developing unit 202 from the photosensitive unit 102 .

In this embodiment, the second guide rail 13 can be pulled to the first position without setting the extension spring 9, but the second guide rail 13 is automatically in the first position without external force by the self-weight of the second guide rail 13, thereby This enables the developing unit 200 to be mounted on the second rail 13 . Or, as shown in Figure 7, the movable part 8 of the second guide rail 13 is positioned at the part above the guide groove 131 and the side opposite to the fixed part 7 is an inclined sliding surface 83, by limiting the rotation angle of the movable part 8, the movable part 8 does not When in the first position (that is, when the part of the guide groove 131 located in the fixed part 7 does not overlap with the part of the guide groove 131 located in the movable part 8), along the installation direction of the developing unit 200, the inclined sliding surface 83 and the guide groove 131 are located Parts within the fixed portion 7 overlap. In this way, during the process of installing the developing unit 200 into the main body 1 of the image forming apparatus, if the movable part 8 is not in the first position, the first guide post 206 arranged at the end of the second casing 201 will slide with the oblique Surface 83 contacts, and exerts a force on the inclined sliding surface 83, so that the movable part 8 rotates clockwise around the first support shaft 6 to the first position, so that the first guide post 206 enters the guide of the movable part 8 Inside the groove 131. Certainly, if the movable part 8 is not in the first position before the second guide post 207 enters the guide groove 131 of the movable part 8, the action process of the second guide post 207 on the inclined sliding surface 83 is the same as that of the first guide post 206. The process is similar and will not be repeated here.

Of course, in the second embodiment, the spacer 212 can also abut against the main body 1 of the image forming apparatus, or the spacer is arranged on the photosensitive unit 100 or the main body 1 of the image forming apparatus, and abuts against the developing unit 200 . The details may be determined according to the specific structures of the main body 1 and the process cartridge of the image forming apparatus, which are not limited in this embodiment.

Of course, in the above two embodiments, the push rod 4 can also directly act on the second guide rail 13 so that the second guide rail 13 drives the developing unit 200 to move. In addition, in the present application, the second guide rail 13 can also be fixed, and the first guide rail can move relative to the main body 1 of the pattern forming device, and then the developing unit 202 of the developing unit 200 can be brought into contact with the photosensitive unit 102 of the photosensitive unit 100 by moving the photosensitive unit 100 and separation. Alternatively, the movable part 8 of the second guide rail 13 can also move the developing unit 200 in translation, so that the developing unit 202 of the developing unit 200 contacts and separates from the photosensitive unit 102 of the photosensitive unit 100 .

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (16)

1. a kind of image processing system, it is characterised in that described image forming apparatus is provided with：

First guide rail, on the inwall for the main body that first guide rail is fixedly installed on described image forming apparatus；

Second guide rail, second guide rail and the mobilizable connection of inwall of the main body of described image forming apparatus, described second Guide rail is provided with movable part；

The handle box being removably mounted in the main body of described image forming apparatus, the handle box include photosensitive unit and shown Shadow unit, the photosensitive unit are arranged on the first guide rail, and the developing cell is arranged on the movable part of the second guide rail, the sense Light unit is provided with photosensitive-member, and the developing cell is provided with developing parts；

The movable part of second guide rail rotatably moves between the first position and the second position, at first position, The photosensitive-member keeps separating with the developing parts, and at the second place, the photosensitive-member connects with the developing parts Touch；

Described image forming apparatus is additionally provided with pushing mechanism, and the developing cell is additionally provided with pushed part；

When the pushing mechanism does not promote the pushed part of the developing cell, the movable part of second guide rail is in the One position.

2. image processing system as claimed in claim 1, it is characterised in that the pushing mechanism is a push rod, the push rod One end be provided with pushing part, the pushing part abuts with the pushed part of the developing cell and promotes the aobvious of the developing cell Shadow part contacts with the photosensitive-member of the photosensitive unit.

3. image processing system as claimed in claim 2, it is characterised in that on the inwall of the main body of described image forming apparatus Extension spring is additionally provided with, one end of the extension spring is fixed in the main body of image processing system, the other end of the extension spring and described the The movable part connection of two guide rails；When the pushing mechanism does not promote the pushed part of the developing cell, the extension spring makes The movable part of second guide rail is in first position.

4. image processing system as claimed in claim 2, it is characterised in that when the pushing mechanism does not promote the development During the pushed part of unit, second guide rail is in first position due to the situation of deadweight.

5. image processing system as claimed in claim 2, it is characterised in that the developing cell also includes the second housing, Isolated part and elastic component are provided with second housing；The isolated part passes through the first housing with the photosensitive unit Compression zone abut or the developing parts is separated with photosensitive-member with the active force that the main body of image processing system abuts.

6. image processing system as claimed in claim 5, it is characterised in that the isolated part can be around second housing 3rd support shaft rotates, and the elastic component is torsion spring, and one end of the torsion spring abuts with isolated part, the other end of the torsion spring It is connected on second housing.

7. the image processing system as described in claim 3 or 4, it is characterised in that the developing cell also includes second shell Body, the pushed part are arranged on second housing, and elastic component is provided between the pushed part and the second housing.

8. the image processing system as described in claim 3 or 4, it is characterised in that the material of the pushing part or pushed part is Elastomeric material.

9. the image processing system as described in claim 3 or 4 or 5 or 6, it is characterised in that the developing cell also includes Second housing, the end of second housing are provided with the first lead and the second lead, and second guide rail, which is provided with, leads Groove；First lead and the second lead can slide along the guide groove.

10. image processing system as claimed in claim 9, it is characterised in that second guide rail is additionally provided with fixed part, institute The inwall that fixed part is stated with the main body of image processing system is fixedly connected.

11. image processing system as claimed in claim 10, it is characterised in that the fixed part is provided with parting surface, institute It is relative with the movable part to state parting surface, the parting surface can be contacted with second lead so as to fixed developing cell.

12. the image processing system as described in claim 3 or 4 or 5 or 6 or 10 or 11, it is characterised in that second guide rail First support shaft of the movable part on the inwall of the main body of image processing system revolve between the first position and the second position Transfer is dynamic.

13. the image processing system as described in claim 3 or 4 or 6 or 10 or 11, it is characterised in that described image forms dress Limit part is additionally provided with the main body put, the limit part limits the pivot region of the movable part of second guide rail.

14. the image processing system as described in claim 3 or 4 or 6 or 10 or 11, it is characterised in that described image forms dress Gear is additionally provided with the main body put, the upper surface of the push rod is provided with rack, and the wheel and rack, which is meshed, controls push rod Moving direction.

15. the image processing system as described in claim 3 or 4 or 6 or 10 or 11, it is characterised in that described image forms dress Cam is additionally provided with the main body put, controls push rod to stretch by controlling the rotation of cam.

16. a kind of handle box, it is characterised in that the handle box is any one image shape in the claims 1 to 15 The handle box included into device.