CN201247387Y - Processing box for electrophotography imaging apparatus - Google Patents
Processing box for electrophotography imaging apparatus Download PDFInfo
- Publication number
- CN201247387Y CN201247387Y CNU2008201887525U CN200820188752U CN201247387Y CN 201247387 Y CN201247387 Y CN 201247387Y CN U2008201887525 U CNU2008201887525 U CN U2008201887525U CN 200820188752 U CN200820188752 U CN 200820188752U CN 201247387 Y CN201247387 Y CN 201247387Y
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- China
- Prior art keywords
- photosensitive drums
- handle box
- image forming
- photosensitive drum
- image
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Electrophotography Configuration And Component (AREA)
Abstract
The utility model relates to a processing box of an electronic photographing and imaging device, which comprises an inducing imaging unit and a developing unit, wherein the inducing imaging unit comprises a photosensitive drum and the developing unit comprises a developing roller. A movable protecting cover is arranged near the exposed surface of the photosensitive drum, which is used for transferring viewable images. The protecting cover is fixedly connected with the middle section of a support along the axial direction of the photosensitive drum. Both ends of the support along the axial direction of the photosensitive drum are respectively and movably inserted in two faucets which are provided with transverse gaps and are simultaneously arranged on the upper end surface of the processing box in a rotating mode along the axial direction of the photosensitive drum, and fixed clips for sealing the transverse gaps are respectively arranged on the two faucets. The processing box can effectively prevent the protecting cover of the photosensitive drum thereof from dropping from the processing box.
Description
Technical field
The utility model relates to for example handle box of laser printer of electrophotographic image forming, and this handle box is being converted to the laser signal induction image forming unit of electrostatic latent image and can being shown as the developing cell of visual image to electrostatic latent image as formation base.Wherein the induction image forming unit comprises photosensitive drums, and developing cell comprises developer roll.This handle box is provided with at the position that photosensitive drums is used to transmit visual image and covers the protective cover that this visual image transmits the position movably.
Background technology
Electrophotographic image forming, for example laser printer is the photosensitive drums that has predetermined potential by the laser scanning irradiation, forms electrostatic latent image on its surface.This electrostatic latent image is developed with predetermined carbon dust, and then will be transferred on the paper, the image fixing of transfer printing acquisition, become the visual image that naked eyes can be observed afterwards,---signal---conversion between the image that realizes image thus through the image that develops.
Common laser printer is provided with charging roller, photosensitive drums, laser scanning mechanism, developing apparatus, transfer roll and fixing roller etc. in its casing.
During work, photosensitive drums charges to predetermined potential by charging roller, and response is formed corresponding to the electrostatic latent image for the treatment of print image by laser scanning mechanism emitted laser bundle.Store carbon dust in the container that developing apparatus is established within it, and utilize powder feeding roller and developer roll that carbon dust is sent to the photosensitive drums that has electrostatic latent image, electrostatic latent image is revealed as with the visual image of carbon dust as the development medium.The visual image that forms on the photosensitive drums is transferred on the paper between photosensitive drums and the transfer roll by transfer roll, utilizes fixing roller that the carbon dust image on the paper is given photographic fixing at last.
As the component parts of laser printer, charging roller, photosensitive drums, powder feeding roller and developer roll etc. are concentrated usually and are arranged in the same multi-functional integrated box that is called as handle box.Wherein, charging roller and photosensitive drums are integrated in the induction image forming unit, and powder feeding roller and developer roll are integrated in the developing cell.
Above-mentioned handle box, its developing cell utilizes the powder storehouse to bear the storage task of carbon dust on the one hand, on the other hand, powder feeding roller and developer roll are arranged at the inside of developing cell simultaneously, realize carbon dust transmission between developer roll and photosensitive drums by powder feeding roller and developer roll, so that finish conversion between photosensitive drums electrostatic latent image and the visual image by carbon dust in transhipment between powder feeding roller and the developer roll and carbon dust.Developing cell comprises powder storehouse, powder feeding roller and developer roll on the whole, its with the induction image forming unit at photosensitive drums place between generally realize dismountable fixedlying connected between the two by bearing pin and pin-and-hole so that constitute a handle box that function is complete.
After aforementioned photosensitive drum surface electrostatic latent image was converted into visual image, this visual image rotated into transfer area with photosensitive drums.In this transfer area, visual image is in exposed state, and in being transferred on the paper by after applying transfer voltage by transfer roll under this exposed state.In this course of work, in order to guarantee at different article, for example transmit visual image between photosensitive drums and the paper, the surface that photosensitive drums carries visual image must in position be in naked state, so as the article of accepting visual image for example paper can be near the closely transmission of its surface in order to carbon dust.So, can cause the part of photosensitive drum surface can be in naked state all the time owing to realize the needs of visual image transmission.Be not loaded in photosensitive drums under the state of laser printer, aforementioned exposed photosensitive drum surface need adopt usually mobilizable protective cover shield its with external environment condition between contact, avoid it to be subjected to unnecessary collision, damage.Be loaded in photosensitive drums under the state of laser printer, protective cover should depart from aforementioned exposed photosensitive drum surface, so that carbon dust can transmit between photosensitive drums and paper smoothly.Yet the support of supporting protection cover usually can be deviate from from its pivot point or support holes and influence the normal operating condition of protective cover.
The utility model content
The utility model purpose is to provide a kind of handle box that is applied to electrophotographic image forming.The phenomenon that this handle box can avoid its photosensitive drums protective cover to come off from handle box, and can dismantle the protective cover of photosensitive drums so that maintenance from handle box easily.
According to above-mentioned purpose, the used for electronic photography image forming apparatus handle box of the utility model design comprises induction image forming unit and developing cell.Induction image forming unit and developing cell are concentrated and are assemblied on the handle box.The induction image forming unit comprises the photosensitive drums that can be converted into the laser that printer sends electrostatic latent image.Developing cell comprises that can lay developer at photosensitive drum surface makes electrostatic latent image be converted into the developer roll of visual image.Be provided with mobilizable protective cover be used to shift the exposed surface of visual image in photosensitive drums near.Protective cover with support along photosensitive drum shaft to the stage casing be maintained fixed connection.Support along photosensitive drum shaft to two ends be plugged on two plug receptacles that all have horizontal cut that are arranged in end surface on the handle box simultaneously respectively rotationally.On two plug receptacles, respectively be provided with a geometrical clamp that is used to seal horizontal cut.
Aforementioned electronic photograph imaging device handle box, its geometrical clamp is made of two jig arm and capping portion.Article two, jig arm is held on handle box and is positioned near the plug receptacle the frame wall.Make plug receptacle have complete side walls behind the capping portion sealing horizontal cut along self circumferencial direction.
Used for electronic photography image forming apparatus handle box of the present utility model, the phenomenon at the support of supporting protection cover usually can be deviate from from its pivot point is provided with geometrical clamp on the plug receptacle as pivot point.Be enclosed in the former horizontal cut that pre-exists on the plug receptacle by this geometrical clamp, make plug receptacle on its cross-sectional direction, become fulcrum with complete outer wall.Like this, when the two ends of the support of supporting protection cover are plugged in the plug receptacle, owing to be subjected to the support and the restriction of plug receptacle lateral sidewalls, they can not be deviate from from plug receptacle, and then reach the purpose that obtains the stable support aforementioned brackets.
The drawing explanation
Fig. 1 is equipped with the laser printer structural representation of the utility model used for electronic photography image forming apparatus handle box.
Fig. 2 the utility model used for electronic photography image forming apparatus handle box skeleton view one.
Fig. 3 is the local enlarged diagram at Fig. 2 dashed circle position.
Fig. 4 the utility model used for electronic photography image forming apparatus handle box skeleton view two.
The first geometrical clamp skeleton view one in Fig. 5 the utility model used for electronic photography image forming apparatus handle box.
The first geometrical clamp skeleton view two in Fig. 6 the utility model used for electronic photography image forming apparatus handle box.
The second geometrical clamp skeleton view one in Fig. 7 the utility model used for electronic photography image forming apparatus handle box.
The second geometrical clamp skeleton view two in Fig. 8 the utility model used for electronic photography image forming apparatus handle box.
Fig. 9 the utility model used for electronic photography image forming apparatus handle box skeleton view three.
Figure 10 is the local enlarged diagram of Fig. 9 dashed circle position I.
Figure 11 is the local enlarged diagram of Fig. 9 dashed circle position II.
Embodiment
Referring to Fig. 1, be the schematic sectional structure chart that the utility model laser printer processing box is assemblied in laser printer 1 wherein, among the figure, cutting plane is perpendicular to the axis of photosensitive drums in the handle box.
According to Fig. 1, the imaging process of laser printer 1 comprises following link.
By the driving action that printer 1 produces, make photosensitive drums 2 do the clockwise direction rotation along diagram dotted arrow α, utilize the cylindrical drum face uniform charging of charging roller 3 simultaneously to photosensitive drums 2.Photosensitive drums 2 is rotated in response to the activation bit that transmits in printer in good time, in the laser beam 401 terminal corresponding zones that produce with laser generating mechanism 4, the cylindrical drum face of photosensitive drums 2 is under the irradiation of the laser beam 401 that laser generating mechanism 4 produces, and forms electrostatic latent image at the corresponding irradiation area of laser beam 401.
In photosensitive drums 2 rotations, driving by printer 1, the cylindrical roll surface of developer roll 5 and the cylindrical drum face of photosensitive drums 2 keep same linear velocity to do rotation counterclockwise along diagram dotted arrow β, make the carbon dust 601 that is contained in the toner 6 after adjusting through powder delivery cutter 7, a part wherein evenly is adsorbed on the cylindrical roll surface of developer roll 5, form the carbon dust layer, and from toner 6, taken out of to developing regional described below.
Meanwhile, be accompanied by being further rotated of photosensitive drums 2, the cylindrical drum face zone that carries electrostatic latent image marches to itself and developer roll 5 cylindrical roll surfaces can be in contact with one another or the gap is minimum developing regional, that is carries out the zone that carbon dust transmits.Here, the aforementioned carbon dust layer that entrained process powder delivery cutter 7 is regulated on the cylindrical roll surface of developer roll 5, because of there is potential difference in the electrostatic latent image region of itself and photosensitive drums 2, and be converted to the electrostatic latent image region of photosensitive drums 2 accordingly, electrostatic latent image is developed into is visual carbon dust image.Photosensitive drums 2 is further rotated, and the cylindrical drum face of carbon dust image region proceeds to transfer area.In transfer area, be developed same mechanism according to electrostatic latent image into visual image, the carbon dust image is transferred at the recording medium between photosensitive drums 2 and the transfer roll 8 for example on the surface of paper 11 through the bias effect of transfer roll 8.Photosensitive drums 2 is further rotated, and remains in the remaining carbon dust that is not transferred on the photosensitive drums 2 is used as cleaning member in residual powder cleaning area cleaning doctor 9 scrapings and comes off, and be recovered to remaining carbon dust reception room, promptly in the waste powder hopper 10.Photosensitive drums 2 through cleaning has just obtained to carry out the needed clean surface of secondary imaging, and the photosensitive drums 2 that is maintained in the clean condition is carried out above-mentioned imaging process repeatedly with rotation mode, finally forms complete image on the surface of recording medium paper 11.
After the image transfer printing, carry carbon dust record images medium paper 11, be passed to two fixing rollers 12,13 that are parallel to each other and place by the transport sector that is provided with in the printer, and in the roll gap between two fixing rollers 12,13, pass.In the roll gap between two fixing rollers 12,13, after the high temperature high pressure process of the carbon dust image on the recording medium paper 11 through 12,13 generations of two fixing rollers, be permanently fixed on the recording medium paper 11.Afterwards, have recording medium paper 11 through the carbon dust image of permanent photographic fixing by the transport sector transmission and be expelled to the take-up reel 14 that is arranged in the laser printer outside.
As above-described, handle box 20 is being born and is being formed electrostatic latent image and electrostatic latent image is converted to the task of visual image, and parts such as developer roll 5, toner 6, puddle support 15, powder delivery cutter 7, photosensitive drums 2, charging roller 3, cleaning doctor 9 and waste powder hopper 10 are executive components that handle box 20 is realized aforementioned imaging function.Wherein, parts such as photosensitive drums 2, charging roller 3, cleaning doctor 9 and waste powder hopper 10 are integrated into induction image forming unit 40 again, are responsible for producing electrostatic latent image; Parts such as developer roll 5, toner 6, puddle support 15 and powder delivery cutter 7 are integrated into developing cell 30 again, and the transmission of being responsible for carbon dust is so that obtain visual image.
Form by bearing pin insertion pin-and-hole (not shown) between induction image forming unit 40 and the developing cell 30 keeps dismountable annexation.In induction image forming unit 40, be provided with photosensitive drums 2.Two axle heads of photosensitive drums 2 are rotatably supported in respectively in the pivot hole that is provided with on two outermost end sidewalls of induction image forming unit 40 perpendicular to photosensitive drums 2 axis.Photosensitive drums 2 can be done the clockwise direction rotation along diagram dotted arrow α around self axis under external force drives.Charging roller 3 is parallel to the periphery that photosensitive drums 2 axial modes are arranged in photosensitive drums 2 with its axis, and it makes the photosensitive layer of photosensitive drums 2 obtain required voltage by the mode that applies voltage.Waste powder hopper 10 is surrounded by the respective side walls of induction image forming unit 40 and forms, and it is distributed in the periphery of photosensitive drums 2 simultaneously together with cleaning doctor 9.Behind the surface of cleaning doctor 9 cleaning photosensitive drums 2, make the carbon dust that scrapes from the surface of photosensitive drums 2 be collected into waste powder hopper 10.
Referring to Fig. 2,3,4 and in conjunction with Fig. 1, as what above introduce, when photosensitive drums 2 was further rotated in laser printer 1, the cylindrical drum face of its carbon dust image region marched to transfer area.In this transfer area, the carbon dust image is transferred on the surface of the recording paper 11 between photosensitive drums 2 and the transfer roll 8 through the bias effect of transfer roll 8.Under photosensitive drums 2 is fixed in state on the induction image forming unit 40, its cylindrical drum face corresponding to transfer area will be in exposed state all the time, and pairing exposed surface is protected by protective cover 17.In photosensitive drums 2, that is handle box 20 is loaded under the state of laser printer 1, protective cover 17 departs from the exposed surface of photosensitive drums 1 by the rotation of support 18, make this exposed surface be in exposed state, so that carbon dust can transmit between photosensitive drums 2 and paper 11 smoothly, and the process that photosensitive drums 2 is loaded into laser printer 1 makes torsion spring 19 be able to accumulation of energy.In photosensitive drums 2, that is handle box 20 is not loaded under the state of laser printer 1, and support 18 forms revolution under the twisting force of torsion spring 19, drives protective cover 17 and resets to cover the exposed surface with photosensitive drums 1, and it is isolated with external environment condition.
Protective cover 17 is provided support by support 18.Support 18 is plugged on two plug receptacles 21 that are arranged in handle box 20 upper end simultaneously respectively movably along photosensitive drums 2 two axial terminations, in a side edge edge of protective cover 17, Fig. 3 shows support 18 along the combination of one of two axial terminations of photosensitive drums 2 with handle box 20 to support 18 along the axial stage casing zone engages of photosensitive drums 2.The exposed surface region that handle box 20 upper end at two plug receptacle 21 places and aforementioned photosensitive drums 1 are used for transfer printing is in the both sides of handle box 20 respectively.And on the upper end of handle box 20, two plug receptacles 21 lay respectively at handle box 20 basically along the axial two ends of photosensitive drums 2.Plug receptacle 21 is the cylindrical hole of its axially parallel in photosensitive drums 2, and constitute the part of the post jamb of this cylindrical hole, promptly disallowable back to the part of handle box 20, make plug receptacle 21 photosensitive drums 2 axially on and all be in open state back to a side of handle box 20, so, the termination of support 18 just can easily be inserted in the plug receptacle 21 by aforementioned opening port.
Referring to Fig. 5～11, the configuration state of aforementioned plug receptacle 21 cause its structure in other words its shape owe complete so that come off out easily as the terminations that the cylindrical hole of plug receptacle 21 sustains damage easily or support 18 inserts in the plug receptacles 21.For this reason, utilize geometrical clamp 22 to seal plug receptacle 21 radially along self, that is breach transversely.Geometrical clamp 22 is made of two jig arm 221,222 and capping portion 223.When geometrical clamp 22 cappings are to the horizontal cut of plug receptacle 21, its two jig arm 221,222 are held on handle box 20 and are positioned near the plug receptacle 21 the frame wall, the horizontal cut of its capping portion 223 sealings plug receptacle 21, make plug receptacle 21 have complete side walls along self circumferencial direction, and then keep plug receptacle 21 to have complete shape, so that the termination of support 18 can be subjected to the restriction of plug receptacle 21 circumferential side wall in being inserted into plug receptacle 21 time and can not deviate from from plug receptacle 21.In the side of geometrical clamp 22 with respect to two jig arm 221,222, that is capping portion 22 is provided with afterbody 224 with respect to a side of two jig arm 221,222.When geometrical clamp 22 cappings were to the horizontal cut of plug receptacle 21, afterbody 224 fitted to handle box 20 and is positioned near the plug receptacle 21 the frame wall.Because plug receptacle 21 is located substantially on handle box 20 along the axial end of photosensitive drums 2, therefore,, can on its afterbody 224, locating button 225,225` be set usually for the geometrical clamp 22 that is used for sealing two plug receptacles 21 respectively.When two geometrical clamps 22 were respectively on capping to two plug receptacle 21, the afterbody 224 that locating button 225 and locating button 225` lay respectively at two geometrical clamps 22 was along the axial inboard of photosensitive drums 2, was positioned near the plug receptacle 21 frame wall to fasten handle box 20.
Claims (2)
1. used for electronic photography image forming apparatus handle box, comprise induction image forming unit and developing cell, described induction image forming unit and described developing cell are concentrated and are assemblied on the described handle box, described induction image forming unit comprises the photosensitive drums that can be converted into the laser that described printer sends electrostatic latent image, described developing cell comprises that can lay developer at described photosensitive drum surface makes described electrostatic latent image be converted into the developer roll of visual image, be provided with mobilizable protective cover be used to shift the exposed surface of visual image in described photosensitive drums near, described protective cover with support along described photosensitive drum shaft to the stage casing be maintained fixed connection, described support along described photosensitive drum shaft to two ends be plugged on two plug receptacles that all have horizontal cut that are arranged in end surface on the described handle box simultaneously respectively rotationally, it is characterized in that, on two described plug receptacles, respectively be provided with a geometrical clamp that is used to seal described horizontal cut.
2. used for electronic photography image forming apparatus handle box according to claim 1, it is characterized in that, described geometrical clamp is made of two jig arm and capping portion, described two jig arm are held on described handle box and are positioned near the described plug receptacle the frame wall, and described capping portion seals and makes behind the described horizontal cut described plug receptacle have complete side walls along self circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201887525U CN201247387Y (en) | 2008-08-13 | 2008-08-13 | Processing box for electrophotography imaging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201887525U CN201247387Y (en) | 2008-08-13 | 2008-08-13 | Processing box for electrophotography imaging apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201247387Y true CN201247387Y (en) | 2009-05-27 |
Family
ID=40731208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201887525U Expired - Fee Related CN201247387Y (en) | 2008-08-13 | 2008-08-13 | Processing box for electrophotography imaging apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201247387Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221810A (en) * | 2011-07-05 | 2011-10-19 | 珠海天威飞马打印耗材有限公司 | Processing cartridge |
| CN102540845A (en) * | 2012-02-01 | 2012-07-04 | 珠海天威飞马打印耗材有限公司 | Processing box and assembling method thereof |
-
2008
- 2008-08-13 CN CNU2008201887525U patent/CN201247387Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221810A (en) * | 2011-07-05 | 2011-10-19 | 珠海天威飞马打印耗材有限公司 | Processing cartridge |
| CN102540845A (en) * | 2012-02-01 | 2012-07-04 | 珠海天威飞马打印耗材有限公司 | Processing box and assembling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20170813 |