CN101833275A - Photosensitive drum cleaning device and imaging device related to same - Google Patents
Photosensitive drum cleaning device and imaging device related to same Download PDFInfo
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- CN101833275A CN101833275A CN200910047520A CN200910047520A CN101833275A CN 101833275 A CN101833275 A CN 101833275A CN 200910047520 A CN200910047520 A CN 200910047520A CN 200910047520 A CN200910047520 A CN 200910047520A CN 101833275 A CN101833275 A CN 101833275A
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- photosensitive drums
- residue
- cleaning
- conveying assembly
- conveyor module
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Abstract
The invention provides a cleaning device for cleaning a photosensitive drum, which comprises a blade, a collection slot and a residue delivery module, wherein the blade contacts the photosensitive drum to scrape residues attached to the photosensitive drum off, the collection slot is used for collecting residues, the residue delivery module is used for cleaning residues on the surface of the photosensitive drum off and concentrating the residues to the collection slot and comprises a delivery assembly, a cleaning assembly and a delivery path, the delivery assembly is opposite to the blade and is arranged at the upstream position of the rotation direction of the photosensitive drum, the cleaning assembly is configured on the surface of the delivery assembly for cleaning the photosensitive drum, and the delivery path comprises the delivery assembly and the cleaning assembly to deliver the residues scraped from the surface of the photosensitive drum to the collection slot through the delivery path.
Description
Technical field
The present invention relates to a kind of cleaning device of Equipment for forming image, especially refer to a kind of cleaning device that is used for cleaning the photosensitive drums of laser printer, this cleaning device utilizes single driving mechanism to drive function simultaneously corresponding to the cleaning assemblies of known hairbrush with will be delivered to the residue conveying assembly of feeder.
Background technology
In general, laser printer mainly includes charging, exposure, video picture, transfer printing, photographic fixing, cleaning, removes and seven big steps such as look like in the process that image forms.Laser printer utilization is a kind of by the formed mechanism of optical conductor--photosensitive drums, and carrying out so-called photoelectronic imaging, this also is a most crucial part in the image forming process of whole laser printer.In the operating process of photosensitive drums, can allow be used for imaging carbon dust attached to recording medium (as paper) although most carbon dust all can be transferred to recording medium in transfer printing step, but still have a certain proportion of carbon dust still attached to not being transferred on the photosensitive drums.On the other hand, because the impurity that recording medium itself has, as be attached in paper scrap on the paper, the paper manufacture process residual lime carbonate or other dust etc., may in the process of transfer printing or circulation of air, contact with photosensitive drums, and then attached on the photosensitive drums, therefore, make photosensitive drums in the image forming process, adhere to many unnecessary impurity.
So above-mentioned cleaning is in order to address this problem, to avoid the quality of impurity effect image output.Please refer to Fig. 1, it is the synoptic diagram of known cleaning device.As shown in the figure, cleaning device 110 adheres to impurity on the photosensitive drums 100 in order to removing, and wherein, cleaning device 110 includes scraping blade 112, hairbrush 114 and carbon dust conveying assembly 116.When photosensitive drums 100 when direction R rotates, hairbrush 114 can rotate and earlier with the cleaning of the part impurity on the photosensitive drums 100 with the direction identical or opposite with the braking direction R of photosensitive drums 100, and collects these impurity by the collecting mechanism (not shown).It should be noted, because carbon dust and photosensitive drums 100 are attached on the photosensitive drums 100 carbon dust by the acting force of electric charge, so be difficult to remove fully with hairbrush 114, so after hairbrush 114, scraping blade 112 can strike off remaining toner from the surface of photosensitive drums 100, and the impurity that hairbrush 114 is not removed fully sweeps in the lump.After scraping blade 112 sweeps carbon dust, because of carbon dust conveying assembly 116 does not contact with photosensitive drums 100, so after carbon dust and impurity are accumulate to certain amount, can be brought into transport path (not shown, the groove on the carbon dust conveying assembly 116) in the carbon dust conveying assembly 116.By transport path, carbon dust will be admitted in the feeder (not shown), thereby finishes the cleaning of whole photosensitive drums 100, thus, will make photosensitive drums 100 still possess favorable imaging quality in image forming process next time.
Yet, because hairbrush 114 and carbon dust conveying assembly 116 all need driving mechanism (not shown) separately, as motor, to make hairbrush carry out to clear away photosensitive drums the action of impurity respectively, and make the carbon dust conveying assembly carbon dust be sent into feeder along transport path by rotating, but, for known cleaning device, adopt the driving mechanism of the repetition of carrying out similar functions will inevitably cause the rising of hardware cost and the waste in the interior space of printer; And the carbon dust of known technology and impurity must be accumulate to certain amount just can be brought into transport path in the carbon dust conveying assembly 116, not only cleaning effect is non-instantaneity, and may cause carbon dust and impurity when not being brought into carbon dust conveying assembly 116 as yet, pollute other part of printer because of cross-ventilation.
Summary of the invention
Given this, the present invention aims to provide a kind of cleaning device in conjunction with hairbrush and carbon dust conveying assembly.Because the present invention is arranged at hairbrush and conveying assembly in the same rotating shaft conceptive, so only can reaches and drive the effect that hairbrush and carbon dust conveying assembly clean photosensitive drums simultaneously, further improve the efficient of cleaning device by same group of driving mechanism.With the design of known cleaning device Comparatively speaking, the present invention can reduce hardware and firmware (firmware) cost and cleaning device shared space in laser printer.
In addition, another benefit that hairbrush is combined with conveying assembly is, hairbrush can assist the carbon dust conveying assembly more efficiently carbon dust and other impurity that scraping blade swept to be brought into the transport path on the conveying assembly and successfully is collected into feeder, and hairbrush contacts with photosensitive drums, be able to bring carbon dust and impurity into transport path in real time, thereby reach the removing effect that is better than known cleaning device.
Therefore, according to one embodiment of the present of invention, provide a kind of cleaning device in order to the cleaning photosensitive drums.This cleaning device comprises: scraping blade, feeder and residue conveyor module.This scraping blade contacts this photosensitive drums, and in order to sweep the residue that is attached to this photosensitive drum surface, this residue comprises carbon dust and other impurity such as paper scrap and lime carbonate etc.This feeder is in order to collect residue.This residue conveyor module comprises: conveying assembly, cleaning assemblies and transport path.Moreover this conveying assembly is positioned at the position of this scraping blade upstream on the photosensitive drums sense of rotation.This cleaning assemblies is configured on the surface of this conveying assembly and contacts this photosensitive drums, in order to clean this photosensitive drums.This transport path is made of this conveying assembly and cleaning assemblies, in order to this scraping blade is brought into this transport path and is delivered to this feeder via this transport path via this cleaning assemblies from the residue that the surface swept of this photosensitive drums.
In another embodiment of the present invention, provide a kind of Equipment for forming image of the cleaning device that adopts the present invention's design.This Equipment for forming image comprises: photosensitive drums and cleaning device.This photosensitive drums is in rotational direction rotated, in order to will import the image data video picture on recording medium.This cleaning device comprises: scraping blade, feeder and residue conveyor module.This scraping blade contacts this photosensitive drums, in order to sweep the residue attached to this photosensitive drum surface.This residue conveyor module comprises: feeder, conveying assembly and cleaning assemblies.This feeder is in order to collect residue.Moreover this conveying assembly is positioned at the position of this scraping blade upstream on the photosensitive drums sense of rotation.This cleaning assemblies is configured on the surface of this conveying assembly and contacts this photosensitive drums, in order to clean this photosensitive drums.This transport path is made of this conveying assembly and cleaning assemblies, in order to this scraping blade is brought into this transport path and is delivered to this feeder via this transport path via this cleaning assemblies from the residue that this photosensitive drum surface swept.
Description of drawings
Fig. 1 is the synoptic diagram in order to the known cleaning device of cleaning photosensitive drums.
Fig. 2 is the synoptic diagram of a preferred embodiment of cleaning device of the present invention.
Fig. 3 is the synoptic diagram of another embodiment of cleaning device of the present invention.
Fig. 4 is the detailed maps of an embodiment of residue conveyor module of the present invention.
Fig. 5 is the detailed maps of another embodiment of residue conveyor module of the present invention.
Fig. 6 is the synoptic diagram of embodiment that adopts the Equipment for forming image of cleaning device of the present invention.
Embodiment
Please refer to Fig. 2, it is the synoptic diagram of a preferred embodiment of cleaning device of the present invention.Cleaning device 210 is used for photosensitive drums 200 is carried out cleaning, clears up with the residue that will be attached to photosensitive drums 200 surfaces.In the present embodiment, cleaning device 210 comprises scraping blade 212, feeder 216 and residue conveyor module 214.Scraping blade 212 contact photosensitive drums 200 are mainly used in the residue that sweeps attached to photosensitive drums 200 surfaces, are continued next image so that the surface of photosensitive drums 200 is cleaned and form program.Feeder 216 is in order to collect residue.214 of residue conveyor modules include: conveying assembly 218 is positioned at the upstream position on the rotation direction R ' of photosensitive drums 200 with respect to scraping blade 212; Cleaning assemblies 220, hairbrush for example is configured in the surface of conveying assembly 218, is configured on the conveying assembly 218 with spiral fashion in the present embodiment and contact photosensitive drums 200, in order to cleaning photosensitive drums 200; And transport path 219, formed by conveying assembly 218 and cleaning assemblies 220, as shown in the figure, transport path 219 is a spiral fashion in the present embodiment, scraping blade 212 is from the residue that the surface swept of photosensitive drums 200, earlier bring transport path 219 into by cleaning assemblies 220, again by the braking of driving mechanism 230, make transport path 219 with the direction conveying of residue feeder 216 in the diagram the most at last residue be stored in the feeder 216.
In the present embodiment, further do not limit the mode of braking of driving mechanism 230, that is, the rotation direction of residue conveyor module 214 can be identical with the rotation direction R ' of photosensitive drums 200 or opposite, and both all belong to category of the present invention.Yet, what should pay special attention to a bit is, when the rotation direction R ' of residue conveyor module 214 rotation directions and photosensitive drums 200 not simultaneously, the translational speed on the surface of residue conveyor module 214 must be relatively higher than the translational speed on the surface of photosensitive drums 200, thus, residue conveyor module 214 could be effectively successfully brought scraping blade 212 transport path 219 of conveying assembly 218 into from the residue that the surface swept of photosensitive drums 200, and then residue is collected into feeder 216.Yet when the rotation direction of residue conveyor module 214 and photosensitive drums 200 were identical, the surperficial translational speed of residue conveyor module 214 need not be higher than the translational speed on the surface of photosensitive drums 200.
Then, refer again to Fig. 3, it is the synoptic diagram of the variation example of cleaning device shown in Figure 2.Note that among the figure with shown in Figure 2 assembly has its function of assembly of same numeral and mode of operation identical with assembly shown in Figure 2, so do not describe in addition at this, below only describes with regard to two embodiment differences.Cleaning device 210 ' contains two feeders 216 and 216 ', be arranged on the two ends of residue conveyor module 214 ', also be used for collecting respectively the residue that is struck off by scraping blade 212, the transport path 219 ' that has only conveying assembly 218 ' and cleaning assemblies 220 ' to be constituted presents double helix shape (both sides of central point form the spiral of different directions respectively), therefore, when driving mechanism 230 braking residue conveyor module 214 ', cleaning assemblies 220 ' is brought the residue of transport path 219 ' into, according to its position, be transported to feeder 216 and 216 ' respectively.The advantage of this variation example is to provide residue collection mechanism faster, improves the cleaning efficiency of cleaning device 210 '.
Please refer to Fig. 4, it is the detailed maps of an embodiment of residue conveyor module of the present invention.As shown in the figure, in residue conveyor module 314, cleaning assemblies 320 is arranged on the surface of the conveying assembly 318 with spiral groove, and the residue that cleaning assemblies 320 also will be struck off in order to the cleaning photosensitive drums is brought transport path 319 into.Yet, refer again to Fig. 4, it is the detailed maps of another embodiment of residue conveyor module of the present invention, conveying assembly 418 does not possess spiral helicine groove to form transport path, but cleaning assemblies 420 by possessing thicker base part, and form as shown in Figure 2 spiral groove by means of the space that thickness separated of its pedestal, realize transport path 419, residue is delivered to the feeder (not shown).By above two embodiment, illustrated that transport path is to combine formed groove with cleaning assemblies by conveying assembly, and do not limit its concrete shape or structure separately, moreover, although above-mentioned description illustrates the shape of transport path with spiral groove, but this example only is the usefulness of elaboration, anyly can still meet the present invention spirit and should belong to category of the present invention with the structure that residue is guided to feeder as delivering path.
Refer again to Fig. 6, it is the structural representation that adopts the Equipment for forming image of cleaning device of the present invention.Equipment for forming image 630 comprises photosensitive drums 600, charging part 631, light source portion 632, imaging division 633, transfer printing portion 634, photographic fixing portion 635, cleaning device 610 and removes electric portion 637.
When carrying out image formation program, photosensitive drums 600 is with R in rotational direction " rotate; at first make air ionization; and make photosensitive drums 600 be distributed with one deck static; make its irradiation that is subjected to light source portion 632 via the rotation of photosensitive drums 600 again by charging part 631, photosensitive drums 600 be subjected to light-struck part then produce electron ionization to and this is partly conducted electricity because photosensitive drums 600 inner ground connection; so make its illumination partly and do not have the part of illumination to form potential difference, i.e. sub-image.When photosensitive drums 600 goes to imaging division 633, imaging division 633 includes the magnetic carbon dust, because the potential difference (PD) of photosensitive drum surface makes carbon dust only attached to photosensitive drums 600 not on the part of sensitization, and forms visible image on the photosensitive drums 600.Come again, transfer printing portion 634 pairs of recording mediums, 650 high-pressure positive electricity and make its band with positive charge, carbon dust is attached on the recording medium 650 through the attraction of electric field force thus, via photographic fixing portion 635 carbon dust is melted attached on the paper at last, form program and finish image.Come, cleaning device 610 comprises in order to clean the surface of this photosensitive drums 600 again: scraping blade 612, and contact photosensitive drums 600 is in order to sweep the residue attached to photosensitive drums 600 surfaces; And residue conveyor module 614, in order to those residues are delivered to feeder (not illustrating).The detailed structure of cleaning device 610 is roughly the same with the cleaning device (cleaning device 210 for example shown in Figure 2) of detailed operating principle and the foregoing description, does not do repeat specification at this.At last, by remove electric portion 637 with the potential drop on photosensitive drums 600 surfaces to zero potential form program so that carry out another image.
In the present embodiment, although the scraping blade in the cleaning device 610 612 is different with the relative position and the previous embodiment of residue conveyor module 614, but conveying assembly 618 wherein still with scraping blade 612 relative upstream positions on the rotation direction of photosensitive drums 600, so still scraping blade 612 can be collected smoothly from the residue that photosensitive drums 600 surfaces are swept.
In summary, the present invention is implemented on cleaning assemblies and conveying assembly in the same mechanism, and the start of appropriate arrangements cleaning assemblies, scraping blade and conveying assembly in proper order, thereby provide a kind of different with in the past, not only the cleaning device that cost is cheaper and cleaning effect is better.
The above only is preferred embodiment of the present invention, and all equivalences of being made according to claim scope of the present invention change and revise, and all should belong to covering scope of the present invention.
The primary clustering symbol description
100,200,600 photosensitive drums
110,210,210 ', 610 cleaning devices
112,212,612 scraping blades
114 hairbrush
116 carbon dust conveying assemblies
214,214 ', 314,414,614 residue conveyor modules
216,216 ' feeder
218,218 ', 318,418,618 conveying assemblies
219,219 ', 319,419 transport paths
220,220 ', 320,420,520 cleaning assemblies
230 driving mechanisms
630 Equipment for forming image
631 charging part
632 light source portion
633 imaging divisions
634 transfer printing portions
635 photographic fixing portions
637 remove electric portion
650 recording mediums
R, R ', R " rotation direction
Claims (12)
1. the cleaning device in order to the cleaning photosensitive drums is characterized in that, comprises:
Scraping blade, described scraping blade contacts described photosensitive drums, is used to sweep the residue attached to the surface of described photosensitive drums;
Feeder, described feeder is used to collect described residue; And
The residue conveyor module comprises:
Conveying assembly, described conveying assembly is relative with described scraping blade, and is positioned at the upstream position on the rotation direction of described photosensitive drums; And
Cleaning assemblies, described cleaning assemblies are configured in the surface of described conveying assembly and contact described photosensitive drums, in order to clean described photosensitive drums; And
Transport path, described transport path is made of described conveying assembly and described cleaning assemblies, in order to described scraping blade is brought into described transport path and is delivered to described feeder via described transport path via described cleaning assemblies from the residue that the surface swept of described photosensitive drums.
2. cleaning device as claimed in claim 1 is characterized in that, wherein said residue conveyor module is subjected to the driving of driving mechanism and rotates, and the rotation direction of described residue conveyor module is identical with the rotation direction of described photosensitive drums.
3. cleaning device as claimed in claim 1 is characterized in that, wherein said residue conveyor module is subjected to the driving of driving mechanism and rotates, and the direction of rotation of the rotation direction of described residue conveyor module and described photosensitive drums.
4. cleaning device as claimed in claim 1 is characterized in that, wherein said feeder is positioned at a side of described residue conveyor module.
5. cleaning device as claimed in claim 1 is characterized in that wherein said cleaning assemblies is configured on the described conveying assembly with spiral fashion.
6. cleaning device as claimed in claim 1 is characterized in that, wherein said transport path is a helical-like path.
7. an Equipment for forming image in order to carry out image processing, is characterized in that, comprises:
Photosensitive drums, described photosensitive drums will be imported the image data video picture on recording medium in rotational direction to rotate; And cleaning device, described cleaning device comprises in order to clean the surface of described photosensitive drums:
Scraping blade, described scraping blade contacts described photosensitive drums, is used to sweep the residue attached to described photosensitive drum surface;
Feeder, described feeder is used to collect described residue; And
The residue conveyor module comprises:
Conveying assembly, described conveying assembly are positioned at the upstream position of the rotation direction of described photosensitive drums with respect to described scraping blade;
Cleaning assemblies, described cleaning assemblies are disposed at the surface of described conveying assembly and contact described photosensitive drums, in order to clean described photosensitive drums; And
Transport path, described transport path is formed by described conveying assembly and described cleaning assemblies, in order to described scraping blade is brought into described transport path and is transported to described feeder via described transport path via described cleaning assemblies from the residue that the surface swept of described photosensitive drums.
8. Equipment for forming image as claimed in claim 7 is characterized in that, wherein said residue conveyor module is subjected to the driving of driving mechanism and rotates, and the rotation direction of described residue conveyor module is identical with the rotation direction of described photosensitive drums.
9. Equipment for forming image as claimed in claim 7 is characterized in that, wherein said residue conveyor module is subjected to the driving of driving mechanism and rotates, and the direction of rotation of the rotation direction of described residue conveyor module and described photosensitive drums.
10. Equipment for forming image as claimed in claim 7 is characterized in that, wherein said feeder is positioned at a side of described residue conveyor module.
11. Equipment for forming image as claimed in claim 7 is characterized in that, wherein said cleaning assemblies is configured on the described conveying assembly with spiral fashion.
12. Equipment for forming image as claimed in claim 7 is characterized in that, wherein said transport path is a helical-like path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047520A CN101833275A (en) | 2009-03-13 | 2009-03-13 | Photosensitive drum cleaning device and imaging device related to same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047520A CN101833275A (en) | 2009-03-13 | 2009-03-13 | Photosensitive drum cleaning device and imaging device related to same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101833275A true CN101833275A (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910047520A Pending CN101833275A (en) | 2009-03-13 | 2009-03-13 | Photosensitive drum cleaning device and imaging device related to same |
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| Country | Link |
|---|---|
| CN (1) | CN101833275A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08160819A (en) * | 1994-12-02 | 1996-06-21 | Toshiba Corp | Cleaning device and image forming device provided with the device |
-
2009
- 2009-03-13 CN CN200910047520A patent/CN101833275A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08160819A (en) * | 1994-12-02 | 1996-06-21 | Toshiba Corp | Cleaning device and image forming device provided with the device |
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Application publication date: 20100915 |