CN202126572U - Developing box - Google Patents
Developing box Download PDFInfo
- Publication number
- CN202126572U CN202126572U CN2011202482299U CN201120248229U CN202126572U CN 202126572 U CN202126572 U CN 202126572U CN 2011202482299 U CN2011202482299 U CN 2011202482299U CN 201120248229 U CN201120248229 U CN 201120248229U CN 202126572 U CN202126572 U CN 202126572U
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- Prior art keywords
- photosensitive drums
- photosensitive drum
- disappears
- cleaning
- developing
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- Expired - Fee Related
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Abstract
The utility model relates to a developing box, which comprises a powder bin for storing carbon powder and a developing bin for receiving the carbon powder supplied to the powder bin and converting the carbon powder into visual images. The developing bin comprises a photosensitive drum, a charging device, a cleaning device and a waste powder bin, wherein the surface of the photosensitive drum can form static latent images, the charging device is used for charging uniform electric charge to the surface of the photosensitive drum, the cleaning device is used for cleaning residual carbon powder after the surface of the photosensitive drum performs transfer printing, and the waste powder bin is used for collecting residual carbon powder. The developing bin further comprises an electricity removing device for removing electricity on the photosensitive drum after the photosensitive drum finishes the transfer printing. The electricity removing device is arranged behind the cleaning device or in the waste powder bin, thereby being capable of completely removing residual electric potential on the surface of the photosensitive drum, greatly improving cleaning efficiency in next cleaning step, enabling the photosensitive drum to be complete in charging exposure in next working cycle and improving printing quality.
Description
Technical field
The utility model relates to laser printer, more particularly, relates to a kind of Developing box that is used for laser printer.
Background technology
Laser printer is one of present most widely used computing machine output peripheral equipment, and it utilizes the physics, the principles of chemistry of light, electricity, heat through interaction output character or image.Basic process can be divided into seven steps such as charging, exposure, development, transfer printing, photographic fixing, the electricity that cleans, disappears.At first, photosensitive drum surface is charged by charging roller equably.Laser scanner is launched the laser through ovennodulation that contains image information to photosensitive drums, forms and the electrostatic latent image of treating that duplicating image is corresponding at photosensitive drum surface.Then, from the carbon dust of developer roll then be adsorbed on and make electrostatic latent image convert visual image on the photosensitive drum surface.Along with the rotation of photosensitive drums and the positive voltage effect that the recording medium back sides such as paper is applied through transfer roll; Electronegative carbon dust to formed visual image at photosensitive drum surface produces attractive force, and the visual image that is formed by carbon dust promptly is transferred on the recording medium such as paper.Get into the photographic fixing assembly that warm-up mill and backer roll form subsequently, carbon powder particles fuses in the fiber of recording medium under the effect of heat and pressure, so the visual image full solidification that carbon dust forms is on recording medium.So basic imaging action has just been accomplished.
After accomplishing a basic imaging action, need disappear to photosensitive drums; The photosensitive drums of prior art disappear the electricity a kind of mode be that electricity disappears; Promptly carry out the reversed charge electricity that disappears through being arranged on single charging unit in the cartridge, another kind of mode is the light electricity that disappears, and promptly through the electric light that disappears in the machine photosensitive drums blanket exposure is disappeared; With remaining current potential after the transfer printing on the elimination photosensitive drums, make photosensitive drums current potential that it is surperficial before the next work period be returned to original state.All there is certain defective in these the two kinds electric modes that disappear, and in using the imaging device of direct current to photosensitive drum charging, the electricity that disappears is realized through the electric light that disappears, and the electric process that disappears is positioned at before the cleaning; In using the imaging device of alternating current to photosensitive drum charging, the electricity that disappears is realized through the charging unit of opposite charges, and the electric process that disappears is positioned at after the cleaning.
Along with development of science and technology, the carbon dust mean particle dia of prior art is more and more littler, and cleaning has become a new difficult problem.After the process transfer printing; Remain in that the carbon dust institute of photosensitive drum surface is electrically charged not to disappear because of transfer process; And the opposite polarity of remnants after this electric charge and the photosensitive drum surface transfer printing; Be attached together through this opposite polarity electric charge between the two, only, be difficult to the thorough clean of residual carbon dust through single the disappear electric roller or the electricity that before cleaning, do not disappear.The carbon dust of cleaning will not intervened the next work period of photosensitive drums, and be embodied in the hard copy, influence print quality.
The utility model content
The technical matters that the utility model will solve is, the existing above-mentioned defective of electricity that disappears to the photosensitive drums of prior art provides a kind of Delevoping cartridge, can eliminate the residual charge on the photosensitive drums more completely, improves print quality.
The utility model solves the technical scheme that its technical matters adopted: construct a kind of Delevoping cartridge; Comprise the powder storehouse that is used to store carbon dust; And be used to receive the carbon dust that is supplied in the powder storehouse and carbon dust be converted into the developing chamber of visual image; Said developing chamber comprises that the surface can form the photosensitive drums of electrostatic latent image, be used for filling charging device with even electric charge, being used to clean cleaning device and the waste powder hopper that is used to collect remaining carbon dust of surface remaining carbon dust after transfer printing of said photosensitive drums to the surface of said photosensitive drums; Said Developing box comprises also and is used for finishing the back to the disappear discharge system of electricity of said photosensitive drums in said photosensitive drums transfer printing that said discharge system is arranged in the back or said waste powder hopper of said cleaning device.
In the described Developing box of the utility model; Said discharge system comprises the electric light that disappears; And be used for that the light that the said electric light that disappears sends is guided to said photosensitive drums and make said photosensitive drums blanket exposure and the hollow glass rod of the electricity that disappears, said hollow glass rod laterally arranges with said photosensitive drums.
In the described Developing box of the utility model, said discharge system is the electric roller that disappears, and the said electric roller (3) that disappears laterally arranges with said photosensitive drums, and the polarity of the surface electric charge of the said electric roller that disappears and the residual charge of said photosensitive drum surface is opposite.
In the described Developing box of the utility model, said cleaning device comprises a cleaning doctor, and said cleaning doctor is positioned at the place ahead of said cleaning device.
In the described Developing box of the utility model, said charging device is a charging roller, and said charging roller and said photosensitive drums laterally arrange, and said charging roller is positioned at the place ahead of said cleaning doctor.
Implement the Developing box of the utility model; Have following beneficial effect: the Delevoping cartridge of the utility model is provided with discharge system in the back of cleaning device or waste powder hopper; Can eliminate the rest potential of photosensitive drum surface more completely; Have on the photosensitive drums and the remaining carbon dust of the opposite polarity electric charge of photosensitive drum surface and the absorption affinity of " there is a natural attraction between the sexes " between the photosensitive drum surface to weaken even to eliminate; With the cleaning efficiency that improves next step cleaning greatly, make photosensitive drums charging exposure in the next work period more thorough, improve print quality.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below, in the accompanying drawing:
Fig. 1 is the inner structure synoptic diagram of first embodiment of the Delevoping cartridge of the utility model;
Fig. 2 is the inner structure synoptic diagram of second embodiment of the Delevoping cartridge of the utility model.
Embodiment
Understand for technical characterictic, purpose and effect to the utility model have more clearly, contrast the embodiment that accompanying drawing specifies the utility model at present.
As shown in Figure 1; Inner structure synoptic diagram for first embodiment of the Delevoping cartridge of the utility model; This Developing box is dismountable to be arranged in the imaging device; It comprises the powder storehouse that is used to store carbon dust; And be used to receive the carbon dust that is supplied in the powder storehouse and carbon dust be converted into the developing chamber of visual image; This developing chamber comprises that the surface can form the photosensitive drums 1 of electrostatic latent image, be used for filling charging device with even electric charge, being used to clean cleaning device and the waste powder hopper that is used to collect remaining carbon dust of surface remaining carbon dust after transfer printing of said photosensitive drums 1 to the surface of said photosensitive drums 1; This Developing box comprises also and is used for finishing the back to the disappear discharge system of electricity of said photosensitive drums 1 in photosensitive drums 1 transfer printing that this discharge system is arranged in the back or said waste powder hopper of cleaning device, and the fore-and-aft direction of indication is before the direction with the rotation of photosensitive drums 1 is here.The basic structure of the Developing box of the utility model and the structural similarity of existing Developing box repeat no more, and difference is in the Developing box of the utility model, in the back of cleaning device or waste powder hopper, are provided with discharge system.In the present embodiment, this discharge system comprises the electric light that disappears, and is used to produce light; Also comprise hollow glass rod 2; Hollow glass rod 2 is used for the light that the electric light that disappears sends is guided to the surface of photosensitive drums 1, makes photosensitive drums 1 blanket exposure and the electricity that disappears, and hollow glass rod 2 laterally arranges with photosensitive drums 1.In the present embodiment, cleaning device comprises a cleaning doctor 4 and the fixed support 40 that is used for fixing cleaning doctor 4, and cleaning doctor 4 is positioned at the place ahead of hollow glass rod 2; Photosensitive drums 1 is after 2 exposures of hollow glass rod; Residual charge is eliminated, and when cleaning through cleaning doctor, can make the more thorough of residual carbon powder cleaning again; Like this can photosensitive drums 1 charging exposure in next work period more thorough, improved the quality of printing.Hollow glass rod 2 can adopt the conventional mode that is suitable for to fix, for example through setting up mode such as support.In the present embodiment, charging device is a charging roller 5, and charging roller 5 is positioned at the place ahead of cleaning doctor 4.
As shown in Figure 2, be second embodiment of the Developing box of the utility model, the basic structure of this Developing box is identical with the structure of the Developing box of first embodiment; Difference is that the discharge system of the two is different, and in the present embodiment, the discharge system of Developing box is the electric roller 3 that disappears; This electric roller 3 that disappears laterally arranges with photosensitive drums 1; This electric roller 3 that disappears is positioned at the back of cleaning doctor 4, fill on the electric roller 3 that disappears with the opposite polarity electric charge of the surface charge of photosensitive drums 1, the electric charge on the electric roller 3 that disappears like this can neutralize with the surface electric charge of photosensitive drums 1; Thereby the elimination residual charge is to reach the purpose of the electricity that disappears.
The discharge system of above-mentioned two embodiment also can be arranged in the waste powder hopper of Developing box, can play the electric effect that well disappears equally, improves the quality of printing.
The Delevoping cartridge of the utility model is provided with discharge system in the back of cleaning device or waste powder hopper; Can eliminate the rest potential of photosensitive drum surface more completely; Have on the photosensitive drums and the remaining carbon dust of the opposite polarity electric charge of photosensitive drum surface and the absorption affinity of " there is a natural attraction between the sexes " between the photosensitive drum surface to weaken even to eliminate; With the cleaning efficiency that improves next step cleaning greatly, make photosensitive drums charging exposure in the next work period more thorough, improve print quality.
Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the utility model.
Claims (5)
1. Developing box; Comprise the powder storehouse that is used to store carbon dust; And be used to receive the carbon dust that is supplied in the powder storehouse and carbon dust be converted into the developing chamber of visual image; Said developing chamber comprises that the surface can form the photosensitive drums of electrostatic latent image (1), be used for filling charging device with even electric charge, being used to clean cleaning device and the waste powder hopper that is used to collect remaining carbon dust of surface remaining carbon dust after transfer printing of said photosensitive drums (1) to the surface of said photosensitive drums (1); It is characterized in that; Said Developing box comprises also and is used for finishing the back to the disappear discharge system of electricity of said photosensitive drums (1) in said photosensitive drums (1) transfer printing that said discharge system is arranged in the back or said waste powder hopper of said cleaning device.
2. Developing box according to claim 1; It is characterized in that; Said discharge system comprises the electric light that disappears; And be used for that the light that the said electric light that disappears sends is guided to said photosensitive drums (1) and make said photosensitive drums (1) blanket exposure and the hollow glass rod (2) of the electricity that disappears, said hollow glass rod (2) laterally arranges with said photosensitive drums (1).
3. Developing box according to claim 1; It is characterized in that; Said discharge system is the electric roller (3) that disappears, and the said electric roller (3) that disappears laterally arranges with said photosensitive drums (1), and the polarity of the residual charge that the surface electric charge of the said electric roller (3) that disappears and said photosensitive drums (1) are surperficial is opposite.
4. according to each described Developing box of claim 1 to 3, it is characterized in that said cleaning device comprises a cleaning doctor (4), said cleaning doctor (4) is positioned at the place ahead of said cleaning device.
5. Developing box according to claim 4 is characterized in that, said charging device is a charging roller (5), and said charging roller (5) laterally arranges with said photosensitive drums (1), and said charging roller (5) is positioned at the place ahead of said cleaning doctor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202482299U CN202126572U (en) | 2011-07-14 | 2011-07-14 | Developing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202482299U CN202126572U (en) | 2011-07-14 | 2011-07-14 | Developing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202126572U true CN202126572U (en) | 2012-01-25 |
Family
ID=45489638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202482299U Expired - Fee Related CN202126572U (en) | 2011-07-14 | 2011-07-14 | Developing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202126572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376859A (en) * | 2019-06-03 | 2019-10-25 | 中船重工汉光科技股份有限公司 | A kind of photosensitive drums residual risk safety elimination instrument |
-
2011
- 2011-07-14 CN CN2011202482299U patent/CN202126572U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376859A (en) * | 2019-06-03 | 2019-10-25 | 中船重工汉光科技股份有限公司 | A kind of photosensitive drums residual risk safety elimination instrument |
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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 |
Granted publication date: 20120125 Termination date: 20200714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |