CN203149270U - Carbon powder box of improved laser printer - Google Patents
Carbon powder box of improved laser printer Download PDFInfo
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- CN203149270U CN203149270U CN 201320153759 CN201320153759U CN203149270U CN 203149270 U CN203149270 U CN 203149270U CN 201320153759 CN201320153759 CN 201320153759 CN 201320153759 U CN201320153759 U CN 201320153759U CN 203149270 U CN203149270 U CN 203149270U
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- powder
- box
- developer roll
- powder delivery
- laser printer
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Abstract
The utility model relates to a carbon powder box of an improved laser printer. The carbon powder box comprises a box shell (1), a developing roller (2), a powder-discharging blade (3), a photosensitive drum (4) and a charging roller (12), wherein channels (8 and 9) extending from the interior of a box-shaped powder-discharging cavity (7) to the exterior of the shell are respectively reserved at two ends of the box-shaped powder-discharging cavity (7) between a port of a powder bin (5) and a drum frame (6); plugging devices are arranged on the two channels (8 and 9); the surface of a free end of the powder-discharging blade arranged at one side of the developing roller (2) elastically abuts against the circumferential surface of the developing roller (2) along the radial direction of the developing roller (2); and the free end is 1.2mm higher than an abutting point. By using the carbon powder box, the uniformity of the powder-discharging quantity of the carbon powder box can be kept, the remaining testing powder of the carbon powder box can be conveniently removed, the production and the operation are simple and convenient, the working production efficiency is high, and meanwhile, the imaging quality is good.
Description
Technical field
The utility model relates to the main accessories of laser printer in a kind of office equipment, specifically the cartridge of modified laser printer.
Background technology
Usually, the major function piece of the cartridge of drum, powder integral type laser printer comprises: photoelectric conversion unit, charhing unit, developing cell.The main member of photoelectric conversion unit is photosensitive drums.Charhing unit mainly comprises the charging roller of positive charge grid-control formula corona charging roller or other form.Developing cell is made of the storage powder chamber, developing room and the developer roll that are used for the storage carbon dust.Developer roll and powder delivery cutter are chargeable so that carbon dust is electrically charged, thereby carbon dust can be transferred on the photosensitive drums by the effect of electric field force, and the carbon dust layer thickness of developer roll surface deposition is by the Elastic Contact control on powder delivery cutter and developer roll surface.The visible powder delivery cutter of prior art generally comprises metal knife rest and plastic blade, the free end surface of plastic blade along the radial elastic of developer roll be pressed on the circumferential surface of developer roll, the tangent formation angle in the plane at free end place and developer roll surface; And the plussage that free end exceeds contact point has about 2mm, forms storage powder space between the circumferential surface of this part and developer roll; Importantly, free end and developer roll surface contact area are very little, almost are a kind of some contacts.Since the powder delivery cutter prerequisite elasticity determined it to have bigger hardness, cartridge its developer roll surface in long-term use will be subjected to the long-time friction of powder delivery cutter, cause the developer roll surface progressively to produce cut, cause developer roll surface carbon dust deposition inhomogeneous, or the white space that no carbon dust adsorbs occurs, and then have a strong impact on printing effect.If but the pressure of powder delivery cutter reduces, contact fully inadequately, can not well guarantee the control powder effect of powder delivery cutter again, make that to cause developer roll surface carbon dust deposition of thick thin inhomogeneous, this carbon dust layer is transferred on the photosensitive drums, can cause image quality inconsistent again.
In addition, in laser printer carbon powder box production run, after cartridge installs, need carry out comprehensive quality printing test to each cartridge.Because can not tear powder storehouse strip of paper used for sealing, just need add a small amount of test toner at developer roll, namely utilize a sharp mouth bottle that carbon dust is spread on the magnetic developer roll, and will be evenly distributed on its surface.Need surplus powder removing work after the test passes, otherwise surplus powder is in transportation, or the user can spill in using first between the cartridge seam of powder box, pollute packing and laser printer.The prior art solution has two kinds, and a kind of is to reduce to add test toner as far as possible, but test toner very little, just possibly can't satisfy the required carbon dust amount of printing test page or leaf, therefore, is difficult to hold in amount.Another kind of way is to print repeatedly adding the too many surplus powder of test toner, and expectation exhausts surplus powder, and repeated multiple times is wanted in this processing, not only consumes paper, and labor productivity is low, and is exactly a kind of meaningless loss to cartridge itself.
At the problems referred to above, on January 3rd, 2007, China utility model patent Granted publication CN 2854652Y discloses a kind of carbon powder cartridge for laser printer, just the position of powder delivery cutter is improved, it is positioned at powder delivery cutter integral body in developer roll outside surface contact position along downstream one side of developer roll powder feeding direction.Keep the free end of the powder delivery cutter of Elastic Contact being circular arc perpendicular to the axial cross section of developer roll with the developer roll surface.The virtual extension plane of powder delivery cutter blade and the face of developer roll depart from the developer roll axis, though this cartridge can reduce the scraping damage between powder delivery cutter and the developer roll.But this structure needs the cartridge box body to redesign, and the cartridge box body on the Chinese market is supporting ripe, so performance difficulty, and this cartridge does not also solve the handling problem of the surplus powder of test.
The utility model content
The purpose of this utility model is at the deficiencies in the prior art, and a kind of cartridge of modified laser printer is provided; It not only can keep the homogeneity of cartridge powder outlet quantity; Can also conveniently remove cartridge and test surplus powder, production operation is easy, the labor productivity height; Use the utility model simultaneously, image quality is good.
For solving above-mentioned technical problem underlying, the cartridge of the modified laser printer that the utility model provides comprises box housing, developer roll, powder delivery cutter, photosensitive drums and charging roller; The box housing has the powder storehouse that can be used for holding carbon dust, is used for installing the drum frame of photosensitive drums; The box powder delivery chamber that holds developer roll is arranged between powder Hatch Opening and drum frame; It is characterized in that at the two ends of described box powder delivery cavity shell, respectively be reserved with a duct of leading to the housing appearance in the described box powder delivery chamber respectively, plugging device is all arranged on two ducts; Described powder delivery cutter is arranged on a side of developer roll; Metal knife rest and plastic blade are arranged on the powder delivery cutter, the free end surface of plastic blade along the radial elastic of developer roll be pressed on the circumferential surface of developer roll; And free end exceeds the plussage that compresses a little 1.2mm.
Further, plugging device is the adhesive sticker bar on described two ducts.
Further, plugging device is soft plug on described two ducts.
The utility model production period, when carrying out comprehensive quality printing test, process means adds test toner routinely; After the test passes, open the plugging device on two ducts, wherein a duct is air-breathing to the brigadier with the negative pressure device for inhaling powdery substances, another duct nature return-air; Rotate on the toner cartridge magnetic roller and inhale once again, just surplus powder can be removed clean.Subsequently, shutoff two ducts get final product again.
When the utility model uses, because at the plastic blade of the powder delivery cutter of cartridge, exceed than its free end of prior art and to compress exceeding by amount shortening a little.Then forming storage powder space and between the circumferential surface of developer roll reduces, pressure is owing to the shortening of plastic blade increases, like this, increased pressure forms more uniform the contact with developer roll, offset its metal knife rest and produced the possibility of distortion, add that the carbon dust that is adsorbed on the developer roll reduces, the carbon dust of transfer printing correspondingly reduces, thereby avoids the problem of print quality to a great extent.Also overcome simultaneously the problem that the page or leaf powder consumption is big, page or leaf yields poorly.
The utility model beneficial effect compared with the prior art is: after 1. production and assembly are finished, when carrying out comprehensive quality printing test, can conveniently remove cartridge and test surplus powder, reduce the paper consumption, the labor productivity height.Through the practical operation check, can improve labor productivity more than 300%.2) by plastic blade free end length rationally is set, the carbon dust of transfer printing is correspondingly reduced, keep the homogeneity of cartridge powder outlet quantity; Also reduce the page or leaf powder consumption simultaneously significantly, reduced user's use cost.
Description of drawings
Fig. 1 is contour structures synoptic diagram of the present utility model.
Fig. 2 is inner structure synoptic diagram of the present utility model.
Fig. 3 is the utility model powder delivery cutter and developer roll contacting structure synoptic diagram.
Each several part title of the present utility model: 1 box housing; 2 developer rolls; 3 powder delivery cuttves; 3 photosensitive drums; 5 powder storehouses; 6 drum frames; 7 box powder delivery chambeies; 8,9 ducts; 10 metal knife rests; 11 plastic blades; 12 charging rollers.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Shown in Fig. 1-2, a kind of cartridge of modified laser printer comprises box housing 1, developer roll 2, powder delivery cutter 3, photosensitive drums 4 and charging roller 12; Box housing 1 has the powder storehouse 5 that can be used for holding carbon dust, is used for installing the drum frame 6 of photosensitive drums 4; The box powder delivery chamber 7 that holds developer roll 2 is arranged between powder Cang5Kou and drum frame 6; At the two ends of described box powder delivery chamber 7 housings, respectively being reserved with respectively on a duct 8 of leading to the housing appearance in the described box powder delivery chamber 7,9, two ducts 8,9 all has plugging device.
Fig. 3 represents that described powder delivery cutter 3 is arranged on a side of developer roll 2; Metal knife rest 10 and plastic blade 11 are arranged on the powder delivery cutter 3, the free end surface of plastic blade 11 along the radial elastic of developer roll 2 be pressed on the circumferential surface of developer roll 2; And free end exceeds the plussage that compresses a little 1.2mm.
Claims (3)
1. the cartridge of a modified laser printer comprises box housing (1), developer roll (2), powder delivery cutter (3), photosensitive drums (4) and charging roller (12); Box housing (1) has the powder storehouse (5) that can be used for holding carbon dust, is used for installing the drum frame (6) of photosensitive drums (4); Between powder storehouse (5) mouth and drum frame (6), the box powder delivery chamber (7) that holds developer roll (2) is arranged; It is characterized in that at the two ends of described box powder delivery chamber (7) housing respectively be reserved with a duct (8,9) of leading to the housing appearance in the described box powder delivery chamber (7) respectively, all there is plugging device in two ducts on (8,9); Described powder delivery cutter (3) is arranged on a side of developer roll (2); Metal knife rest (10) and plastic blade (11) are arranged on the powder delivery cutter (3), the free end surface of plastic blade (11) along the radial elastic of developer roll (2) be pressed on the circumferential surface of developer roll (2); And free end exceeds the plussage that compresses a little 1.2mm.
2. the cartridge of modified laser printer according to claim 1 is further characterized in that: described two ducts (8,9) go up plugging device is the adhesive sticker bar.
3. the cartridge of modified laser printer according to claim 1 is further characterized in that: described two ducts (8,9) go up plugging device is soft plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153759 CN203149270U (en) | 2013-03-29 | 2013-03-29 | Carbon powder box of improved laser printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153759 CN203149270U (en) | 2013-03-29 | 2013-03-29 | Carbon powder box of improved laser printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203149270U true CN203149270U (en) | 2013-08-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320153759 Expired - Fee Related CN203149270U (en) | 2013-03-29 | 2013-03-29 | Carbon powder box of improved laser printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203149270U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149819A (en) * | 2013-03-29 | 2013-06-12 | 资兴市和顺科技印材有限公司 | Carbon powder box for improved laser printer |
-
2013
- 2013-03-29 CN CN 201320153759 patent/CN203149270U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149819A (en) * | 2013-03-29 | 2013-06-12 | 资兴市和顺科技印材有限公司 | Carbon powder box for improved laser printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 423000 Chenzhou City, Hunan province Zixing Economic Development Zone Jiangbei Industrial Park Innovation Base (Dream Park 9) Patentee after: Zixing Heshun Science and Technology Printing material Co., Ltd. Address before: Standard workshop 423400 Jiangbei Industrial Park Chenzhou city Hunan province Zixing Economic Development Zone 1 Patentee before: Zixing Heshun Science and Technology Printing material Co., Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20190329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |