CN203149268U - Powder discharging cutter for carbon powder box for laser printer - Google Patents
Powder discharging cutter for carbon powder box for laser printer Download PDFInfo
- Publication number
- CN203149268U CN203149268U CN 201320149636 CN201320149636U CN203149268U CN 203149268 U CN203149268 U CN 203149268U CN 201320149636 CN201320149636 CN 201320149636 CN 201320149636 U CN201320149636 U CN 201320149636U CN 203149268 U CN203149268 U CN 203149268U
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- CN
- China
- Prior art keywords
- powder
- knife rest
- laser printer
- discharging cutter
- developer roll
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a powder discharging cutter for a carbon powder box for a laser printer. The powder discharging cutter comprises a metal knife rest (1) and a plastic blade (2) with one end which is fixed at one end of the metal knife rest. The powder discharging cutter is characterized in that the surface of a free end of the plastic blade (2) is elastically pressed at the outer edge of a developing roller (3) along the radial direction of the developing roller (3); and the free end exceeds a pressing point by 1.2mm. According to the powder discharging cutter disclosed by the utility model, the possibility of deforming the metal knife rest is alleviated and the consistency of the imaging quality is realized; and meanwhile, the problems that the powder consumption amount of each page is great and the page yield is low are solved.
Description
Technical field
The utility model relates to a kind of powder delivery cutter of cartridge of laser printer.
Background technology
Usually, the cartridge for laser printer comprises developing frame, drum frame, developer roll, powder delivery cutter, photosensitive drums etc.Developing frame has the powder storehouse that can be used for holding carbon dust; Drum frame has the waste powder hopper that can be used for holding useless powder; The photosensitive drums that is rotatably installed on the drum frame is used to form electrostatic latent image; Developer roll rotatably is fixed in the developing frame two side; Cartridge adopts to come powder outlet quantity is controlled with the powder delivery cutter that certain pressure contacts with developer roll, the powder delivery cutter is arranged on a side of developer roll, be fixed in box body by screw, 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.The powder delivery cutter generally comprises metal knife rest and plastic blade, this blade away from the free end surface of knife rest one end 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 to be had about 2mm, and forms storage powder space between the circumferential surface of developer roll; This free-ended end points is set to a fixed value to the distance at the point of contact of plastic blade and developer roll according to powder outlet quantity, and importantly, the powder delivery cutter should form uniform the contact with developer roll by the pressure by unanimity on the whole length of developer roll.When shifting carbon dust, if the powder delivery cutter then makes inhomogeneous carbon dust amount transfer on the photosensitive drums with inconsistent pressure contact developer roll, cause image quality inconsistent, technical matterss such as bottom ash, the page or leaf powder consumption is big, page or leaf yields poorly appear through regular meeting.
Summary of the invention
Technical problem underlying to be solved in the utility model is to provide a kind of powder delivery cutter of cartridge of laser printer, and it can reduce the possibility that its metal knife rest produces distortion, is embodied as the picture uniform quality.
For solving above-mentioned technical problem underlying, the powder delivery cutter of the cartridge of a kind of laser printer that the utility model provides comprises that metal knife rest and an end are fixed on the plastic blade of this metal knife rest one end; The free end surface of described plastic blade along the radial elastic of developer roll be pressed on the outer rim of developer roll, and free end exceeds the plussage that compresses some 1.2mm is arranged.
Adopt said structure, because at the plastic blade of the powder delivery cutter of cartridge, its free end is shortened, pressure stores up the minimizing of powder space then owing to the shortening of plastic blade increases; Like this, increased pressure forms more even, stable contacting with developer roll, has offset its metal knife rest and has produced the possibility of distortion, adds 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.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the positional structure synoptic diagram of the utility model powder delivery cutter.
Fig. 2 is the utility model powder delivery cutter and developer roll contacting structure synoptic diagram.
Among the figure: 1 metal knife rest; 2 plastic blades; 3 developer rolls.
Embodiment
Shown in Fig. 1-2, a kind of powder delivery cutter of cartridge of laser printer comprises that metal knife rest 1 and an end are fixed on the plastic blade 2 of this metal knife rest one end; It is characterized in that: the free end surface of described plastic blade 2 along the radial elastic of developer roll 3 be pressed on the outer rim of developer roll 3, and free end exceeds the plussage that compresses some 1.2mm is arranged.
Claims (1)
1. the powder delivery cutter of the cartridge of a laser printer comprises that metal knife rest (1) and an end are fixed on the plastic blade (2) of this metal knife rest one end; It is characterized in that: the free end surface of described plastic blade (2) along the radial elastic of developer roll (3) be pressed on the outer rim of developer roll (3), and free end exceeds the plussage that compresses some 1.2mm is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320149636 CN203149268U (en) | 2013-03-29 | 2013-03-29 | Powder discharging cutter for carbon powder box for laser printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320149636 CN203149268U (en) | 2013-03-29 | 2013-03-29 | Powder discharging cutter for carbon powder box for laser printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203149268U true CN203149268U (en) | 2013-08-21 |
Family
ID=48976783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320149636 Expired - Fee Related CN203149268U (en) | 2013-03-29 | 2013-03-29 | Powder discharging cutter for carbon powder box for laser printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203149268U (en) |
-
2013
- 2013-03-29 CN CN 201320149636 patent/CN203149268U/en not_active Expired - Fee Related
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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 Technology Printed Material Co.,Ltd. Address before: Standard workshop 423400 Jiangbei Industrial Park Chenzhou city Hunan province Zixing Economic Development Zone 1 Patentee before: Zixing Heshun Technology Printed 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 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |