CN2854652Y - Carbon powder cartriage for laser printer - Google Patents
Carbon powder cartriage for laser printer Download PDFInfo
- Publication number
- CN2854652Y CN2854652Y CN 200520131977 CN200520131977U CN2854652Y CN 2854652 Y CN2854652 Y CN 2854652Y CN 200520131977 CN200520131977 CN 200520131977 CN 200520131977 U CN200520131977 U CN 200520131977U CN 2854652 Y CN2854652 Y CN 2854652Y
- Authority
- CN
- China
- Prior art keywords
- powder
- developer roll
- delivery cutter
- powder delivery
- cartridge
- 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 - Lifetime
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- Dry Development In Electrophotography (AREA)
Abstract
The utility model relates to a carbon powder drum of laser printer. The carbon powder drum includes a developing unit which is composed of a developing roller, a powder-feeding roller, a powder-outputting blade and a carbon powder chamber and is in active or fixed connecting with a treating unit (including a photosensitive drum). One end of the powder-outputting blade is fixed onto a cantilever which extends from the frame of the carbon powder drum, and the other end is a free end and in elastic contact with the developing roller surface. The powder-outputting blade is at the downstream of the developing roller surface contact point along the powder-feeding direction of the developing roller. An arc-shaped cross section is provided to the free end of the powder-outputting blade perpendicular to developing roller axis. Secant plane of the dummy extending plane of the powder-outputting blade and the developing roller is away from the mean axis of the developing roller. The carbon powder drum can reduce scraped damage between the powder-outputting blade and the developing roller.
Description
Technical field
The utility model relates to carbon powder cartridge for laser printer, the Delevoping cartridge that can separate with the fixation unit at the transfer printing unit at laser scan unit, transfer roll place and fixing roller place particularly, the electrostatic latent image that is used for that photosensitive drums is produced forms the visual image by developers such as carbon dust record.
Background technology
Common Equipment for forming image comprises duplicating machine, laser printer, facsimile recorder, colour band printer and LED printer etc.
At the Equipment for forming image of laser scanning or laser photo-typesetting form, carbon dust is the final image forming medium of realization figure---light------figure conversion.Usually, the developer roll of drum, powder integral type imaging device just is arranged at around the photosensitive drums, is formed on the photosensitive drums in order to the carbon dust image.The carbon dust of developer roll is from toner.The Chu Fenliang of toner is subjected to the warehouse capacity limitation, therefore, must be provided by the Delevoping cartridge or the cartridge of special use after the carbon dust in the powder storehouse is used up.
The major function piece that laser image forms device comprises: laser scan unit, photoelectric conversion unit, charhing unit, developing cell, transfer printing unit and fixation unit.The main member of laser scan unit is laser generator and light reflection and transmission system.The main member of photoelectric conversion unit is a 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 to store carbon dust.Transfer printing unit mainly comprises transfer roll.Fixation unit is made of warm-up mill and backer roll.Common cartridge or handle box generally include photoelectric conversion unit, charhing unit, developing cell.Also have photoelectric conversion unit, charhing unit directly are arranged on the laser image formation device main frame, cartridge then only comprises developing cell, forms the laser image that the device main frame forms assembly assembling by cartridge that only comprises developing cell and laser image and forms device.
Under cartridge was packed the user mode of laser printer into, photosensitive drum surface was charged equably by charging roller.Laser scanner is launched the laser through ovennodulation that contains image information to photosensitive drums, forms and the electrostatic latent image for the treatment of that duplicating image is corresponding at photosensitive drum surface.Afterwards, 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, replace to transfer roll at the visual image that photosensitive drum surface forms by carbon dust.Through the effect of transfer roll transfer voltage, visual image is transferred on the recording medium such as paper, with after after warm-up mill and backer roll carry out heating and pressurizing to the visual image on the recording medium, the visual image full solidification that carbon dust is formed is on recording medium.Finish a basic imaging operation like this.
In above-mentioned print procedure, convert the electrostatic latent image on the photosensitive drums to visual image, must depend on the adsorbed carbon dust of developer roll.These carbon dusts are stored in the toner, and by the transport supply of powder feeding roller realization to developer roll.Shown in Fig. 1,2,3,4, during work, cartridge 1 is by the driving of corresponding external power supply, and powder feeding roller 5 is transported to the carbon dust in the toner 7 by arrow directions X shown in Figure 2 the zone of being pollinated of developer roll 4.Developer roll 4 is adsorbed in its region surface of being pollinated by the Electrostatic Absorption effect with carbon dust, simultaneously according to arrow Y direction rotation shown in Figure 2, and then by the adjustment of carbon dust layer thickness adjustment sheet (weighing up the powder cutter again) 6 the carbon dust layer thickness is limited in suitable scope.Afterwards, developer roll 4 continues to rotate along the Y direction, to be converted to the bulging face that photosensitive drums 3 process Laser Modulation have electrostatic latent image through the carbon dust layer of thickness adjusted, will turn round to transfer position by the visual image that carbon dust develops according to arrow Z direction rotation shown in Figure 2 by photosensitive drums 3.By exchange visual image is transformed into subsequently on the recording mediums such as paper with the transfer printing unit (not shown).
The utility model content
The utility model purpose provides a kind of carbon powder cartridge for laser printer that can effectively reduce powder delivery cutter and developer roll skin-friction effect.
According to above-mentioned purpose, carbon powder cartridge for laser printer of the present utility model comprises the developing cell that is made of developer roll 4, powder feeding roller 5, powder delivery cutter 6 and toner 7 at least.Keep between the processing unit at this developing cell and photosensitive drums 3 places flexibly connecting or fixedlying connected.One end 6` of powder delivery cutter 6 is fixed in from the cartridge framework 2 on the extended cantilever 2`, and its other end is and developer roll 4 surfaces keep the free ends of Elastic Contact.Powder delivery cutter 6 integral body are positioned at downstream one side of developer roll 4 outside surface contact position 4` along developer roll 4 powder feeding direction Y.Above-mentioned and developer roll 4 surfaces keep the free end of the powder delivery cutter 6 of Elastic Contact to be circular arc on the cross section axial perpendicular to developer roll 4.The virtual extension plane 6`` of powder delivery cutter 6 blades and the face of developer roll 4 do not pass through the axis of developer roll 4.
Optimally, the face of the virtual extension plane 6`` of powder delivery cutter 6 blades and above-mentioned circular arc does not pass through the axis of this circular arc.
Preferably, the face of the virtual extension plane 6`` of powder delivery cutter 6 blades and above-mentioned circular arc is by the axis of this circular arc.
Further, above-mentioned circular arc is a kind of fracture annulus.This fracture of going back annulus is positioned at downstream one side of powder delivery cutter 6 blades along developer roll 4 powder feeding direction Y.
Further, above-mentioned circular arc is a kind of fracture annulus.This fracture of going back annulus is positioned at upstream one side of powder delivery cutter 6 blades along developer roll 4 powder feeding direction Y.
The powder delivery cutter that the utility model carbon powder cartridge for laser printer adopts, the free end that itself and developer roll come in contact is improved to circular shape, the curved surface way of contact is changed in the some way of contact between the two, both are improved largely at the contact smoothness properties of contact.Like this, can reduce on the one hand because the scraping that the some contact causes, the free end of this circular shape can rely on the elastic deformation of the stressed generation of circular arc on the other hand, applies stable and contacts elastic force reliably to developer roll.
The drawing explanation
Fig. 1 has carbon powder cartridge for laser printer face shaping synoptic diagram now.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Partial enlarged drawing after Fig. 5 the utility model carbon powder cartridge for laser printer embodiment one analyses and observe along the A-A line, it analyses and observe the position corresponding to Fig. 2.
Fig. 6 is the partial enlarged drawing of Fig. 5.
The powder delivery knife structure synoptic diagram that Fig. 7 the utility model carbon powder cartridge for laser printer embodiment one uses.
Partial enlarged drawing after Fig. 8 the utility model carbon powder cartridge for laser printer embodiment two analyses and observe along the A-A line, it analyses and observe the position corresponding to Fig. 2.
Partial enlarged drawing after Fig. 9 the utility model carbon powder cartridge for laser printer embodiment three analyses and observe along the A-A line, it analyses and observe the position corresponding to Fig. 2.
Embodiment
Fig. 1,5,6,7,8,9 illustrates the structural diagrams under the different embodiment different conditions of the utility model respectively, and wherein the same configuration relation is used identical mark.In order to save the instructions length and to reach succinct purpose, the utility model has omitted diagram and the explanatory note of cartridge with relevant processing unit annexation, then emphasis is described the relevant powder delivery cutter 6 that is used to adjust the carbon dust layer thickness in the cartridge.Relevant processing unit is the detailed description of photosensitive drums, laser scanning system, transfer roll, photographic fixing rod etc. for example, and the reader can consult for example 00106749 Chinese invention patent instructions of prior art.
Referring to Fig. 1,2,5,6,7, carbon powder cartridge for laser printer first embodiment of the present utility model, the developing cell that its developing cell is made of developer roll 4, powder feeding roller 5, powder delivery cutter 6 and toner 7 at least.Keep flexibly connecting by latching between the processing unit at this developing cell and photosensitive drums 3 places, perhaps form both fixedly connected.
Referring to Fig. 1,2,8, carbon powder cartridge for laser printer second embodiment of the present utility model, the developing cell that its developing cell is made of developer roll 4, powder feeding roller 5, powder delivery cutter 6 and toner 7 at least.Keep flexibly connecting by latching between the processing unit at this developing cell and photosensitive drums 3 places, perhaps form both fixedly connected.
Referring to Fig. 1,2,9, carbon powder cartridge for laser printer the 3rd embodiment of the present utility model, in this embodiment, cartridge and basic identical to the primary structure and carbon powder cartridge for laser printer of the present utility model second embodiment of corresponding component parts, unique difference are that the fracture 63` of free end 63 annulus is positioned at upstream one side that powder delivery cutter 6 blades point to developer roll 4 powder feeding direction Y.
Claims (5)
1. carbon powder cartridge for laser printer, comprise at least by developer roll (4), powder feeding roller (5), the developing cell that powder delivery cutter (6) and toner (7) constitute, keep between the processing unit at described developing cell and photosensitive drums (3) place flexibly connecting or fixedlying connected, one end (6`) of described powder delivery cutter (6) is fixed in from cartridge framework (2) to be gone up on the extended cantilever (2`), its other end is the free end that keeps Elastic Contact with developer roll (4) surface, described powder delivery cutter (6) integral body is positioned at downstream one side of developer roll (4) outside surface contact position (4`) along developer roll (4) powder feeding direction (Y), the free end that it is characterized in that the described powder delivery cutter (6) of described and developer roll (4) surface maintenance Elastic Contact is circular arc on the cross section axial perpendicular to developer roll (4), the virtual extension plane (6``) of described powder delivery cutter (6) blade and the face of described developer roll (4) do not pass through the axis of described developer roll (4).
2. carbon powder cartridge for laser printer according to claim 1, the virtual extension plane (6``) that it is characterized in that described powder delivery cutter (6) blade and the face of described circular arc be the axis by described circular arc.
3. carbon powder cartridge for laser printer according to claim 1, virtual extension plane (6``) that it is characterized in that described powder delivery cutter (6) blade and the axis of the face of described circular arc by described circular arc.
4. according to claim 2 or 3 described carbon powder cartridge for laser printer, it is characterized in that described circular arc is the fracture annulus, described fracture is positioned at downstream one side of described powder delivery cutter (6) blade along developer roll (4) powder feeding direction (Y).
5. according to claim 2 or 3 described carbon powder cartridge for laser printer, it is characterized in that described circular arc is the fracture annulus, described fracture is positioned at upstream one side of described powder delivery cutter (6) blade along developer roll (4) powder feeding direction (Y).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520131977 CN2854652Y (en) | 2005-10-29 | 2005-10-29 | Carbon powder cartriage for laser printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520131977 CN2854652Y (en) | 2005-10-29 | 2005-10-29 | Carbon powder cartriage for laser printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854652Y true CN2854652Y (en) | 2007-01-03 |
Family
ID=37581289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520131977 Expired - Lifetime CN2854652Y (en) | 2005-10-29 | 2005-10-29 | Carbon powder cartriage for laser printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854652Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106527082A (en) * | 2016-12-29 | 2017-03-22 | 珠海天威飞马打印耗材有限公司 | Cartridge |
-
2005
- 2005-10-29 CN CN 200520131977 patent/CN2854652Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106527082A (en) * | 2016-12-29 | 2017-03-22 | 珠海天威飞马打印耗材有限公司 | Cartridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070103 |
|
| EXPY | Termination of patent right or utility model |