CN104330962A - Low-torque developing roller - Google Patents
Low-torque developing roller Download PDFInfo
- Publication number
- CN104330962A CN104330962A CN201410701522.4A CN201410701522A CN104330962A CN 104330962 A CN104330962 A CN 104330962A CN 201410701522 A CN201410701522 A CN 201410701522A CN 104330962 A CN104330962 A CN 104330962A
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- CN
- China
- Prior art keywords
- roll body
- roll
- groove
- toner cartridge
- low
- 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.)
- Pending
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0808—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer supplying means, e.g. structure of developer supply roller
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
The invention discloses and provides a low-torque developing roller capable of reducing the whole torque of a printer selenium drum, prolonging the service life of a printing device and ensuring the printing quality of the printing device. The low-torque developing roller comprises a roller body (1) and a roller shaft (2) which passes through the roller body (1), wherein grooves (3) are respectively formed in the end surfaces of two ends of the roller body (1), so that the radial hardness of two ends, which is in contact with a felt in a toner cartridge of the printer, of the roller body (1) is reduced; when the developing roller works, the friction force between the felt and the roller body (1) is reduced, so that the whole torque of the toner cartridge is reduced. The low-torque developing roller is applied to the field of laser toner printing devices.
Description
Technical field
The present invention relates to a kind of low moment of torsion developer roll.
Background technology
The roll body of the developer roll adopting at present the toner cartridge of contact type developing mode to use on the market is all the plain solid roll bodies of both ends of the surface mostly, therefore the hardness at the two ends of developer roll is relatively partially hard, make the friction force between developer roll with felt larger, and this friction force is larger, the overall moment of torsion of toner cartridge is also larger, this will cause the phenomenons such as hard copy face has the gear of more serious gear line, the motionless toner cartridge of printing device band or printing device to be exploded, and this has had a strong impact on the serviceable life of quality and the printing device printed.Improve mainly through two kinds of methods in the market for this phenomenon, the first uses as the good materials such as frog glue class manufacture developer roll to reduce hardness, but shortcoming is expensive; The second developer roll colloid overall length is shortened reduce with the surface of contact of felt to reduce friction force, but this just affects the sealing of toner cartridge entirety, easily occurred powder phenomenon in process of production, thus have influence on print quality at felt place.
Summary of the invention
Technical matters to be solved by this invention overcomes the deficiencies in the prior art, provides a kind of low moment of torsion developer roll that also can ensure the print quality of printing device serviceable life reducing the overall moment of torsion of printer toner cartridge, extend printing device.
The technical solution adopted in the present invention is: the present invention includes roll body and the roll shaft through described roll body, groove is respectively equipped with at the end face at the two ends of described roll body, the hardness of the radial direction at the two ends of the felt contacts established in described roll body and toner cartridge is reduced, during described developer roll work, reduce the friction force between described felt and described roll body, and then reduce the overall moment of torsion of described toner cartridge.
Described groove is circumferential groove, described groove respectively with described roll body and roll shaft concentric, and its radius is less than the radius of described roll body and is greater than the radius of described roll shaft.
The fluting direction of described groove is the inside of the end face from described roll body two ends to described roll body, and the degree of depth of described groove is two millimeters.
The invention has the beneficial effects as follows: due in the present invention, the end face at the two ends of roll body is provided with circumferential groove, therefore make the hardness of the radial direction at the two ends of roll body low relative to solid roll body, so when toner cartridge works, the just relative reduction of friction force between developer roll with felt, and then the overall moment of torsion of toner cartridge is lowered, thus reach the serviceable life the effect that can ensure the print quality of printing device that extend printing device.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is planing surface schematic diagram of the present invention.
Embodiment
As shown in Figure 1 and Figure 2, the present invention includes roll body 1 and the roll shaft 2 through described roll body 1, groove 3 is respectively equipped with at the end face at the two ends of described roll body 1, described groove 3 is circumferential groove, described groove 3 respectively with described roll body 1 and roll shaft 2 concentric, and its radius is less than the radius of described roll body 1 and is greater than the radius of described roll shaft 2.The fluting direction of described groove 3 is the inside of the end face from described roll body 1 two ends to described roll body 1, and the degree of depth of described groove 3 is two millimeters.
The end face at the two ends of described roll body 1 is provided with described groove 3 respectively, the radial stiffness at the two ends of the felt contacts established in described roll body 1 and toner cartridge is reduced, thus when described developer roll work, lower the friction force between described felt and described roll body 1, and then reduce the moment of torsion of entirety of described toner cartridge.
The present invention is applicable to laser carbon dust printing device field.
Claims (3)
1. one kind low moment of torsion developer roll, it comprises roll body (1) and the roll shaft (2) through described roll body (1), it is characterized in that: be respectively equipped with groove (3) at the end face at the two ends of described roll body (1), the hardness of the radial direction at the two ends of the felt contacts established in described roll body (1) and toner cartridge is reduced, during described developer roll work, reduce the friction force between described felt and described roll body (1), and then reduce the overall moment of torsion of described toner cartridge.
2. the low moment of torsion developer roll of one according to claim 1, it is characterized in that: described groove (3) is circumferential groove, described groove (3) respectively with described roll body (1) and roll shaft (2) concentric, and its radius is less than the radius of described roll body (1) and is greater than the radius of described roll shaft (2).
3. the low moment of torsion developer roll of one according to claim 1, is characterized in that: the fluting direction of described groove (3) is the inside of the end face from described roll body (1) two ends to described roll body (1), and the degree of depth of described groove (3) is two millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410701522.4A CN104330962A (en) | 2014-11-28 | 2014-11-28 | Low-torque developing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410701522.4A CN104330962A (en) | 2014-11-28 | 2014-11-28 | Low-torque developing roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104330962A true CN104330962A (en) | 2015-02-04 |
Family
ID=52405710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410701522.4A Pending CN104330962A (en) | 2014-11-28 | 2014-11-28 | Low-torque developing roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104330962A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091528A (en) * | 1992-09-04 | 1994-08-31 | 佳能株式会社 | Handle the method and the image device of magazine, assembling processing magazine |
| CN1444114A (en) * | 2002-02-22 | 2003-09-24 | 佳能株式会社 | Processing box and isolating parts for processing box |
| CN2821621Y (en) * | 2005-07-07 | 2006-09-27 | 珠海天威飞马打印耗材有限公司 | Carbon powder cartidge of laser printer |
| CN201681255U (en) * | 2008-11-28 | 2010-12-22 | 兄弟工业株式会社 | Developing device and image forming device |
| CN202267826U (en) * | 2011-10-25 | 2012-06-06 | 珠海天威飞马打印耗材有限公司 | Developing magnetic roller aluminum pipe and printer |
| CN103293911A (en) * | 2012-02-23 | 2013-09-11 | 株式会社理光 | Developing device, image forming apparatus, and processing cartridge |
| CN103472697A (en) * | 2013-09-12 | 2013-12-25 | 珠海天威飞马打印耗材有限公司 | Developing roller and developing box |
| CN204287736U (en) * | 2014-11-28 | 2015-04-22 | 珠海展望打印耗材有限公司 | A kind of low moment of torsion developer roll |
-
2014
- 2014-11-28 CN CN201410701522.4A patent/CN104330962A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091528A (en) * | 1992-09-04 | 1994-08-31 | 佳能株式会社 | Handle the method and the image device of magazine, assembling processing magazine |
| CN1444114A (en) * | 2002-02-22 | 2003-09-24 | 佳能株式会社 | Processing box and isolating parts for processing box |
| CN2821621Y (en) * | 2005-07-07 | 2006-09-27 | 珠海天威飞马打印耗材有限公司 | Carbon powder cartidge of laser printer |
| CN201681255U (en) * | 2008-11-28 | 2010-12-22 | 兄弟工业株式会社 | Developing device and image forming device |
| CN202267826U (en) * | 2011-10-25 | 2012-06-06 | 珠海天威飞马打印耗材有限公司 | Developing magnetic roller aluminum pipe and printer |
| CN103293911A (en) * | 2012-02-23 | 2013-09-11 | 株式会社理光 | Developing device, image forming apparatus, and processing cartridge |
| CN103472697A (en) * | 2013-09-12 | 2013-12-25 | 珠海天威飞马打印耗材有限公司 | Developing roller and developing box |
| CN204287736U (en) * | 2014-11-28 | 2015-04-22 | 珠海展望打印耗材有限公司 | A kind of low moment of torsion developer roll |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150204 |
|
| RJ01 | Rejection of invention patent application after publication |