CN204287736U - A kind of low moment of torsion developer roll - Google Patents
A kind of low moment of torsion developer roll Download PDFInfo
- Publication number
- CN204287736U CN204287736U CN201420728966.2U CN201420728966U CN204287736U CN 204287736 U CN204287736 U CN 204287736U CN 201420728966 U CN201420728966 U CN 201420728966U CN 204287736 U CN204287736 U CN 204287736U
- Authority
- CN
- China
- Prior art keywords
- roll body
- torsion
- roll
- groove
- utility
- 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
Links
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
The utility model discloses and 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 utility model comprises 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), the hardness of the radial direction at the two ends of the felt contacts established in described roll body (1) and printer powdered carbon box 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 powdered carbon box.The utility model is applicable to laser carbon dust printing device field.
Description
Technical field
The utility model 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.
Utility model content
Technical problem to be solved in the utility model 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 scheme that the utility model adopts is: the utility model comprises 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 beneficial effects of the utility model are: due in the utility model, 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 utility model;
Fig. 2 is planing surface schematic diagram of the present utility model.
Embodiment
As shown in Figure 1 and Figure 2, the utility model comprises 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 utility model 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 |
|---|---|---|---|
| CN201420728966.2U CN204287736U (en) | 2014-11-28 | 2014-11-28 | A kind of low moment of torsion developer roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728966.2U CN204287736U (en) | 2014-11-28 | 2014-11-28 | A kind of low moment of torsion developer roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204287736U true CN204287736U (en) | 2015-04-22 |
Family
ID=52870881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420728966.2U Expired - Fee Related CN204287736U (en) | 2014-11-28 | 2014-11-28 | A kind of low moment of torsion developer roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204287736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330962A (en) * | 2014-11-28 | 2015-02-04 | 珠海展望打印耗材有限公司 | Low-torque developing roller |
-
2014
- 2014-11-28 CN CN201420728966.2U patent/CN204287736U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330962A (en) * | 2014-11-28 | 2015-02-04 | 珠海展望打印耗材有限公司 | Low-torque developing roller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204287736U (en) | A kind of low moment of torsion developer roll | |
| CN201353907Y (en) | Printer capable of adapting to medium thickness | |
| CN104330962A (en) | Low-torque developing roller | |
| CN101480885B (en) | Character impression device with self-adapting medium thickness | |
| CN203697136U (en) | Longitudinal folding punching knife for rotating folder | |
| CN204773638U (en) | 3D printer is with winding charging tray | |
| CN203395177U (en) | Novel toner box sealing plug | |
| CN202649680U (en) | Felt sealing type carbon powder box | |
| CN201836247U (en) | Cross bag assembly structure with adjustable axial elasticity | |
| CN204547297U (en) | A kind of high accurancy and precision imprinting apparatus be applied in printing machine | |
| CN207224852U (en) | A kind of photo developing and printing machine backspin rolls | |
| CN202242361U (en) | Paper pressing assembly and printer treatment box | |
| CN206644024U (en) | A kind of platen wheel construction of brown paper cutting machine | |
| CN202533717U (en) | Plastic terminal for cartridge of printer | |
| CN207772664U (en) | A kind of antifatigue deformation printer axle | |
| CN203930337U (en) | A kind of handle box | |
| CN204367591U (en) | A kind of Novel pressure paper apparatus | |
| CN204136594U (en) | A kind of printer feeding-in roll | |
| CN202989677U (en) | Packing copy paper | |
| CN202472246U (en) | Doctor blade | |
| CN203337999U (en) | New developing roller | |
| CN203209946U (en) | Roll shaft automatic pressing assembly machine | |
| CN202771157U (en) | Carbon powder box structure | |
| CN203557835U (en) | Universal supporting bracket for cable of printing equipment | |
| CN208283727U (en) | A kind of HP CF287A/X Series Universal cartridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20191128 |