Roller fixing device
US4375327A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1981 |
| Grant date | Mar 1, 1983 |
| Priority date | — |
| Expiry date | Dec 9, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S271/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A roller fixing device wherein a claw member facing a pressure roller is arranged so that the distance between the contact point of a roller and a pressure roller and the top end portion of said claw member be within 6.5 mm on the pressure roller periphery and an angle between a tangential line of the pressure roller at a point where said top end portion of said claw member contacts under pressure with said pressure roller and the upper edge of said claw member be at least 45 degrees. Said roller is a heat roller including a heater therein. An electrophotographic copying machine which comprises: a charge receptor, a latent image forming means for forming an electrostatic latent image on said charge receptor, a developing means for developing said electrostatic latent image, a transferring means for transferring said developed image to a transfer material, and said roller fixing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.