Heat fixing apparatus for use in a wet electrophotographic copying machine
US4059394A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1975 |
| Grant date | Nov 22, 1977 |
| Priority date | — |
| Expiry date | Sep 2, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2014
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The apparatus heat fixes a toner image on one surface of a wet-developed, image-carrying copy sheet while maintaining the opposite surface of the sheet in sliding contact with the surface of a heated plate. A portion of the heating surface is formed with a concave surface, or a curved surface having a positive curvature, and there is provided a guide roller for introducing the sheet onto the curved surface. When introduced onto the curved surface, the sheet achieves a good sliding contact with the heating surface by virtue of its resiliency without application of a back pressure thereto, thus accomplishing an efficient heat fixing without any accompanying degradation in the image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.