Fixing method for a wet process copier
US4987457A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1990 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Jan 3, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2057
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing method for a wet process copier which develops an electrostatic latent image by using a heat-bridging type toner, transfers the resulting toner image to a paper sheet, and fixes the toner image transferred on the paper sheet by transporting the paper sheet through a nipping section defined by a heating roller and a pressing roller such that the side of the paper sheet carrying the toner image directly contacts the heating roller. At least a surface portion of the heating roller is made of either one of monomeric, additive-free RTV (Room Temperature Vulcanized) and LTV (Low Temperature Vulcanized) silicone rubbers. The heating roller has average surface roughness of less than 3 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.