Heat roller for electrophotographic copying machine
US4796049A · kind A · utility
5Cited by
0References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1988 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Mar 21, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2057
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A surface of a heated fixing roller is coated with a tetrafluoroethylene resin in which pin holes are present in the range of about 5-30 unit/cm.sup.2 and the diameter of the pin holes is in the range of about 5-20 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.