Offset preventive diffusing rollers for fixing rollers for electronic copying machines
US4530140A · kind A · utility
9Cited by
1References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 14, 1982 |
| Grant date | Jul 23, 1985 |
| Priority date | — |
| Expiry date | Sep 14, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An offset preventive diffusion roller subsidiary to a fixing roller for electronic copying machines has an oil absorbing layer composed of two kinds of layers. One of the layers is of plural oil diffusing layers for diffusing oil in the axial direction of the roller core. The other layer is of plural oil retaining layers composed of a soft and porous material for retaining oil therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.