Belt-type fixing device having an irregular surface contour
US5649273A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 6, 1996 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Mar 6, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2038
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Image fixing device for use in electrophotographic apparatus, capable of suppressing gloss of fixed toner image, thus stably producing images of high quality and high level of fixing intensity over a long period of time. The fixing device is composed of a belt-type heating member and a pressing roller which are contacted with each other and rotate to form therebetween a nip through which a paper supporting unfixed toner image is passed to have the toner image fixed to the paper. The belt-type heating member comprises a metallic endless belt having fine irregularities formed on its surface and a surface layer made of a resin. The surface roughness of the fine irregularities ranges between 10 and 45 .mu.m, when measured by a ten-point averaging method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.