Fusing device and image forming apparatus using the same
US8107870B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2008 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Mar 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/206
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fusing unit is comprised of a pair of rollers, a fusing roller and a pressing roller, having an elastic layer on their outer peripheral surface and a pressing spring for pressing the fusing roller against the pressing roller, and causes a sheet of paper with an unfixed toner image to pass through the nip portion where the fusing roller and pressing roller are put in press-contact with each other so as to fuse the toner image and fix it to the paper. This fusing device further includes a roller member regulator for regulating the press-contact state when the fusing roller and pressing roller are put in press-contact with each other by the pressing spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.