Fixing device and image forming apparatus incorporating same
US8219016B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2010 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Dec 23, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing device includes a hollow, generally cylindrical open-sided stationary heat roll, a flexible fuser belt, a fuser pad, a rotatable pressure member, and a roll shape retainer. The heat roll is configured to heat an outer circumference thereof, and defines an elongated longitudinal side opening in one side thereof. The fuser belt is looped for rotation around the heat roll to transfer heat radially outward from the roll circumference. The fuser pad is held substantially stationary along the roll opening outward from the roll hollow and inward from the loop of the fuser belt. The pressure member is pressed against the fuser pad through the fuser belt to form a fixing nip. The roll shape retainer is disposed on the roll opening to retain the generally cylindrical shape of the heat roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.