Fixing device and image forming apparatus provided with the fixing device
US8472854B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2009 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Oct 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2016
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
First belt 51 suspended on first upstream roller 53 and first downstream roller 54, and second belt 52 suspended on second upstream roller 55 and second downstream roller 56 each have a stiffness such that when assumed to be separated from each other, the first belt 51 and the second belt 52 rotate while maintaining an elliptic shape thereof. One of two portions of the first belt 51 facing each other between the first upstream roller 53 and the first downstream roller 54 and one of two portions of the second belt 52 facing each other between the second upstream roller 55 and the second downstream roller 56 are flat as a result of being brought into pressing contact with each other, and a fixing nip is formed therebetween. A toner image is fixed by being heated by heater lamp 57 when recording sheet S passes through the fixing nip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.