Image forming apparatus
US8862010B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 2012 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Dec 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing device to perform a fixing process includes an endless, rotatable belt member; a nip-forming rotary member disposed outside a loop of the belt member; a fixing roller disposed at a backside of the fixing nip inside the loop of the belt member and around which the belt member is rotatably stretched; a heater to heat the belt member at a position different from a position where the belt member is rotatably stretched around the fixing roller; a temperature detector; a memory device to store an operational history of the heater; and a processor operatively connected to the heater to control the heater, before the recording sheet is passed through the fixing nip, to perform a warming-up operation to raise a temperature of the fixing roller at the backside of the fixing nip based on the operational history of the heater stored in the memory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.