Fixing device, and releasing agent replenishing device and method for use in the fixing device
US5991562A · kind A · utility
11Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a fixing device with a fixing roller that fixes the toner held on a sheet, a pressuring roller that contacts with the fixing roller, and a supply roller that applies the oil to the fixing roller, image noises and offset phenomenon are prevented by replenishing the consumed oil immediately to the supply roller only when the fixing roller is rotating, based on the oil replenishing speed determined by the rotational speed of the fixing roller and the oil replenishing amount determined by the total rotation time of the fixing roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.