Image forming apparatus and fixing device having paper dust amount obtaining unit
US8909075B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2013 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jan 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2029
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing device for performing a thermal fixing for fixing an unfixed image onto a recording sheet by passing the recording sheet through a fixing nip formed by a fixing rotator and a pressing member pressing the fixing rotator. The fixing device obtains a value indicating an amount of paper dust attached to the fixing rotator, and when the amount of paper dust indicated by the obtained value is equal to or larger than a permissible amount, performs a control so that a larger amount of heat is supplied to the recording sheet in the thermal fixing than when the amount of paper dust indicated by the obtained value is smaller than the permissible amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.