Fixing device controlling method, fixing device, and image forming apparatus for forming fixed images of desired glossiness
US6795681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Oct 18, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a method of controlling a fixing device having a heating roller containing a heat source, at least one supporting roller spaced from the heating roller, a fixing belt trained about the heating roller and the supporting roller, and a pressing roller placed to form a nipping area between the fixing belt and the pressing roller, giving a pressing force to the heating roller or the supporting roller through the fixing belt, the method includes the steps of: presetting a desired glossiness of fixed images; detecting a temperature of the pressing roller; calculating a target heating roller temperature from the preset glossiness of fixed images, the detected temperature of the pressing roller, a calculated loaded nipping time, a false nipping time, and a loaded nipping surface pressure; and controlling an operating status of the heat source according to the calculated target heating roller temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.