Fixing device for fixing a toner image on diverse types of recording material
US5374983A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1993 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Sep 3, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Control circuit is arranged to move a mold releasing agent coating roller in contact with end toward and away from a fixing roller in a timing a sheet passing through a pair of fixing rollers is detected whether it is a film or not. In the case when the sheet is a film, the mold releasing agent coating roller is brought in contact with the fixing roller in the timing the leading end of the mold releasing agent reaches a nip section of the fixing roller after the leading end of the sheet has run into the nip section, while it is moved away from the fixing roller when the rear end of the sheet leaves the fixing roller simultaneously with the timing the rear end of the mold releasing agent passes through the nip section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.