Image forming apparatus having fixing device and controller to execute a cleaning mode
US7899380B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2007 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Oct 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus which forms an image on a sheet, includes a controller which executes a cleaning mode in which the controller conveys the sheet from a sheet feed tray to a fixing device without forming a toner image on the sheet, removes toner that has been adhered to a fixing member to clean. In case the cleaning mode is executed, the controller controls a releasing section to release pressure contact of a pressing member before a leading edge of the sheet in a sheet conveyance direction reaches a nip portion between the fixing member and the pressing member, and to bring the pressing member into pressure contact with the fixing member after the leading edge of the sheet has passed through the nip portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.