Image forming apparatus having heat-fixing unit
US7792448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2009 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Jun 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00945
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image forming portion. The image forming apparatus further includes a fixing portion having a fixing nip portion that heats and fixes the unfixed image and an discharge roller that discharges the recording material. In the case where the recording material is a plain paper that is equal to or larger than a predetermined size, the discharge roller conveys the plain paper in a range from a front edge to a rear edge at a predetermined speed. In the case where the recording material is a plain paper smaller than the predetermined size, the discharge roller conveys the plain paper at a first speed until the rear edge passes through the fixing nip portion, and the discharge roller conveys the plain paper at a second speed higher than the first speed after the rear edge has passed through the fixing nip portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.