Method and apparatus for printing an appropriate image even on a special recording medium
US6633733B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2001 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Oct 26, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1678
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus that is capable of forming an appropriate image even on a special transfer sheet, such as a thick and rigid transfer sheet (e.g., a cardboard, an envelope, etc.), a long transfer sheet, etc. In the image forming apparatus, when the thick and rigid transfer sheet is used, a transfer bias applied to first and second transfer devices is increased by about 10% to 30% compared to that applied when a normal transfer sheet is used, and a temperature of fixing rollers is increased by about 10% to 30% compared to that when the normal transfer sheet is used. When the long transfer sheet that is longer than a circumferential length of a second image bearing member is used, an image transfer onto the second image bearing member is prohibited. In addition, the temperature of the fixing rollers is increased by about 10% to 30% compared to that when the normal transfer sheet is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.