Image forming apparatus and image forming method
US6801728B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2003 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Feb 25, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0177
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An intermediate transfer belt having a plurality of layers including a conductive layer, and having transfer area and a transfer protection area. A CPU sends a control signal to a primary transfer bias generating circuit, and applies a primary transfer bias upon the conductive layer of the intermediate transfer medium through a bias applying member. The CPU changes an output value of the primary transfer bias in accordance with a predetermined bias change condition when a secondary transfer is not ongoing and when a non-image area, in which there is no toner image transferred on the intermediate transfer belt, such as the transfer protection area is passing the primary transfer part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.