Image forming apparatus
US11112735B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Dec 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/1675
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A controller can select and execute a full color mode of performing image formation in a first state in which each primary transfer member is in contact with an intermediate transfer belt, and a monochrome mode of performing image formation in a second state in which only a primary transfer member is in contact with the intermediate transfer belt. The controller determines which state of the first state and the second state is formed, based on a detection result obtained by a current detection circuit when a photosensitive drum is charged by a charging roller, and voltage is applied to the primary transfer member from a primary transfer power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.