Image forming apparatus
US11815827B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2022 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Dec 15, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/0073
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a photosensitive member, a charging member, an exposing device, a developing device, a transfer member, a brush, a voltage applying portion, and a control portion controlling a surface potential of the photosensitive member at the brush contacting position. When a value of subtracting a value of the surface potential of the photosensitive member in the brush contacting position from a value of the brush voltage is defined as a contacting position potential difference, the control portion controls the surface potential of the photosensitive member in the brush contacting position so that the contacting position potential difference is changed from a first potential difference to a second potential difference in a predetermined direction which is either one of an increasing direction or a decreasing direction, and then the contacting position potential difference is changed from the second potential difference to a third potential difference in the predetermined direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.