Controlling voltage in an image forming apparatus including a brush that comes into contact with an image bearing member
US12164238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2023 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Mar 10, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1621
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image bearing member, a brush, and a controller. The controller controls so that, in a case where, in a state where a recording material trailing edge in a conveyance direction is sandwiched at a transfer portion, an area of the image bearing member in the conveyance direction where the recording material is sandwiched in a direction perpendicular to the conveyance direction is a first area, and an area of the image bearing member in the conveyance direction where the recording material is not sandwiched is a second area, a first potential difference formed between a surface potential formed on the second area and a brush voltage, which is based on first information, when the second area reaches the brush and a second potential difference formed between the second area surface potential and the brush voltage, which is based on second information, are different.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.