Image forming apparatus
US12072654B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2023 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | May 5, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/0089
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A control unit performs control to make a direction of an electric field generated in a first area of an image carrier forming a transfer portion during image forming operation, relative to a voltage applied to a brush member in a state where the first area passes through a contact portion, different from a direction of an electric field generated in a second area of the image carrier forming the contact portion, relative to the voltage applied to the brush member during a period when operation is shifted from first operation in which the image carrier is rotated at a first speed to second operation in which the image carrier is rotated at a second speed different from the first speed, during non-image forming operation different from the image forming operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.