Image forming apparatus with developing roller separation processing
US11378895B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2021 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Feb 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/5029
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A controller is configured to: when an inter-sheet time is shorter than or equal to a first time, maintain a developing roller in contact with a photosensitive drum during an inter-sheet time; when the inter-sheet time is longer than the first time and shorter than or equal to a second time longer than the first time, perform, during the inter-sheet time, at least part of temporary separation processing of temporarily separating the developing roller from the photosensitive drum in a state where the photosensitive drum is rotating; and when the inter-sheet time is longer than the second time, perform, during the inter-sheet time, at least part of temporary stop processing of separating the developing roller from the photosensitive drum and then stopping rotation of the photosensitive drum, and subsequently restarting rotation thereof and then bringing the developing roller into contact with the photosensitive drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.