Developing cartridge including first cam rotatable with first gear and second cam rotatable with second gear to separate developing roller from photosensitive drum
US11720049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2022 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | May 16, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1821
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing cartridge includes: a developing roller rotatable about an axis extending in a first direction; a casing; a first cam and a first gear rotatable together relative to the casing about a first axis extending in the first direction; and a second cam and a second gear rotatable together relative to the casing about a second axis extending in the first direction. The second gear contacts the first gear. When the developing cartridge is attached to a drum cartridge including a photosensitive drum: at a first position of the first cam, the second cam is at a third position and the developing roller and the photosensitive drum contact each other; and at a second position of the first cam, the second cam is at a fourth position and contacts a part of the drum cartridge to move the developing cartridge to separate the developing roller from the photosensitive drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.