Cartridge and drum unit for electrophotographic image forming apparatus
US12066786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2023 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Jan 19, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1853
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A cartridge includes a photosensitive drum having a rotational axis about which the photosensitive drum is rotatable, a developing roller having a rotational axis about which the developing roller is rotatable, and a casing rotatably supporting the photosensitive drum and the developing roller. The coupling member is operatively connected to the photosensitive drum, with the coupling member including at least one projection capable of receiving a rotational force to rotate the photosensitive drum. A spring is provided with a movable part that is movable relative to the casing in a direction away from the rotational axis of the developing roller to urge the coupling member so that at least the projection of the coupling member moves away from the rotational axis of the developing roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.