Cartridge and drum unit for electrophotographic image forming apparatus
US11579561B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2022 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Sep 23, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1853
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A cartridge includes a photosensitive drum, a developing roller, and a casing rotatably supporting the photosensitive drum and the developing roller. The casing includes a groove open to outside of the casing. The casing also includes first and second projected parts that project from the first end portion of the casing in the direction of a rotational axis of the photosensitive drum and away from the photosensitive drum. As seen in the direction of the rotational axis of the photosensitive drum, the rotational axis of the photosensitive drum and the groove are positioned along a line in the extended direction, with the first projected part being positioned on one side of the line and the second projected part being positioned on the other side of the line. A first end of the groove and a second end of the groove are open such that the groove forms a channel in the casing along the extended direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.