Cartridge and drum unit for electrophotographic image forming apparatus
US12130579B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2023 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Jun 14, 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 casing includes a groove open to outside of the casing, with the groove being defined by a first side surface, a second side surface, and a bottom surface between the first side surface and the second side surface. 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 an extended direction, with at least a portion of a first projected part being positioned on one side of the line and at least a portion of a 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.