Photosensitive drum and process cartridge
US9483016B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2011 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Jan 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1821
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photosensitive drum for use with an image forming apparatus includes a cylinder, having a photosensitive layer at its surface, to which process units are contacted, a supporting shaft extending through the cylinder, and a flange provided at a longitudinal end portion of the cylinder. The flange includes a supporting portion supporting an inner peripheral portion of the cylinder within a contact area at which the process units contact the cylinder, and a first supported portion supported by the supporting shaft, with the first supported portion disposed further from the longitudinal end portion of the cylinder than the supporting portion. In addition, a second supported portion is supported by the supporting shaft and is disposed closer to the longitudinal end portion of the cylinder than the supporting portion. A clearance portion is provided between the first supported portion and the second supported portion with respect to a longitudinal direction of the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.