Image forming apparatus having a cleaning roller for a charging roller of the apparatus
US7460810B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2005 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Aug 6, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C23/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image carrying member, a charging roller for charging the image carrying member, a charging roller cleaning roller, and first and second shaft bearings. The charging roller cleaning roller contacts and cleans a surface of the charging roller. The first shaft bearing rotatably holds a rotation shaft of the charging roller cleaning roller, while the second shaft bearing rotatably holds a rotation shaft of the charging roller. The second shaft bearing integrally includes a first shaft bearing holding member which movably holds, by use of a resilient member, the first shaft bearing in a direction of moving the charging roller towards and apart from the charging roller cleaning roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.