Photoreceptor drum driving mechanism
US5761580A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1996 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Sep 26, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/757
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photoreceptor drum driving mechanism includes a drum drive gear provided at a leading end of a drive shaft, which is in mesh with an internal gear mounted to a photoreceptor drum and a roller coaxially formed with the drive shaft. The mechanism further includes a circular arc surface in contact with the roller in a deflecting direction of the drive shaft. As a result, the drive shaft of the drum drive gear can be prevented from being deformed in a pressure angle direction of the drum drive gear. As this eliminates irregularities in rotations of the photoreceptor drum, a distortion of an image in an image forming process or in a transferring process can be prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.