Rotator driving device, image forming apparatus using the rotator driving device, and method of driving rotator
US6420807B1 · kind B1 · utility
21Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Mar 9, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/1004
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Rotational force of a driving motor is transferred to a photosensitive drum via a planetary-roller reduction device, so that the photosensitive drum is rotated. A speed detector set on the shaft of the photosensitive drum detects the rotational speed of the photosensitive drum. In accordance with the detected rotational speed of the photosensitive drum, the rotational speed of the driving motor is adjusted so that the photosensitive drum is rotated at a constant speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.