Beam passage position control apparatus for controlling a beam passage position and an image forming apparatus using the same
US5892533A · kind A · utility
20Cited by
2References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Mar 20, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04794
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A beam passing position controlling apparatus comprises a light source for emitting a beam, a mechanism for reflecting the beam toward an image carrier surface to scan the image carrier surface, a sensor for detecting a position where the beam passes on the image carrier surface, a circuit for calculating a correction amount from the position detected, a mechanism for correcting the passing position of the beam on the basis of the correction amount, and a circuit for controlling respective operations of the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.