Light beam scanning apparatus and image forming apparatus
US6710793B1 · kind B1 · utility
1Cited by
5References
19Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 27, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Nov 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04794
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an image forming apparatus such as a digital copying machine using a multi-beam optical system, a printing area can be set in the unit equal to or smaller than a clock for image formation by use of a delay pulse for each light beam and the exposure position in the light beam scanning direction (main scanning direction) is always precisely controlled by selecting an optimum set value while the actual light beam position is being checked by use of a sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.