Method of leading in APC control and image forming apparatus using the same
US5965869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Dec 15, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04744
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an APC control lead-in method in an image forming apparatus having a plurality of laser light sources, a laser beam emitted by at least one of the plurality of laser light sources is scanned by a deflector to detect a synchronization signal from the scanned laser beam. A first laser light source as one of the plurality of laser light sources is turned on to be led in APC control of the first laser light source. A second laser light source as the remaining one of the plurality of laser light sources is turned on in synchronism with the synchronization signal after lead-in of the APC control of the first laser light source is complete so as to be led in APC control of the second laser light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.