Multi-beam image recording apparatus
US6340983B1 · kind B1 · utility
3Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1999 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Sep 24, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1911
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multi-beam image recording apparatus changes a diameter of a laser beam using a beam diameter changing board, an order in which the line data is to be read from the memory unit, a rotational speed of a polygon mirror, and a clock frequency employed when the image data is read in units of pixels, in accordance with the specified resolution. Accordingly, the multi-beam image recording apparatus can switch between the resolutions without changing a distance between the centers of two laser beams emitted from an optical system. The resolution switching can be achieved with high accuracy at low costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.