Color printer with shiftable laser unit
US5541634A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1995 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | May 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0193
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color printer includes a single laser scanning unit which is controlled to emit a scanning laser in accordance with color image data on each of a plurality of separated colors to be printed. A plurality of photosensitive drums, whose number corresponds to the number of colors to be printed, a laser scanning unit driver which moves the laser scanning unit to transfer positions corresponding to the photosensitive drums, and a plurality of developing units corresponding to the photosensitive drums are provided, to develop latent images drawn on the photosensitive drums by the laser emitted from the laser scanning unit, using a toner of each color. An endless transfer belt has a transfer surface which is successively moved to the transfer positions, and a transfer device which successively transfers the toner images developed by the developing units on the photosensitive drums, onto the same transfer surface of the transfer belt are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.