Color printer with shiftable laser unit

Incremental printing of symbolic information – Electric marking apparatus or processes – Electrostatic

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Details

347232, 355327, G03G 1501

Patent

active

055416349

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.

REFERENCES:
patent: 4788574 (1988-11-01), Matsumoto et al.
patent: 5117253 (1992-05-01), Suzuki
patent: 5351115 (1994-09-01), Yamamoto et al.
patent: 5374980 (1994-12-01), Kubo et al.
patent: 5442428 (1995-08-01), Takahashi et al.

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