Multi-color image forming apparatus

Details Multi-color image forming apparatus Multi-color image forming apparatus

1991-04-04

1993-01-12

Reinhart, Mark J.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

355207, H04N 121

Patent

active

051793920

ABSTRACT:
A multi-color image forming apparatus forming an image of a plurality of colors in one processing by using a plurality of laser beams and a plurality of developing devices, in the case where any of the laser beams becomes unusable during forming a mono-color image, makes the image data to have been outputted from the laser beam to be replaced by that of another laser beam which can be usable, then to output it. The apparatus, in the case where any of the laser beams and developing devices become unusable because of trouble caused therein during forming an image of a plurality of colors, forms an image as an emergency measure by using the remaining usable laser beams or developing devices. Moreover, in the case where any of the laser beams and developing devices for any color become unusable because of trouble caused therein during forming an image of a plurality of colors, express the color by changing the density of another color.

REFERENCES:
patent: 4819019 (1989-04-01), Egawa et al.
patent: 4939548 (1990-07-01), Yamada et al.

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