Multicolored image forming apparatus

Details Multicolored image forming apparatus Multicolored image forming apparatus

1985-08-23

1987-04-07

Prescott, A. C.

Photocopying

Including fiber optics

355 3R, 355 8, 355 14R, G03G 1500

Patent

active

046555790

ABSTRACT:
Multicolored image forming apparatus wherein image processing is accomplished by exposing a photosensitive drum through an exposure optical device to the reflected light beam from the document illuminated with a lamp, reading the document image by an image sensor, energizing, by means of the processed signal of the output of the sensor, each LED in an eraser consisting of an LED array offset from the exposure slit center along the photosensitive drum in the width direction thereof, and erasing it.
The light source simultaneously illuminates the document illumination position for slit exposure and a position offset from its center by a distance equal to the displacement between said erase position and the exposure position. The image sensor receives the light beam reflected from the document.

REFERENCES:
patent: 3834807 (1974-09-01), Fuller et al.
patent: 4255042 (1981-03-01), Armitage, Jr. et al.
patent: 4334763 (1982-06-01), Honda et al.
patent: 4375647 (1983-03-01), Mir
patent: 4435064 (1964-03-01), Tsukada et al.

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