Exposure device and printer with an led array

Details Exposure device and printer with an led array Exposure device and printer with an led array

1988-07-05

1989-06-13

Evans, Arthur G.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346154, G01D 1500

Patent

active

048396729

ABSTRACT:
An exposure device for the image-wise exposure of a photosensitive layer by means of an LED array, whereby the cumulative loading of each LED over a specific time interval is determined, and on the basis thereof in a correction interval each LED is subjected to a specific extra loading equal to the difference between the maximum LED loadings and the subject LED cumulative loading so that at the expiration of the correction interval all the LED's have experienced equal aging.

REFERENCES:
patent: 4720717 (1988-01-01), Ohta et al.
patent: 4757332 (1988-07-01), Yuasa

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