Edge emission type electroluminescent (EL) printer

Details Edge emission type electroluminescent (EL) printer Edge emission type electroluminescent (EL) printer

1990-08-10

1992-08-11

Pendegrass, Joan H.

Recorders

Light or beam recording

Including record receiver or handling means therefor

3461531, 3151693, 340781, B41J 2435, G03G 1504

Patent

active

051383381

ABSTRACT:
An edge emission type EL printer having a line head constituted by an array of numerous edge emission type EL devices. One group of electrodes for the EL devices receive driving pulses from a first driver means, and the other group thereof get driving pulses from a second driver means as per emission control signals. This allows the EL devices to selectively luminesce, forming an electrostatic latent image on the circumference surface of a photosensitive body charged by a charger. The image is developed by a developer and transferred to a recording medium by a transfer machine. The emission control signals entering the line head are monitored so that when the absence of EL devices luminescing within one primary scanning line is detected from the monitoring, a driving pulse stopping means is activated to stop accordingly the driving pulses continuously applied to the EL devices by the first driver means.

REFERENCES:
patent: 4823121 (1989-04-01), Sakamoto et al.
patent: 4899184 (1990-02-01), Leksell et al.
patent: 4951064 (1990-08-01), Kan et al.

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