Electrophotographic printer comprising an exposure energy correcting means for the optical character generator

摘要

PCT No. PCT/DE86/00378 Sec. 371 Date May 26, 1987 Sec. 102(e) Date May 26, 1987 PCT Filed Sep. 18, 1986 PCT Pub. No. WO87/02162 PCT Pub. Date Apr. 9, 1987.An electrophotographic printer having an optical character generator and an exposure energy correcting means formed of a light-emitting diode strip for the optical character generator. Upon call-in of a balancing routing, an automatic balancing of the light-emitting elements occurs by use of a photoelement which acquires a radiant intensity transmitted onto the recording medium by every light-emitting element under prescribed normal operating conditions, and which supplies corresponding signals to a control means coupled to the light-emitting element. The control means then assigns every light-emitting element an individual actuation time and stores this in a switching time memory. Upon actuation, every light-emitting element thus supplies the same radiant energy to the recording medium.