OPTICAL CHARACTER GENERATOR FOR AN ELECTROGRAPHIC PRINTER

摘要

An optical character generator for an electrographic printer has a plurality of monolithic circuits (11) arranged on a support (10) on which are integrated individually activatable LEDs (12). The monolithic circuits (11) consist of a monolithically integrated activatable combination of photodiodes, containing a monolithic circuit (11) in which are integrated both the relevant LEDs (12) and the activation circuit (13), possibly including a BUS circuit (14) for the LEDs (12). The monolithic circuits are made using the thin-film technique from III-V semiconductor material, preferably GaAs.