RECORDING APPARATUS

摘要

A recording head (10) has individually addressable and energisable point-like radition sources (11) in staggered parallel rows (24,25). The sources irradiate points across the photoreceptor as it moves normal to the rows. Driver circuits simultaneously energise the sources of each row responding to data-bit input signals serially applied during an information line period. A circuit (39,40) delays energisation of one row (24) relative to a second (25), to compensate for the distance between the rows. The driver circuits are identical control chips (34,35) each with a shift register (36) for serially reading in data bit signals and drivers (42) for the radiation sources. Each chip operates in one mode where the delay is operative and in another where it is inoperative, depending which voltage input point (51,52) is selected for reception of a mode control voltage.