PRINTING START SIGNAL SETTING AND VIDEO DATA CLOCK PULSE GENERATING CIRCUIT FOR LASER BEAM PRINTER

摘要

The circuit includes a laser beam printer engine section (10) for receiving printing data and for executing a printing. A CPU (20) controls the system sections, and a clock pulse generating section (30) generates clock pulses. A print start signal generating section (40) generates print start signals in accordance with the clock pulses of the clock pulse generating section (30). A video data clock pulse generating section (50) outputs video data clock pulses by frequency-dividing the clock pulses of the section (30). A data latching section (60) outputs its output to the print engine section (10) in accordance with the video clock pulses of the section (50).