Patent ID: 6236425
Filing Date: 2001-05-22
Classification: B41J,H04N

Abstract:
An image printing apparatus comprising a control circuit for generating a plurality of laser modulating signals which respectively control a plurality of laser beams based on image data for a plurality of scanning lines, said plurality of scanning lines being printed in parallel using said plurality of laser beams and including:memory means for storing said image data for said plurality of scanning lines in synchronism with respective scanning positions of said plurality of laser beams and which is read out in synchronism with a common scanning position of one of said plurality of laser beams;a logic circuit for generating laser modulating data for said plurality of scanning lines to control said plurality of laser beams based on said image data for said plurality of scanning lines and pre-stored template patterns in synchronism with said common scanning position;a First-In-First-Out (FIFO) memory for storing said laser modulating data for said plurality of scanning lines in synchronism with said common scanning position, and for reading out said stored laser modulating data in synchronism with respective scanning positions of said plurality of laser beams; anda laser modulator for generating said laser modulating signals for said plurality of scanning lines based on said laser modulating data in synchronism with said respective scanning positions of said plurality of laser beams.