Patent ID: 6676235
Filing Date: 2004-01-13
Classification: H04N

Abstract:
A multi-resolution printing device for a Multi-function Printers (MFP), comprising:a base-frequency clock generator for generating a base-frequency clock; and a control unit connected to said base-frequency clock generator for processing said base-frequency clock and then outputting a plurality of printing clocks for different resolutions to a printing engine, said control unit including: a logic processor including an adder, a subtractor, a comparator, and an internal selector; a first frequency divider connected to said base-frequency clock generator for dividing said base-frequency clock so as to generate a first printing clock; a second frequency divider connected to said base-frequency clock generator for dividing said base-frequency clock so as to generate a second printing clock; and an external selector connected to said first frequency divider, second frequency divider and said logic processor, said external selector being controlled by said logic processor for selectively outputting said first printing clock or said second printing clock to said printing engine.