Patent ID: 6305780
Filing Date: 2001-10-23
Classification: B41J

Abstract:
A carriage drive system for use in a serial printer, said carriage drive system comprising:a carriage movable in transverse directions across a print medium, each of the transverse directions being substantially perpendicular to a print medium feed direction;at least one print cartridge releasably mounted on said carriage and having at least one printhead, said at least one printhead having at least one ink jetting nozzle for jetting ink, said at least one ink jetting nozzle being configured for cyclically jetting the ink at at least a first jetting frequency;a carriage belt mechanically coupled to said carriage;a transverse drive system for driving said carriage belt in the transverse directions; anda drive motor coupled to said drive system;wherein at least one cyclical disturbance exists due to the operation of at least one of said carriage belt, said drive system and said motor, said at least one cyclical disturbance having at least a first disturbance frequency, at least one of said carriage belt, said drive system and said motor being configured such that said first disturbance frequency is an integer multiple of said first jetting frequency.