SYSTEM AND METHOD OF REMOVING FOREIGN BODIES FOR WEAK INKJETS AND MISSING INKJETS IN INKJET PRINTER

摘要

PROBLEM TO BE SOLVED: To provide a system and method for recovering inkjets by identifying inkjets being blocked by particles and inkjets being blocked by air.;SOLUTION: An inkjet printer is operated to identify inoperative inkjets without generating test patterns or analyzing image data. The inkjet printer delivers to an inkjet in a printhead a driving signal configured to operate a piezoelectric actuator in the inkjet and receives a response signal from the piezoelectric actuator. The condition of the inkjet is determined by reference to the response signal. The identified condition is one of the following: the inkjet being blocked by a particle, the inkjet being blocked by air, and the inkjet being ready to eject ink.;COPYRIGHT: (C)2014,JPO&INPIT