Patent ID: 7303253
Filing Date: 2007-12-04
Classification: B41J,G06K

Abstract:
1. A multi-pass printing apparatus, comprising: a pass-dividing unit, for dividing a print data into M passes of print data, wherein each pass of the print data to be printed includes a plurality of corresponding pixels; a position-signal generating unit, for generating a plurality of position signals corresponding to each pass of the print data to be printed, wherein each position signal has a plurality of positions of each pixel corresponding to the corresponding pass of print data to be printed, wherein each position signal delays a period of time based on an original position signal, thereby scheduling M passes to be printed; a head-driving unit, generating a corresponding driving signal at each position of each corresponding pixel by responding to each position signal and cooperating with each corresponding pass of print data to be printed; and an ink-jet head, jetting a plurality of ink droplets for printing, responding to each driving signal generated by the head-driving unit.