Patent ID: 6747760
Filing Date: 2004-06-08
Classification: B41J,H04N

Abstract:
A method of controlling a print engine for a multi-segment printhead having a plurality of printhead segments that are positioned in a printhead to span a print area so that portions of consecutive printhead segments overlap in common print areas, with each printhead segment defining a lead-in area in one common print area and a lead-out area in a consecutive common print area, the method comprising the steps of:generating a set of dither matrices for each printhead segment, each set having at least a lead-in dither matrix associated with the lead-in area and a lead-out dither matrix associated with the lead-out area; generating lead-in/lead-out dither matrices for each common print area based on characteristics of the printhead segments of each common print area; generating a variable probability value that is dependent on a scalar value that corresponds to a position along a line spanning each common print area; interpolating the lead-in/lead-out dither matrices with the variable probability value to generate interpolated lead-in/lead-out dither matrices; loading a compositor with the data representing the matrices; compositing print data based on the dither matrices; and providing the printhead with the print data.