EJECTION CONTROLLER, INK EJECTOR, EJECTION CONTROL METHOD, SCREEN DISPLAYING METHOD, PROGRAM AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To solve the problem of a line head that a defect inherent to a nozzle is perceived easily as uneven density or streak in the print results. SOLUTION: An ejection controller 10 capable of ejecting ink drops of the same color and density from at least a plurality of arrays of nozzle groups N1 and N2 by controlling a head unit 11 arranged with a plurality of arrays of nozzle groups in the printing direction of a recording object comprises a section 10A storing information for identifying a nozzle group including a defective nozzle and information for specifying the position of a defective nozzle in the nozzle group, a section 10B for judging whether a destination nozzle of assigned gradation data is stored in the storage section 10A or not when print processing is performed, and a section 10C for assigning the gradation data to a nozzle at the same position as other nozzle group capable of ejecting an ink drop of the same color with the same density when the destination nozzle of assigned gradation data is stored in the storage section. COPYRIGHT: (C)2005,JPO&NCIPI