Patent ID: 6012796
Filing Date: 2000-01-11
Classification: G06K,H04N

Abstract:
An ink jet recording apparatus for recording an image having a set of pixels arranged in a line by using a recording head having a plurality of discharging portions arranged in an array direction, said plurality of discharging portions ejecting an ink upon actuation, comprising:scanning means for scanning in a successive manner at least one of said recording head and a recording medium to effect a relative main scan therebetween in a main scan direction differing from the array direction;sub-scanning means for sub-scanning at least one of said recording head and the recording medium to effect a relative sub-scan therebetween so that in each succeeding sub-scan a different one of said plurality of discharge portions is positioned for recording on said pixels in said line, so that after said main scans and said sub-scans each said line corresponds to a group of said discharging portions which eject one kind of the ink, all said discharge portions of said group have scanned all dots to form said pixels in said line;driving means for driving said recording head so that said discharging portions eject said ink according to a driving data; anddriving data setting means for setting said driving data for said discharging portions in said group corresponding to each said pixel in said line such that different said discharging portions in said group are always actuated when two or more said pixels in said line are recorded.