| 摘要 |
PCT No. PCT/JP96/02444 Sec. 371 Date Jun. 24, 1998 Sec. 102(e) Date Jun. 24, 1998 PCT Filed Aug. 30, 1996 PCT Pub. No. WO98/08686 PCT Pub. Date Mar. 5, 1996A color printer provided with ink jet heads comprising three trains of nozzle holes for respectively discharging different colored ink, each train of nozzle holes composed of a plurality of nozzle holes which are arranged at intervals of three pitches in the auxiliary scanning direction, and disposed at equal intervals in the main scanning direction while shifting every one pitch in the auxiliary scanning direction wherein different colored inks are discharged and sequentially superimposed over one another on a recording sheet to synthesize colors. The color printer further comprises control means for controlling the ink jet heads by discharging only one colored ink through the nozzle holes of any one of the three trains to make a print on the recording sheet as the first main scanning, then discharging ink through the nozzle holes of said train and another train adjacent to said train of nozzle holes to make a print as the scanned main scanning while they are shifted by one pitch in the auxiliary scanning direction, and thereafter discharging ink through the nozzle holes of the three trains to make a print as the next main scanning while they are shifted by one pitch in the auxiliary scanning direction, so as to make a print which is regular in sequence of superimposition of colors.
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