发明名称 Printing apparatus and head driving method
摘要 With a printing apparatus and a head driving method according to the present invention, a plurality of printing heads (HA,HB) having a plurality of recording elements and a printing medium are relatively moved in a prescribed direction, and the plurality of recording elements of each printing head (HA,HB) are divided into a plurality of blocks and each element in each block are driven in a prescribed sequence during the relative movement. As a print position offset between the plurality of printing heads (HA,HB) in the prescribed direction on the printing medium is detected and the detected amount is greater than a prescribed amount, on the basis of block sequence designater (408), an in-block driving sequence is set independently for the each printing head and on the basis of a sequence generated by block sequence generater (409), the each printing head is driven. Correcting the print position offset in this way produces accuracy of printing position adjustment between printing heads in the main scanning direction, and thereby correcting a registration offset with accuracy can achieve a high quality image. <IMAGE>
申请公布号 EP0948188(A3) 申请公布日期 2000.08.23
申请号 EP19990302677 申请日期 1999.04.06
申请人 CANON KABUSHIKI KAISHA 发明人 IWASAKI, OSAMU;OTSUKA, NAOJI;TAKAHASHI, KIICHIRO
分类号 B41J2/01;B41J2/05;B41J2/13;B41J2/51;B41J19/18;B41J29/393;H04N1/053;H04N1/12;H04N1/191 主分类号 B41J2/01
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