发明名称 Printing apparatus and printing method
摘要 In a printing apparatus and a printing method, the frequency of an operation of detecting an inappropriate ejection state of each ejection port is increased, while allowing a decrease in throughput to be suppressed. The printing apparatus includes a first ejection state sensing unit for carrying out an ejection state sensing process in which determination of whether or not ejected droplets are normal is executed, during a single process, on all the ejection ports formed in the print head. The printing apparatus further includes a second ejection state sensing unit for carrying out the ejection state sensing process on the ejection ports in a part of a plurality of ejection port groups into which the plurality of ejection ports formed in the print head are divided.
申请公布号 US8465116(B2) 申请公布日期 2013.06.18
申请号 US20100851853 申请日期 2010.08.06
申请人 MORI TATSUYA;AONO KIYOMI;CANON KABUSHIKI KAISHA 发明人 MORI TATSUYA;AONO KIYOMI
分类号 B41J29/38;B41J2/165 主分类号 B41J29/38
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