发明名称 Printing apparatus and suction recovery control method
摘要 An ink-jet printing apparatus and suction recovery control method which can minimize reduction in throughput while maintaining a printhead in the most appropriate condition, and can reduce the amount of wasted ink. According to the suction recovery control method, a printing period of predetermined printing operation is timed, and the number of print dots formed by discharging ink from a printhead during the predetermined printing operation is counted. Based on the timed printing period and counted number of print dots, the number of print dots per unit time is calculated. Then based on the calculated number of print dots per unit time, timing of suction recovery operation is determined, and suction recovery operation of the printhead is performed according to the determined timing.
申请公布号 US6557969(B1) 申请公布日期 2003.05.06
申请号 US20000511360 申请日期 2000.02.23
申请人 CANON KABUSHIKI KAISHA 发明人 MURAKAMI SHUICHI;INUI TOSHIHARU;TOUGE YOSHIYUKI;UETSUKI MASAYA
分类号 B41J2/18;B41J2/165;B41J2/175;B41J2/185;(IPC1-7):B41J2/165 主分类号 B41J2/18
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