发明名称 |
Printing apparatus, print head performance recovery device and method, and piston pump |
摘要 |
This invention provides a small and simple construction to drive a mechanism for maintaining a printing performance of a print head. In one preferred mode of the invention, a recovery device to maintain the printing performance of the print head has a suction pump unit, a capping unit and a wiping unit. The suction pump unit is driven through a spring clutch mechanism by an LF motor in the print sheet transport unit as a drive source. The capping unit and the wiping unit are driven by an AP motor as a drive source in a rotary dead zone set for a paper feed unit that feeds the print sheet to a transport unit. A piston pump is suited for use in a recovery operation to maintain the function of the print head.
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申请公布号 |
US2004183852(A1) |
申请公布日期 |
2004.09.23 |
申请号 |
US20040765399 |
申请日期 |
2004.01.28 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YOSHIDA MASAHITO;SHIMOYAMA NOBORU;HIRAI YASUYUKI |
分类号 |
B41J2/175;B41J11/00;B41J23/02;(IPC1-7):B41J2/165 |
主分类号 |
B41J2/175 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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