发明名称 |
Liquid ejecting head, suction recovering method, head cartridge and image forming apparatus |
摘要 |
A liquid ejection head according to the present invention includes a single liquid supplying port to which a liquid is supplied, a plurality of liquid supplying passages having one end in communication with the liquid supplying port, a plurality of common liquid chambers that are in communication with the other ends of the liquid supplying passages, respectively, and a plurality of ejection port groups which are in communication with the common liquid chambers via liquid channels and from which liquid droplets are ejected. A cross sectional area or length of the liquid supplying passage in communication with the ejection port group having a larger sum of opening areas of the ejection ports is set smaller than that of the liquid supplying passage that is in communication with the ejection port group having a smaller sum of opening areas of the ejection ports.
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申请公布号 |
US6637874(B2) |
申请公布日期 |
2003.10.28 |
申请号 |
US20020058750 |
申请日期 |
2002.01.30 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YAZAWA TAKESHI;OTSUKA NAOJI;SUGIMOTO HITOSHI;TAKAHASHI KIICHIRO;NISHIKORI HITOSHI;IWASAKI OSAMU;TESHIGAWARA MINORU;CHIKUMA TOSHIYUKI;SEKI SATOSHI |
分类号 |
B41J2/145;B41J2/14;B41J2/165;(IPC1-7):B41J2/175 |
主分类号 |
B41J2/145 |
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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