发明名称 |
HEAD CARTRIDGE AND LIQUID EJECTOR |
摘要 |
PROBLEM TO BE SOLVED: To prevent air from being entrained through a liquid ejection nozzle by reducing liquid suction pressure in a liquid circulation conduit when liquid is circulated between a liquid ejection head and a liquid tank by generating a negative pressure in the liquid ejection head. SOLUTION: Ink 8 being fed from a plurality of ink ejection nozzles 27 formed in the nozzle surface 10 to a liquid chamber 9 in a print head 2 for ejecting ink is stored in an ink tank 3. Ink 8 is fed from the ink tank 3 through an ink supply conduit 4 to the print head 2 thence returned from the print head 2 through an ink circulation conduit 5 back to the ink tank 3. A negative pressure is generated in the print head 2 by driving a liquid feed pump 6 arranged on the ink circulation conduit 5 and ink is circulated between the print head 2 and the ink tank 3. Ink suction pressure in the ink circulation conduit 5 is reduced at a pressure regulating section 26 arranged on the ink circulation conduit 5 between the liquid feed pump 6 and the print head 2. COPYRIGHT: (C)2005,JPO&NCIPI |
申请公布号 |
JP2005125669(A) |
申请公布日期 |
2005.05.19 |
申请号 |
JP20030364941 |
申请日期 |
2003.10.24 |
申请人 |
SONY CORP |
发明人 |
ANDO MASATO;MIYAZAKI AKIHITO;NISHI SHOTA;NAMEKAWA TAKUMI;HIRASHIMA SHIGEYOSHI;NAKAMURA MASATO |
分类号 |
B41J2/175;(IPC1-7):B41J2/175 |
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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