发明名称 |
Electrostatic ink jet recording apparatus capable of realizing stable ejection of ink |
摘要 |
A recording head includes an ink chamber storing ink containing electrified toner particles and having an ejection opening 7 at one end and an ejection electrodes for ejecting the toner particles from the ejection opening. A counter electrode 6 faces the ejection opening. The recording head also includes a toner, concentration detection sensor detects a potential of the ejection opening 7, and a control unit for deciding a detected toner concentration and controlling a voltage to be applied to the ejection electrodes. The surface potential nearby ejection opening or the toner concentration and a voltage applying time are made to previously correspond to each other and are stored in a ROM table. A stable printing quality is obtained by detecting the toner concentration near the ejection opening by the toner concentration detection circuit and controlling a voltage to be applied to the ejection electrodes corresponding to a detected value.
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申请公布号 |
US6113219(A) |
申请公布日期 |
2000.09.05 |
申请号 |
US19970917769 |
申请日期 |
1997.08.27 |
申请人 |
NEC CORPORATION |
发明人 |
MIZOGUCHI, TADASHI;TAKEMOTO, HITOSHI;SUETSUGU, JUNICHI;MINEMOTO, HITOSHI;SHIMA, KAZUO;HAGIWARA, YOSHIHIRO;UEMATSU, RYOSUKE;YAKUSHIJI, TORU |
分类号 |
B41J2/06;(IPC1-7):B41J2/06 |
主分类号 |
B41J2/06 |
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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