发明名称 |
MOVEMENT SENSOR IN A MICRO ELECTRO-MECHANICAL DEVICE |
摘要 |
<p>A method of detecting a blockage within an inkjet nozzle is provided. The inkjet nozzle comprises an ink chamber, an opening defined in a roof of the ink chamber, an actuating arm movable between a rest position and an operating position, and a movement sensor associated with the actuating arm. The movement sensor is activated by movement of the actuating arm to a predetermined position beyond the operating position. The detection method comprises the steps of: (a) passing a blockage-detecting current pulse having a predetermined duration t<SUB>p </SUB>through the actuating arm; (b) detecting for movement of the actuating arm to the predetermined position; and (c) comparing the detected movement with the movement in an unblocked condition. The movement of the actuating arm in a blocked condition is less than movement of the actuating arm in an unblocked condition.</p> |
申请公布号 |
EP1214271(A4) |
申请公布日期 |
2004.05.26 |
申请号 |
EP20000929094 |
申请日期 |
2000.05.24 |
申请人 |
SILVERBROOK RESEARCH PTY. LIMITED |
发明人 |
SILVERBROOK, KIA |
分类号 |
B41J2/015;B41J2/04;B41J2/045;B41J2/05;B41J2/055;B41J2/14;B41J29/393;B81C99/00;H01H51/22;H01H73/00;(IPC1-7):B81B7/04;B41J2/125 |
主分类号 |
B41J2/015 |
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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