发明名称 |
System and method for ink jet printhead detection |
摘要 |
The invention provides a system and method for detecting the presence of an ink jet printhead when a printhead controller fails to properly identify an installed printhead using a printhead identification device. The system includes a printhead including heater resistors and control elements, and a controller connected to the printhead via address and data lines. When the controller fails to properly identify an installed printhead, the controller operates to bias the control elements in a predetermined manner via at least one address line, detect a signal via the data lines, and generate a signal indicative of the presence of the installed printhead.
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申请公布号 |
US7128385(B2) |
申请公布日期 |
2006.10.31 |
申请号 |
US20040880904 |
申请日期 |
2004.06.30 |
申请人 |
LEXMARK INTERNATIONAL, INC. |
发明人 |
BUSH, III JAMES L.;GANADILLO MARENZ S.;LOWE TOMMY O.;MCKINLEY BRYAN D.;ROBERTSON DOUGLAS L. |
分类号 |
B41J29/393;B41J29/38 |
主分类号 |
B41J29/393 |
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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