发明名称 |
Thermal inkjet print head with integrated power supply fault protection circuitry for protection of firing circuitry |
摘要 |
A printer has a print head with multiple nozzles and firing elements for corresponding nozzles. The print head receives one or more power supply inputs to operate the firing elements. The print head has power supply fault protection circuitry to guard against harmful and destructive effects on firing resistors resulting from power supply fluctuations. The power supply fault protection circuitry is integrated into a pen-based chip that also forms the firing elements and optionally the firing logic.
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申请公布号 |
US6851786(B2) |
申请公布日期 |
2005.02.08 |
申请号 |
US20020315467 |
申请日期 |
2002.12.10 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
BECK JEFFREY S.;GHOZEIL ADAM L. |
分类号 |
B41J2/05;B41J2/175;B41J29/393;(IPC1-7):B41J29/393 |
主分类号 |
B41J2/05 |
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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