发明名称 |
Automatic shutdown system for electrophotographic apparatus |
摘要 |
A flash tube is utilized as an imaging light source for a moving photoconductive belt or the like. A capacitor connected across the flash tube is charged from a power source. The flash tube is triggered when the voltage across the capacitor reaches a sufficient level to discharge the capacitor through the tube thereby firing the tube which emits an intense and brief flash of light for illuminating a document and imaging the photoconductive belt. A failure sensor produces a failure signal in response to a sheet jam or the like. A voltage comparator produces an enable signal when the voltage across the capacitor is sufficient to fire the flash tube. A trigger signal generator triggers the flash tube and shuts down the apparatus in response to the failure and enable signals in coincidence to discharge the capacitor and the photoconductive belt.
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申请公布号 |
US4089602(A) |
申请公布日期 |
1978.05.16 |
申请号 |
US19760731168 |
申请日期 |
1976.10.12 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
NOGUCHI, KOICHI;WATANUKI, MASAYOSI;NARIMATSU, TAKESHI;YOSHIDA, MITSUTAKA |
分类号 |
G03G21/00;G03G15/00;G03G15/04;G03G15/043;G03G15/047;(IPC1-7):G03B27/76 |
主分类号 |
G03G21/00 |
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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