发明名称 |
Leistungsversorgung zur zeitlichen Stromversorgung nach dem Sperren |
摘要 |
<p>This invention relates to an improved laser printer power supply that maintains 24-, 12-, and 5-volt DC power to run exhaust fans (14) for a brief period after the power switch (S1) is turned off. These fans (14) remove undesirable ozone from the photo-conducting print drum so as to extend the life of the photo-conductor. The circuits utilize a timer circuit and an optically isolated photo-diac (31,32) to turn a power triac (30) on and off. <IMAGE></p> |
申请公布号 |
DE69533572(T2) |
申请公布日期 |
2005.10.06 |
申请号 |
DE1995633572T |
申请日期 |
1995.07.14 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT CO., L.P. |
发明人 |
HIRST, B. MARK |
分类号 |
G03G15/00;G03G21/00;G03G21/20;G05F1/10;H02J9/00;H02M7/06;H02M7/12;H03K17/292;H03K17/689;(IPC1-7):H03K17/28;G06K15/12;H02M5/257 |
主分类号 |
G03G15/00 |
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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