发明名称 |
Overlapped feed detecting device |
摘要 |
<p>Overlapped paper feed can be detected easily and promptly. Along a paper feeding path, a light emitting element 1 and a light receiving sensor 2 are placed face to face and a detection signal corresponding to the light transmissivity of paper is output. The detection signal is not amplified by one system and amplified at a predetermined amplification ratio via an amplifying circuit 3 in the other system. An A/D converter 5a or 5b is set in each system and outputs the detection signal to a CPU 6 after sampling the detection signal. The CPU 6 detects overlapped feed by selecting the system whose detection signal value is within the effective range which is not effected by noise and not at a saturation level. <IMAGE></p> |
申请公布号 |
EP0894756(A2) |
申请公布日期 |
1999.02.03 |
申请号 |
EP19980112179 |
申请日期 |
1998.07.01 |
申请人 |
RISO KAGAKU CORPORATION |
发明人 |
MIYATA, MASAKAZU;NISHIHATA, MASAHIRO |
分类号 |
B65H7/14;B65H3/46;B65H7/12;(IPC1-7):B65H7/12 |
主分类号 |
B65H7/14 |
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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