Cff Feed Hole And Set Sensors - Ricoh FT7770 Service Manual

30
April, '89
CFF Feed Hole
8.
The circuit of the CFF feed hole and set sensors is shown above.
When the computer form is detected by the CFF set sensor (Photo-transistor
turns off), CN105-B8 on the DF main board becomes HIGH.
When a feed hole is detected by a feed hole sensor (Photo-transistor
turns on), the terminal on the DF main board (CN105-A16 or B17) becomes LOW.
and Set Sensors
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