Timing Exit, And Manual Feed Sensors - Ricoh FT7770 Service Manual

30
April, '89
2. Timing, Exit, and Manual Feed Sensors
Timing Sensor –
–
– Exit and Manual Feed Sensor –
- Timing Sensor -
The timing sensor
timing sensor, the
- Exit and Manual Feed Sensor -
Exit sensor and manual feed sensor are
same kind of circuit.
applies +5 volts to the main board.
(off), the connected main board pin becomes 0 volts.
Exit sensor is used to check for jam at sorter exit.
is a reflective photosensor.
phototransistor turns on and applies HIGH to CN113-3.
When the photointerrupter is not blocked (on), it
When the paper reaches the
photointerrupters and have the
When the photointerrupter is blocked
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