Toner Overflow Sensor Circuit - Ricoh M5 Service Manual

May, 25, 1985
3.

Toner Overflow Sensor Circuit

CPU
The main board applies +5 volts to CN708-1 to power the toner overflow sensor. The sensor signal
is applied to the main board at CN102-8.
When the rubber cup enters the photosensor, CN102-8 goes from LOW to HIGH and the Replace
Master indicator turns on. The machine cannot be used until a new master unit is installed.
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