Ricoh D392 Technical Training Manual page 35

Actuator
Out
Cartridge Detection Sensor (S801): if the ring cartridge is
missing or is not installed correctly.
Slide 35
No additional notes
Ring Cartridge Detection
When the ring cartridge is pushed in, the actuator is pushed
out of the sensor.
When the ring cartridge is pulled out, the actuator goes into
the sensor.
Actuator
In
35
D392 Ring Binder Training