Ricoh DD 4450 - Interlock Switch Malfunctions and Symptoms

Electrical Component Defects
SM 6-17 C279
Troubleshooti
ng
Component Condition Symptom
OFF
The “Lower Master Tray is Open” indicator
is lit.
Interlock Switch
ON
Can operate the Vacuum fan, clamper,
Blower fan motor, Eject roller, Pressure
plate and drum if there is no Eject box.
OFF
An SC is displayed for the clamper,
pressure plate, or drum when the main
switch is turned on.