Switches - Ricoh DD 4450 Service Manual

Electrical Component Defects

6.2.2 SWITCHES

Component
Front Door Safety Switch
Main Switch
Master Making Unit Set Switch
Eject Box Set Switch
Lower Master Tray Set Switch
C279
Condition
The "open cover" indicator is lit. The "open
Open
cover" LED is on.
Main unit error ("A","B","C" jam and No
ink) cannot be canceled.
Drum information is not updated even if
drums are exchanged with the main
Close switch on.
An SC occurs if you make a master.
The Interlock SW (door cover side) is OFF
when the door cover is open, and an SC
will occur when a master is made.
OFF The machine does not turn on.
The machine does not turn off.
ON E-61 is displayed when you shut off the
machine.
The "Lower Master Tray is Open" indicator
Connect is lit; even though, the master making unit
is not set. Cannot be canceled.
The "No Master Making Unit" indicators
Open
are lit and cannot be canceled.
The master is fed to the eject box, even if
ON
there is no eject box.
The "No eject box" indicators are lit and
OFF
cannot be canceled.
Master making begins, but the lower
master tray is open, the master vacuum
ON
fans do not pull the master, and E-01 is
displayed.
6-16
Symptom
SM