Ricoh FT 4015 Service Manual page 220

ELECTRICAL COMPONENT DEFECTS
3.2 SWITCHES
Component
Main Switch (SW1)
Interlock Switch (SW2)
Tray Paper Size Switch (SW3)
Right Vertical Guide Switch
(SW4)
Condition
OPEN The copier does not turn on.
SHORT The copier does not turn off.
OPEN The copier does not turn on.
The copier does not turn off when the
SHORT
upper unit is opened.
The copier detects the paper tray open
OPEN
condition even if the paper tray unit is
closed.
The copier detects the paper tray closed
SHORT
condition even if the paper tray unit is
opened.
OPEN User code U1 is displayed.
The user code U1 will not be displayed
SHORT
even if the right vertical guide is opened.
7-30
20 December 1996
Symptom