Ricoh Robin Service Manual page 271

ELECTRICAL COMPONENT DEFECTS
3.2 SWITCHES OR OTHER ELECTRICAL COMPONENTS
Component
Main Switch
(SW1)
Front Cover Safety Switch
(SW2)
Paper Tray Switch
(SW3)
Exposure Lamp
(L1)
Fusing Lamp
(L2)
Fusing Thermistor
(TH1)
Fusing Thermoswitch
(TS)
Optics Thermofuse
(TF)
Optics Thermistor
(TH2)
Condition
OPEN The copier does not turn on.
SHORT The copier does not turn off.
OPEN The copier does not turn on.
SHORT The copier does not turn off when the front
or exit cover is opened.
OPEN The Start key stays red even when the 1st
paper tray is closed.
SHORT The Start key stays green even when the
1st paper tray is open, and the "J1"
indicator lights after the Start key is
pressed.
OPEN SC code (E11) is displayed.
OPEN SC code (E52) is displayed.
OPEN SC code (E55) is displayed.
SHORT SC code (E53) is displayed.
OPEN SC code (E52) is displayed.
OPEN SC code (E11) is displayed.
OPEN SC code (E40) is displayed.
SHORT The Energy Saver Function key blinks.
6-54
24 June 1994
Symptom