Specifications

No C11
CASE 1 No
TROUBLE POSITION
CAUSE
Fusing temperature sensor (thermistor) signal recognition error
1) Fusing temperature sensor (thermistor) trouble
2) MCU PWB fusing temperature sensor (thermistor) input circuit trouble
REMEDY (Check)
1) Fusing temperature sensor (thermistor)
2) MCU PWB fusing temperature sensor (thermistor) input circuit
(Remedy)
1) Fusing temperature sensor (thermistor) replacement
2) MCU PWB replacement
3) Reset the trouble with SIM 14.
(After work)
1) When the MCU PWB is replaced, perform simulations to input various set values and
adjustment values.
NOTE
CASE 2 No
TROUBLE POSITION
CAUSE
Heater lamp control signal trouble
1) MCU PWB heater lamp control circuit trouble
REMEDY (Check)
1) MCU PWB
(Remedy)
1) MCU PWB replacement
2) Reset the trouble with SIM 14.
(After work)
1) When the MCU PWB is replaced, perform simulations to input various set values and
adjustment values.
NOTE
CASE 3 No
TROUBLE POSITION
CAUSE
Heater lamp drive trouble
1) Power PWB heater lamp drive circuit trouble
REMEDY (Check)
1) Power PWB
(Remedy)
1) Power PWB replacement
2) Reset the trouble with SIM 14.
(After work)
NOTE
SELF DIAG CODE MESSAGE U2
No C12
PHENOMENON DISPLAY CODE MAIN CODE U2 SUB CODE 01
LAMP
TITLE EEPROM (MCU PWB) trouble (counter data error)
DETAIL EEPROM (MCU PWB) counter data trouble (data error)
SECTION MCU PWB EEPROM
ITEM
TYPE (MODE) User Warning
Service Trouble
Other Other
OPERATION MODE All modes Machine operation when the
message is displayed
Stop
NOTE
BASIC CAUSE 1 EEPROM (MCU PWB) counter data trouble (data error)
CASE 1 No
TROUBLE POSITION
CAUSE
EEPROM (MCU PWB) counter data trouble
EEPROM (MCU PWB) trouble
REMEDY (Check)
(Remedy)
1) MCU PWB replacement
2) Reset the trouble with SIM 14.
3) Use simulations to set various set values and adjustment values.
(After work)
NOTE
FO-3800M
10 – 12