2JB/2JC-1
1-4-19
Measures against the service codes detecting fuser problems
If one of the following service codes is detected, take actions to clear the cause of the trouble and perform maintenance
item U163 to reset the service code.
(2) Self diagnostic codes
Code Contents
C6000 Fuser heater break
C6020 Abnormally high fuser thermistor center temperaturee
C6050 Abnormally low fuser thermistor center temperature
C6120 Abnormally high fuser thermistor edge temperature
C6150 Abnormally low fuser thermistor edge temperature
C6400 Zero-cross signal error
C6420 Fuser unit fuse cut problem
Code Contents
Remarks
Causes Check procedures/corrective measures
C0030 Fax control PWB system problem
(optional fax)
Processing with the fax software was
disabled due to a hardware or software
problem.
Defective fax con-
trol PWB.
Replace the fax control PWB and verify the
operation.
C0060 Main PWB type mismatch error Defective PWB. Run maintenance item U935 to contact the
Service Administrative Division.
C0070 Abnormal detection of fax control
PWB incompatibility (optional fax)
In the initial communication with the fax
control PWB, any normal communication
command is not transmitted.
Defective fax soft-
ware.
Install the fax software.
Defective fax con-
trol PWB.
Replace the fax control PWB and verify the
operation.
C0100 Main PWB backup memory device
problem
Writing or erasing has not completed
even after a certain time.
Defective main
PWB.
Replace the main PWB and check for cor-
rect operation.
C0110 Backup memory data problem
Data in the specified area of the backup
memory does not match the specified
values.
Problem with the
backup memory
data.
Run maintenance item U020 to initialize the
backup memory data (see page 1-3-10).
C0120 Drum EEPROM error
Reading from or writing to EEPROM
cannot be performed.
Poor contact in the
connector termi-
nals.
Check the connection of connector on the
engine PWB and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective drum
unit.
Replace the drum unit.
C0130 Backup memory (EEPROM) device
problem (Main PWB)
Reading from or writing to EEPROM
cannot be performed.
Defective main
PWB.
Replace the main PWB and check for cor-
rect operation.
Device damage of
EEPROM.
Contact the Service Administrative Division.
C0140 Backup memory (EEPROM) data
problem (Main PWB)
Reading data from EEPROM is abnor-
mal.
Data damage of
EEPROM.
Contact the Service Administrative Division.
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