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3-9
Confidential
3. ERROR CODES
This machine includes a self-diagnosis function. If the machine does not work normally it
judges that an error has occurred, and indicates the corresponding error message on the
LCD, which in turn helps the end user to quickly find out the problem.
3.1 Error Indication
Error
codes
Problem
Refer
to:
Error
codes
Problem
Refer
to:
1E
Replacement time of the drum
unit
3-12 59
Fuser unit failure (Detect fuser
failure at start-up)
3-17
1F
Two or more optional trays are
installed
3-12 63
Replace toner or Toner life end
3-17
24
Internal temperature sensor
failure
3-12 67
Toner low
3-17
35
EEPROM of main PCB failure
3-13 68
Temperature rise when heater is
off
3-18
36
HVPS PCB during standby
failure
3-13 69
Mis-connect center thermistor
connector
3-18
3B
Main PCB RAM failure
3-13 6A
Fuser temperature does not
detect 60°C within the specified
time (center thermistor)
3-19
3C
EEPROM writing error
(Not applicable)
3-13 6B
Fuser temperature does not
detect 100°C within the
specified time (center
thermistor)
3-19
3D
EEPROM reading error
(Not applicable)
3-13 6C
Detect higher temperature error
(center thermistor)
3-19
3E
EEPROM bus error
(Not applicable)
3-13 6D
Detect lower temperature error
(center thermistor)
3-19
44
No toner cartridge
3-14 6E
Detect non temperature rising
error (center thermistor)
3-19
50
Replacement time of the drum
unit 3-14 6F
Hardware detects extremely
high temperature of the center
or side thermistors
3-19
51
Replacement time of the paper
feed kit MP
3-14 70
Fuser motor error
3-20
52
Replacement time of the paper
feed kit T1
3-15 71
Laser unit polygon mirror failure
3-20
53
Replacement time of the paper
feed kit T2
3-15 72
Laser beam emission failure
3-20
54
Replacement time of the fuser
unit
3-15 75
Sensor of the inside
temperature for detection
detected higher than constant
temperature
3-20
55
Replacement time of the laser
unit
3-15 76
Rapid temperature rising failure
(center thermistor)
3-21
56
Back cover opened
3-16 78
Rapid temperature falling failure
(center thermistor)
3-21
57
Paper jam (Duplex tray)
3-16 7A
No detection of main motor
synchronous signal
3-21
58
Fuser unit failure
3-17 7D
Dirt on charged wire (detect
discharge error)
3-21