2-16
Confidential
Error 
Codes
Description
Refer 
to:
Error 
Codes
Description
Refer 
to:
6001
The top cover sensor detected that 
the top cover was open.
2-60 6300
The electrodes of the high-voltage 
power supply PCB detected that no 
waste toner box was set.
2-64
6002 *1 6400
The registration mark sensor detected 
that no belt unit was set.
2-64
6003 *1
6602 *1
6701 *1
6004
The eject sensor detected that the 
fuser cover was open.
2-61 6801
The internal temperature sensor 
detected a temperature higher than 
the specified value.
2-64
6007 *1 6802 *1
6101
Developing terminal voltage detected that 
the toner cartridge (black) was not installed.
2-61 6901
Some fuser unit errors occurred at power-
ON or upon recovery from sleep mode.
2-65
6102
Developing terminal voltage detected 
that the toner cartridge (yellow) was 
not installed.
2-61 6902
After the error was detected at the 
fuser unit, power was turned ON 
again and the error is being checked. 
(If power is turned OFF and ON after 
error code 6901 occurred, this code is 
displayed for about 15 minutes.)
2-65
6103
Developing terminal voltage detected 
that the toner cartridge (magenta) was 
not installed.
2-61 6A00
Electric discharge that may be caused 
by dirt on the corona wire of the drum 
unit was detected.
2-66
6104
Developing terminal voltage detected 
that the toner cartridge (cyan) was not 
installed.
2-61 6B01
Electric discharge was detected when 
the number of the black drum unit 
rotations had become more than twice 
of the upper limit.
2-66
6106 *1 6B02
Electric discharge was detected when 
the number of the yellow drum unit 
rotations had become more than twice 
of the upper limit.
2-66
6200 *1 6B03
Electric discharge was detected when 
the number of the magenta drum unit 
rotations had become more than twice 
of the upper limit.
2-66
6201
GRID terminal signal detected that the 
black drum unit was not installed.
2-62 6B04
Electric discharge was detected when the 
number of the cyan drum unit rotations had 
become more than twice of the upper limit.
2-66
6202
GRID terminal signal detected that the 
yellow drum unit was not installed.
2-62
6B0A *1
6203
GRID terminal signal detected that the 
magenta drum unit was not installed.
2-62 6C01 *1
6204
GRID terminal signal detected that the 
cyan drum unit was not installed.
2-62 6C02 *1
6208 *1 6C03 *1
6209 *1 6C04 *1
620A
Electrified terminal or GRID terminal signal 
detected that the black drum was not 
installed when the machine was turned ON.
2-62 6D00 *1
620B
Electrified terminal or GRID terminal signal 
detected that the yellow drum was not 
installed when the machine was turned ON.
2-62 6E00
The develop release sensor detected 
the develop roller disengagement or 
engagement failure.
2-66
620C
Electrified terminal or GRID terminal signal 
detected that the magenta drum was not 
installed when the machine was turned ON.
2-62 6F00
Detected that supply power is 
unstable (less than 100 times).
2-67
620D
Electrified terminal or GRID terminal signal 
detected that the cyan drum was not installed 
when the machine was turned ON.
2-62 7000
After the registration rear sensor 
detects paper pass, the eject sensor 
does not detect paper pass.
2-67