Service manual
2-18
Confidential
Self-Diagnostic Turn the power off,
then on again. Leave
the machine for 15
min.
An error occurred in the fuser unit
when the power switch was turned
ON or sleep mode was released.
6901 2-37
Will Automatically
Restart within 15
minutes.
Rechecking the error after the
power switch was turned OFF and
then ON again because an error
was detected in the fuser unit.
(This message is displayed for
approximately 15 minutes when
the machine is restarted after error
code 6901 has occurred.)
6902 2-37
Size Error DX Press Go for 2
seconds. Specify the
correct paper and load
the same size paper
as the Printer driver
setting.
A tray set to duplex printing-
incompatible size was specified in
duplex printing.
9701 2-44
Specify the correct
paper.
The registration rear sensor
detected that the paper fed was
smaller or larger than the specified
size in duplex printing mode.
8A01 2-43
Size Mismatch Load paper and press
Go.
When printing from the paper tray,
the size of paper set in the paper
tray does not match the size
specified by the driver.
9002 2-44
Toner Ended Open the Front Cover,
replace Toner
Cartridge.
The toner cartridge has reached
the upper limit in the toner
continuous printing mode.
4E01 2-34
Toner Low ― Dot count or develop roller counter
of the toner is reaching the upper
limit.
4B01 2-33
2-sided Disabled Close the Back Cover
of the machine.
The back cover sensor detected
that the cover was open during
duplex printing. (Before registering
printing data to engine)
8903 2-42
The back cover sensor detected
that the cover was open during
duplex printing. (After registering
printing data to engine)
8904 2-42
First line Second line Description
Error
codes
Refer
to: