2-25
Confidential
Print Unable 
E7
Turn the power off 
and then back on 
again.
Read error in the flash ROM
E702 2-51
Print Unable 
E9
Turn the power off 
and then back on 
again.
An error occurred while 
initializing the NFC.
E900 2-51
Print Unable 
ZC
Turn the power off 
and then back on 
again.
Detected that supply power is 
unstable. (less than 100 times)
6F00 2-44
Replace Drum -
Number of the drum unit 
rotations has reached the upper 
limit.
4200 2-38
Replace Toner -
Dot count or develop roller 
counter of the toner cartridge in 
models without toner box is 
reaching the upper limit in the 
continuous printing mode.
4D01 2-38
Open the Front 
Cover, then install 
Toner Cartridge
The amount of toner supplied of 
the toner box has reached the 
upper limit.
4C06 2-38
Open the Front 
Cover, replace 
Toner Cartridge.
Dot count or develop roller 
counter of the toner cartridge in 
models without toner box has 
reached the upper limit in the 
toner stop mode.
4C01 2-38
Self-
Diagnostic
Turn the power off, 
then on again. 
Leave the machine 
for 15 min.
Some fuser unit errors occurred 
at power-ON or upon recovery 
from sleep mode.
6901 2-43
Will Automatically 
Restart within 15 
minutes.
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.)
6902 2-43
Size Error Specify the correct 
paper size for Tray 
1.
For printing by feeding paper 
from the paper tray, the size of 
paper specified from the driver 
set the size which was not 
supported by the paper tray.
9702 2-50
Error message
Description
Error 
codes
Refer 
to:
Initial display Scroll