2-18
Confidential
Replace Toner The toner sensor detected no toner remaining 
or the number of rotations of the developer 
roller has reached the upper limit.
6300 2-36
Self-Diagnostic Rechecking the error after the power switch 
was turned OFF and then ON again because 
an error was detected by the center thermistor 
of the fuser unit.
(This message is displayed for approximately 
15 minutes when the machine is restarted after 
error code 5800 has occurred.)
5900 2-35
Size Error DX The registration front sensor detected that the 
paper fed was smaller than or larger than the 
specified size in duplex printing mode.
8900 2-42
Printing on a paper size not supported for 
duplex printing was attempted from the driver.
9900 2-47
Size Mismatch When printing from the MP tray, the size of 
paper set in the MP tray does not match the 
size specified by the driver.
9000 2-45
When printing from paper tray 1, the size of 
paper set in paper tray 1 does not match the 
size specified by the driver.
9100 2-45
When printing from paper tray 2, the size of 
paper set in paper tray 2 does not match the 
size specified by the driver.
9200 2-45
Storage Full Data cannot be saved because storage data 
area in the memory is full.
0D00 2-28
Toner Low The toner sensor detected that the toner 
remaining has fallen below the specified level 
or the developer roller counter has exceeded 
the specified value.
6700 2-36
Error Message Description
Error 
codes
Refer 
to: