Oki C5510nMFP User Manual page 122

CODE LCD MESSAGE
Paper Size error
30034
Check The Printer
Waste Toner Full
Replace Belt
40964
40034,
Printer Error
40035,
Check The Printer
40036
Printer Error
40033
Check The Printer
Printer Error
40037
Check The Printer
Printer Error
40992
Check The Printer
DETAILS
Inappropriate size paper was fed from a
tray. Usually paper is automatically
ejected, and error message is displayed.
After the cover is opened and closed,
error is canceled. If paper remains in the
printer, remove it and close the cover.
Open and close the cover to perform
recovery printing, and continue.
Waste toner full. Warning status takes
effect at cover open/close. Replace the
transfer belt. If you do not, when the
printer has printed 500 pages, the error
will occur again.
Drum is not correctly installed.
Belt is unlocked or black drum is not
correctly installed.
Belt unit is not correctly installed.
Fuser unit is not correctly installed.
Error Codes> 121