308 Troubleshooting
Waste T BoxNearfull
The waste toner collector is nearly full of toner. You can continue 
to print until the Replace Waste T Box error message appears, 
but early replacement is recommended to maintain high print 
quality. See “Replacing the waste toner collector” on page 251.
Worn Fuser
This message indicates that the fuser unit is near the end of its 
service life. Turn the printer off, then replace the fuser unit with 
a new one. Contact your dealer.“Fuser Unit” on page 238
To clear this warning message and continue printing, select Clear 
Warning from the control panel’s Reset Menu. See “How to access 
the control panel menus” on page 199 for instructions.
Worn Photoconductor
This message indicates that the photoconductor unit is near the 
end of its service life. You can continue to print until the Replace 
Photocondctr error message appears, but early replacement is 
recommended to maintain high print quality.
To clear this warning message and continue printing, select Clear 
All Warnings from the control panel’s Reset Menu. See “How to 
access the control panel menus” on page 199 for instructions.
Worn Transfer Unit
This message warns you that the transfer unit is near the end of 
its service life. You can continue to print until the Replace 
TransferUnit error message appears, but early replacement is 
recommended to maintain high print quality.
Write Error ROM A/Write Error ROM P
This message indicates an internal error in the printer. Reset the 
printer. If this error persists, consult your dealer.