Brother MFC-9880 Owner's Manual page 138

ERROR MESSAGE
PLS CLEAN DRUM
PLS OPEN COVER
TONER EMPTY
128
Chapter 18
CAUSE
The primary corona wire of drum unit
is dirty.
A page, piece of paper or paper clip,
etc. may be jammed inside the
machine.
Toner is used up and printing is not
possible, or toner cartridge is not
installed into the drum unit.
ACTION
Clean the primary corona wire of
drum unit. (See Cleaning the
Drum Unit, page 140)
Open the front cover and remove
the drum unit. If you see any
jammed paper or other item, gently
pull it out. Reinstall the drum unit,
then close the front cover. If the
error message remains, open and
close the front cover again. If the
machine cannot reset itself and
return to the date and time prompt,
it will display MACHINE
ERROR XX. Then contact your
Brother dealer for service.
Replace the toner cartridge with a
new one, or install the toner
cartridge into the drum unit. (See
Replacing the Toner Cartridge,
page 141)