Lexmark C720 Service Manual page 106

5024-001
Message
88 <color> Toner
Empty
88 <color> Toner
Low
2-26
Service Manual
Description
The printer has
ceased operating
because the
specified toner
cartridge is empty.
You cannot print
until you replace the
specified toner
cartridge.
The printer has
detected that the
toner supply in the
specified cartridge
is low. If you do not
have the specified
toner cartridge,
order one now.
Action
Install a new toner cartridge.
Check the toner empty sensors
TPD and TTR and connector
DCN7 on the IDO1 P.W.B.
board. Replace if necessary.
Replace the IDO1 P.W.B.
board, if necessary.
Replace the printer main
engine (MCTL P.W.B.) board, if
necessary.
Replace the specified toner
cartridge.
Press Go to clear the message
and continue printing. The
supplies message is displayed
on the second line of the
operator panel until you
replace the specified toner
cartridge.