HP Color LaserJet 8550 Multifunction Printer series - Manual (Page 145)

144 7 Printer Control Panel Messages EN
DISK IS
WRITE PROTECTED A user has attempted to save
to the printer hard disk or
send a proof and hold job to
the printer while the printer
hard disk is write-protected. See the system administrator
for access to the printer hard
disk.
DRUM ERROR
REPLACE KIT The printer has detected an
error in the imaging drum. Open the front door. Raise the
green and blue levers.
Remove the imaging drum.
Reinstall the drum, lower both
of the levers, and close the
front door. If the problem
persists, contact a local
authorized HP dealer or
service representative for
service.
DRUM LIFE LOW
REPLACE KIT The imaging drum is almost
past its specified life. Although printing can
continue, the drum kit should
be replaced for optimum
printer operation. For more
information on replacing the
drum kit, see the installation
guide included with the drum
kit. For more information on
configuring the printer
response to this message,
see “
Selecting Toner Low
Response ” in chapter 2 .
DRUM LIFE OUT
REPLACE DRUM KIT The imaging drum is past its
specified life. Printing cannot continue until
the drum kit has been
replaced. For more
information on replacing the
drum kit, see the installation
guide included with the drum
kit.
Message Description Recommended Action