HP LaserJet 4345 Multifunction Printer series - Manual (Page 221)

Control panel message Description Recommended action
50.X FUSER ERROR A fuser error has occurred. Turn the MFP off, and then turn the MFP
on.
If this message persists, contact an HP-
authorized service or support provider.
(See the HP support flyer, or go to
http://www.hp.com/support/lj4345mfp .)
51.XY ERROR To continue turn
off then on A temporary printing error has occurred. Turn the MFP off, and then turn the MFP
on.
If this message persists, contact an HP-
authorized service or support provider.
(See the HP support flyer, or go to
http://www.hp.com/support/lj4345mfp .)
52.XY ERROR To continue turn
off then on A temporary printing error has occurred. Turn the MFP off, and then turn the MFP
on.
If this message persists, contact an HP-
authorized service or support provider.
(See the HP support flyer, or go to
http://www.hp.com/support/lj4345mfp .)
53.XY.ZZ CHECK RAM DIMM
SLOT To continue touch OK A problem exists with the MFP memory.
The DIMM that caused the error will not
be used. The following are the values of X:
X = Device location
0 = Onboard memory
1 = Slot 1
2 = Slot 2
You might need to reseat or replace the
specified DIMM.
Turn the MFP off, and then replace the
DIMM that caused the error. See
Installing memory .
If this message persists, contact an HP-
authorized service or support provider.
(See the HP support flyer, or go to
http://www.hp.com/support/lj4345mfp .)
55.XX.YY DC CONTROLLER
ERROR To continue turn off then
on The print engine is not communicating
with the formatter. Turn the MFP off, and then turn the MFP
on.
If this message persists, contact an HP-
authorized service or support provider.
(See the HP support flyer, or go to
http://www.hp.com/support/lj4345mfp .)
56.X ERROR To continue turn off
then on A temporary printing error has occurred. Turn the MFP off, and then turn the MFP
on.
If this message persists, contact an HP-
authorized service or support provider.
(See the HP support flyer, or go to
http://www.hp.com/support/lj4345mfp .)
57.XX ERROR To continue turn
off then on A temporary printing error has occurred. Turn the MFP off, and then turn the MFP
on.
If this message persists, contact an HP-
authorized service or support provider.
(See the HP support flyer, or go to
http://www.hp.com/support/lj4345mfp .)
Control-panel messages (continued)
ENWW Resolving control-panel messages 207