Operation Manual

Control panel message Description Recommended action
49.XXXXX ERROR
alternates with
To continue
turn off then on
A critical firmware error has occurred. 1. Turn the printer power off, leave it
off for 20 minutes, and then turn the
printer power on.
2. If the message persists, contact an
HP-authorized service or support
provider (see
HP customer care).
50.X FUSER ERROR
For help press
A fuser error has occurred. 1. Turn the printer power off and then
on.
2. If the message persists, contact an
HP-authorized service or support
provider (see
HP customer care).
51.XY ERROR
For help press
alternates with
To continue
turn off then on
A temporary printing error occurred. 1. Turn the printer power off and then
on.
2. If the message persists, contact an
HP-authorized service or support
provider (see
HP customer care).
52.XY ERROR
For help press
alternates with
To continue
turn off then on
A temporary printing error occurred. 1. Turn the printer power off and then
on.
2. If the message persists, contact an
HP-authorized service or support
provider (see
HP customer care).
53.XY.ZZ CHECK RAM
DIMM SLOT <X>
alternates with
To continue
turn off then on
There is a problem with the printer
memory. The DIMM that caused the
error will not be used.
You will be prompted to press (S ELECT
button) to continue in the following cases:
● 1 or 2 DIMMs where the only error
is ZZ=04
● 2 DIMMs where one is good and the
other has an error with ZZ=01, 02,
03, or 05
● 2 DIMMs where one has an error
with ZZ=04 and the other has an
error with ZZ=01, 02, 03, or 05
Values of X and Y are as follows:
● X = DIMM type, 1 = RAM
● Y = Device location, 0 = Internal
memory (RAM), 1 or 2 = DIMM slot
1 or 2
If the message continues, you might
need to replace the specified DIMM.
Turn the printer power off, and then
replace the DIMM that caused the error.
54.XX ERROR
alternates with
To continue
turn off then on
This message is typically related to a
sensor issue.
Turn the printer power off and then on.
If error reappears, record message and
contact an HP-authorized service or
support provider (see
HP customer care.
Interpreting control-panel messages (continued)
124 Chapter 4 Problem solving ENWW