HP Color LaserJet 4730 Multifunction Printer series User Manual
Page 272
Control panel message
Description
Recommended action
To continue
turn off then on
52.XY PRINTER ERROR
alternates with
To continue
turn off then on
An MFP error has occurred.
Turn the MFP off then on. Press for more
information.
If the message persists, contact HP Support
at
53.XY.ZZ CHECK RAM
DIMM SLOT X
A memory error has occurred.
If prompted to do so, touch
OK
to continue.
The MFP should come to the Ready state,
but will not make full use of all memory
installed.
Otherwise:
1.
Turn the MFP off.
2.
Verify that all DDR SDRAM meets
specifications and is correctly seated.
3.
Turn the MFP on.
4.
If the problem persists, contact
HP Support at
.
54.01 PRINTER
ERROR
To continue
turn off then on
Printing cannot continue. The humidity
environmental sensor is abnormal.
1.
Turn the MFP off then on.
2.
If the problem persists, contact
HP Support at
.
54.XX
PRINTER ERROR
To continue
turn off then on
There is a sensor malfunction.
Values of XX are:
01 - Humidity sensor
05 - media sensor
07 - Yellow drum phase (home) position
sensor
08 - Magenta drum phase (home) position
sensor
09 - Cyan drum phase (home) position sensor
0A - Black drum phase (home) position
sensor
0B - Density Sensor Out of Range
0C - Halftone Calibration
0D - Halftone Diffusion Calibration
0B - CPR Out of Range
1.
Turn the MFP off then on.
2.
If the problem persists, contact
HP Support at
.
252
Chapter 12 Solving problems
ENWW