Control panel message Description Recommended action
50.X FUSER ERROR
For help press
A fuser error has occurred.
X Description
1 low fuser temperature
2 fuser warmup service
3 fuser over temperature
4 faulty fuser
5 incorrect fuser is installed
6 open fuser circuit
1 Turn the printer off and allow it to cool
down.
2 Verify that the correct model of fuser is
installed.
3 Verify that the correct voltage fuser is
installed.
4 Reinstall the fuser, and check the
connection between the fuser and the
printer. Replace the connector if it is
damaged.
5 Replace the fuser.
6 Replace the dc controller PCA. See
Dc controller PCA.
7 Replace the power-supply assembly.
See Power supply.
51.XY
PRINTER ERROR
For help press
alternates with
51.XY
PRINTER ERROR
To continue turn off then on
A printer error has occurred.
X Description
1 beam-detect error
2 laser error
1
Press
( S
ELECT
button) to continue.
2 Turn the printer off and then on.
3 Reseat the connectors between the
laser/scanner and dc controller
PCA (J83 and J84).
4 Replace the laser/scanner assembly.
See Laser/scanner assembly.
5 Replace the dc controller PCA. See
Dc controller PCA.
52.XY
PRINTER ERROR
For help press
alternates with
52.XY
PRINTER ERROR
To continue turn off then on
A printer error has occurred.
X Description
0 scanner error
1 scanner startup error
2 scanner rotation error
1
Press
( S
ELECT
button) to continue.
2 Turn the printer off and then on.
3 Reseat the connectors between the
laser/scanner and
dc controller PCA (J83 and J84).
4 Replace the laser/scanner assembly.
See
Laser/scanner assembly.
5 Replace the dc controller PCA. See
Dc controller PCA.
53.XY.ZZ
PRINTER ERROR
To continue press cancel job
An error occurred in the printer memory.
X DIMM Type
0 ROM (firmware DIMM)
1 RAM
Press C
ANCEL
J
OB
. If the problem persists,
replace the DIMM card in the specific slot.
See Firmware DIMM (LJ 4200/4300 only).
Table 7-7 Numerical printer messages (continued)
Display-message troubleshooting 357
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