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Message Description Action
50.X FUSER ERRORcontinued 50.9 error - Fuser Failure (Abnormally High
Temperature Sub Thermistor)
1. The connector between the fuser and the
printer is not connected properly. Reseat
the fuser. Check the connector J5013
between the fuser and the printer. Replace
it if damaged.
2. Short in the sub thermistor. Turn the
printer off and remove the fuser. Measure
the resistance between the fuser
connectors J5013LA-4 (SUBTH) and
J5013LA-3 (+3.3V). If it reads 600 ohms or
below (at ambient temperature), replace
the fuser.
3. Faulty DC controller PCB, replace the
DC controller PCB.
51.XY.
PRINTER ERROR
alternates with
To continue
turn off then on
A laser/scanner error has occurred
X Description:
1 - beam detect error
2 - laser error
Y Description:
0 - no color
K - black
C - cyan
M - magenta
Y - yellow
1. Press to continue.
2. If the message persists, turn the printer
off and then back on.
3. The connectors in the laser/scanner
control line are not connected properly.
Reseat the DC controller PCB
connectors (J1022, J1026, J1027) and
the laser/scanner unit connectors
(J101A, J101B, J5001A, J5001B,
J5020).
4. Faulty laser/scanner unit, replace the
laser/scanner unit.
5. Faulty DC controller PCB, replace the
DC controller PCB.
52.XY
PRINTER ERROR
alternates with
To continue
turn off then on
A laser/scanner motor failure has
occurred
X Description:
1 - scanner error
2 - scanner startup error
3 - scanner rotation error
Y Description:
0 - no color
K - black
C - cyan
M - magenta
Y - yellow
1. Press to continue.
2. If the message persists, turn the printer
off and then back on.
3. The connectors in the laser/scanner
control line are not connected properly.
Reseat the DC controller PCB
connectors (J1022, J1026, J1027) and
the laser/scanner connectors (J101A,
J101B, J5001A, J5001B, J5020).
4. Faulty laser/scanner, replace the laser/
scanner.
5. Faulty DC controller PCB, replace the
DC controller PCB.
Table 7-3. Numerical printer messages (continued)
340 Chapter 7 Troubleshooting ENWW