Filter
Top Products
Message Description Action
50.X FUSER ERROR 50.3 error - Fuser Failure (Abnormally High
Temperature Main 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 main thermistor. Turn the
printer off and remove the fuser. Measure
the resistance between the fuser
connectors J5013LA-2 (MAINTH) and
J5013LA-1 (GND). If it is in the rage of
330k ohms to 50k ohms (at ambient
temperature), replace the fuser.
3. Faulty DC controller PCB. Replace the
DC controller PCB.
50.4 error -
1. Faulty fuser power supply PCB, replace
the low-voltage power supply PCB.
2. Faulty DC controller PCB, replace the
DC controller PCB.
3. For the following errors, perform the
indicated action.
50.8 error - Fuser Failure (Abnormally Low
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. Break 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.
Table 7-3. Numerical printer messages (continued)
ENWW Printer error troubleshooting 339