SC5xx: Paper Feed and Fusing
444
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC559-00 A Consecutive fusing jam
The paper jam counter for the fusing unit reaches three consecutive times (the fusing exit
sensor does not detect the paper).
• Paper jam in the fusing unit.
1. Replace the separation plate.
2. Replace the gear (fusing unit).
3. Replace the fusing unit.
4. Replace the fusing motor.
5. Replace the gear (mainframe), if damaged.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC561-01 A Pressure roller thermistor (center) disconnection
SC561-11 A Pressure roller thermistor (center) disconnection (low power)
Pressure roller thermistor (center) detects a temperature of -20 degrees C for 20 consecutive
seconds after the fusing lamp is activated when the machine starts, or during feeding paper or
in low power.
• Thermistor disconnection
• Loose connector
1. Reconnect the connectors between the fusing drawer connector, the BiCU, and the
pressure roller thermistor.
2. Replace the thermistor.
3. Replace the fusing unit.
4. Replace the harnesses between the BiCU and the fusing unit.
5. Replace the BiCU.
6. Replace the PSU (AC).
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC562-02 A Pressure roller thermistor (center) cannot be reloaded
SC562-12 A Pressure roller thermistor (center) cannot be reloaded (low power)
Pressure roller
thermistor (center) detects that the temperature does not reach a temperature of
40 degrees C for 25 consecutive seconds when the main power is turned on.
• Dirty or deformed thermistor
• Input voltage out of specification (out of warranty)
• Thermostat blown out
1. Check the input voltage and reconnect the power cord.
2. Replace the fusing thermostat.
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