Ricoh AP3850C

  • Code: SC556
  • Description: Pressure roller fusing lamp temperature fluctuation The pressure roller temperature changes by ±20°C or more in one second. This occurs three times in one minute or two consecutive times.
  • Causes: • Loose connection of the pressure roller thermistor • Loose connection between the fusing unit and main frame
  • Remedy: 1. Check if the fusing unit is properly set and connected to the main frame. 2. Check if the pressure roller thermistor connector is firmly connected. 3. Replace the fusing unit.
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