• Code: 125
• Description: Multi purpose tray home error (Reserved)
• Remedy:

• Code: 130
• Description: LED Head Over Temperature
• Remedy:

• Code: 134
• Description: LED Head Missing, Color: Black (Reserved)
• Remedy:

• Code: 143
• Description: Drum Up/Down, Color: Black (Reserved)
• Remedy:

• Code: 163
• Description: Toner Sensor Error, Color: Black
• Remedy:

• Code: 170
• Description: Upper Thermistor, State: Short
• Remedy: Turn the power off, then back on again. • Yes Is the thermistor open or shorted? Measure the resistance between thermistor contacts (heater contacts 120V/2Ω or 240V/7Ω, and thermistor contacts 200KΩ at room temperature) . • Yes Replace the fusing unit. • No Do the thermistor connector is connected to the high voltage/sensor board connector? • No Connect the thermistor connector property. • Yes Is the heater of the fusing unit turned on (when the heater is turned on, light is emitted)? • Yes Check the thermistor connector or replace the main control board or the fusing unit. • No Is the AC voltage being supplied to the connector for the heater of the power supply board? • No Replace the main control board or the power supply board. • Yes Check the heater connector cord and the heater connector for poor contact .

• Code: 171
• Description: Upper Thermistor, State: Open
• Remedy: Turn the power off, then back on again. • Yes Is the thermistor open or shorted? Measure the resistance between thermistor contacts (heater contacts 120V/2Ω or 240V/7Ω, and thermistor contacts 200KΩ at room temperature) . • Yes Replace the fusing unit. • No Do the thermistor connector is connected to the high voltage/sensor board connector? • No Connect the thermistor connector property. • Yes Is the heater of the fusing unit turned on (when the heater is turned on, light is emitted)? • Yes Check the thermistor connector or replace the main control board or the fusing unit. • No Is the AC voltage being supplied to the connector for the heater of the power supply board? • No Replace the main control board or the power supply board. • Yes Check the heater connector cord and the heater connector for poor contact .

• Code: 172
• Description: Upper Heater Temp, State: High
• Remedy: Turn the power off, then back on again. • Yes Is the thermistor open or shorted? Measure the resistance between thermistor contacts (heater contacts 120V/2Ω or 240V/7Ω, and thermistor contacts 200KΩ at room temperature) . • Yes Replace the fusing unit. • No Do the thermistor connector is connected to the high voltage/sensor board connector? • No Connect the thermistor connector property. • Yes Is the heater of the fusing unit turned on (when the heater is turned on, light is emitted)? • Yes Check the thermistor connector or replace the main control board or the fusing unit. • No Is the AC voltage being supplied to the connector for the heater of the power supply board? • No Replace the main control board or the power supply board. • Yes Check the heater connector cord and the heater connector for poor contact .