• Code: 168
• Display: Contact the Service center. 168: Error Note)
• Description: Compensation Thermistor Error
• Remedy: Is the error message displayed? Does this error recur?
  Turn on the power again. After leaving the printer for 30 minutes, turn on the power again.

• Code: 169
• Display: Contact the Service center. 169: Error Note)
• Description: Upper side Thermistor Error
• Remedy: Is the error message displayed? Does this error recur?
  Turn on the power again. After leaving the printer for 30 minutes, turn on the power again.

• Code: 170, 171
• Display: Contact the Service center. 170: Error 171: Error Note)
• Description: Short-circuit or open-circuit of fuser thermistor is detected.
• Remedy: Does this error recur?
  Turn on the power again. Replace the fuser unit.

• Code: 172, 173
• Display: Contact the Service center. 172: Error 173: Error
• Description: The fuser thermistor has detected an abnormal temperature (high temperature or low temperature.)
• Remedy: Turn on the power again. Does this error recur?
  Replace the fuser unit. Replace the low voltage power supply unit.

• Code: 174
• Display: Contact the Service center. 174: Error
• Description: The backup roller thermistor is detected of its short-circuit. (At high temperature)
• Remedy: Does this error recur? Yes Turn on the power again. Replace the fuser unit.

• Code: 175
• Display: Contact the Service center. 175: Error Note)
• Description: The backup roller thermistor is detected of its opencircuit. (At low temperature)
• Remedy: Does this error recur? Yes Turn on the power again. Replace the fuser unit.

• Code: 176, 177
• Display: Contact the Service center. 176: Error 177: Error
• Description: The backup roller thermistor has detected an abnormal temperature (high temperature or low temperature.)
• Remedy: Does this error recur? Turn on the power again. Replace the fuser unit. Replace the low voltage power supply unit.

• Code: 181, 182, 183
• Display: Contact the Service center. 181: Error 182: Error 183: Error
• Description: Option unit I/F error (181=Duplex Unit, 182=2nd Tray, 183=3rd Tray)
• Remedy: Does this error recur? Turn on the power again. Check for sure connection of the connectors. Replace the option unit.