• Code: 167
• Display: Service Call 167: Error
• Description: Thermistor Slope Error
• Remedy: 1) Is an Error message displayed? 2) Does the Error take place again?
  Turn ON power again. Leave in that state for 30 minutes then turn ON power again.

• Code: 168
• Display: Service Call 168: Error
• Description: Compensation Thermistor Error
• Remedy: 1) Is an Error message displayed? 2) Does the Error take place again?
  Turn ON power again. Leave in that state for 30 minutes then turn ON power again.

• Code: 169
• Display: Service Call 169: Error
• Description: Upper Side Thermistor Error
• Remedy: 1) Is an Error message displayed? 2) Does the Error take place again?
  Turn ON power again. Leave in that state for 30 minutes then turn ON power again.

• Code: 170 ... 175
• Display: Service Call 170: Error 171: Error 174: Error 175: Error
• Description: Fuser Thermistor short-circuit or Open is detected (High Temperature (HOT) or Low Temperature (COLD))
• Remedy: 1) Is an Error message displayed? 2) Does the Error take place again?
  Turn ON power again. Leave in that state for 30 minutes then turn ON power again.

• Code: 172 ... 176
• Display: Service Call 172: Error 176: Error
• Description: Thermistor indicates High Temperature (HOT) Error.
• Remedy: 1) Is an Error message displayed? 2) Does the Error take place again?
  Turn ON power again. Leave in that state for 30 minutes then turn ON power again.

• Code: 173 ... 177
• Display: Service Call 173: Error 177: Error
• Description: Thermistor indicates Low Temperature (COLD) Error.
• Remedy: 1) Is an Error message displayed? 2) Does the Error take place again?
  Turn ON power again. Leave in that state for 30 minutes then turn ON power again.

• Code: 179
• Display: Service Call 179: Error
• Description: Wrong Fuser Standard
• Remedy: 1) Is the model and power voltage of the fuser mounted proper? 2) Fuser is properly mounted, but Error results again.
  Assemble the proper fuser. Check to see that the fuser is properly assemble. Replace fuser.

• Code: 180 ... 186
• Display: Service Call 180: Error to 186: Error
• Description: The engine detects communication is not possible with the optional unit. 180: Envelope Feeder (Unused) 181: Duplex unit 182: Tray2 unit 183: Tray3 unit 184: Tray4 unit 185: Tray5 unit 186: Finisher unit
• Remedy: 1) Is an Error message displayed? 2) Does the Error take place again?
  Turn ON power again. Replace optional unit.