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: Service call 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: Service call 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: Service call 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.
Code: 190
Display: Re-start the printer. 190: Error
Description: System memory overflow
Remedy: Does this error recur? Yes Turn on the power again. Increase the addon RAM DIMM.
Code: 200, 202
Display: Service call 200: Error - 202: Error
Description: PU Firmware Download Error
Remedy: Error has occurred during rewriting of the PU firmware. After turning on the power again, perform downloading again. (This error does not occur during the normal operation because this processing is not carried out.)