• Code: 122
• Display: SERVICE CALL 122:Error
• Description: Low-voltage power supply fan error. Low-voltage power supply temperature error.
• Remedy: Is fan in low-voltage power supply unit operating? Is fan connector connected properly?
  Check connections for connector of fan. Replace low-voltage power supply. Replace fan motor. Replace low-voltage power supply.

• Code: 123
• Display: SERVICE CALL 123:Error
• Description: Abnormal environment humidty /Not connected humidity sensor.
• Remedy: Does error reoccur? Yes Power OFF/ON Replace the operator panel PCB (PRP).

• Code: 124
• Display: SERVICE CALL 124:Error
• Description: Abnormal environment temperature.
• Remedy: Does error reoccur? Yes Power OFF/ON Replace the operator panel PCB (PRN).

• Code: 126
• Display: SERVICE CALL 126:Error
• Description: Condensation in the printer was detected.
• Remedy: Condensation iss likely to occur in printers carried from the outside. Turn on the printer again after it is exposed to room temperature for two hours to half a day. Does the error reoccur? Yes Turn on the printer again after it is left alone. Replace the operator panel PCB (PRP).

• Code: 127
• Display: SERVICE CALL 127:Error
• Description: Error detected at the fuser unit cooling fan.
• Remedy: Is fan connector connected properly? Does error reoccur?
  Connect properly again. Replace fan motor. Replace PU PCB.

• Code: 128
• Display: SERVICE CALL 128:Error
• Description: Error detected at the fuser-end cooling fan.
• Remedy: Is fan connector connected properly? Does error reoccur?
  Connect properly again. Replace fan motor. Replace PU PCB.

• Code: 131 ... 134
• Display: SERVICE CALL 131:Error ~ 134:Error
• Description: LED head fault detected. (131 = Y, 132 = M, 133 = C, 134 = K)
• Remedy: Is LED head properly set? Is the LED head fuse blown out? Does error reoccur?
  Install the LED head unit properly. Check the LED head fuse on the CU PCB. Change CU PCB. Turn on the power again. Replace the LED head unit.

• Code: 142
• Display: SERVICE CALL 142:Error
• Description: Error detected at ID position of Up/Down(142 )
• Remedy: Is ID unit set properly? Does error reoccur?
  Reset ID unit. Turn power ON again. Replace ID Up/Down sensor.