Description: Low-voltage power supply fan error. Low-voltage power supply temperature error.
Causes: Is fan in low-voltage power supply unit operating? Is fan connector connected properly?
Code: 123
Display: Service call 123:Error
Description: Abnormal environment humidty / Not connected humidity sensor
Causes: Does error reoccur?
Code: 124
Display: Service call 124:Error
Description: Abnormal environment temperature.
Causes: Does error reoccur?
Code: 126
Display: Service call 126:Error
Description: Condensation in the printer was detected.
Causes: 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?
Code: 127
Display: Service call 127:Error
Description: Error detected at the fuser unit cooling fan.
Causes: Is fan connector connected properly? Does error reoccur?
Code: 131 ... 134
Display: Service call 131:Error ~ 134:Error
Description: LED head fault detected. (131 = Y, 132 = M, 133 = C, 134 = K)
Causes: Is LED head properly set? Does error reoccur?
Code: 142
Display: Service call 142:Error
Description: Error detected at ID position of Up/ Down
Causes: Is ID unit set properly? Does error reoccur?
Code: 150 ... 153
Display: Service call 150:Error ~ 153:Error
Description: ID unit fuse cannot be disconnected. (150 = Y, 151 = M, 152 = C, 153 = K)
Causes: Is ID unit setting proper? Does error reoccur?