• Code: 127
• Display: Service call 127: Error
• Description: Fuser exhaust fan error
• Remedy: Is the fan connector connected normally? Does this error recur?
  Re-connect it normally. Replace the fan motor. Replace the CU/ PU board.

• Code: 128
• Display: Service call 128: Error
• Description: ID cooling fan error
• Remedy: Is the fan connector connected normally? Does this error recur?
  Re-connect it normally. Replace the fan motor. Replace the CU/ PU board.

• Code: 131 ... 134
• Display: Service call 131: Error~ 134: Error
• Description: LED head detection error (131=Y, 132=M, 133=C, 134=W/K)
• Remedy: Is the LED head connected normally? Is the LED HEAD fuse brown? Does this error recur?
  Install the LED head unit normally. Check the LED HEAD fuse. After checking fuse Turn on the power again. For the method of checking the LED head unit fuse.

• Code: 142
• Display: Service call 142: Error
• Description: ID Up/Down position detection error
• Remedy: Is the ID unit caught by anything when it is removed and reinstalled? Does this error recur?
  Re-install the ID unit. Turn on the power again. Replace the ID UP/DOWN sensor.

• Code: 154
• Display: Service call 154: Error
• Description: The belt unit fuse has blown out.
• Remedy: Is the belt unit connected normally? Does this error recur?
  Re-install the belt unit. Turn on the power again. After checking for the sure cable connection, replace the CU/PU board.

• Code: 155
• Display: Service call 155: Error
• Description: The fuser unit fuse has blown out.
• Remedy: Is the fuser unit installed normally? Does this error recur?
  After cleaning the connecting connector of the fuser unit, re-install the fuser unit. Turn on the power again. After checking for the sure cable connection, replace the CU/PU board.

• Code: 160 ... 163
• Display: Service call 160: Error~ 163: Error
• Description: Toner sensor detection error. (160=Y, 161=M, 162=C, 163=W/K) This error does not occur with the default settings.
• Remedy: Is the toner cartridge installed? Is the lock lever of the toner set? Does this error recur?
  Install the toner cartridge. Rotate the lock lever of toner to the lock position. Turn on the power again. Replace the toner sensor assembly.

• Code: 167
• Display: Service call 167: Error
• Description: Thermistor Slope Error
• Remedy: Is the error message displayed? Does this error recur?
  Turn on the power again. After leaving a printer for 30 minutes, turn on the power again.