• Code: SC42-08
• Description: The rotation of the write unit cooling fan /2 (FM8) is checked and the 24V power source is also checked. An abnormal condition occurs with the FM8 EM signal a specified period of time after the write unit cooling fan /1 (FM5) and /2 (FM8) turns ON. This abnormal condition recurs even a specified period of time after FM5/FM8 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
• Causes: DC power supply /2 (DCPS2) AC drive board (ACDB) Write unit cooling fan /1 (FM5) Write unit cooling fan /2 (FM8) Cooling fan /4 (FM12) Wiring harness earth fault Loose connection

• Code: SC42-09
• Description: The blowout of ICP for the write unit cooling fan /2 (FM8) in the AC drive board (ACDB) is checked. An abnormal condition occurs with the FM8 EM signal a specified period of time after the write unit cooling fan /1 (FM5) and /2 (FM8) turns ON. This abnormal condition recurs even a specified period of time after FM5/FM8 is turned OFF and then turned ON, and an error detection signal (blowout of ICP) is detected.
• Causes: DC power supply /2 (DCPS2) AC drive board (ACDB) Write unit cooling fan /1 (FM5) Write unit cooling fan /2 (FM8) Cooling fan /4 (FM12) Wiring harness earth fault Loose connection

• Code: SC42-10
• Description: The rotation of the write unit cooling fan /3 (FM8) is checked. An abnormal condition occurs with the FM8 EM signal a specified period of time after the write unit cooling fan /1 (FM5) and /2 (FM8) turns ON. This abnormal condition recurs even a specified period of time after FM5/FM8 is turned OFF and then turned ON, and an error detection signal (24V cut off/blowout of ICP) is not detected.
• Causes: DC power supply /2 (DCPS2) AC drive board (ACDB) Write unit cooling fan /1 (FM5) Write unit cooling fan /2 (FM8) Cooling fan /4 (FM12) Wiring harness earth fault Loose connection

• Code: SC42-11
• Description: When the print is started, an error detection signal of the writing section cooling fan /2 (FM8) is detected.
• Causes: DC power supply /2 (DCPS2) AC drive board (ACDB) Write unit cooling fan /1 (FM5) Write unit cooling fan /2 (FM8) Cooling fan /4 (FM12) Wiring harness earth fault Loose connection

• Code: SC42-12
• Description: The rotation of the cooling fan /4 (FM12) is checked and the 24V power source is also checked. An abnormal condition occurs with the FM12 EM signal a specified period of time after FM12 turns ON. This abnormal condition recurs even a specified period of time after FM12 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
• Causes: DC power supply /2 (DCPS2) AC drive board (ACDB) Cooling fan /4 (FM12) Wiring harness broken Loose connection

• Code: SC42-13
• Description: The blowout of ICP for the cooling fan /4 (FM12) in the AC drive board (ACDB) is checked. An abnormal condition occurs with the FM12 EM signal a specified period of time after FM12 turns ON. This abnormal condition recurs even a specified period of time after FM12 is turned OFF and then turned ON, and an error detection signal (blowout of ICP) is detected.
• Causes: DC power supply /2 (DCPS2) AC drive board (ACDB) Cooling fan /4 (FM12) Wiring harness broken Loose connection

• Code: SC42-14
• Description: Rotation of the cooling fan /4 (FM12) is checked. An abnormal condition occurs with the FM12 EM signal a specified period of time after FM12 turns ON. This abnormal condition recurs even a specified period of time after FM12 is turned OFF and then turned ON, and an error detection signal (24V cut off/blowout of ICP) is not detected.
• Causes: DC power supply /2 (DCPS2) AC drive board (ACDB) Cooling fan /4 (FM12) Wiring harness broken Loose connection

• Code: SC42-16
• Description: The rotation of the polygon cooling fan (FM9) is checked and the 24V power source is also checked. An abnormal condition occurs with the FM9 EM signal a specified period of time after FM9 turns ON. This abnormal condition recurs even a specified period of time after FM9 is turned OFF and then turned ON, and an error detection signal (24V cut off) is detected.
• Causes: DC power supply /2 (DCPS2) AC drive board (ACDB) Polygon cooling fan (FM9) Wiring harness broken Loose connection