• Code: C-5104#
• Description: The 24V power source for the key counter (KCT) is checked. When KCT is turned ON from OFF, an error detection signal (blowout of ICP/24V cut off) is detected.
• Causes: Confirmation of the wiring harness and the connector Key counter (KCT) AC drive board (ACDB) DC power supply /2 (DCPS2)

• Code: C-5105#
• Description: The blowout of ICP for KCT in the AC drive board (ACDB) is checked. When the key counter (KCT) is turned ON from OFF, an error detection signal (blowout of ICP) is detected. However, an error detection signal (24V cut off) is not detected.
• Causes: Confirmation of the wiring harness and the connector Key counter (KCT) AC drive board (ACDB) DC power supply /2 (DCPS2)

• Code: C-5301
• Description: The rotation of the cooling fan /1 (FM26) and /2 (FM27) is checked, and the 24V power source is also checked. An abnormal condition occurs with the FM26 and FM27 EM signals a specified period of time after FM26 and FM27 are turned ON. This abnormal condition recurs even a specified period of time after FM26 and FM27 are turned OFF and then ON again, and an error detection signal (24V cut off) is detected.
• Causes: Confirmation of the wiring harness and the connector Cooling fan /1 (FM26) Cooling fan /2 (FM27) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

• Code: C-5302
• Description: The rotation of the cooling fan /1 (FM26) and /2 (FM27) is checked. An abnormal condition occurs with the FM26 and FM27 EM signals a specified period of time after FM26 and FM27 are turned ON. This abnormal condition recurs even a specified period of time after FM26 and FM27 are turned OFF and then ON again, and an error detection signal (24V cut off) is not detected.
• Causes: Confirmation of the wiring harness and the connector Cooling fan /1 (FM26) Cooling fan /2 (FM27) AC drive board (ACDB) Printer control board (PRCB) DC power supply /2 (DCPS2)

• Code: C-5303#
• Description: The blowout of ICP for the cooling fan /1 (FM26) is checked. An abnormal condition occurs with the FM26 EM signal a specified period of time after FM26 is turned ON. This abnormal condition recurs even a specified period of time after FM26 is turned OFF and then ON again, and an error detection signal (blowout of ICP) is detected.
• Causes: Confirmation of the wiring harness and the connector Cooling fan /1 (FM26) AC drive board (ACDB) Printer control board (PRCB)

• Code: C-5304#
• Description: Rotation of the cooling fan /1 (FM26) is checked. An abnormal condition occurs with the FM26 EM signal a specified period of time after FM26 is turned ON. This abnormal condition recurs even a specified period of time after FM26 is turned OFF and then ON again, and an error detection signal (blowout of ICP) is not detected.
• Causes: Confirmation of the wiring harness and the connector Cooling fan /1 (FM26) AC drive board (ACDB) Printer control board (PRCB)

• Code: C-5305#
• Description: The blowout of ICP for the cooling fan /2 (FM27) is checked. An abnormal condition occurs with the FM27 EM signal a specified period of time after FM27 is turned ON. This abnormal condition recurs even a specified period of time after FM27 is turned OFF and then ON again, and an error detection signal (blowout of ICP) is detected.
• Causes: Confirmation of the wiring harness and the connector Cooling fan /2 (FM27) AC drive board (ACDB) Printer control board (PRCB)

• Code: C-5306#
• Description: Rotation of the cooling fan /2 (FM27) is checked. An abnormal condition occurs with the FM27 EM signal a specified period of time after FM27 is turned ON. This abnormal condition recurs even a specified period of time after FM27 is turned OFF and then ON again, and an error detection signal (blowout of ICP) is not detected.
• Causes: Confirmation of the wiring harness and the connector Cooling fan /2 (FM27) AC drive board (ACDB)