• Code: C-5315
• Description: Rotation of the ADU cooling fan / 2 (FM11) is checked. An abnormal condition occurs with the FM11 EM signal a specified period of time after FM11 is turned ON. This abnormal condition recurs even a specified period of time after FM11 is 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 ADU cooling fan /2 (FM11) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

• Code: C-5316
• Description: An abnormal condition occurs with the FM23 EM signal a specified period of time after the ADU cooling fan /4 (FM23) is turned ON. This abnormal condition recurs even a specified period of time after FM23 is 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 ADU cooling fan /4 (FM23) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

• Code: C-5317
• Description: Rotation of the ADU cooling fan / 4 (FM23) is checked. An abnormal condition occurs with the FM23 EM signal a specified period of time after FM23 is turned ON. This abnormal condition recurs even a specified period of time after FM23 is 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 ADU cooling fan /4 (FM23) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

• Code: C-5318
• Description: An abnormal condition occurs with the FM25 EM signal a specified period of time after the ADU cooling fan /5 (FM25) is turned ON. This abnormal condition recurs even a specified period of time after FM25 is 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 ADU cooling fan /5 (FM25) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

• Code: C-5319
• Description: Rotation of the ADU cooling fan / 5 (FM25) is checked. An abnormal condition occurs with the FM25 EM signal a specified period of time after FM25 is turned ON. This abnormal condition recurs even a specified period of time after FM25 is 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 ADU cooling fan /5 (FM25) ADU drive board (ADUDB) DC power supply /2 (DCPS2)

• Code: C-5320
• Description: An abnormal condition occurs with the FM18 EM signal a specified period of time after the cooling fan /5 (FM18) is turned ON. This abnormal condition recurs even a specified period of time after FM18 is 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 /5 (FM18) Printer control board (PRCB) DC power supply /2 (DCPS2)

• Code: C-5321
• Description: The blowout of ICP for the cooling fan /5 (FM18) is checked. An abnormal condition occurs with the FM18 EM signal a specified period of time after FM18 is turned ON. This abnormal condition recurs even a specified period of time after FM18 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 /5 (FM18) Printer control board (PRCB) DC power supply /2 (DCPS2)

• Code: C-5322
• Description: Rotation of the cooling fan /5 (FM18) is checked. An abnormal condition occurs with the FM18 EM signal a specified period of time after FM18 is turned ON. This abnormal condition recurs even a specified period of time after FM18 is 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 /5 (FM18) Printer control board (PRCB) DC power supply /2 (DCPS2)