• Code: C-4307
• Description: LPH fan /1 (FM3) rotation abnormality 1. The FM3EM error detection signal is detected twice in succession within a specified period of time after FM3 was turned ON. However, error detection signals (24V cut off/blowout of ICP) are not detected.
• Causes: LPH fan /1 (FM3) Printer control board (PRCB) AC drive board (ACDB)
• Remedy: 1 Check the connector connection and the wiring between PRCB and the fun, and repair it if any abnormality. - 2 Check the connector connection and the wiring between ACDB and the fun, and repair it if any abnormality. - 3 Rotate the fan by I/O or hand, and repair/replace it if any abnormality. 5-L 4 Replace FM3 - 5 Replace PRCB. - 6 Replace ACDB.

• Code: C-4308
• Description: LPH fan /2 (FM25) rotation abnormality + 24V power abnormality. The abnormal status is detected twice in succession after FM25 was turned ON. At this time, an error detection signal (24V cut off) is detected.
• Causes: DC power supply /2 (DCPS /2) AC drive board (ACDB)
• Remedy: 1 Check the connector connection and the wiring between ACDB and DCPS /2, and repair it if any abnormality. - 2 Replace DCPS /2. - 3 Replace ACDB.

• Code: C-4309
• Description: LPH fan /2 (FM25) power abnormality. The FM3EM error detection signal is detected twice in succession within a specified period of time after FM25 was turned ON. At this time, 24V is normal, but an error detection signal (blowout of ICP) is detected.
• Causes: LPH fan /2 (FM25) AC drive board (ACDB)
• Remedy: 1 Check the connector connection and the wiring between ACDB and the fun, and repair it if any abnormality. - 2 Rotate the fan by I/O or hand, and repair/replace it if any abnormality. 6-L 3 Replace FM25 and ACDB.

• Code: C-4310
• Description: LPH fan /2 (FM25) rotation abnormality 2. The FM3EM error detection signal is detected twice in succession within a specified period of time after FM25 was turned ON. However, error detection signals (24V cut off/blowout of ICP) are not detected.
• Causes: LPH fan /2 (FM25) Printer control board (PRCB) AC drive board (ACDB)
• Remedy: 1 Check the connector connection and the wiring between PRCB and the fun, and repair it if any abnormality. - 2 Check the connector connection and the wiring between ACDB and the fun, and repair it if any abnormality. - 3 Rotate the fan by I/O or hand, and repair/replace it if any abnormality. 6-L 4 Replace FM25. - 5 Replace PRCB. - 6 Replace ACDB.

• Code: C-4311
• Description: LPH fan /3 (FM26) rotation abnormality + 24V power abnormality. The abnormal status is detected twice in succession after FM26 was turned ON. At this time, an error detection signal (24V cut off) is detected.
• Causes: DC power supply /2 (DCPS /2) AC drive board (ACDB)
• Remedy: 1 Check the connector connection and the wiring between ACDB and DCPS /2, and repair it if any abnormality. - 2 Replace DCPS /2. - 3 Replace ACDB.

• Code: C-4312
• Description: LPH fan /3 (FM26) power abnormality. The FM26EM error detection signal is detected twice in succession within a specified period of time after FM26 was turned ON. At this time, 24V is normal, but an error detection signal (blowout of ICP) is detected.
• Causes: LPH fan /3 (FM26) AC drive board (ACDB)
• Remedy: 1 Check the connector connection and the wiring between ACDB and the fun, and repair it if any abnormality. - 2 Rotate the fan by I/O or hand, and repair/replace it if any abnormality. 6-L 3 Replace FM26 and ACDB.

• Code: C-4313
• Description: LPH fan /3 (FM26) rotation abnormality 3. The FM26EM error detection signal is detected twice in succession within a specified period of time after FM26 was turned ON. However, error detection signals (24V cut off/blowout of ICP) are not detected.
• Causes: LPH fan /3 (FM26) Printer control board (PRCB) AC drive board (ACDB)
• Remedy: 1 Check the connector connection and the wiring between PRCB and the fun, and repair it if any abnormality. - 2 Check the connector connection and the wiring between ACDB and the fun, and repair it if any abnormality. - 3 Rotate the fan by I/O or hand, and repair/replace it if any abnormality. 6-L 4 Replace FM26. - 5 Replace PRCB. - 6 Replace ACDB.

• Code: C-4314
• Description: Front cooling fan (FM18) rotation abnormality + 24V power abnormality. The abnormal status is detected twice in succession after FM18 was turned ON. At this time, an error detection signal (24V cut off) is detected.
• Causes: DC power supply /2 (DCPS /2) AC drive board (ACDB)
• Remedy: 1 Check the connector connection and the wiring between ACDB and DCPS /2, and repair it if any abnormality. - 2 Replace DCPS /2. - 3 Replace ACDB.