• Code: C-6101
• Description: Scanner motor (M27) movement time abnormality + 24V power abnormality. The scanner home sensor (PS51) or the APS sensor /1 (PS52) does not turn ON within a specified period of time after the home position search is started. At this time, an error detection signal (24V cut off) of M27 is detected.
• Causes: • DC power supply /1 (DCPS/1) • Scanner drive board (SCDB)
• Remedy: 1. Check the connector connection and the wiring between SDB and DCPS /1, and repair it if any abnormality. 2. Replace DCPS /1. 3. Replace SDB.

• Code: C-6102
• Description: Scanner motor (M27) power abnormality. The scanner home sensor (PS51) or the APS sensor /1 (PS52) does not turn ON within a specified period of time after the home position search is started. At this time, 24V is normal, but an error detection signal (blowout of a fuse) is detected.
• Causes: • Scanner motor (M27) • Scanner drive board (SDB)
• Remedy: 1. Check the connector connection and the wiring between SDB and the motor, and repair it if any abnormality. 2. Check the I/O drive of the motor and the coupling of the gear, and repair/replace it if any abnormality. (Wiring diagram:Main body (2/4): 21-J) 3. Replace M27 and SDB at a time.

• Code: C-6103
• Description: Scanner motor (M27) movement time abnormality. The scanner home sensor (PS51) or the APS sensor /1 (PS52) does not turn ON within a specified period of time after the home position search is started. At this time, an error detection signal (blowout of a fuse/24V cut off) of M27 is not detected.
• Causes: • Scanner home sensor (PS51) • APS sensor /1 (PS52) • Scanner motor (M27) • Scanner drive board (SDB)
• Remedy: 1. Check the scanner drive section, and repair it if any abnormality. 2. Check the connector connection and the wiring between SDB and motor/sensor, and repair it if any abnormality. 3. Check the I/O and drive of the sensor, and repair/replace it if any abnormality (Wiring diagram: Main body (4/4): 18-K, 20-N) 4. Check the I/O drive of the motor and the coupling of the gear, and repair/replace it if any abnormality (Wiring diagram: Main body (4/4): 15-K) 5. Replace PS51 and PS52. 6. Replace M27. 7. Replace SDB.

• Code: C-6301
• Description: Scanner cooling fan (FM19) rotation abnormality + 24V power abnormality. The FM19EM error detection signal is detected twice in succession within a specified period of time after FM19 was turned ON. At this time, an error detection signal (24V cut off) is detected.
• Causes: • DC power supply /2 (DCPS/2) • Scanner drive board (SCDB)
• Remedy: 1. Check the connector connection and the wiring between SDB and DCPS /2, and repair it if any abnormality. 2. Replace DCPS /2. 3. Replace SDB.

• Code: C-6302
• Description: Scanner cooling fan (FM19) power abnormality. The FM19EM error detection signal is detected twice in succession within a specified period of time after FM19 was turned ON. At this time, 24V is normal, but an error detection signal (blowout of a fuse) is detected.
• Causes: • Scanner cooling fan (FM19) • Scanner drive board (SDB)
• Remedy: 1. Check the connector connection and the wiring between SDB and the fan, and repair it if any abnormality. 2. Rotate the fan or I/O by hand, and repair it if any abnormality. (Wiring diagram: Main body (4/4): 15-K) 3. Replace FM19 and SDB.

• Code: C-6303
• Description: Scanner cooling fan (FM19) rotation abnormality. The FM19EM error detection signal is detected twice in succession within a specified period of time after FM19 was turned ON. At this time, an error detection signal (blowout of a fuse/24V cut off) is not detected.
• Causes: • Scanner cooling fan (FM19) • Scanner drive board (SDB) • Printer control board (PRCB)
• Remedy: 1. Check the connector connection and the wiring between SDB and the fan, and repair it if any abnormality. 2. Check the connector connection and the wiring between SDB and PRCB, and repair it if any abnormality. 3. Rotate the fan or I/O by hand, and repair it if any abnormality. (Wiring diagram: Main body (4/4): 15-K) 4. Replace FM19. 5. Replace SDB. 6. Replace PRCB.

• Code: C-6701
• Description: Filter coefficient abnormality. When processing images, a filter coefficient cannot be created normally.
• Causes: Image processing board (IPB)
• Remedy: 1. After turning OFF the sub power switch, turn OFF the main power switch and unplug the power plug. Restart the main body after 10 seconds. 2. Check the connector connection and the wiring on IPB, and repair it if any abnormality. 3. Rewrite the firmware for image control. 4. Replace IPB.

• Code: C-6702
• Description: Scanner FIFO abnormality. FIFO address abnormality for compression is indicated.
• Causes: Image processing board (IPB)
• Remedy: 1. After turning OFF the sub power switch, turn OFF the main power switch and unplug the power plug. Restart the main body after 10 seconds. 2. Check the connector connection and the wiring on IPB, and repair it if any abnormality. 3. Rewrite the firmware for image control. 4. Replace IPB.