• Code: C3201
• Description: Fusing motor’s failure to turn
  The motor lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
• Causes: • Fusing motor (M30) • Printer control board (PRCB)
• Remedy: 1 Check the connector between M30-PRCB CN30for proper connection and correct as necessary. 2 Check the loading status of the fusing unit drive, and correct the error as necessary. 3 M30 operation check PRCB CN30-4 (REM) PRCB CN30-7 (LOCK) 4-K. 4 Replace M30. 5 PRCB ICP9 conduction check. 6 Replace PRCB.

• Code: C3202
• Description: Fusing motor’s turning at abnormal timing
  The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
• Causes: • Fusing motor (M30) • Printer control board (PRCB)
• Remedy: 1 Check the connector between M30-PRCB CN30for proper connection and correct as necessary. 2 Check the loading status of the fusing unit drive, and correct the error as necessary. 3 M30 operation check PRCB CN30-4 (REM) PRCB CN30-7 (LOCK) 4-K. 4 Replace M30. 5 PRCB ICP9 conduction check. 6 Replace PRCB.

• Code: C3303
• Description: Paper cooling fan/out’s failure to turn
  The fan lock signal remains HIGH for a predetermined continuous period of time while the fan remains stationary.
• Causes: • Paper cooling fan/out (FM2) • Printer control board (PRCB)
• Remedy: 1 Check the connector between FM2-relay CN323- PRCB CN1 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM2 operation check PRCB CN1-3 (DRIVE) PRCB CN1-5 (LOCK) 7-K. 4 Replace FM2. 5 Replace PRCB.

• Code: C3305
• Description: Switchback paper cooling fan’s failure to turn
  The fan lock signal remains HIGH for a predetermined continuous period of time while the fan remains stationary.
• Causes: • Switchback paper cooling fan (FM4) • Paper feed/transport drive board (PFTDB)
• Remedy: 1 Check the connector between FM4-relay CN282-relay CN280-relay CN279-PFTDB CN10 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM4 operation check PFTDB CN10-11 (LOCK) 6-P. 4 Replace FM4. 5 PFTDB ICP9 conduction check. 6 Replace PFTDB.

• Code: C3425
• Description: Fusing warm-up trouble
  After warm-up operation starts, the heating roller temperature sensor does not detect a temperature as high as a predetermined one though a predetermined period of time has elapsed.
• Causes: • Fusing unit • Heating roller temperature sensor (TEMS2) • IH power supply (IHPU) • Noise filter (NF1) • Printer control board (PRCB)
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, IHPU, NF1 and PRCB for proper connection and correct or change as necessary. 4 Replace the fusing unit. 5 Replace IHPU. 6 Replace PRCB. 7 Replace NF1.

• Code: C3722
• Description: Fusing abnormally high temperature detection (Edge of the heating roller)
  • The heating roller thermistor/3 continues to detect a temperature higher than a predetermined one for a predetermined period of time. • The hard protection signal at the edges of the heating side remains OFF for a predetermined continuous period of time.
• Causes: • Fusing unit • Heating roller thermistor/3 (TH3) • IH power supply (IHPU) • Noise filter (NF1) • Printer control board (PRCB)
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, IHPU, NF1 and PRCB for proper connection and correct or change as necessary. 4 Replace the fusing unit. 5 Replace IHPU. 6 Replace PRCB. 7 Replace NF1.

• Code: C3725
• Description: Fusing abnormally high temperature detection (Center of the heating roller)
  • Fusing unit • Heating roller temperature sensor (TEMS2) • IH power supply (IHPU) • Noise filter (NF1) • Printer control board (PRCB)
• Causes: • Fusing unit • Heating roller temperature sensor (TEMS2) • IH power supply (IHPU) • Noise filter (NF1) • Printer control board (PRCB)
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, IHPU, NF1 and PRCB for proper connection and correct or change as necessary. 4 Replace the fusing unit. 5 Replace IHPU. 6 Replace PRCB. 7 Replace NF1.

• Code: C3726
• Description: Fusing abnormally high temperature detection (Middle of the heating roller)
  The heating roller thermistor/2 continues to detect a temperature higher than a predetermined one for a predetermined period of time.
• Causes: • Fusing unit • Heating roller thermistor/2 (TH2) • IH power supply (IHPU) • Noise filter (NF1) • Printer control board (PRCB)
• Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the open/close operation of the upper right door. 3 Check the fusing unit, IHPU, NF1 and PRCB for proper connection and correct or change as necessary. 4 Replace the fusing unit. 5 Replace IHPU. 6 Replace PRCB. 7 Replace NF1.