• Code: SC534
• Description: Duplex unit fan error
  The lock signal remained HIGH for 5 sec. while the fan that draws air out of the duplex unit was operating.
• Causes: • Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

• Code: SC535
• Description: Development Intake Fan Error
  The lock signal remained HIGH for 5 sec. while the fan in the Y development unit was operating
• Causes: • Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

• Code: SC536
• Description: Development Intake Fan Error: Y
  The lock signal remained HIGH for 5 sec. while the fan in the development unit was operating.
• Causes: • Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

• Code: SC537
• Description: Development Intake Fan Error: C
  The lock signal remained HIGH for 5 sec. while the fan in the development unit was operating.
• Causes: • Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

• Code: SC538
• Description: Development Intake Fan Error: M
  The lock signal remained HIGH for 5 sec. while the fan in the development unit was operating.
• Causes: • Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

• Code: SC539
• Description: Development Intake Fan Error: K
  The lock signal remained HIGH for 5 sec. while the fan in the development unit was operating.
• Causes: • Fan harness disconnected or damaged • Fan blocked by an obstruction • Fan damaged

• Code: SC540
• Description: Fusing/exit motor error
  Motor operation was detected abnormal at power on.
• Causes: • Check inside the fusing unit for any obstructions • Motor harness loose, broken, defective • Motor or its driver board defective

• Code: SC541
• Description: Heating roller thermistor (center) error 1
  The "floating" (non-contact) thermistor at the center of the heating roller is not operating correction.
• Causes: • Thermistor harness connection loose, disconnected, defective • Thermistor installed incorrectly • Thermistor defective