• Code: 521-02
• Description: Bank 2 motor error (Bank: paper tray unit)
  Early Detection A command to stop the rotation of the motor has been issued right after the power was turned on, but the motor is still rotating. Motor Stop Timing A command to stop the rotation of the motor has been issued, but the motor is still rotating.
• Causes: - Disconnected connector - Broken signal wire - Excessive motor torque
• Remedy: - Check the connector connection. - Turn the power OFF and then ON. - Replace the bank 2 motor.

• Code: 521-03
• Description: Bank 3 motor error (Bank: paper tray unit) Early Detection
  A command to stop the rotation of the motor has been issued right after the power was turned on, but the motor is still rotating. Motor Stop Timing A command to stop the rotation of the motor has been issued, but the motor is still rotating.
• Causes: - Disconnected connector - Broken signal wire - Excessive motor torque
• Remedy: - Check the connector connection. - Turn the power OFF and then ON. - Replace the bank 3 motor.

• Code: 530-00
• Description: Cooling fan error
  The fan motor lock (rotating state) signal is sampled 30 times at 100 ms intervals and the fan goes into an unstable rotating state at least ten times. (No error detection occurs for two seconds after the start of the fan or after changing the speed.)
• Causes: - Failed fan motor. - Disconnected connector.
• Remedy: - Replace the fan motor. - Check the connector.

• Code: 531-00
• Description: Fusing fan error
  The fan motor lock (rotating state) signal is sampled 30 times at 100 ms intervals and the fan goes into an unstable rotating state at least ten times. (No error detection occurs for two seconds after the start of the fan or after changing the speed.)
• Causes: - Failed fan motor - Disconnected connector
• Remedy: - Replace the fan motor. - Check the connector.

• Code: 532-00
• Description: PSU cooling fan
  The fan motor lock (rotating state) signal is sampled 30 times at 100 ms intervals and the fan goes into an unstable rotating state at least ten times. (No error detection occurs for two seconds after the start of the fan or after changing the speed.)
• Causes: - Failed fan motor - Disconnected connector
• Remedy: - Replace the fan motor. - Check the connector.

• Code: 540-00
• Description: Paper Feed Unit error
  Early Detection • A command to stop the rotation of the motor has been issued right after the power was turned on, but the motor is still rotating. Motor Operation Timing • When the motor rotation request or speed change request is issued, the motor is in the stopped state. Motor Stop Timing A command to stop the rotation of the motor has been issued, but the motor is still rotating.
• Causes: - Disconnected connector - Broken signal wire - Excessive motor torque
• Remedy: - Check the connector connection. - Turn the power OFF and then ON. - Replace the Paper Feed Unit.

• Code: 541-00
• Description: Broken fusing (Center) thermopile wire
  At least ten times, the temperature is detected to stay at 0 deg C or less for three seconds.
• Causes: - Broken thermopile wire - Bad connector contact
• Remedy: • Clear the SP: fusing SC. • Replace the connector. • Replace the thermopile.

• Code: 542-02
• Description: Fusing lamp (Center) thermopile not reloaded 1
  The heater (Center) thermopile does not reach 50 deg C 2.4 seconds after the start of heat control (during normal startup control).
• Causes: • Stained thermopile lens • Deformed or floating thermistor • Input voltage out of range • The overtemperature prevention mechanism started working
• Remedy: • Clear the SP: fusing SC. • Clean the thermopile lens. • Replace the thermopile.