Code :

Code: 622
Description: Paper tray unit communication error
While the BICU communicates with an optional unit, an SC code is displayed if one of following conditions occurs. • The BICU receives the break signal which is generated by the peripherals only just after the main switch is turned on. • When the BICU does not receive an OK signal from a peripheral after sending a command to it.
Causes: • Harness disconnected or broken • BICU defective • External noise • Main board defective in the peripherals
Remedy:

Code: 623
Description: 2nd Paper tray unit communication error
While the BICU communicates with an optional unit, an SC code is displayed if one of following conditions occurs. • The BICU receives the break signal which is generated by the peripherals only just after the main switch is turned on. • When the BICU does not receive an OK signal from a peripheral after sending a command to it.
Causes: • Harness disconnected or broken • BICU defective • External noise • Main board defective in the peripherals
Remedy:

Code: 624
Description: 3rd Paper tray unit communication error
While the BICU communicates with an optional unit, an SC code is displayed if one of following conditions occurs. • The BICU receives the break signal which is generated by the peripherals only just after the main switch is turned on. • When the BICU does not receive an OK signal from a peripheral after sending a command to it.
Causes: • Harness disconnected or broken • BICU defective • External noise • Main board defective in the peripherals
Remedy:

Code: 641
Description: BICU control data transfer abnormal A sampling of the control data sent from the BCU reveals an abnormality.
Causes: • Controller board defective • External noise • BCU board defective
Remedy: Check the connection between the controller board and BICU. Replace the controller board. Replace the BICU.

Code: 652
Description: ID2 mismatching ID2 for @Remote certification is mismatching between the controller board and NVRAM.
Causes: • Used controller board installed • Used NVRAM installed
Remedy: Install the correct controller board or new controller board. Install the correct NVRAM or new NVRAM

Code: 669
Description: EEPROM Communication Error The machine failed to detect a match between the read/write data for the EEPROM on the BICU after 3 attempts.
Causes: • EEPROM installed incorrectly • EEPROM defective. Turn the machine power off/on after replacing the EEPROM. • BICU defective.
Remedy:

Code: 671
Description: Engine board mismatch error Engine board and controller mismatch detected.
Causes: • Wrong engine board installed. • Wrong controller board installed. • Check the type of engine board and controller board.
Remedy: Replace the BICU. Replace the controller board.