• Code: 743
• Description: Finisher output tray motor error The stack height and lever sensors do not detect paper.
• Causes:

• Code: 744
• Description: Finisher output tray motor lock The tray is locked for 10 seconds.
• Causes: • Defective motor

• Code: 745
• Description: Finisher paper detection error The stack height and lever sensors do not correctly detect paper.
• Causes:

• Code: 750
• Description: 1st paper tray unit communication error • A connection error occurs. • The UART reports a communication error. • In other cases than paper transport, after an every-3- second command is sent, the paper tray unit does not respond within 5 seconds.
• Causes: • Defective paper tray unit control board • Defective BCU • Defective IOB • Defective connection (Paper tray - main unit)

• Code: 751
• Description: 2nd paper tray unit communication error • After the 1st paper tray has recognized the 2nd paper tray, the trays cannot communicate with each other. • After the 1st paper tray has recognized the 2nd paper tray, an ATM (CPU reset) is sent from the 2nd paper tray.
• Causes: • Defective paper tray unit control board • Defective connection (1st - 2nd paper tray

• Code: 800
• Description: Video output error (K)
• Causes: Data transfer starts to the BCU, but the transfer completion command does not return to the controller within the required time. Defective controller board

• Code: 801
• Description: Video output error (Y)
• Causes: Data transfer starts to the BCU, but the transfer completion command does not return to the controller within the required time. Defective controller board

• Code: 802
• Description: Video output error (M)
• Causes: Data transfer starts to the BCU, but the transfer completion command does not return to the controller within the required time. Defective controller board