• Code: E743-0001
• Description: DDI communication error
  The reader controller PCB detects communication error between the main controller PCB and the reader controller PCB.
• Remedy: Disconnect and then connect the reader communication cable connector, Replace the reader controller PCB, Replace the main controller PCB

• Code: E744
• Description: Language file/BootROM error
• Remedy: Upgrade the version of the Language file

• Code: E745
• Description: Token ring board error
• Remedy: Check on connection of the token ring board, Replace the token ring board

• Code: E746-0003
• Description: Option board error
  The UFR PCB for other model is detected at start-up.
• Remedy: Replace with an appropriate UFR PCB

• Code: E746-0004
• Description: Option board error
  The main controller PCB (sub) for other model is detected at start-up.
• Remedy: Replace with an appropriate main controller PCB (sub)

• Code: E747
• Description: Main controller PCB error (Image processing ASIC or memory control/communication control ASIC)
• Remedy: Turn OFF and back ON the main power, Replace the main controller PCB (main)

• Code: E748
• Description: Main controller PCB error
• Remedy: Disconnect and then connect the main controller PCB (Sub SJ/PE/R), Replace the main controller PCB (Sub SJ/PE/R), Disconnect and then connect the relay PCB (GU-short), Replace the relay PCB (GU-short), Disconnect and then connect the open interface PCB, Replace the open interface PCB, Replace the main controller PCB (main)

• Code: E749-0001
• Description: Restart in accordance with a change of the product configuration
  The BootROM is replaced with a different type (when the PDL option is installed)
• Remedy: Turn OFF and back ON the main power to recover