• Code: E740-0002
• Description: There is an Ethernet board error.
  At time of start-up, the MAC address is found to be illegal. A non-Canon MAC address is detected.
• Remedy: Turn off the main power, and replace the NIC; then, turn on the main power

• Code: E743-0000
• Description: There is a DDI communication error.
  There is an SCI error. The reception data is faulty. A reception time-out condition has occurred. An SEQ timeout error has occurred. An SEQ time-out error has occurred.
• Remedy: Disconnect and connect the DDI-S cable connector; then, as necessary, replace the reader controller PCB or the main controller PCB.

• Code: E744
• Description: There is a language file/boot ROM error.
• Remedy: Download the appropriate language fields of the correct version using the Service Support Tool

• Code: E745
• Description: There is a TokenRing error.
• Remedy:

• Code: E746-0003
• Description: The accessories board is of the wrong type.
  At time of start-up, the UFR board is found to be of the wrong type. (A query is made to find out if the type is correct with reference to the engine ID.)
• Remedy: Replace it with a UFR board of the correct type.

• Code: E746-0004
• Description: The accessories board is of the wrong type.
  At time of start-up, the scanner board is found to be of the wrong type. (A query is made to find out if the type is correct with reference to the engine ID.)
• Remedy: Replace it with a scanner board of the correct type.

• Code: E747
• Description: There is an error in the ASIC for image processing or in the ASIC for memory control/communication control.
  There is an error in IC1015 (ASIC for image processing) or in IC1012 (for memory control/communication control) on the main controller PCB. (e.g., image data transfer error)
• Remedy: Turn off the main power, and check the main controller PCB; then, turn on the main controller PCB

• Code: E748
• Description: CL2 board-dependent board error
• Remedy: 1. Disconnect and then connect 4 to 5 G-chip boards several times. 2. Replace the G-chip board. 3. Replace the main controller PCB.