• Code: E748-2023
• Description: Error in access of Main Controller PCB 2
  Unable to initialize the memory DDR2-SDRAM on the Main Controller PCB 2.
• Remedy: 1. Clean the terminal of the DDR2-SDRAM , and disconnect and then connect it. 2. Replace the DDR2-SDRAM.

• Code: E748-2024
• Description: Error in access of Main Controller PCB 2
  CPU on the Main Controller PCB 2 fails to complete the initialization.
• Remedy: 1. Clean the terminal of DDR2-SDRAM, and remove and then install the DDR2-SDRAM. 2. Check power state of Main Controller PCB 2 and check around the connector. 3. Check power state of the Riser PCB and check around the connector. 4. Replace the Main Controller PCB 2. 5. Replace the Riser PCB. 6. Replace the Main Controller PCB 1.

• Code: E748-2025
• Description: Error in access of Main Controller PCB 2
  Disconnection of the Bypass PCB was detected.
• Remedy: Remove and then install the Bypass PCB.

• Code: E748-2026
• Description: Error in access of Main Controller PCB 2
  Disconnection of the Image Processing Sub PCB was detected.
• Remedy: Remove and then install the Image Processing Sub PCB.

• Code: E748-9000
• Description: System error
• Remedy: Contact to the sales companies.

• Code: E749-0006
• Description: Restart direction due to configuration change
  The option such as the Finisher and Paper Deck was installed or removed when all of following conditions were met and the machine configuration is changed when the main power switch is turned ON. - Settings/Registration > Preferences > Timer/Energy Settings > Quick Startup at Power-on > ON - The Main Power Switch is turned OFF - The power plug of the machine is connected to the output. - The breaker is ON
• Remedy: It is recovered by turning OFF and then ON the main power. CAUTION This machine provides power to some PCBs even when in the main power OFF status. The power supply is not completely OFF by just turning OFF the main power switch and therefore, the machine is unable to detect a configuration change. When disconnecting and then connecting a connector, always disconnect the power plug or turn the breaker OFF. Refer to the Service Manual > Chapter 2 > External and Controls > Quick Startup for details.

• Code: E753-0001
• Description: Download Error
  System Software Update Error Error occurs when updating system software of uninstalled options
• Remedy: 1. Check the log to find where the download error has been occurred. FIN_XX Staple Finisher-XX/Booklet Finisher-XX IFN_XX Inner Finisher-XX G3CCB Super G3 FAX Board G3CCM Super G3 FAX Board When any of the above system software is displayed, check if the target option has been installed. When the target option has not been installed: Turn OFF and then ON the main power supply to restore (since there is no system software to be updated.). When the target option has been installed: Check if the accessory is correctly installed and if the target system software to be downloaded is for the installed option. Then download the appropriate system software again.

• Code: E760-0001
• Description: Main Controller PCB 2 internal error
• Remedy: 1. Turn OFF and then ON the power. 2. Remove and then reinstall the Main Controller PCB 2. 3. Disconnect and then connect the connector connected to the Main Controller PCB 2. 4. Replace the Main Controller PCB 2.