1. Complete the procedure of "Preparation at the Customer Site". [Link to Preparation at the Customer Site]
  2. Remove all the USB devices that may be connected to the E-25C.
  3. Perform the shutdown procedure from the copier operation panel [Link to Shutting Down the E-25C Only]
  4. When the E-25C power is down (that is when the diagnostic LEDs are off), turn the main power switch of the E-25C to OFF.
  5. Disconnect all cables from the E-25C connector panel, except the power cable.
    Be sure to leave the power cable connected between the E-25C and the power outlet.
  6. Set the E-25C service switches as shown below. ("1" ON, "2" OFF)

  7. Attach the prepared USB flash drive to one of the USB ports on the E-25C.

    • If dust covers are attached to the USB Type A ports, remove one dust cover using needle-nosed pliers.
    • When using a USB 3.0 flash drive, make sure to attach the USB flash drive to one of the USB 3.0 ports, which are located on the rear of the E-25C. Otherwise installation time will take considerably longer than expected.


    [A] USB 2.0 ports
    [B] USB 3.0 ports

  8. Turn the main power switch of the E-25C to ON, then press and release the soft power push button on the front of the E-25C and wait until installation is complete. (The E-25C shuts down automatically after installation is complete.)

    • The diagnostic LEDs increment quickly to initialize, then the diagnostic LEDs display C1, C2, C3 continuously, showing that installation (file transfer phase) is under progress.

    • Installation (file transfer phase) takes approximately 10 minutes. The LED on the USB flash drive should show that files are being transferred.

  9. Turn the main power switch of the E-25C to OFF and remove the USB flash drive from the E-25C.
  10. Set the service switches in the normal position. (Not ON)
  11. Reconnect all cables that you removed earlier from the E-25C rear panel.