• An SD card is a precision device, so when you handle an SD card, respect the following.
    • When the power is turned ON, do not insert or remove a card.
    • During installation, do not turn the power OFF.
    • Since the card is manufactured to high precision, do not store it in a hot or humid location, or in direct sunlight.
    • Do not bend the card, scratch it, or give it a strong shock.
    • Before downloading firmware to an SD card, check whether write-protection of the SD card is canceled. If write-protection is enabled, an error code (error code 44, etc.) will be displayed during download, and the download will fail.
  • Before updating the firmware, disconnect the network cable and remove the wireless board from this machine (so that they are not accessed during the update).
  • If SC818 is generated during the software update, switch the power OFF -> ON, and complete the update which was interrupted.