SD cards are used to update the software and to back up important data. Here is a list of the firmware modules that can be updated or restored from an SD card:
- GW controller software
 - BCU software
 - LCDC (operation panel) software
 - Network Sys (network) software
 - Web Sys (Web Image Monitor)
 - Document Server software
 - NFA (Net File) software
 - Printer application software
 - Scanner application software
 - DESS (encryption module) software
 
- Never connect or remove an IC card or SD card with the machine power turned on.
 - Never turn the power off while the machine is downloading data from an IC card or SD card.
 - The IC cards and SD card are precision items. Use them carefully.
 - Never store IC cards or SD cards in a location where they are exposed to high temperature, high humidity, or direct sunlight.
 - Never bend an IC card or SD card, scratch it, or expose it to strong vibration.
 - Before uploading data to an SD card, always confirm that its write-protect switch is off.