Sharp AR-6020V Service Manual page 76

6) Make sure that "Special (MCU)" tree is displayed. (If it doesn't be
displayed, check the connection of USB cable and execute operation
5) again.)
Double click the "Special (MCU)" in main tree to extend. And double
click "DWL download" in the sub-tree.
7) Select a download file (*.dwl).
8) Download process automatically starts after selecting a download
file.
9) The download process finishes, displaying following messages.
*Nova Light don't display "OFF" on the panel.
10) Wait a few minutes until the following panel indication. "AUTO",
"TEXT" and "PHOTO" LEDs are blink. After make sure that above
indication, turn off the MFP power and disconnect USB cable.
11) Exit the "Maintenance.exe" and turn on the MFP.
4.Receive the ROM version
Click "Reconnect Copier". The version is displayed at the left part of the
window. .
AR-6020V FIRMWARE UPDATE 8-4