SATO WS408DT Technical Manual page 90

5 Update Firmware
8. If you want to update specific files, select the check boxes of those files; if you
want to update all of the firmware files, right-click in the blank area in the list,
and click Select All.
9. Click Send to send the firmware files to your printer. During the transmission,
LED 1 blinks green. In the Download Firmware dialog box, the message shows
the file your printer is downloading, and the progress bar indicates the
progress of downloading.
Update Firmware in SATO WS4 Printer Utility
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