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.