I.R.I.S. IRIScan Pro 3 Wi-Fi User Guide - Manual (Page 31)

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3.7 Power off the Scanner
When your scanning job is completed, move the Power switch to the [OFF] position to turn
off the scanner. The LCD display will be off.

When the scanner is left idle for 3 minutes, the default Power Save mode automatically
powers off the scanner.
3.8 View or Download the Scanned Images
Connect the scanner to your computer to access the scanned images from the scanner’s
built-in disk or from the inserted memory card without using an independent card reader.
While connected, you can view your scanned image files, copy and paste files from one
storage area to the other, or delete files you don’t wish to keep.