I.R.I.S. Cardiris 4 - Manual (Page 40)

Chapter 6 – Scanning cards using the Button Manager
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By means of the Button Manager you can either scan cards:
 automatically when the scanner senses a card, or;
 manually by means of the scanner buttons.
To each of the two scanner buttons, one of four actions can be
assigned:
 scan the card and save the image to the IRISCard folder (inside
the Documents folder);
The image will be stored as a JPEG file.
 scan the card and save the image to a file;
You are prompted to save the card image in any of the common photo
viewing applications.