Epson WorkForce DS-860 - Manual (Page 20)

A
Extend the input tray, slide out and extend the output tray, and then raise the stopper.
Note:
Extend the output tray and use the stopper to match the size of the card you are scanning.
B
Slide the edge guides on the input tray all the way out.
DS-860 User’s Guide
Placing Originals on the Product
20