HP 7400C Series - Manual (Page 70)

70 Using accessories Back to TOC
5 Place the negatives template In the cutout of the large template.
The graphic on the negatives template should be facing up and
closest to the front (non-hinged) portion of the lid.
6 Place the XPA over the large template. Align the XPA to fit in the
corner cutouts on the template.
7 On the Scan menu, click XPA (Negatives).
8 Before making changes, see "Making optional adjustments for
transparent items" on page 72 .
9 When finished using the XPA, on the Scan menu, click Scanner
Glass. Disconnect the XPA if you want.