HP ScanJet Scanners User Manual page 14

2-5 Scanning Pages from the ADF
4 Put the top end of the paper stack face up on the input
tray with the first page to be scanned at the top of the
stack.
5 Push the paper stack up against the side of the ADF
input tray nearest the lever. Slide it into the ADF until
the paper stack does not move any further:
ADF
posts
Placing paper in
the input tray