Canon IR1600 Reference Manual page 47

2
Adjust the slide guides to fit the size of the originals.
IMPORTANT
Do not add or remove originals while they are being scanned.
When scanning is completed, remove the originals from the original output tray to avoid paper jams.
NOTE
The scanned originals are output face down to the original output tray.
Original output tray
Placing Originals
1
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