Canon imageCLASS 2300 Basic Manual page 42

Place your originals as far into the feeder as they will go.
A beep sounds when the originals are set correctly.
2
Adjust the slide guides to fit the size of your originals.
IMPORTANT
Do not add or remove originals while they are being scanned.
Do not place objects in the original output area. Blocking the paper delivery slot
may damage the originals.
When scanning is complete, remove the originals from the original output tray to
avoid paper jams.
Original Output Tray
Placing Originals (For Copying, Faxing, Scanning)
2
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