Canon CLC5151 Reference Manual page 152

Staple Mode
The prints are automatically collated into sets arranged in page order and stapled. Prints are stapled in
the following places:
• If an original is placed on the platen glass:
3
• If originals are placed into the optional feeder:
CAUTION
Do not place your hands in the part of the tray where stapling is performed (near the rollers)
when a finisher is attached, as this may result in personal injury.
3-20
Finisher-X1
Upper Left
Upper Left
Upper Left
Upper Left