Canon CLC5151 Reference Manual page 371

4
Return the punch waste tray to its original position.
NOTE
If the punch waste tray is not securely in place, you cannot make prints in the Hole Punch mode.
5
Close the front cover of the punch waste tray.
CAUTION
When closing the front cover of the punch waste tray, be careful not to get your fingers
caught, as this may result in personal injury.
Finisher-W1/Saddle Finisher-W2/Puncher Unit-AG1 (Optional)
7
7-31