Canon imagePROGRAF iPF765 MFP M40 - Manual (Page 476)

2
Hold onto the Output stacker handle (a) and pull the
Output stacker release lever (b) towards you.
3
While continuing to hold the Output stacker handle (a),
slowly lower the Output Stacker.
4
Return to the regular position.
Using the Output Stacker iPF765
User's Guide
Handling Paper
Output Stacker
476