[Stack Details] Dialog Box

When you use the stack of the stacker for [Paper Output], set the number of copies to output and the automatic ejection timing.
Descriptions under [Finishing] Tab (Settings)

Descriptions of Settings

[Specify Number of Copies to Stack]
Select this when outputting in sets, and enter the number of sheets to be output in each set in [Number of Copies to Stack].
[Timing of Auto Eject from Stacker]
Specify the auto ejection timing from the stacker.