Konica Minolta BIZHUB PRO 1050 User Manual page 384

8
Pile Permission
When another printed document remains in Stacker, gives the permission to
stack the output.
Setting the Pile Permission to OFF allows no pile on the stacker.
When a job the pile of which is not permitted is on the stacker, no pile is
made even if a pile permission is granted.
8-16
PostScript PPD Printer Driver setting (Mac OS X)
bizhub PRO 1050/1050e/1050P/1050eP