Scheduler - Konica Minolta Magicolor 5650EN Reference Manual

To print on both sides of the paper, Duplex Unit must be selected
under Installable Options (p. 35).
The Long-edged biding check box or Short-edged biding check
box can be selected even when the Duplex Unit is not installed. How-
ever, in this case, the print job will be cancelled.

Scheduler

The Scheduler section is used to specify the timing and priority for printing
jobs.
Print Document
Now:
At:
On Hold: Select this option to hold the print job.
Priority
Select the priority for printing jobs that are being held.
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Select this option to begin printing immediately.
Specify the time to begin printing.
Specifying Print Settings (Mac OS X 10.4)