Konica Minolta Magicolor 1650EN Reference Manual page 56

If KONICA MINOLTA magicolor 1650 does not appear, check that
the printer is turned on and the USB cable is connected, and then
restart the computer.
6
Check that KONICA MINOLTA mc1650 PPD is selected in the Print
Using list.
7
Click Add.
8
Select the appropriate settings in the Optional Input Bin and an
Optional Duplex check box according to your printer setup.
Printer Settings (Mac OS X 10.5) 1-35