Konica Minolta bizhub PRO 1051 - Manual (Page 197)

PCL Printer Driver Setting (Windows) 8
bizhub PRO 1200/1200P/1051 Printer 8-66
8.17 Quality tab
Performs settings related to Halftones, Brightness and Contrast.
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Detail
The method to open the Printing Preference window depends on OS. Re-
fer to "About Properties window" on Page 8-1 about how to open the
Printing Preference window.