Konica Minolta bizhub PRO 1051 - Manual (Page 211)

PostScript PPD Printer Driver setting (Windows) 9
bizhub PRO 1200/1200P/1051 Printer 9-3
9.2 About button
Buttons common to each tab of the [Properties] window are shown below.
Button Function
OK When the [OK] is clicked, all tab settings are saved with the close of the
properties window.
Cancel When the [Cancel] is clicked, all tab settings are cancelled with the
close of the properties window.
Apply When the [Apply] is clicked, the present tab settings are saved. This
button is useful when you want conduct other settings in other tabs,
and the present tab settings are registered before using other tabs.