Konica Minolta bizhub C20 Reference Manual page 76

The detected printer appears in the Printer Browser.
5
Select BHC20-xxxxxx in the Printer Name list.
6
Check that KONICA MINOLTA bizhub C20 PPD is selected in the Print
Using list.
52
"xxxxxx" refers to the last six digits of the MAC address (in hexa-
decimal).
Printer Settings (Mac OS X 10.5/10.6)