I found a working Vista x64 Konica Minolta Magicolor 2300DL driver.
'64bitdrivers.com:: Konica Minolta Magicolor 2300DL for XP x64'
(
http://64bitdrivers.com/driver.php?id=1490)
1. Control PanelHardware and SoundPrinterAdd Printer
2. Select Local Printer not Network Printer!
3. Create new port Standard TCP/IP port, port 9100 RAW.
4. Select "Have Disk" and browse to driver downloaded from
64bitdrivers.com
Woot!
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Kent_Diego