Not sure about the Konica Minolta, but I have the Xerox 6180 mentioned above & it prints beautifully in CorelDraw.
Your bests results on any printer is to use the postscript printer driver not the PCL driver. CorelDraw may require you to use the postscript printer description file (PPD) to print accurately. Do a search in the CorelDraw help file on "postscript printer description" or "PPD".
To set up PPD in CorelDraw X3 go to File> Print > General tab and check the box "Use PPD"
You may have to locate the file for CorelDraw. This file will usually have your printer model number in the name & will end in the file extension ".PPD"
If you can't locate the file, in Windows 2000 go to "Start" > Settings > Printers single Click on your printer to high lite it. Go to File > Server Properties > Driver tab
High lite your printer in the box & click the "Properties" button
Scroll down the list box til you find the file ending in .PPD. Notice the path field above the list box, it will tell you where to find the file or use windows explorer to search for the file name on your hard drive.
Once you have set up PPD, your postscript printer should print accurately. You may have to tweak a few settings in the printer driver.