PSander,
Seems that the problem could be ralated to the printer's driver implementation, there is another posting with some good information on this:
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RNAME=ViewQuestion&HOID=5065000000080000005F410000&ECategory=LabWindows%2FCVI
DMcC explains how this works and there are also there some things to try to get arround this problem. I would also appreciate if you could give me some specifics of the printer that you are using so that we can keep track of the problem and work on it. I hope this help and appreciate your response,
Regards,
Juan Carlos Contreras
National Instruments