Encode magnetic stripe using Microsoft Access 2003

Sounds to me like you need to contact the vendor in this regard. While I'm sure you are supplied a printer driver, and Access can use that driver, I'm sure you'll need to send the "report" to that printer in a particular format, and your best source of information would be the manufacturer:

http://www.datacard.com/products/products.jhtml?category=Summary&contentId=15542778ZYRs6Y0Smm1

Here's the SDK for that printer:
http://www.datacard.com/downloads/technical_support.jhtml?modelName=SP75+Plus

I know i just contacted the vendor to tell me which escape characters to use for sending data on magnetic stripe tracks. I just want the way to send these characters through microsoft access 2003.

Thanks

This would depend on what your printer expects, which is what the SDK would tell you. In many cases with items like your printer, you cannot directly "print" to the printer but must instead use the SDK to send that information. Your vendor should be able to give you sample code to use, although they may not provide this to you for Access .... just use the code for VB6 and you should be able to port that directly.