do not want to do many line feed after printing the document

Hi All!

I am using the Generic/Text only printer driver to print on Star Sp-512 Point of sale Line Mode Printer.
After printing the document, it occurs that many lines are feed up and waste the paper.
How can i do that?
Please help me as soon as possible.

Thanks & Regards,
Zin Minn Htay
Software Engineer
Software Development Section