Dot matrix printer paper ejection problem..need solutions

Question

Iam developing a billing software in which the printing is done on a dotmatrix printer. When the bill is printing more paper is ejects out of the printer. I tried the pagesize property. But didn't work. When i tried to set the page size in printer properties it worked for some. but when bil becomes too large some data are nlt printing.Plz help me...Urgent..