Cobal Program - Dot matrix Printer - Windows XP

> Situation:
>
> 140+ stores
>
> Store Setup:
> -2 New Computers, either HP or DELL
> -Windows XP PRO
> -One Parallel PCI card for an extra Parallel port.
> -Networked either with DHCP off a firebox, or a standard
> switch with static IP's
> -One computer has two printers on it, the other has 1
>
> Printer Type:
> -OkiData ML320 Turbo. (Dot Matrix)Parallel cable
>
> Computer Software:
> Just windows XP and the store software which is actually
> programmed in COBOL language :/
>
>
>
>
> Problem:
>
> When the store prints their documents through the program
> or when they hit the Print-Screen Button to print a
> screenshot of the program, it prints to the very last
> line of the print job then it will pause before it prints
> the last line for about 5-10 seconds. During this pause
> the print head either jitters or moves back and forth, or
> the printer moves the paper up and down, then it will all
> of a sudden print the last line.
>
> I cannot figure this out for some reason. The store were
> running all DOS computers before with this COBOL program
> and they didnt do this. I just upgraded them all in the
> past year and now this problem has arisen. I have spoke
> with OkiData and they havn't come up with a solution
> either, I will have to call them again. If anyone has
> any thoughts on this please let me know.
>
> Thanks,
>
> Ray.