Xp pro print garbage on printronix P5005B...?

Hi people.
I have some problem with one network printer, Printronix P5005B,
before was working with win 98 SE and dont send any garbage, i install
windows xp pro on the same computer, install the printer and all the
time print this code on the first page:

%-00004x
|};KO

This is only with XP, because if we send the same file with xin98
there is no garbage.

Went we send one big file, about 15 continues pages, print
%-00004x on the first line, them print the data, jump the next page and
only print |};KO, jump the next page and repeat the garbage.

Iam investigating about this, we are losing a lot of paper,
normally one file is about 15 or 20 pages, now if we add the garbage
pages...

Any tip or information about i will apreciate, thanks all for your
time.

*windows xp pro all patches
*printronix P5005B Network