printing problems with brother mfc-6490cw

hi,
i connected my new printer via wlan with my macbook pro (sl 10.6.1). i can print, scan evrything is fine.
but if i want to use the printer with windows xp via parallels i always get the failure-message:

pstopdffilter/pstocupsraster failed with err number -31000

i tried some solutions from this forum, but nothing worked!



can anybody help me?