I've experimented with printing to tyvek before on a Canon ipf700 but I was using standard colorjet pigments which do not adhere to the tyvek.

I tried ringing around to see if I could source inks that would work with tyvek to use with this machine, but inks are expensive and i'd probably need a whole new dedicated printhead. In short I gave up.

What kind of resolutions were you able to achieve on Tyvek?