B9180 good enough for 2-sided printing?

I have a Designjet 30 and it does not print straight enough for 2-sided printing at 13 x 19. I am printing a product design portfolio with graphics, text and images through a RIP on Ilford Gallerie Smooth Heavyweight Paper. HP tech support says the alignment is within its tolerances, but the skewing is very noticeable, so I guess I need a more accurate printer.

Does anyone know how straight the B9180 prints through its single-sheet front paper path? I would appreciate any input. Recommendations for other printers that suit my needs would also be appreciated. Price is not as important as print quality to me, although I do not need anything larger than 13 x 19 and I need it to fit on a desk.

Thanks!

Dotyman