why I can't print color ps file

[Anonymous]

> licher wrote:
> > I use cups to print ps file to my HP5500 color lasterjet printer. but, I find the print output is gray , why? I use the pstops -> pstoraster->rastertohp filter system.
>
> That particular driver is B&W only.  You want to use the PPD file
> that came on the driver CD with your printer instead...
>
> --
> ______________________________________________________________________
> Michael Sweet, Easy Software Products           mike at easysw dot com
> Internet Printing and Publishing Software        http://www.easysw.com

I have tried the PPD file that came on the driver CD, and the output aslo is grayscale, It seems that cups native filter only supports B&W printing??
Thanks for help