The
Designjet 5000 series was a landmark printer in it's time; it should be on the Mt. Rushmore of large-format printers.
The modern evolution of that heritage would be the HP Latex 300 series. Both are water-based inks, and have thermal printheads that are user-replaceable, but there are significant differences in terms of compatible print media. The Latex printers are designed to be outdoor durable machines, and thus need to print on media such as uncoated PVC-based vinyl and banner, as well as polyester films, various textiles, papers, and a range of exotic medias for specialty applications.