Ti riporto quando c'è su linuxprinting (in grassetto relativo al tuo problema):
This printer is a good choice for a cheap laser printer (around 400$), especially when you print a lot of text documents, as letters, documentation, manuals, ... for these documents it is really fast, as advertized by HP. But when using it on complicated graphics (web pages rendered by Konqueror, photo "convert"ed to PostScript with ImageMagick) in PostScript mode, it is very slow. If you use it in PCL mode, it is fast in both text and graphics printing. Therefore we recommend to use this printer with a Ghostscript driver like "pxlmono" or "hpijs".