Here is another site I googled up.
HP Inkjet Linux Driver 1.3.1 releasehttp://sourceforge.net/forum/forum.php?forum_id=250494
The Hewlett-Packard Co. Linux Inkjet Driver Project is a add-on to the
GNU Ghostscript application. This driver is based on the Hewlett
Packard Appliance APDK for deskjet printers. This HP Inkjet Linux
Driver (HPIJS) release includes support for custom paper sizes, and a
number of bug fixes. The complete list of changes in this release
include: 1. Added data compression to DJ3320. 2. Changed the default
black pen vertical alignment value for the DJ3320. 3. Added support for
custom paper size. 4. Removed 3425-COVER paper size, this is now a
custom paper size. 5. Added Printable Area documentation. 6. Fixed a
Officejet hang problem (ie: Officejet 500/600/700 and PSC 300). The
Officejet would hang after printing a job. See hpinkjet.sourceforge.net
and the hpijs_readme.html file for more information.