Hex and ASCII Keys

Hi

I have the following setup using WPA, so far been working perfectly with a
64 length hex encryption key

HP Procurve 420 Wireless Access Point (running in mixed 802.11b / 802.11g)
Various 3Com wireless cards, some 11b some 11g
All connect fine and are stable within good range of the access point

I have now added an HP Wireless Print Server - JetDirect 380x (supports WPA,
802.11b).

The problem is; the HP Wireless Print Server ONLY seems to accept an ASCII
WPA key (up to 63 characters).

Our key, and ALL other devices, is a Hex key (64 digits in length).

Is it possible to convert the key to ASCII? Will this then work do you
think, for the print server?

Any other suggestions?

Thanks!
TC

-TC-