I don't believe that any HP printers come stock with extra storage, and maybe the same is true of the OKI printers that you have been using. Certainly they are available as an accessory from HP and other suppliers as well.
Personally, I would probably just downlad a soft font, but you may be "locked in" as it were with your application. You should maybe look into installing the Webjet Admin software to facilitate managing you printers.
Assuming you buy a FLASH DIMM or storage drive of some kind, you would have to get its device number to be the same as in your PJL file. I don't know how the device ID is assigned.
Chris H?