There is a 712C driver on the winXP CD.
Trevor Morris
Data Storage Solutions
Instructions from HP.COM
Click Start, then Control Panel.
Click Printers and Other Hardware, and then click Printers and Faxes.
In Printer Tasks, click Add a printer.
Click Next.
Select Local, then remove the check mark from Automatically detect and
install my Plug and Play printer.
Click Next.
Select Port
Parallel connection is usually LPT1
USB connection is usually USB001
Click Next.
Select HP from the Manufacturer list.
Select the printer model from the printer list, and then click Next.
Select Yes if this printer is the default printer, or select No if it is
not.
Click Next to continue.
Select No to skip the test page, and then click Next.
Click Finish to complete the installation.
NOTE: If prompted for a Windows disk in Step 12, do not use the disk that
came with the printer, use the Windows XP disk or the recovery disk that
came with the computer.
If prompted for a Windows disk, insert the appropriate Windows or PC
Recovery disk (not the disk that came with the printer) and follow the
instructions on the screen. Once the driver has been installed, it will be
listed in the Printers window (Start, then Printers and Faxes).