1. Download the HPDJ1220c from www.hp.com for the appropriate OS your using NT4 or 2000
2. Install the driver to the server using Add Printers, on LPT3, and Have Disk (where you save HP Driver and extracted). Next step will not make sense but youhave to Delete the Icon from Printers that got added. I know does not make sense but you have to delete the Printer to avoid Blue Screen).
3. Download the Win9X driver from the www.hp.com again (this time for client). Extract the file and load the driver in your Win9x client by adding the printer and pointing HaveDisk where the driver resides.
4. The Server's driver name and Client's Driver name should exactly be the same word for word in order to have Citrix Autocreate the printer when you establish a session.
5. Additional articles on Citrix printer can be found on Citrix Knowledgebase.