I can't add a certain local printer port - did all searches, can't figure it out please help

Details:

I have XP Pro on both computers and am Admin on both
windows networking
on client I have a HP 812C Printer via USB
on host I am trying to print to HP812C
I have enable share on the printer in the client computer
I tried to install local printer on host using add printer - add port
called local port \\clientcomputername\printersharename
I get error: Cannot find network Path
I can share files from host to client but not setup the otherway
client sees host shared files no problem
printer works fine at client computer