If you have or can get an ethernet card for the Classic or a localtalk - ethernet adapter then you have a chance.
Hawking Technologies sells a hardware printer server that includes AppleTalk and 3 parallel ports for support of up to 3 printers. It costs $130 which is very cheap for a 3 port print server ( www.hawkingtech.com
This will also allow the printer to be shared with any other printers on the network. This is also assuming that the HP driver allows network connections and not just USB.
[This message has been edited by drewman (edited 12-31-2000).]