Hi, I went to http://h20015.www2.hp.com/hub_search/product.jhtml?lc=en&pagetype=compaqij90217404&submit.y=2&submit.x=6&cc=us to download the driver software. It did not mention anything about USB/LPT. Mine is connected from LPT. I did not get any manual or user guide from there. I bought it before merger of HP and Compaq (during the year of 1999). Thank you and best regards Sukhen The NOSPIN Group is now offering Free PC Tech support at our newest website: http://freepctech.com