I bought the 3400c in Sept 2000 and ran it on Win98. It gave a lot of error messages even though the software says it was loaded correctly. I changed to Win ME and found it was not compatable. I waited 3 months for the update from HP and finally got it. I loaded the new ME driver and never could get it to work. I went to help on line and after 3 back and forth messages the HP folks told me to contact the manufacturer - I thought they were the manufacturer. Needless to say not happy with product or support. I gave it away