Thanks for all of the information and hard work that you did to come up with your suggestion. Was hoping for a much simpler solution, like a driver that works, but that's obviously never going to happen. I'm done buying HP printers.
I read someplace that the 3150 is a re-branded printer from another manufacturer but I've searched high and low and can't find anything specific. If I could maybe the original manufacturer has a driver.
Thanks again for all of your help.