
This did a great job of getting my old HP LaserJet 4 Plus workhorse back up and running. I found a few tricks to use it with constant success. 1) If you connect it through a hub, it may show up as a USB serial device and not a USB printer. In my case it won't work. More often than not, when plugging the USB cable directly into my MacBook Pro (dual booting MacOS x and Win 7), the connection worked as expected. 2) Do not install drivers from HP or other websites. Let the operating system find the appropriate driver and use it. 3) When I print large documents or graphics, halfway through the page I get multiple pages with one line of ASCII characters per page. Fixed changing the printer's parallel port speed settings from the default "fast" to "slow" and setting Win 7 to not start printing until the entire document has been spooled. After figuring out those few things, I got the printer. connected to my ASUS network printing router and it works very well.