Excerpt: We had this printer for less then a month and it started printing pink on everything. We did troubleshooting and nothing will fix it. Tried to return it to staples and they no longer carry it so I was given the run around and have to go thru samsung to get this problem figured out.
Summary: This is my second Samsung printer, the first one always worked excellently well but I couldn't get it to work with my new 64 bit computer so I updated with the 680ND. I am pleased with the ease of use and the print quality. The machine appears quite heavy duty, I was able to print on really heavy stock without any problems and it prints on both sides by itself! The print quality is better than I've seen at any price.
Summary: For whatever reason to get two computers to recognize and print from both a windows 7 and windows 8 computer over the network was not as easy as my canon ink jet was to do for the same computers. I still don't even remember what it took, and I'm no stranger to working with computes . Anyway, still looks like a solid unit, but have only printed a few times so far, so in the long term, the jury is still out.