Summary: These printers are used at work. I bought this third one mainly to keep from having huge inventories of different print cartridges. So I paid too much for this guy but it is worth it to keep inventories of inks down. The K550 has been a good reliable model for us. Just beware when purchasing; I didn't fully understand that I was buying this without the print heads (my fault?), and they are expensive. The ink is not cheap either. But I do like the printer!!!
Summary: Seller knows that they are selling an item which does not work. I asked in advance if it had good print heads. I was assured it did. Then told I would have needed to pay big dollars to get a working model. It says "mint" in box. That usually means it actually works and has working heads. The seller knew what he was selling and still claimed it was "mint". I would never do business with this seller again. He is a knowledgeable vendor, not a home user.
Pros: Fast printing, Realistic color matching, Beautiful photo prints, Handles my college work with ease, 500 Sheet feeder, and I RARELY have to refill it! Low TCO is great, I never have to worry about running out of ink in a jam!
Cons: The ink cartridges are too small for my liking, Although I've never ran out of ink in a jam. Lack of "Borderless" 8"x10"' prints