Summary: Just another piece of junk from HP. Stopped working all together after one year. I cant scan nor print. After FIVE HOURS trying to get this thing to work, I give up. Tried uninstalling and reinstalling, no help. HP has a few links to customer support...they go to pages that do not exist.
Excerpt: I had to purchase a LaserJet Printer for certain business functions and, based on the very specific specs., all of the printers I came across were extremely expensive. I ended up finding this model which does everything I need it to and it was MUCH more affordable.
Pros: Good Value, Easy to Use, Easy to Set Up, Performance
Excerpt: We are a small office. We bought this printer a few months back....it seemed like it would be perfect, but after about a month it stopped printing envelopes. It will try to pull them but cannot. I have to fight and fight and fight with it to halfway shove the envelope in so it is able to pull it.
Excerpt: We are a small office and have only had this printer a few years. It constantly jams and is difficult to reset Works for single pages but jams at any print request of 10+ pages. Changing brand of copy paper, fluffing paper -- doesn't matter. Still jams.
Excerpt: Had to return as it would not print with the size of paper we use for invoicing, very frustrating, took HP support two hours and two printer tries before isolating what was the problem. Set up menu was cumbersome and insufficient as well.
Excerpt: After using another HP Printer for more than 13 years (by the way ... that one is STILL working great) ... we decided to upgrade to the Pro 400 due to ethernet/network connectivity and speed. WOW! This thing is super-fast & is saving us tons of time.
Excerpt: Sadly, I cannot recommend this printer due to HP's lack of support for Mac users running Mavericks 10.9.2. Why? Simple. When the printer goes "to sleep" in the standby mode, it does not like to "wake up" from its nap.
Pros: prints very fast, nice profile small footprint, prints quality documents
Cons: issues with mavericks, loses connectivty when running mac 0s 10.9.2
Summary: On the good side, the printer arrived almost next day. On the negative side, as another reviewer mentioned, HP confuses purchasers in regard to this printer being black and white. The fact that this was not a color printer was not evident in the HP online description.