Summary: We bought this to replace an old LaserJet 4200. Occasionally we need to print a few thousand envelopes. We bought the optional envelope feeder and our first job was printing envelopes at a rate of about 6 per minute. Our old 4200 can do close to 20. I spent plenty of time with HP support and they said that's how fast it prints envelopes. I think that should be clear in the website documentation.
Summary: Very fast printing. Shipping was very fast. Inexperienced buyer here mistakenly assumed two separate paper trays were inluded but they're not. Purchased a separate tray and it works great. Had to download newest drivers for the printer to recognize the 3rd tray. It's not the quietest printer but so far we're very satisfied.
Summary: We replaced two HP 4350TN's with the M601DN's and we are extremely pleased with their performance. They are fast and the best part is the duplexing ability! We print Material Safety Data Sheets for each of our orders and the ability to print these documents in duplex mode will save us a ton of paper! Reasonably prices enterprise level printer... great upgrade choice!
Summary: For the most part we are sorta kinda happy with this printer. Sure, it is complicated, sure nothing is easy with it - but we've learned to live with it. What we HATE about this machine is that it sucks toner and there is ZERO option to buy a high capacity toner cartridge. BUY THE NEXT MODEL UP. $100 more - and you'll save that money the first time that you have to buy toner. We were steered wrong with this. But now stuck and we are learning to live with it.
Summary: I was very reluctant to give up my HP4200 Series LaserJet Printer - what a workhorse, but we felt it was time for an upgrade at my office and I chose this printer. It runs much faster in printouts, but when we attempted to create several labels for a large mailing, the ink was spotty and smudged on almost every single label. I had to re-print using our Canon Copier.
Summary: I was looking for a printer similar to the 4015 but maybe not on the capacity level per month. I made a huge mistake in purchasing the M601n. You may pay a little more for the 4015 but it pays for itself in one toner cartridge. This machine eats toner. You will not get the 10,000 pages out of a cartridge and they are the same price as the 4015 cartridges for which I see over 24,000 pages per.