Summary: I have had a 2550L for several years and it has been fabulous, the best printer I ever purchased. However, HP in their latest printer updates, made it so this product will NOT work. As of 11/1/2012 HP has stated...they are aware of this problem and will be releasing a solution "in the near future" As of today HP has not done it. Check HP website in the forum for updates.
Cons: Burns through very expensive toner cartridges at an incredible rate. The browser-based Toolbox control panel has now stopped functioning and I have been unable to revive it by doing a clean uninstall/reinstall. Contacted HP support and their only sugges
Pros: Like most HP products, the 2550L is attractive, well built, and well supported by HP.
Cons: The price per page is about 16 times that of a Lexmark C544N (30,000 pages per toner vs. 4,000), which can be bought online for as little as $275, as of this writing. The Lexmark offers 1200 dpi, versus 600 dpi for the HP, and 25 ppm!
Cons: Noisy, all the time performs unprovoked exercises without warning. All the time reports paper jams. All the time flashes red light. When you press green, it starts printing. Paper tray always puts paper askew. EVERY page a nuisance.
Summary: This machine is so loud you could hear it from space. And it's slow. Can't say anything good about it. Please don't waste your money. I won't buy a HP printer again. Everyone I've had has been completely useless.
Summary: What a piece of you-know-what. I really wish I would have done my research before buying this printer. The consumables are VERY expensive, and like the others have said - it's clunky and noisy. Anyone giving this printer more than two stars has to be out of their mind. What a waste of money!
Summary: Has great output, but after 14 months (just out of warranty) and only 5500 color pages printed (and over $350 in consummables), this thing suddenly has broken -- the carousel is apparently a weak point, a common breakage, and it costs as much to fix as to buy a new one. Appalling. This thing replaced an old Apple laser printer that worked like a tank without any problems whatsoever for over a decade. This is incompetent design at its worst.
Summary: I'm wishing I had read a few of these reviews in advance of our purchase of the HP 2550 nine months ago. I'll simply reiterate what several reviews have already mentioned - reasonably priced machine ($499), BUT, my small organization doesn't do a huge amount of printing, and we now have to replace the imaging drum at $399 (Can).