Summary: Cheap to buy, expensive to run, and ultimately impossible to get working. It started well enough, until the low-capacity test cartridges ran out. Since then, it says I've printed 5300 pages in the 4 years I've had it; and I'd estimate about half of those are misprinted repeats whilst trying to get it to perform the most basic job of printing a standard document. Endless false jams, toner "run out" complaints, and massively overpriced consumables.
Summary: I was really disappointed with this purchase. I know laser printers were more cost effective than inkjet, and after speaking with a canon representative who told me this would fit my purpose, I went ahead. But the printing quality was awful for graphics. There were lines through the images - noticeable most when printing batches. The first would look OK, but the 5th or 6th copy would start to show lines horizontally across the page, and by the 10th copy they were awful.
Summary: I agree with the previous reviewer about the difficulty in getting it to print- I have had exactly the same problems (machine says there's no paper when there is, says there's a blockage when there isn't, the need to switch off and on again to get it to (sometimes) work). I don't expect the cheapest consumables in the world - I'd settle for a printer that works, occasionally, without my physical involvement, other than clicking a print icon.
Summary: The Canon LBP5050N is quite simply the worst printer I have ever owned or used, and there have been a lot. If I could charge Canon at my charge-out rate for all the time I have spent persuading it to work I wouldn't need to work for the customers any more. It continually refuses to print, claiming to be either out of paper (which it isn't) or paper-jammed (which it isn't either) or that the case is open (again it isn't).
Summary: This should be a good printer, but if you're thinking of using it on a network with a Mac, forget it. 1. There are no Mac instructions in the manual 2. It doesn't come with a Mac driver 3. You can download the Mac driver from the Canon website but ... 4. You apparently need something called a Netspot device installer too and ... 5. That isn't yet available for Mac OSX 10.6.7 Apple are due to release OSX 10.8 (OSX Lion) next month (July '11).