Summary: I bought this product just 18 months ago, and it has become completely inoperable on two separate occasions. First, there was an irremediable paper jam for which I had to send the product back to Canon. Then they sent me a replacement printer that broke down for no apparent reason - just decided to freeze one day. Also beware that this product has a strict one-year warranty that does not extend to replacement parts Canon sends.
Summary: I own an MF5730 version of this printer and couldn't expect more from a printer at this price. That's why I ordered the MF5770 from Amazon. The shipping was quick and the box arrived in good condition. Unfortunately, after investing an hour of time putting it together and loading software, the first print came out "crooked." I tried making a copy and it also came out crooked. I read the manual to troubleshoot with no success.
Summary: I returned the machine immediately when I discovered that the powerful lamp (probably 650 Watts) used to scan documents was going to be on ALL THE TIME, instead of lighting up only when needed (as, for example, with the Brother All-in-One I have been using). The so-called energy-saving switch only doused the tiny console lights. Since it was going to be my fax machine it would have been on 24 hours a day.