Summary: I bought this in 2007, 3 years ago. Used it fine until recently. Gave me error message, "Download standby/connected." Lots of people getting this message and usually means the unit is trash. People are going with Brother instead. When it works, it is wonderful. However, $600 is too much to pay in Amazon. I got it for $200 at Staples. But skip this unit and try a Brother. A friend has one and its worked for almost 10 years with no problems.
Summary: I have only had this unit for 1.5 years. Intermittently, there has been a strange error message (Download Connected/Download Standby), which Canon support says indicates a problem inside the printer that needs to be serviced. I have managed to get the problem fixed to date by unplugging and replugging the power cord, but it is unpredictable as to when it will be fixed. Could be minutes, could be hours.
Summary: Being a frequent Amazon shopper, I've learned to read the reviews before buying anything. Read between the lines too. So when this printer came up as a Lightning Deal for $175, I put one in my cart and did my research before checking out. What a deal! The toner cartridge alone is about $80, so I'm getting a network/USB printer, fax and scanner for <$100. Could life be any better? Scanning has no network support. No problem... USB connection requires Windows.
Summary: we got this for a small office and were excited to have it on the network for our scanning and faxing needs, not until the package was opened and the users manual was downloaded did we find out that the machine does not support network scanning or faxing. now it is just a copier. that part works as it should, but it'disappointing that the rest does not suit our needs.
Summary: Though highly reviewed for its attributes, this product comes out of the box with built-in ulcers for the hapless owner. The documentation seems to have been translated from japanese, with clumsy syntax and word usage. The setup CD offers the choice of network or USB, not allowing for the use of both in this device with a USB-only scanner.