Summary: This is a fantastic printer. We have used 2 of them for over 2 years. Until firmware ver 1.38 came out. Now it will not allow printing to continue if the head has the slightest clog. It will not even print out the sheet showing if the head is clogged. It just stops and says print head must be replaced ($500 to $600 ea) Tech support just says that the print heads are expendable.
Summary: I've had the IPF 5000 for about 2 years and never been happy with it. First, if you own a mac, it's a real coin toss as to weather the drivers are going to work. When a new Mac OS comes out, it's unbelievable how long Canon takes to update the driver. You almost have to keep a dedicated system/computer that you don't upgrade hooked up to the printer for it to work. When I was finally able to get prints out, the are beautiful.