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I have tried all the drivers.  All I get is a window stating Cannot start MP Navigator EX.  Everything works except the scanner.  It just disappeared.  Are there any compatible drivers that actually work for my Windows 8 64bit?
Finally got my Pixma MX 420 into my wireless network with new laptop and Windows 8.  I can't find the scanner functions like it had before on two of my old computers. How do I get the scanner window back?