Question: I have a Cannon MP560 that kept having communications errors. One of the suggestions I read was to remove the printer from the print & scan menu and re-add it. Once I did that the scanner disappeared as well and I cannot get OSX 10.7 to recognize this device as a scanner again. 

* Does anybody know how I can get OSX to recognize this device as a scanner again?

Here are some screenshots of my print & scan screen and my add printer dialogue. Bonjour does not show me any information about this device either. 

![enter image description here](https://i.stack.imgur.com/fX8Ad.png)

![enter image description here](https://i.stack.imgur.com/Jgfpy.png)

Answer: 
Have you tried deleting the .plists associated with the printer? These are all in my `~/Library/Preferences` list. I would move them to the desktop (just in case you want to move them back), restart your Mac, and try adding the printer again.
New Scanning Instructions:

Canon MP560 to Mac Computer with OS X Yosemite

(Use USB cable to port)

Go to system Preference

Printer/Scanner Icon

Hit open scanner

Hit scan button and open MP Navigator

Default printer last printer used (MP560)
(Use USB cable to port and indicates on line)

Hit scan

Do selection as needed/required

I set the scan to go desktop to see immediately