I am guessing you might have Windows XP installed on your computer which is needing the drivers for the printer ... If that is the case, try this link:
Model MX700 - scanner operates to send image to comuter but will not operate to make copies from...
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Model MX700 - scanner operates to send image to comuter but will not operate to make copies from printer; printing has become very sluggish.
The printing and copying functions of my Pixma MX700 work fine but the scanning function doesn't...
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The printing and copying functions of my Pixma MX700 work fine but the scanning function doesn't work. We recently got a new hard drive. Could that have anything to do with this? Does the printer need to be uninstalled/reinstalled?