Canon MP640 giving inner cover is open error

highstream

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My steady eight year old Canon MP640 just started giving an "Inner cover is open" error. Thing is that it isn't open, or at least not apparently so, and thus far opening and closing the covers firmly and pressing OK hasn't solved it. Nor has powering down and unplugging for a few minutes. Since Canon no longer gives free support for this one, I'll ask here if anyone has an idea what to do. Thanks,
 
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highstream

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Canon MP640
While looking for a reset button -- there doesn't appear to be one -- I turned the unit off. Upon restarting the error message had disappeared and a scan went through ok. Not sure what to make of it, but I'll take it...
 

stratman

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