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E40 error message on Canon DR5020 scanner

Scanner won't cycle up when turned on. Dad took it apart and now it keeps giving the message. Have to turn it on/off 100 times before it will be "on" to work

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Hi,
The error code E40 is caused by communication failure between CPUs- " Can't communicate with CPU on on Pick-up control CPU(80_SUB)".
The solution is" Check the connection and replace the PCB." This solution also applies to error codes: E41, E42 and E44.
Hope this information is helpful.
regards, TechSatya

Posted on Jul 31, 2008

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