I have a customer with 5 of these. all have thrown this code and 31.03.45 at some point. usually when trying 2 sided copy. so far fix for 3 of these has been replace adf. No specific reason why failure happens and HP has not owned up to what the failure is. along the way ive tried firmware, scb replacement, and scanner replacement. But adf replacement has been where most of the problem gets solved. Any tech out there ran across this problem?
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