Question about Canon imageRUNNER 400S Copier
open the front cover and clean the duplex rollers with alcohol and dry it.
Also, if you have stand for these copier, on the left side of the stand there is opening on top of stand where the copy is going when it copy second side, check for any opsticles in there.
Hope that helped
Posted on Aug 09, 2010
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Posted on Jan 02, 2017
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