Question about Canon imageRUNNER 5000 Copier
Error e000121-000 what is the problem?
Posted by Anonymous on
The controller cooling fan is faulty. Fan Motor 4 ( FM4) Or worst case the DC controller board. Try the fan. Located on the right side rear up close to the top. I believe there is a filter there that could be stopped up. You also could remove the fan motor and drop a couple of drops of oil on the shaft and see if this helps. Good luck! Unplug the copier before you get in there!!
Posted on May 17, 2010
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Posted on Jan 02, 2017
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