Question about Canon NP 6551 Black and White Copier

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Error code: E002 at canon NP6551

We bought lately a used copier Canon NP6551.
But after a few copies he came up with E002.
We let a mechanic come by and he fixed it .
But 2 weeks later same problem. The mechanic came by again , he replaced a small divice with some electick wire on it. he said something from heater.
But 1 week later again same problem.
Please help us, what the real problem could be.
Many thanks , and best regards.

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I cannot find the problem

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Techbill is on the right track, but I would say just breaking the contacts on the the DC control may help- that is a good fix for older copiers. How may copies are on the copier? Have you had the copier moved resently? Or have you had some eletric work doe and is the copier on the same power circut with another device (AC unit) ? Also, can the code be reset in service mode, with no new parts put in? I have had the same problem on this mode and other models.... You said the tech replaced something with wires on it... Was it the thirmister? This model has two of them one towards the back of the UFR and one in the middle.. You also, may have a bad front door switch ( AC).... Asks a few questions.....

Posted on Jun 04, 2008

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If the fuser assy has been repaired and you keep experiancing an E002 the problem is most likely a faulty DC Controller (main board) The DC Controller handles the voltage applied to the fuser assy and gives the error code E002 or E003. Have your tech clean & reseat connectors on the DC Controller before just replacing it. I have found cleaning the connectors & reseating them solves the problem 75% of the time.

Posted on Jun 02, 2008

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