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richg79
09-03-2008, 04:29 PM
Hi all i have a c450 that keeps giving out c3751 error codes i have changed the I/O board the power control board the fuser 3 times put a power surge protector in but no matter what i do i keeps coming back any ideas would be gratefully received

thanks in advance

Rich

laserman06
09-04-2008, 12:19 AM
Hi all i have a c450 that keeps giving out c3751 error codes i have changed the I/O board the power control board the fuser 3 times put a power surge protector in but no matter what i do i keeps coming back any ideas would be gratefully received

thanks in advance

Rich

If you have the access to a line monitor put it on for a few days. See what the voltages are doing.

Also, have you tried to reflash the firmware. I have seen firmware do many strange things.

You said that you changed the power control board, do you mean the Power Supply - PU1 (p/n 4037621102 - bizhub C351/C450/C450P).

Rob

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