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cscce
11-14-2018, 09:21 PM
I have a customer whose Lexmark c780 has intermittent mis-registraion. (See attached sample.) What is the most likely cause? I haven't found anything in the service manual so far.

Many thanks!

blackcat4866
11-14-2018, 11:25 PM
Have you done a color calibration/registration? How many clicks are on the primary transfer belt?

cscce
11-15-2018, 08:23 PM
Have you done a color calibration/registration? How many clicks are on the primary transfer belt?

The ITU has never been replaced. The page count on it is 109,000. Also, user says the problem has gradually become worse so it looks like the ITU is the problem.

Thanks,
cscce

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