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Laserbeam
06-25-2012, 10:29 PM
Hi all,

a bizhub C250 shows sometimes the messages: "The IU-unit is not inserted correctly" and the error-code C2653 or C2654 appears.
The message also appear after replacing the imaging unit with an new one. I checked the IU-contact boards and cleaned it with alcohol, but without success. I think, the problem is not the IU-contact board or the IU-chip. It must be something else.

Thank you for your reply!

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