c7903

[moinabil23]

hallo
I have an error code c7903 on TA250ci machine, I replace the drum unit it gives the same code.

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Paul@justmanuals.com

[MDR24]

Have you tried swapping the drum with another from the machine? If you swap it with the yellow drum and get a C7904 code its the Drum.

The drums are different for a TA250ci than the TA4/500 even though all the connections fit the EEPROMs are different. Are you definetly using the correct drum?