Hello...
I have problem with my TA3550ci .Printer has an error c2840. This error will be displayed randomly. Two days printer works correctly, and then the error C2840, which persist even after switching off and on the printer. I tried to replace trcm engine, transfer belt, engine PWB, and I updated the new firmware but the error persist c2840 . Thank you for any advice

I have problem with my TA3550ci .Printer has an error c2840. This error will be displayed randomly. Two days printer works correctly, and then the error C2840, which persist even after switching off and on the printer. I tried to replace trcm engine, transfer belt, engine PWB, and I updated the new firmware but the error persist c2840 . Thank you for any advice

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