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Konica-Minolta bizhub C450

  • Code: C2556
  • Description: Abnormally high toner density detected Yellow TCR Sensor
    • T/C 15.5 % or more is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
  • Remedy: 1 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 2 Clean the TCR Sensor LED if dirty. 3 Correct the contact and/or WIRING of the TCR Sensor if faulty. 4 Change TCR Sensor C/M/Y. 5 Change Imaging Unit. 6 Change PWB-MC. 7 Change PWB-MFPC.
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Service Mode, Troubleshooting
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