Konica-Minolta bizhub C450

Error Code:

Code: C2558
Description: Abnormally high toner density detected Black TCR Sensor
• T/C 12 % or more is detected ten consecutive times in the Developing Unit as validated through the toner replenishing amount determination control.
Remedy: 1 Correct the TCR connection on the underside of the Imaging Unit if faulty. 2 Clean or correct each contact of the Imaging Unit if faulty. 3 Change Imaging Unit. 4 Change PWB-MC. 5 Change PWB-MFPC.

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