Konica-Minolta bizhub C250

Error Code:

Code: C2553
Description: Abnormally low toner density detected Magenta TCR Sensor
• TC ratio in the developing machine, which is determined by Toner replenishing amount control mechanism, is 5 % or less for a given number of times consecutively.
Remedy: 1 Perform image troubleshooting procedure if image density is low. 2 Clean the TCR Sensor window on the underside of the Imaging Unit if dirty 3 M6, M7 operation check PWB-M CNDM2-10 to 13 (M6) PWB-M CNDM3-10 to 13 (M7) C-20 C-21. 4 Reinstall Imaging Unit. 5 Change Imaging Unit. 6 Change PWB-M. 7 Change PWB-MFP.

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