Konica-Minolta bizhub C352

Error Code:

Code: C2551
Description: Abnormally low toner density detected cyan 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 MFPB CNDM2-10 to 13 (M6) MFPB CNDM3-10 to 13 (M7) C-20 C-21. 4 Reinstall imaging unit. 5 Change imaging unit. 6 Change MFPB. 7 Change PRCB.

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