Konica bizhub 250 error c255c - Konica Minolta Bizhub c203 Copier

if you have a C2557 after changing F8 developer then your extra toner is too strong. Check your clutch adding toner, replace the small foam with an equivalent thickness, increase your toner and repeat a gain F8.

what is the full code?

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Details Subject:
C-255A (C255A), C-255B (C255B), C-2559 (C2559) or C-255C (C255C) at power up.
Description:
C-255x code at power up.
Solution:
CAUSE: The K (black) IU (C-255C) has failed. The M (Magenta) IU (C-255A), Y (Yellow) IU (C-255B) or C (Cyan) IU (C-2559) is not fully seated or has failed.

SOLUTION: Replace the K (black) IU (Item #A0DE02F for the bizhub C203/C253 and Item #A0DE03F for the bizhub C353). Reseat the color IU and if the problem persists, replace it. Item # Color IU Model
A0DE0CF Magenta bizhub C203/C253
A0DE0DF Magenta bizhub C353
A0DE06F Yellow bizhub C203/C253
A0DE07F Yellow bizhub C353
A0DE0HF Cyan bizhub C203/C253
A0DE0JF Cyan bizhub C353
SPECIAL NOTE: Solution contribution by Tom Kelly, Workgroup/SSD

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None Specified Details Subject:
After toner installation, C255x code within a few hundred prints.

Description:
C2551, C2553, C2555 or C2557 codes.
Solution:
CAUSE: Toner is not supplied due to abnormal position of coupling.

Normal condition The coupling is blocked by bracket

Black Imaging Unit Failure.
remove-shake-and reinstall black IU
Replace IU-K, if not then PRCB faulty.

The code is an error code, it means your copier bizhub 250 is having some problem in the LCT.large capacity tray the last tray.its not opening or may be malfunctioned.

ADTC sensor failure

to remove code "COF32" from your machine, simply change the developer with the new one. code will remove.
wish you best of luck............

Check and make sure there are no jams by the fuser ie: bits of paper in the paper path.

i will like to know how to reset the page count and service my konica myself, also my konica bizhub 250 is showing C-0204

Try shutting dow the unit totally, even try unplugging it from the wall for 15 minutes.
If the error code does not go away, then a technician is needed