Bizhub C253: Error Code C-4551 will not clear. Any ideas?

https://printcopy.info/?mod=erc&brand=Konica-Minolta&model=bizhub+C253&code=C2152

You take a picture of the device's screen.

SIR/MAM
TROUBLE RESET
FIRST, If this code comes back. Have a technician look at it DO NOT CONTINUE TO RESET the code!!!! AS this is for the Hot Part called the FUSER. It can catch on fire! And that will ruin a perfectly good day!!!!
1. Turn OFF the main power switch.
2. Turn main power switch ON while pressing the Utility/Counter key.
3. Touch [Trouble Reset].
4. Check to make sure that [OK] is displayed and the it has been reset.
5. After turning off the main power switch, turn it on again more than 10 seconds after and check if the machine starts correctly.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Polygon Motor for the Black Print head LASER is bad, the motor is internal to the print head get a new print head for the black, requires tech to install, clear code bye open closing front door.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

See the link below: looks like a cooling fan error code and the fan needs repalcement. You got a GOOD REP oh yeah...
http://www.copytechnet.com/forums/konica-minolta/27391-bizhub-c253-error-c-5370-a.html

From another site

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

remove all of the image units, shake each one so as to have the developer in each unit be spread out along the entire unit not at one end, after doing that to each one install them properly. open close front door to clear code if it come back if these image units are third party get real Konicaminolta units and get a tech out

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

check toner cartridge is there any one dosent have ink

C 2554 Abnormally high toner density detected Magenta TCR sensor.
Clean the TCR sensor window on the underside of the imaging unit if dirty,reinstall imaging unit or change imaging unit.

sorry, cannot find that error code in SM. Are u sure is it correct code?