My bizhub 250 shows c2557 sfter running f8 - Office Equipment & Supplies

Hi
I found your error code and suggested remedies here:
Error Codes Konica Minolta bizhub 250 Code C2557
This site is very useful as by changing the drop down menus along the top of the page you can view other errors for your machine and for other models and makes. You can also use the link to get a pdf format Service Manual for your machine.
Hope this is helpful, if so would you please register that with Fixya
Cheers

Error c2557 means ATDC sensor abnormality.Most probably the developer is very low or weak in such condition.Check the developer.You can also increase ATDC GAIN in technical representative mode in order to get rid of this problem.
Also check the PC life/consumables life in "Counter"---"Special Parts life counter".Check if the life of PC Drum is 100% or near to 100 ten clear its value by pressing "C" button.Clear all counters to zero value.Now restart the machine and run F8.It will run smoothly.If you are replacing new developer then there would be no problem with it.

Does the control panel say replace PC drum? You need to have the Drum/Developer and the Developing unit replaced. Make sure that the counters are cleared before removing the old unit and make sure F8 is run after the new image unit is installed

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

Error code c2557 means "Auto Toner Density Control sensor abnormality" (ATDC)

ADTC sensor failure

Reset it, start it with the right door open, go to service mode, clear the counters for drum and developer and go to functions menu. Close the right door and start immediately the F8 function. It should work.

tha minolta di3510 developer unit looks the same as the unit for the konica minolta bizhub 350 but the toner sensor in the minolta unit uses a different voltage range for the toner sensor and it will throw this code make sure you have the correct unit for this machine also you can try this
go back into tech rep mode and change these settings:
select tech rep choice mode
select printer tab
select atdc sensor gain
set the value to about 165
then back all the way out to the ready screen and power the machine off then back on and replenish toner in the user management screen.

hi,

open and close front door cover to reset error.

If it persists you have to execute (TCR Toner SUPPLY)

Tell me if you need to execute it.

Bye.

Utility/Counter -> Details -> [STOP][0][0][STOP][0][1]
Go to counter and clear the life of the developer and drums and then run F8 from functions.

Reset your Toners and Imaging units for Minolta Bizhub and CF series.
http://www.chipreset.eu

I can even reach the "service mode".
The screen shows the error (c2557) and I can not access to anyother function.