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ERROR MESSAGE C-2557 CAN I FIX IT?? - Office Equipment & Supplies

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Yes, open and close front door. And or power off both power switches. Wait ten seconds then turn it on again. The code is for the black image unit lack of toner. Check the image unit, and ensure toner is installed. Model type? would also be welcome

Posted on Jul 31, 2009


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Posted on Jan 02, 2017


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I have an error code C-2557 on this Biz 350 with the finisher, without the the finisher m/c works fine

C-2557 ATDC sensor malfunction.Enter in the service mode press following keys:
Utility-Metercount-Details-STOP-0-0-Stop-0-1-press 00000000 press Enter in Tech. mode select Printer than select ATDC gain and read the ATDC current value.If the value is situate 150-160 increase the value to 164-174 (to change the value press C and entering the new value)return in the copy mode turn OFF the copier open the rigy door than close and turn ON the copier and make a few copies.If the error persist discrease the ATDC value and make some copies.If the code persist change the developer .Before change the developer reset the special parts counter I/U counter,developer.After change the developer perform F8 and verify the new value to ATDC gain and notice.

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Error code 2557

C-2557 Abnormally low toner density detected black TCR sensor.The TC ratio in the developing machine wich is determined by toner replenishing amount control mechanism is 5% or less for a given number of times consecutively.
Relevant electrical parts:imaging unit K,toner supply motor C/K ,mechanical control board or MFP control board.
Perform image troubleshooting procedure if image density is low.
Clean the TCR sensor window on the underside of the imaging unit if dirty.
Check the toner supply motor operation.
Remove and reinstall imaging unit K. or change the imaging unit.
Last solution turn ON the copier open the front door ,enter in service mode,select sistem1 or 2 ,select IuU Unit,select Unit K ,select new release press start and after job is completed close the front door,turn OFF the power,wait 2 minutes and turn ON.

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How to solve error c2551 in Konica bizhub c220

C 2557,C 2558 Black TCR sensor.
C 2551,C2552,C 2559 Cyan TCR sensor.Check de consumabile life,if you have possibility change the Black and Cyan Imaging unit.Enter in the service mode Press Utility key - Metercount- Details- Stop 00 Stop 01 select Sistem 1 or Sistem 2and read the messages.For reset turn OFF the copier,press and hold the Utility key turn ON the copier and then the display appaire Trouble reset release the Utility key and touch the reset,turn OFF the copier wait 2 minutes and turn ON.

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Error 2557

ATDC Gain abnormality.Automatic toner density control error.Go to tech rep mode and simply increase the sensor gain and restart the machine.

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Error code c25507

error code 2557 is ATDC Sensor Failure, low density

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I have a C-2557 code on a bizhub C450

interesting... this information is covered in detail in this post

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