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  1. #11
    Service Manager 250+ Posts montana's Avatar
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    hi..this error code related to the ATDC sensor..may you should make ATDC adjustment in the service mode...or if you replaced the developer with incorrect one..this machine working with dv310 type
    i hope this help....happy new year..


  2. #12
    ALIEN OVERLORD 2,500+ Posts fixthecopier's Avatar
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    Quote Originally Posted by Hansoon View Post
    From an end user or an untrained tech in a 3rd world country this would be understandable and forgivable but you're right FixTheCopier, some of our "professional" colleagues...........

    Hans
    You are correct. Same people would call a car repair center and say "My car runs bad, what could it be."

    I May Be Old, But I Saw All The Cool Bands When They Were Cool!

  3. #13
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    Try to set atdc gain under tech rep choice to 120
    Do not clear IC or PC life + will cause 2557
    Set Mode 418 bit 3 to (0)


  4. #14
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    Quote Originally Posted by RAKOTOBE Oliva View Post
    With my Bizhub 250, I got an error code C2557.
    Can you help me to fix this error
    this code means K TCR sensor error (toner carrier ratio), so the imm.unit has reached its end or the toner is not enough , meaning the ratio between toner and carrier or developer in the imm. unit is not in spec . if toner is stil enough then change imm.unit . you can add toner in service mode and see what it does.


  5. #15
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    Could be a lot of things. Are you running after market toner? If you reset the I.U. with out an actual replacment, did you check you toner levels first? Is the toner path clogged? (seen it with after market junk)


  6. #16
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    Re: Error code C2557

    Quote Originally Posted by kenny@kmfs.co.za View Post
    this code means K TCR sensor error (toner carrier ratio), so the imm.unit has reached its end or the toner is not enough , meaning the ratio between toner and carrier or developer in the imm. unit is not in spec . if toner is stil enough then change imm.unit . you can add toner in service mode and see what it does.
    check your solenoid


  7. #17
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    Re: Error code C2557

    check your solenoid
    wow....

    Hans

    " Sent from my Intel i286 using MS-DOS 2.0 "

  8. #18
    Aging Tech 250+ Posts



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    Re: Error code C2557

    Quote Originally Posted by Hansoon View Post
    wow....

    Hans
    So what if it's almost three years late. It is some good advice. Everyone should check their solenoids once in a while. lol


  9. #19
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    Re: Error code C2557

    .

    *Going speedy to have an urgent look at his solenoid*


    Hans

    " Sent from my Intel i286 using MS-DOS 2.0 "

  10. #20
    Technician rahadyan himura's Avatar
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    Re: Error code C2557

    actually, error code c2557 is ATDC sensor failure, this error code appear coz your drum, developer lifespan is over, over toner, or electrical parts is damage.
    if your drum or developer lifespan not yet over, just do adjustment to ATDC gain,
    press utility/counter, check detail, stop-0-0-stop-0-1 and enter the password (default code is 00000000)
    after u go to tech rep mode, select tech.rep.choice, printer, ATDC gain.
    adjust the value to higher than original. don't forget check the level history, ATDC current must around 5%to 6%.
    in my case, i got some error code c2557 in bh350, but i change everything is still same problem. error code c2557 with ATDC current to 10%!
    the problem solve i change 2 solenoid drive hopper unit, solenoid (9J06M20000), solenoid (4040M20000) and i can solve my problem.
    i hope this can help u.. ^^,


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