Question about Konica Minolta bizhub 250 All-In-One Laser Printer

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Our bizhub-250 receives a C2557, need help with service mode

Yesterday I changed the drum and developer unit of the machine. The very last step involved performing an ATDC adjustment. For instructions I was refered to another manual which said I needed to go into Tech. Rep. Mode ((I believe that this may be the same as the service mode that people are refering to when discussing a C2557). For that I was refered to the service manual, which wasn't available anywhere. I decided to go right ahead and test the printer anyway, at which point I received a malfunctions-error C2557 and realized my error. If anyone knows where I can find a copy of the service manual or can tell me how to go into Tech. Rep. Mode or service mode I would be more than appreciative.

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  • DMenscha Jan 27, 2009

    My machine says

    TEL
    FAX
    C-2557




  • bengumay Feb 04, 2009

    atdc c2557 how to reset this problem, pls help

  • Anonymous Mar 28, 2014

    tech rep mode

×

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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

Posted on Sep 03, 2009

  • ozzie espinoza
    ozzie espinoza May 15, 2014

    This only works for the older models new models completeley different.

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I have the same problem with error code c 037 ( Konika Minolta Bizhaub 350 )

Posted on May 19, 2011

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You need to replace the drum and developer, then reset the drum and developer counters and f-8 the developer this is all done in the tech rep mode

Posted on Aug 26, 2009

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  • ejcm40 Aug 26, 2009

    1. press the Utlility/Counter key

    2. touch [check Details]

    3. press the following keys in this order

    stop-0-0-stop-0-1

    4. enter the eight-digit code

    00000000 then touch end

    this puts you in the tech rep mode screen

  • John La Jul 19, 2012

    Is this the same method to enter the tech mode for the NEC IT2530D?

  • haseeb iqbal Apr 29, 2013

    toner problem 2557 error tcr ad

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I have the same problem with error code c-2557

Posted on Apr 06, 2010

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I have the same problem with error code c-2557 in Konica Minolta C353 laser color printer/copier. Please provide the solution. I have switched it off 3-4 times and on after 10 mins but still have the same problems.

Posted on Jan 06, 2010

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C2557 is ATDC sensor failture, first check the level history in service mode,
press utility/counter, stop-0-0-stop-0-1, press the password, "00000000"
and the press level history, normally, atdc sensor have around 5.0%-7.0%,
if less or more than the presentase, the machine will appear code C2557.
1. change the adtc sensor gain.
in the service mode, press tech.rep.choice-printer-atdc sensor gain, set the value around 0-255, with the persentase 5.0%-7.0%
2. if the panel warning please exchange pc drum, print dirty, blur or dirty better ur change the drum, developer and transfer roller one go.
before u change the drum, developer and transfer roller, make sure u reset the counter,
in service mode, press counter-special parts counter, select the pc life and the press key c. select maintenance counter and reset also.
after u change the spare parts, do f8 quickly, in service mode
press function-F8, the machine will automaticly run and adjust atdc sensor.
if all already finish, off the machine and wait 10 second and the on again.

i hope this can help u solve ur problem,
regards, ^^,

Posted on Oct 11, 2012

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Posted on Jan 02, 2017

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