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  1. #1
    Field Supervisor 500+ Posts smiley's Avatar
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    canon adv c5235 error 20-149

    good day guys. this machine has needed to replace its black drum unit because of vertical black lines and working fine. after i change the drum it give me error 20-149 even i have to turn back the old drum it give this error.any idea guys what should i need to check? thanks
    there is no glory without sacrifice

  2. #2
    Senior Tech 250+ Posts JPiek's Avatar
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    Smile Re: canon adv c5235 error 20-149

    e020-149 is not in the manual... Sure it's not e020-0491 and you mistyped ?

    E020 0491 05 Error in Bk Developing Assembly

    Error in signal upper limit with ATR sampling detected
    value

    1. Check toner leak from the Toner Buffer Unit.
    2. Check toner level in the Toner Container.
    3. Replace the Developing Assembly.
    4. Check short-circuit of the harness with the Toner Buffer
    Supply Sensor (PS4).

    But i'd start with cleaning up any spilled toner and cleaning sensors..
    Johan

  3. #3
    Field Supervisor 500+ Posts smiley's Avatar
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    Re: canon adv c5235 error 20-149

    thank you Jpiek. sorry i mistype its e020-0149. i try to clean it but error doesn't dis appear. i replace the black developing unit and the error gone. can it be just the atr sensor or the developer? thanks again.
    there is no glory without sacrifice

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