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  1. #1
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    Bizhub 421-500 install drum and developer unit

    Hello need help
    I install new drum unit and new developer unit on an Minolta Bizhub 421. I run in service mode TCR Adjustment the copier work fine but after 4 day cylinder was broken. I enter in service mode and i enter in service mode at "part counter" and i noticed the developer and drum is with this "--------------" I attach a pictures to see.What is the correct procedure to setup the drum unit and developer unit to install ???? I run only TCR Adjustment , I need to take another step ????

    Thank You .

    IMG_20171021_091925.jpg

  2. #2
    Certified Konica Expert 2,500+ Posts
    Bizhub 421-500 install drum and developer unit

    Synthohol's Avatar
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    Re: Bizhub 421-500 install drum and developer unit

    drum and developer are supplies not parts, that may be why there is no # listed.

  3. #3
    RTFM!! 5,000+ Posts allan's Avatar
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    Re: Bizhub 421-500 install drum and developer unit

    What kind of damage. post a photo. That machine is working hard if its done 10K+ in 4 days.
    Whatever

  4. #4
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    Re: Bizhub 421-500 install drum and developer unit

    In 10 day the printing volume was 10.500 copies.
    IMG-20171019-WA0003.jpg

    but after i install drum and developer unit i run tcr adjusment , another operation needs to be done ???

  5. #5
    Field Supervisor 500+ Posts Woxner's Avatar
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    Re: Bizhub 421-500 install drum and developer unit

    the drum and dev have counters that need to be reset under parts counter before you do the tcr adjustment.

  6. #6
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    Re: Bizhub 421-500 install drum and developer unit

    Can you tell me what is the correct procedure in service mode after i install the drum unit and developer unit in bizhub???

  7. #7
    Service Manager 5,000+ Posts
    Bizhub 421-500 install drum and developer unit

    copier tech's Avatar
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    Re: Bizhub 421-500 install drum and developer unit

    Quote Originally Posted by shadows View Post
    Can you tell me what is the correct procedure in service mode after i install the drum unit and developer unit in bizhub???
    The correct procedure is listed in the service manual.

    "Service Mode screen"

    Press [Imaging Process Adjustment].

    2.
    "Process screen"

    Press [TCR Adjustment].

    3.
    "TCR Adjustment screen"

    Press the Start key.

    4.
    Check to see if "OK is displayed, and also check the TCR adjustment data value.

    Note

    • The adjustment is completed in about 180 seconds.

    • When there occurs a TCR adjustment error due to the developer agitating operation not completed

    successfully, the message "operating ..." disappears and an error code is displayed


    Are you rebuilding the drum or replacing complete unit?
    Let us eat, drink, and be merry, because tomorrow we may die!

    For all your firmware & service manual needs please visit us at:

    www.copierfirmware.co.uk - www.printerfirmware.co.uk




  8. #8
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    Re: Bizhub 421-500 install drum and developer unit

    complete replacing with original drum unit and developer unit

  9. #9
    Service Manager 5,000+ Posts
    Bizhub 421-500 install drum and developer unit

    copier tech's Avatar
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    Re: Bizhub 421-500 install drum and developer unit

    Quote Originally Posted by shadows View Post
    complete replacing with original drum unit and developer unit
    Your print sample shows lines, the drum is not being cleaned, but this has been replaced.

    Are you using genuine KM toner?
    Let us eat, drink, and be merry, because tomorrow we may die!

    For all your firmware & service manual needs please visit us at:

    www.copierfirmware.co.uk - www.printerfirmware.co.uk




  10. #10
    Junior Member
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    Re: Bizhub 421-500 install drum and developer unit

    No , right now in copyer is not oem bizhub toner

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