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  1. #1
    Field Supervisor 500+ Posts Bix's Avatar
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    458e image quality black stripe

    hi i have a bizhub 458e with about 300k pages.
    I replaced the drum at around 230k. Now the transfer belt and the 2nd transfer roller because it has reached periodic maintenance.


    All OEM. Unfortunately, I have this black stripe. When I went I forgot to check the fuser roller to see if it was dirty.


    For me the roller inside the fuser is dirty. What do you think? Even after several stabilizations, the problem remains.

    thank you


    Testseite 1.pdf
    Testseite 2.pdf

  2. #2
    RTFM!! 2,500+ Posts allan's Avatar
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    Re: 458e image quality black stripe

    Think you are right. Check the fuser roller surface for defects.
    You can try to increase the fuser temp a touch to check if it helps.
    Is it always on the same space on the paper?
    Whatever

  3. #3
    Service Manager 1,000+ Posts
    458e image quality black stripe

    Synthohol's Avatar
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    Re: 458e image quality black stripe

    basic troubleshooting 101 again, print a halftone test pattern in service mode and stop it before it goes in the fuser and inspect. or half fused half unfused.
    you will find the culprit, i have no doubt :

  4. #4
    Master Of The Obvious 10,000+ Posts
    458e image quality black stripe

    blackcat4866's Avatar
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    Re: 458e image quality black stripe

    It looks a bit like the fuser to me too, The combination of speckling (left over unfused toner), and chipping in the solids. It would help to see an image with more fill. Try this:

    I'm sure that you'll figure it out.
    Attached Files Attached Files
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  5. #5
    Field Supervisor 500+ Posts Woxner's Avatar
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    Re: 458e image quality black stripe

    looks like fuser to me. ive seen these only go 300k

  6. #6
    Field Supervisor 500+ Posts Bix's Avatar
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    Re: 458e image quality black stripe

    hello, I confirm: it is the fuser. I have installed a new unit. The problem is now solved.


    The roller looks good but the toner is set. Do you think there is a way to recover it? Perhaps with some isopropyl alcohol.

  7. #7
    Field Supervisor 500+ Posts Bix's Avatar
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    Re: 458e image quality black stripe

    Also today! A bizhub 308e with 280k has the same problem. I saw the fuser roller and it is ruined in the same spot, like the 458e. This time the roller is even more ruined.

  8. #8
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: 458e image quality black stripe

    Quote Originally Posted by Bix View Post

    The roller looks good but the toner is set. Do you think there is a way to recover it? Perhaps with some isopropyl alcohol.
    I tried once out of curiosity but failed. You may be more lucky.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.

    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

  9. #9
    Field Supervisor 500+ Posts Bix's Avatar
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    Re: 458e image quality black stripe

    All bizhub 308e and some 458e at around 200k have the exact same problem in the fuser. It starts to get dirty and there is no way to clean it except by replacing it.


    The fuser has a new part number, as well as simply indicating with a sticker that the fuser is hot, I hope something has changed.
    The normal 8 series, so far no problem.

  10. #10
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: 458e image quality black stripe

    Good to know. Even we have only single one B&W bizhub 558e in the field. Now I'm more happy with our fleet of C258 machines.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.

    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

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