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  1. #1
    Field Supervisor 500+ Posts
    KM5050 random faint gray line


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    KM5050 random faint gray line

    Replaced drum, fuser, main charge corona and transfer roller.
    Had to take pictures of samples, couldnít pick up when scanned.
    Only happens about once every 50 pages.B84B1512-7738-47D9-8B0E-037ED1FFF593.jpgB37349DE-F37A-442B-93CA-547C9076B4CC.jpg

  2. #2
    Service Manager 1,000+ Posts
    KM5050 random faint gray line


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    Re: KM5050 random faint gray line

    Why not try dev unit?

  3. #3
    Master Of The Obvious 10,000+ Posts
    KM5050 random faint gray line

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    Re: KM5050 random faint gray line

    If these are copies, I would suspect that there is some lint on the optical mirrors or slit glass. The movement of the scanner can make dust bunnies move around. Also a dry scanner rail can cause a mirror assembly to tip slightly, presenting the dust bunny at just the right angle.


    The image content looks like internal reports, but you could very easily use internal reports to scan off of the glass or through the document feeder. =^..^=
    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.


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

  4. #4
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    KM5050 random faint gray line


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    Re: KM5050 random faint gray line

    I have ordered a developer unit and will try it tomorrow
    It does this on internal prints as well as copies

  5. #5
    Service Manager 1,000+ Posts tmaged's Avatar
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    Re: KM5050 random faint gray line

    Iíd say main charge. The different colored spacing wheels are fitted to each drum unit. You can only replace the main charge with a new one if both sets of wheels are the same. Otherwise, pull the wheels off the old main charge & install them on the new one.
    Hope that helps !
    -Tony


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  6. #6
    Field Supervisor 500+ Posts
    KM5050 random faint gray line


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    Re: KM5050 random faint gray line

    Quote Originally Posted by tmaged View Post
    Iíd say main charge. The different colored spacing wheels are fitted to each drum unit. You can only replace the main charge with a new one if both sets of wheels are the same. Otherwise, pull the wheels off the old main charge & install them on the new one.
    Iím not sure what you are referring to but I did replace the main charge.

  7. #7
    Service Manager 1,000+ Posts tmaged's Avatar
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    Re: KM5050 random faint gray line

    Quote Originally Posted by copyaction View Post
    Iím not sure what you are referring to but I did replace the main charge.
    Pull out the main charge unit & you will see a small wheel on each end of the main charge. These wheels ride on the drum unit & keep the spacing constant between the drum & main charge.
    There are (I believe) 3 different colored wheels. The wheels are specific to each drum unit. If your main charge in your drum unit has 2 black wheels, you canít install a main charge with 2 grey wheels. You would have to pull the black wheels out of the old charge, remove the grey wheels in the new charge & install the black wheels in the new charge, for example.
    Hope that helps !
    -Tony


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  8. #8
    Service Manager 1,000+ Posts
    KM5050 random faint gray line


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    Re: KM5050 random faint gray line

    Quote Originally Posted by tmaged View Post
    Pull out the main charge unit & you will see a small wheel on each end of the main charge. These wheels ride on the drum unit & keep the spacing constant between the drum & main charge.
    There are (I believe) 3 different colored wheels. The wheels are specific to each drum unit. If your main charge in your drum unit has 2 black wheels, you canít install a main charge with 2 grey wheels. You would have to pull the black wheels out of the old charge, remove the grey wheels in the new charge & install the black wheels in the new charge, for example.
    Good info but all of that's been replaced.

  9. #9
    Field Supervisor 500+ Posts
    KM5050 random faint gray line


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    Re: KM5050 random faint gray line

    Quote Originally Posted by JR2ALTA View Post
    Good info but all of that's been replaced.
    Yes they were both replaced together right from the maintenance kit (and yes it was doing it before they were replaced)

  10. #10
    Senior Tech 100+ Posts daveh12's Avatar
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    Re: KM5050 random faint gray line

    There is a drum blade that sits in front of the drum unit, its comes as part of the maintenance kit, it can become stuffed with paper dust and residual toner. has this been replaced or cleaned out?

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