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  1. #1
    Trusted Tech 50+ Posts
    How to check Magnetic Roller Strength

    denvertan's Avatar
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    How to check Magnetic Roller Strength

    My old school method is to turn the roller manually and make sure the whole roller is stick with developer.
    Any scientific way I can check the roller instead of my old school way.

    This is what happen when I use my old school way.
    Last month it is full of developer, this month is not.

    zzzzaaaaa.jpg

  2. #2
    KonicaMinolta Senior Tech 250+ Posts srvctec's Avatar
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    Re: How to check Magnetic Roller Strength

    The missing developer most likely has nothing to do with your magnetic roller losing any magnetism. I've only come across this issue (mag roller losing magnetism) a handful of times over the last 31 years and it was always on the same model, the Minolta 1030. Your issue is that the developer is missing from the developing unit for some reason and you need to find out why.
    Started in the copier service business in the fall of 1988 and have worked at the same company since then, now the senior tech, since 2000.

  3. #3
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: How to check Magnetic Roller Strength

    Agree, most likely machine is dumping developer into WTB. Also if you turn mag roller wrong side on some models there are Mylars that may flip and cause issues. I have maybe one failed magnetic roller, magnets broke inside.
    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.

  4. #4
    Service Manager 5,000+ Posts
    How to check Magnetic Roller Strength

    Phil B.'s Avatar
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    Re: How to check Magnetic Roller Strength

    Quote Originally Posted by tsbservice View Post
    Agree, most likely machine is dumping developer into WTB. Also if you turn mag roller wrong side on some models there are Mylars that may flip and cause issues. I have maybe one failed magnetic roller, magnets broke inside.
    in ANY SM that I've read over the past 31+yrs , there has always been a diagram showing WHICH direction to turn mag roller to avoid mylar flip. I have seen trained techs ignore that and then wonder why they have dumping and poor CQ.

    only one mag roller I can remember was the cause... the enduser had dropped the cart, cracking the magnet inside the roller. VERY RARE.

  5. #5
    Master Of The Obvious 10,000+ Posts
    How to check Magnetic Roller Strength

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    Re: How to check Magnetic Roller Strength

    The main reasons I've seen for dumping developer is primary charge loss, or drum cleaning LED failure. =^..^=
    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 =^..^=

  6. #6
    Master Of The Obvious 10,000+ Posts
    How to check Magnetic Roller Strength

    blackcat4866's Avatar
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    Re: How to check Magnetic Roller Strength

    Quote Originally Posted by Phil B. View Post
    in ANY SM that I've read over the past 31+yrs , there has always been a diagram showing WHICH direction to turn mag roller to avoid mylar flip. I have seen trained techs ignore that and then wonder why they have dumping and poor CQ.

    only one mag roller I can remember was the cause... the enduser had dropped the cart, cracking the magnet inside the roller. VERY RARE.
    I've done this a few times myself, the last time on a bizhub C1060. Once that mylar flips from turning the wrong direction, the developer will all dump. And on the C1060 its a strip of metal ... very difficult to re-position. If you can get it started flipping back at one end, turning the roller in the correct direction will crawl it back with difficulty. =^..^=
    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 =^..^=

  7. #7
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: How to check Magnetic Roller Strength

    Quote Originally Posted by blackcat4866 View Post
    I've done this a few times myself, the last time on a bizhub C1060. Once that mylar flips from turning the wrong direction, the developer will all dump. And on the C1060 its a strip of metal ... very difficult to re-position. If you can get it started flipping back at one end, turning the roller in the correct direction will crawl it back with difficulty. =^..^=
    That's the main reason I always check the manual before even start working on developer unit. You can screw things badly in a blink
    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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