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Thread: MFC-L5900 CQ

  1. #1
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    MFC-L5900 CQ

    When you scan or copy the image is light(not when printing or printing internal report). The machine is 2 years old with about 60k on it. It has gradually got like this, even with it on the darkest setting it is lighter than it should be. They also have 2 MFC-L5700's that were bought at the same time and one of them is doing the same thing.
    Any suggestions ?
    Thanks,
    Dave

  2. #2
    Senior Tech 100+ Posts Dickie's Avatar
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    Re: MFC-L5900 CQ

    I know it's stating the obvious but cleaning the optics would be a good place to start.
    Not au fait with american model numbers but if it does not have optics recalibrate the scanner.
    This is normally done by putting plain white paper on scan head and running maintenance mode 02 followed by 55 then 99 to exit

    Hope this helps

  3. #3
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: MFC-L5900 CQ

    Turn off toner save mode under Ecology. Also at 60k drum unit should be changed, they can only reset drum counter without changing parts.
    Agree optics would be always to consider especially if they smoke alot around machine or in dusty environment.
    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
    Senior Tech 100+ Posts Dickie's Avatar
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    Re: MFC-L5900 CQ

    Sorry TSB it cannot be either of those as Scans are weak as well.

    Can only be optics or CCD logically

  5. #5
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: MFC-L5900 CQ

    Quote Originally Posted by Dickie View Post
    Sorry TSB it cannot be either of those as Scans are weak as well.

    Can only be optics or CCD logically
    Dickie, I like and truly appreciate your inputs. I admit we know theory and you're right on the money here. Still in my practice I never opened scanner of 6900 for cleaning and I have tons of them in the field.
    But, if Brother messed 5900 model scanner sealing...that would be another story.

    OP make 2 to 2 sided copy/scan from ADF, if 1 side output is bad and 2 good do what Dickie suggested.
    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.

  6. #6
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    Re: MFC-L5900 CQ

    There are no optics to clean other than the scanner, it is clean. I tried the code 55 in maintenance mode with no change. When you do 2-2 thru ADF both sides are light. These machines are in a lawyers office which is clean and smoke free. Toner save mode is off.
    Is the CCD the only left that would be the culprit ? Is it cost effective to replace ?
    Thanks,
    Dave

  7. #7
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: MFC-L5900 CQ

    Do factory reset.
    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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    Re: MFC-L5900 CQ

    Quote Originally Posted by tsbservice View Post
    Do factory reset.
    Is that done in the service mode ? If so whats the code ?

  9. #9
    Service Manager 1,000+ Posts tsbservice's Avatar
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    Re: MFC-L5900 CQ

    Do it first from user menu:
    Online User's Guide
    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.

  10. #10
    Senior Tech 100+ Posts Dickie's Avatar
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    Re: MFC-L5900 CQ

    Yes reset is done via service mode
    91 is a reset without changing any user saved information
    01 Is a full reset but you will lose all customer set information so it would be a good idea to print out all available reports and settings before you do this. Then re print them afterwards and compare for any changes to reset parameters

    Good luck

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