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  1. #1
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    mp 4002 light copies

    i have change opc drum , clean blade , charge roller, developer. set bias too default first and make developer inti without the toner drop on devepoler unit. at first everything its ok. after 3000 copies i have light copies , the black is not so black . any help?
    i have clean id sensor and make force toner but the same. pls help me.

  2. #2
    Field Supervisor 500+ Posts Zeldaman's Avatar
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    Re: mp 4002 light copies

    Hi there!
    Have you cleaned the magroller? My 1. guess is the tonerhopper. The 4 shuffle-mylars often get loose so the toner is partially blocked.
    Hope this helps.
    Greetings...

  3. #3
    Service Manager 1,000+ Posts
    mp 4002 light copies

    FrohnB's Avatar
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    Re: mp 4002 light copies

    Did you forget to take out the clear toner plug (the one you insert into toner chute when you flip the Drum Assembly over)? I did this on one of my first PM's for this series.

  4. #4
    Service Manager 1,000+ Posts luca72's Avatar
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    Re: mp 4002 light copies

    Quote Originally Posted by miltiadisf View Post
    i have change opc drum , clean blade , charge roller, developer. set bias too default first and make developer inti without the toner drop on devepoler unit. at first everything its ok. after 3000 copies i have light copies , the black is not so black . any help?
    i have clean id sensor and make force toner but the same. pls help me.

    besides everything you've done, clean all the lenses / mirrors inside the laser box unit: it's easy

  5. #5
    Senior Tech 100+ Posts CopyBats's Avatar
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    Re: mp 4002 light copies

    Quote Originally Posted by miltiadisf View Post
    i have change opc drum , clean blade , charge roller, developer. set bias too default first and make developer inti without the toner drop on devepoler unit. at first everything its ok. after 3000 copies i have light copies , the black is not so black . any help?
    i have clean id sensor and make force toner but the same. pls help me.
    How is the quality of the paper? Is it leaving a lot of dust? ( Cheaper paper tends to do that). Is your operating environment normal? ( Humidity, temperature etc)
    If it works, don't touch it.

  6. #6
    Senior Tech 100+ Posts
    mp 4002 light copies


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    Re: mp 4002 light copies

    What toner are you using?

    a client used a few generics with which he gave this problem

    3500D is the jar that bothers

    when you put another mark it was solved

    As you have already explained, check the hopper, as the toner is caked in the toner output to the image unit and the copy is rinsed

  7. #7
    Service Manager 10,000+ Posts
    mp 4002 light copies

    Phil B.'s Avatar
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    Re: mp 4002 light copies

    Quote Originally Posted by MIGUELMARCHENA View Post

    3500D is the jar that bothers

    when you put another mark it was solved

    WTF HUH?

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