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  1. #1
    Trusted Tech 50+ Posts tariq65's Avatar
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    np-6512 toner light blinking

    np-6512 toner light blinking but toner put new cantinew light blimk

  2. #2
    Service Manager 10,000+ Posts
    np-6512 toner light blinking

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    Quote Originally Posted by tariq65 View Post
    np-6512 toner light blinking but toner put new cantinew light blimk

    The Bias Contacts on the rear frame of the machine may be making poor contact. They separate when the clam-shell is opened. Since the machine uses bias for the toner present circuitry, if there is a problem with bias to the developer unit, a false "Add Toner" indication may occur. Clean and reform the contacts as necessary to ensure a good connection.

    bias.jpg

    Picture is from a NP 6016 / 6521
    but these clam-shell NP6000 series all have those bias contacts/& same symptom when deformed
    **Knowledge is time consuming, exhausting and costly for a trained Tech.**

  3. #3
    Man About Town 250+ Posts CanonSco's Avatar
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    ^^
    Agreed ....
    Used to carry those contacts , and fit them semi regularly.
    Yes, I am a nerd.
    Gaming PC - check. Raspberry Pi - Check. Custom ROM on phone - check. Thick glasses - check.

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