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  1. #1
    Senior Tech 250+ Posts
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    Light copies for TA 4500 and 3500

    These machines have almost the same problem . The copies are light. I cleaned optics, charge roller at both machines At 3500 i swapted developer unit and charge roller with no result. At 3500 i execute 132 and works fine for about 300 - 400 copies and then light copies . At 4500 i have to execute 130, 132 and also darken the density to have acceptable result. But after some copies , light toner.
    Toner is genuin also both machines under 200k copies. Any idea?

  2. #2
    Senior Tech 100+ Posts
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    Re: Light copies for TA 4500 and 3500

    Clean the inside of the laser


    Quote Originally Posted by Gab View Post
    These machines have almost the same problem . The copies are light. I cleaned optics, charge roller at both machines At 3500 i swapted developer unit and charge roller with no result. At 3500 i execute 132 and works fine for about 300 - 400 copies and then light copies . At 4500 i have to execute 130, 132 and also darken the density to have acceptable result. But after some copies , light toner.
    Toner is genuin also both machines under 200k copies. Any idea?

  3. #3
    Senior Tech 100+ Posts
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    Re: Light copies for TA 4500 and 3500

    I would try a new drum, even with only 200k on machine the unit is pretty old in years.

  4. #4
    Copier Technician 250+ Posts
    Light copies for TA 4500 and 3500

    mga's Avatar
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    Re: Light copies for TA 4500 and 3500

    Try replacing with new oem parts as units when needs what's the life on pm

  5. #5
    Junior Member
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    Re: Light copies for TA 4500 and 3500

    Quote Originally Posted by toddanderson View Post
    Clean the inside of the laser
    If the density getting lighter as u are making copies it seems like the toner hopper is not working correctly. Did u ever get an error code when copies are too light?

    If yes clean the hopping unit and clean all the sensors.



    Sent from my STK-L22 using Tapatalk

  6. #6
    Service Manager 1,000+ Posts Bix's Avatar
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    Re: Light copies for TA 4500 and 3500

    Clean PHUNIT

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