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Thread: MPC2500 Yellow

  1. #1
    Senior Tech 100+ Posts blackdog's Avatar
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    MPC2500 Yellow

    Hey fellow Techs I looked through Threads for this issue to no avail.
    Yellow toner build up on rear side of PCU causing a parotic yellow image on rear side of prints.
    There is a yellow toner build up on top of PCU Cleaning blade toward rear only.
    New Drum, Blade, and Transfer Cleaning Unit. I find yellow toner on rear side of secondary transfer roller as well.
    This issue is yellow only.
    OEM Toner used. 250k on box.
    I hope someone has had this problem as I really don't want to keep shooting in the dark.
    Thanks for your help.


  2. #2
    Service Manager 5,000+ Posts slimslob's Avatar
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    Re: MPC2500 Yellow

    Sounds to me like it is time for a new drum unit.


  3. #3
    Field Supervisor 500+ Posts bob marley's Avatar
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    Re: MPC2500 Yellow

    Quote Originally Posted by blackdog View Post
    .
    New Drum, Blade, and Transfer Cleaning Unit. .
    .
    seems u need a new developer

    Last edited by bob marley; 03-07-2017 at 11:02 PM.
    Live for yourself and you will live in vain. Live for others, and you will live again

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    Re: MPC2500 Yellow

    Quote Originally Posted by blackdog View Post
    New Drum, Blade, and Transfer Cleaning Unit. I find yellow toner on rear side of secondary transfer roller as well.
    I Agree with Slim. Replace PCU at a minimum, and probably add a bag of yellow dev. These units are not meant to be rebuilt, so while you say you're using OEM toner, apparently you're not using an OEM drum


  5. #5
    Senior Tech 100+ Posts blackdog's Avatar
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    Re: MPC2500 Yellow

    Gentlemen Thanks,
    Looks like I'll have to bite the bullet and do a new PCU.
    Contract machine you know how it is. $$$$


  6. #6
    Senior Tech 100+ Posts blackdog's Avatar
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    Re: MPC2500 Yellow

    Hey wanted to follow up on this thread.
    Seems my cleaning charge roller with Dirtex wasn't good enough so I grabbed some Brasso, you
    know the shit we used in the Military to spiff up our Brass.
    Well the print quality couldn't be any better now.
    To bad charge rollers weren't readily available. Seems a waste to prematurely fill land fills with perfectly good PCU's.


  7. #7
    Service Manager 2,500+ Posts


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    Re: MPC2500 Yellow

    Quote Originally Posted by blackdog View Post
    Hey wanted to follow up on this thread.
    Seems my cleaning charge roller with Dirtex wasn't good enough so I grabbed some Brasso, you
    know the shit we used in the Military to spiff up our Brass.
    Well the print quality couldn't be any better now.
    To bad charge rollers weren't readily available. Seems a waste to prematurely fill land fills with perfectly good PCU's.
    If it's the old style (black coating) PCR, I use car polish (like turtle wax, etc.). Works GREAT.
    If it's the new style (Greenish coating), I scrub that surface off like a scratch ticket - right down to the nylon roller


  8. #8
    Senior Tech 100+ Posts blackdog's Avatar
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    Re: MPC2500 Yellow

    Quote Originally Posted by sandmanmac View Post
    If it's the old style (black coating) PCR, I use car polish (like turtle wax, etc.). Works GREAT.
    If it's the new style (Greenish coating), I scrub that surface off like a scratch ticket - right down to the nylon roller
    Turtle wax gives a hard shell finish. Some truth to that huh.


  9. #9
    Service Manager 5,000+ Posts slimslob's Avatar
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    Re: MPC2500 Yellow

    Quote Originally Posted by sandmanmac View Post
    If it's the old style (black coating) PCR, I use car polish (like turtle wax, etc.). Works GREAT.
    If it's the new style (Greenish coating), I scrub that surface off like a scratch ticket - right down to the nylon roller
    Quote Originally Posted by blackdog View Post
    Turtle wax gives a hard shell finish. Some truth to that huh.
    Quote Originally Posted by blackdog View Post
    Hey wanted to follow up on this thread.
    Seems my cleaning charge roller with Dirtex wasn't good enough so I grabbed some Brasso, you
    know the shit we used in the Military to spiff up our Brass.
    Well the print quality couldn't be any better now.
    To bad charge rollers weren't readily available. Seems a waste to prematurely fill land fills with perfectly good PCU's.
    When the charge roller cleaning roller starts to deteriorate, you would need a new one of those as well. The key item to the overall life of a PCU is the coating bar. Once it is gone it the end of the drum.


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