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  1. #1
    Service Manager 1,000+ Posts
    LJ M9040 MFP with lines . Changed Cartr went away came back next day


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    Thumbs up LJ M9040 MFP with lines . Changed Cartr went away came back next day

    LJ9040 mfp had line. Changed cartridge which customer had in stock lines disappeared.
    A day later customer called and said lines returned. Customer said he was getting the
    lines and they would go away for a day o 2 and come back I am thinking possibly fuser
    unit may have grooves that sometimes fill in and transfer to paper. Any suggestion are
    appreciated. Frank


  2. #2
    Technician
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    Re: LJ M9040 MFP with lines . Changed Cartr went away came back next day

    Sometime the power supply starts cooking the transfer roller and toner cartridge with undetected high voltage or something.

    1. Try another toner with a new transfer roller, AT THE SAME TIME. It is important, with this theory, to replace the transfer roller at the same time as the toner because the overcharge or static electricity carries from one contaminated part to the other. If you only replace the toner or the roller, the problem seems to go away for a couple days, then returns.

    2. Replace the HVPS

    3. Replace the DC Controller, aka engine control board.


  3. #3
    Field Supervisor 500+ Posts Wild Bill's Avatar
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    Re: LJ M9040 MFP with lines . Changed Cartr went away came back next day

    Did you check it in person? We've already established that customers are full of Sheeaut.

    Izzy

  4. #4
    Senior Tech 100+ Posts
    LJ M9040 MFP with lines . Changed Cartr went away came back next day

    Northwestservice's Avatar
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    Re: LJ M9040 MFP with lines . Changed Cartr went away came back next day

    i have the same thing customer had lines changed cart (3 new oem) and then phoned in a call went there and yup 3 bad oem carts customer has had enough with hp and the cost of carts so is going replace the printer it is a hp4200 but was working fine looking at the cart I would say that it is primary roller issue


  5. #5
    Senior Tech 250+ Posts
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    Re: LJ M9040 MFP with lines . Changed Cartr went away came back next day

    Did you check it in person? We've already established that customers are full of Sheeaut.

    Yuuuuup.


  6. #6
    Service Manager 1,000+ Posts
    LJ M9040 MFP with lines . Changed Cartr went away came back next day


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    Thumbs up Re: LJ M9040 MFP with lines . Changed Cartr went away came back next day

    Thank you guys for your information. I went back to customer and the lines are from front to rear of machine.
    I reinstalled the old cartridge and there were lines but many more and not in same places.

    These are compatible cartridges and possibly reman cartridges and it says "this is a Premium cartridge" on the cartridge where it would normally
    say HP.
    I suspect these cartridges are not made well and start out okay but after a couple of weeks or month or so they
    start to give lines and it gradually gets worse.
    The only other thing I can think of is something in the machine is causing the cartridge to get lines. I told customer
    I would get him an OEM cartridge and we would monitor it from there. Frank


  7. #7
    Field Supervisor 500+ Posts Phil B.'s Avatar
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    Re: LJ M9040 MFP with lines . Changed Cartr went away came back next day

    Quote Originally Posted by axyun View Post
    Thank you guys for your information. I went back to customer and the lines are from front to rear of machine.
    I reinstalled the old cartridge and there were lines but many more and not in same places.

    These are compatible cartridges and possibly reman cartridges and it says "this is a Premium cartridge" on the cartridge where it would normally
    say HP.
    I suspect these cartridges are not made well and start out okay but after a couple of weeks or month or so they
    start to give lines and it gradually gets worse.
    The only other thing I can think of is something in the machine is causing the cartridge to get lines. I told customer
    I would get him an OEM cartridge and we would monitor it from there. Frank
    yes if the customer wants to use compatible carts steer them to the MSE brand... we have had great luck with them and they have a super warranty on their products.


  8. #8
    Service Manager 1,000+ Posts theengel's Avatar
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    Re: LJ M9040 MFP with lines . Changed Cartr went away came back next day

    Black or white lines?


  9. #9
    Service Manager 1,000+ Posts
    LJ M9040 MFP with lines . Changed Cartr went away came back next day


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    Re: LJ M9040 MFP with lines . Changed Cartr went away came back next day

    black


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