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  1. #1
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    Kyocera 4501i Dumping Toner

    I have at least 10 machines that dump toner all over the registration roller. Have just as many that run fine.
    All of these machines have had new dv units replaced anywhere from 30k to 120k before they start doing it.
    I have tried complete pm kits on 4 of them but it didnt help.
    Also updated all firmware and OEM toner only.
    We clean and pages come dirty again after 10k

    Anyone else see or have this issue.

  2. #2
    Senior Tech 250+ Posts Ropariva's Avatar
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    Re: Kyocera 4501i Dumping Toner

    They were never a very clean machine to begin with, butÖ.do you vac out the dev chute and toner disposal filters at the rear as well? Insured they are running? This provides negative pressure at the dev unit to evacuate any toner dust. Itís not very efficient so must be cleaned every 300k minimum
    Full PM process? U140, Calibration, U464,U410, ?

  3. #3
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    Re: Kyocera 4501i Dumping Toner

    Have not vac out the dev chute and toner disposal filters at the rear.
    I will give that a try.




    Quote Originally Posted by Ropariva View Post
    They were never a very clean machine to begin with, butÖ.do you vac out the dev chute and toner disposal filters at the rear as well? Insured they are running? This provides negative pressure at the dev unit to evacuate any toner dust. Itís not very efficient so must be cleaned every 300k minimum
    Full PM process? U140, Calibration, U464,U410, ?

  4. #4
    Master Of The Obvious 10,000+ Posts
    Kyocera 4501i Dumping Toner

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    Re: Kyocera 4501i Dumping Toner

    It's not a cure, but definitely prolongs the interval. =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  5. #5
    Senior Tech 250+ Posts Ropariva's Avatar
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    Re: Kyocera 4501i Dumping Toner

    Quote Originally Posted by kleankopy View Post
    Have not vac out the dev chute and toner disposal filters at the rear.
    I will give that a try.
    There is an access door on the rear panel an the cover underneath unclips. Vac nozzle straight on that for a good minute. Iíd remove all the filters and check too if itís choked up.

  6. #6
    Service Manager 10,000+ Posts
    Kyocera 4501i Dumping Toner

    Phil B.'s Avatar
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    Re: Kyocera 4501i Dumping Toner

    Quote Originally Posted by blackcat4866 View Post
    It's not a cure, but definitely prolongs the interval. =^..^=
    I don't about y'all IF I get a call about PQ/CQ after getting the problem(s) explained to me ..and I get my test sheets out.

    I strip the machine of Toner/Dev/PCU/PCDU/Fuser and any 'tray' type parts Duplex etc.

    Then I vac the HELL outta the machine... then gently BLOW the paper path that can't be vac'd

    Inspect each part going back in for wear/build up/nicks/dings make note

    and repeat.

    yeah... sounds a little anal BUT.. how many time have you skipped those step and had to tear it all out again, just to replace a failed dev unit?

  7. #7
    Senior Tech 250+ Posts
    Kyocera 4501i Dumping Toner


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    Re: Kyocera 4501i Dumping Toner

    Once you remove the registration assembly and vacuum it out and the copier frame, and the duct at the rear of the machine. You should replace all the duct seals that can be found in the parts book Fig 13 this will reduce the amount of toner dust.

  8. #8
    Senior Tech 250+ Posts
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    Re: Kyocera 4501i Dumping Toner

    look here to find all areas for cleaning
    Attached Files Attached Files

  9. #9
    Senior Tech 100+ Posts
    Kyocera 4501i Dumping Toner

    Samanator's Avatar
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    Re: Kyocera 4501i Dumping Toner

    Thanks for the bulletin KYO_OEM. A big help to show others.

  10. #10
    Senior Tech 250+ Posts
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    Re: Kyocera 4501i Dumping Toner

    look for this additional bulletin for checking if seal modification would done by factory
    Attached Files Attached Files

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