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  1. #1
    Senior Tech 250+ Posts
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    MX-354 keeps getting F2-40 errors

    At first I thought this was due to the generic toner my company uses,the stuff sucks. It seemed to happen when the toner would run out and the new toner installed. Twice it has blown the toner sensor in the developer unit. Developer has been changed both times and I even installed a different developer unit. We now are running oem toner in this and now today we got this code again. I am not the tech that went out today but it seemes to have happened when it ran out of toner. Anyone seen issues with this model?

  2. #2
    Trusted Tech 50+ Posts
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    Re: MX-354 keeps getting F2-40 errors

    Hi

    Sim 25-2 : result 128 +/- 10 ??
    How old are drum-unit/main charger/dust filter ??
    Firmware 05.00.cc / 05.00.c1 ??

  3. #3
    Senior Tech 250+ Posts
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    Re: MX-354 keeps getting F2-40 errors

    Firmware is latest and all maint parts have low counts on them.

  4. #4
    Senior member of CRS 2,500+ Posts
    MX-354 keeps getting F2-40 errors

    ZOOTECH's Avatar
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    Re: MX-354 keeps getting F2-40 errors

    With the toner cartridge removed and front door cheated, run SIM 25-1. If it's not in the range given above, you have an over/under toner level.
    "You can't trust your eyes, if your mind is out of focus" --

  5. #5
    Senior Tech 250+ Posts
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    Re: MX-354 keeps getting F2-40 errors

    I understand about the toner level but at least two times it blew out the toner sensor. Put in new developer mix and when running 25-2 no reading. Replaced sensor twice and replaced the whole developer unit once because we didnt have another toner sensor to put in.

  6. #6
    Agitating Artificer 250+ Posts CopierTechofOmens's Avatar
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    Re: MX-354 keeps getting F2-40 errors

    Is the machine pre 9/14? The main drive and toner supply clutch have been updated. If you've checked all the mechanical then its electrical. I.E. Wiring harness, PCU

  7. #7
    Senior Tech 250+ Posts
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    Re: MX-354 keeps getting F2-40 errors

    Quote Originally Posted by CopierTechofOmens View Post
    Is the machine pre 9/14? The main drive and toner supply clutch have been updated. If you've checked all the mechanical then its electrical. I.E. Wiring harness, PCU
    Thanks, I will look into the clutch.

  8. #8
    Senior Tech 250+ Posts
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    Re: MX-354 keeps getting F2-40 errors

    Quote Originally Posted by CopierTechofOmens View Post
    Is the machine pre 9/14? The main drive and toner supply clutch have been updated. If you've checked all the mechanical then its electrical. I.E. Wiring harness, PCU
    I looked at the manual and I dont see any clutch in the toner system. Just a toner motor. Did not see any bullitens about this either.

  9. #9
    Technician
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    Re: MX-354 keeps getting F2-40 errors

    Hi, Check the drive unit motor, Or replace the complete drive unit , I had that happen to me once.


    Thank you,


    Copycat

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