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  1. #1
    Field Supervisor 500+ Posts digicor's Avatar
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    laser jet 400 color m475dn noise

    There is a noise like high pitched squeal/grinding at warm up and some print, always when its getting ready to print, but not while printing, its loud as well , this is not bearing squeal,
    anyone have this ussue before? the machine has 18k total impressions
    thanks for any advise


  2. #2
    Technician ricoh_rockstar's Avatar
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    Re: laser jet 400 color m475dn noise

    Yesterday, a customer brought in a HP ColorLaserjet Pro m251 with similar symptomps, I replaced one of the cartridges (the yellow one in my case) and the noise whas gone.


  3. #3
    Field Supervisor 500+ Posts digicor's Avatar
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    Re: laser jet 400 color m475dn noise

    hmm ok thanks for the input , is there a way to prompt the individual motors to turn like i can on a copier?


  4. #4
    Senior Tech 250+ Posts
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    Re: laser jet 400 color m475dn noise

    Yesterday, a customer brought in a HP ColorLaserjet Pro m251 with similar symptomps, I replaced one of the cartridges (the yellow one in my case) and the noise whas gone.
    Are OEM or aftermarket carts being used? Have seen and heard ALL KINDS of issues with aftermarket carts.

    Agreed. Could be a toner cartridge. On these models, there's no "Disable Cartridge Check". You must have all carts installed for the unit to come to ready.


  5. #5
    Senior Tech 100+ Posts
    laser jet 400 color m475dn noise


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    Re: laser jet 400 color m475dn noise

    Take one cartridge out at a time and close door, machine will cycle for a brief time, one at a time to find out which one is making the noise, but, I also would say it's a cartridge problem.


  6. #6
    Field Supervisor 500+ Posts digicor's Avatar
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    Re: laser jet 400 color m475dn noise

    Kool thank yo all very much


  7. #7
    Field Supervisor 500+ Posts Wild Bill's Avatar
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    Re: laser jet 400 color m475dn noise

    I have had M451's (which are the same engine) make a squealing noise in the secondary transfer roller assembly.
    I replaced that assembly and ...fixed.

    Izzy

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