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  1. #1
    Join Date
    Oct 2010
    Rep Power

    Lexmark XS950de '121.04 Service Fuser Error'

    Hi all,

    Hoping someone might be able to shine some light on this. I normally do Canon equipment but a supplier in my area has gone bust leaving some customers high and dry for service support so I'm helping out as best I can.

    I have one of these XS950de machines which ripped the upper fuser film and so needed a fuser unit replacement. I ordered and fitted a brand new (rather expensive!) fuser unit but the 121.04 error code won't go.

    The manual advises me to 'flash the PJL file' and sends me to a link on the Lexmark support site....which is 404 page not found!!

    If anyone who knows about this model can throw me any help I'd be really grateful - as would the customer who is a school and have been badly stitched up by the salesman (I know, shock!!).

    Many thanks in advance

    Mark in England

  2. #2
    Technician alinc2016's Avatar
    Join Date
    Nov 2016
    Timisoara, Timis
    Rep Power

    Re: Lexmark XS950de '121.04 Service Fuser Error'

    How did you solve this problem?
    At Lexmark XS950 I have encountered this problem. I changed the fuser but the machine can not enter the diagnostic menu with the 2 and 6 keys pressed at startup.
    In the test menu (keys 3 and 6) I can enter but there I can not delete the error !!

  3. #3
    Service Manager 1,000+ Posts
    Lexmark XS950de '121.04 Service Fuser Error'

    SalesServiceGuy's Avatar
    Join Date
    Dec 2009
    Nova Scotia
    Rep Power

    Re: Lexmark XS950de '121.04 Service Fuser Error'

    Introduced before 2011, time to move on and upgrade the customer to whatever current product your company sells.


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