biz 250

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  • Gab
    Senior Tech
    • Aug 2015
    • 633

    biz 250

    Machine shows M4.
    Can i replace only drum and not developer at this point?
    If i can , i reset IU only PC life ?
    I will replace developer later .
  • copyman
    Owner / Technician

    Site Contributor
    2,500+ Posts
    • Sep 2005
    • 4213

    #2
    Re: biz 250

    They have to be done together. Then run F8. If you try and replace just drum you will get the dreaded 2557 code. There are a lot of posts on this forum about this.

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    • laitang
      Senior Tech

      500+ Posts
      • Nov 2012
      • 627

      #3
      Re: biz 250

      You can if use toner not genuine.
      You can change copy kit counter to "mode 1" and M4 disappear!

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