Error 79:04 HP designjet 7100

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  • fbkhan3
    Trusted Tech

    250+ Posts
    • May 2012
    • 421

    [Error Code] Error 79:04 HP designjet 7100

    Dear Techs

    hope you all doing very well,Kindly see attached snapshot , when boot process reaches to 20 percent this error will pop up on main display
    is it related to Disk Drive failure ,Service utilities are not accessible, can't upgrade the firmware through Network,do i need to replace Hard disk if some could help me with part number ,or New formatter will be a fix?

    Thank you very much and Appreciate your help and support.

    Regard's
    Attached Files
  • Lance15
    Service Manager

    Site Contributor
    1,000+ Posts
    • Jun 2015
    • 1070

    #2

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    • fbkhan3
      Trusted Tech

      250+ Posts
      • May 2012
      • 421

      #3
      Re: Error 79:04 HP designjet 7100

      Thanks a bunch lane for detailed reply.

      I don't find anything like Diagnostics Boot Mode in service manual can you be kind enough to write that.

      as i earlier said Service Utilities menu are not accessible because machine of the error code.


      Thanks for help and support.




      Regard's

      Comment

      • Lance15
        Service Manager

        Site Contributor
        1,000+ Posts
        • Jun 2015
        • 1070

        #4
        Re: Error 79:04 HP designjet 7100

        Page 91 of the service manual - Entering the Service Test menu

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