HP640 Printing a test page on every boot

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  • sami42
    • Jul 2025

    #1

    HP640 Printing a test page on every boot

    Hello
    the printer make a test page on every boot suddenly
    (both LEDs are lit continuously)
    .if somebody knows this problem,thanks by advance..
  • BrickPilot
    Technician
    • Sep 2008
    • 41

    #2
    button stuck on control panel maybe

    Comment

    • sami42

      #3
      thaks for answer,after verification the button is normal.

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