Platen glass detection error on ir4570

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  • y_us1982
    • Jul 2025

    #1

    Platen glass detection error on ir4570

    when i'm using a platen glass scanning an a4 paper, it always detect a3 size. it only happen when i closed the adf, when i let the adf opened it scan a4 like normal. anybody can help on this matter?
  • SCREWTAPE
    East Coast Imaging

    Site Contributor
    2,500+ Posts
    • Jan 2009
    • 3396

    #2
    Originally posted by y_us1982
    when i'm using a platen glass scanning an a4 paper, it always detect a3 size. it only happen when i closed the adf, when i let the adf opened it scan a4 like normal. anybody can help on this matter?
    Check your Original detection values in service mode.

    Level 2/ Copier/ Option/ Body SENS-CNF = 1


    SENS-CNF =0 (default) : AB Type Document Sensor Placement
    SENS-CNF = 1 : Inch Type Document Sensor Placement

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    • keehoon
      Junior Member
      • Aug 2010
      • 7

      #3
      if SCREWTAPE's advice is not working, try to replace reader controller board.

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