[Canon 5550i] images problem

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  • tjrtkdqja123
    Banned User
    • Feb 2022
    • 21

    [CQ] [Canon 5550i] images problem

    KakaoTalk_20240301_150410674.jpg

    The left side is a normal machine, and the right side is a problem machine.

    This is chart number 10 on the test page, and it appears as if there is fog.

    It's an automatic color correction pattern, but it seems like the 4 colors of black appear as blue.



    Things I've tried

    4-color drum replacement,
    Patch sensor inspection
    Developer BK, C replacement
    Toner is not provided and the same toner is used as the left pattern machine.
  • zoraldinho
    teacher-guide-expert-guru

    Site Contributor
    2,500+ Posts
    • Mar 2008
    • 4955

    #2
    Re: [Canon 5550i] images problem

    Can you post a pic of PG-10 from service mode please.
    Practice makes perfect
    If it ain't broke, don't fix it
    A picture is worth a thousand words
    If you want something done right, you have to do it yourself

    Comment

    • tjrtkdqja123
      Banned User
      • Feb 2022
      • 21

      #3
      Re: [Canon 5550i] images problem

      1709451854345.jpg
      Thank you for your answer
      This is test page 10.
      The middle is the original,
      adjust - hv-tr 2tr off

      Left is -100
      If the right side is + 100.

      Comment

      • zoraldinho
        teacher-guide-expert-guru

        Site Contributor
        2,500+ Posts
        • Mar 2008
        • 4955

        #4
        Re: [Canon 5550i] images problem

        Is the image on ITB ok?
        the sec.transfer roller could be causing problems.
        If it's not ok:
        Try replacing the dc from another device.
        Practice makes perfect
        If it ain't broke, don't fix it
        A picture is worth a thousand words
        If you want something done right, you have to do it yourself

        Comment

        • tjrtkdqja123
          Banned User
          • Feb 2022
          • 21

          #5
          Re: [Canon 5550i] images problem

          thank you for the answer.
          I tried replacing the belt Assy, but the symptom is the same, so I will check DC.

          Comment

          • zoraldinho
            teacher-guide-expert-guru

            Site Contributor
            2,500+ Posts
            • Mar 2008
            • 4955

            #6
            Re: [Canon 5550i] images problem

            Originally posted by tjrtkdqja123
            thank you for the answer.
            I tried replacing the belt Assy, but the symptom is the same, so I will check DC.

            I didn't tell you to change the transfer belt. Check the image quality on itb! If it is ok, replace the sec transfer roller.
            Practice makes perfect
            If it ain't broke, don't fix it
            A picture is worth a thousand words
            If you want something done right, you have to do it yourself

            Comment

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