bizhub C452 - wide cyan strip (shadow) in sub-scan direction only in colour mode

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  • Laserbeam
    Trusted Tech

    100+ Posts
    • Aug 2011
    • 152

    [CQ] bizhub C452 - wide cyan strip (shadow) in sub-scan direction only in colour mode

    Hi at all,

    each full-color copy or print-out have a wide cyan strip (shadow) in the sub-scanning direction. Black&white mode is okay. The examples in the attachment shows a black& white and a full-colour copy from the test chart. The other are half-tone printouts in cyan, yellow, magenta and black (density 70) from the tech. menu.
    I removed the transfer-belt and checked it visually but no fault was found. After the re-install the stripes are much stronger than before.
    It is a fairly new machine. Total count 9157
    Can the transver-belt occur these stripes or I'm on the wrong way?

    many greetings from Germany
    Attached Files
  • scottybbb
    Trusted Tech
    • Dec 2010
    • 126

    #2
    Re: bizhub C452 - wide cyan strip (shadow) in sub-scan direction only in colour mode

    Try a new cyan IU unit.

    Comment

    • Gaffers01
      Trusted Tech

      Site Contributor
      250+ Posts
      • May 2011
      • 329

      #3
      Re: bizhub C452 - wide cyan strip (shadow) in sub-scan direction only in colour mode

      yeah it looks like the drum is faulty, maybe sunlight got onto the drum.

      Comment

      • Laserbeam
        Trusted Tech

        100+ Posts
        • Aug 2011
        • 152

        #4
        Re: bizhub C452 - wide cyan strip (shadow) in sub-scan direction only in colour mode

        Today I replaced the IU-cyan unit and all works fine. Thank you for your replies!!!

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