Mpc 4500 color registration problem

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  • Wishbone
    Trusted Tech

    100+ Posts
    • Feb 2008
    • 100

    #1

    Mpc 4500 color registration problem

    B/W looks fine. None of the colors line up and it won't even pass the rough adjustment in service mode. I replaced the whole transfer unit and cleaned the id sensors and didn't help, still won't pass. Firmware was also updated to the latest and greatest. Any other idea's?
  • banginbishop
    grumpy old git

    500+ Posts
    • Oct 2007
    • 894

    #2
    Haven't had the colour registration problem but the manual says a few things to try:


    Color Registration


    displayed at the end. Also, you can check the result with SP 2-194-10 to -12.


    also try the normall ACC or sp 3001-004 (full music) after cleaning the sensors.



    Incontinentia Buttocks

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    • Wishbone
      Trusted Tech

      100+ Posts
      • Feb 2008
      • 100

      #3
      Yes have tried that. SP2-111-3 is the rough adjustment. New Id sensors will be in today. Also the color dev units have 180,000 on them which are overdue. I will replace the dev as maybe the patch isn't good enough to get a good registration reading. If all this fails today then I will look at NVram.

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      • Jomama46
        Field Supervisor

        Site Contributor
        2,500+ Posts
        • Apr 2008
        • 2900

        #4
        There is a long-ass but effective procedure written for the DSc445s (#32) that has been effective for me. It requires a loupe in order to see the lines but if you have replaced the transfer belt and cleaned the top roller, this is the next step.
        sigpic
        You never realize how cheap a professional is until after you let an amateur do it.
        A+; Network +; PDI+

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        • tjvincent
          Trusted Tech

          250+ Posts
          • Apr 2008
          • 280

          #5
          Are all 3 of your colors toned up , if not try toning up manually first , I have seen this a few times cause your line adjust to fail.

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          • Wishbone
            Trusted Tech

            100+ Posts
            • Feb 2008
            • 100

            #6
            Just to update I got this problem resolved today. I replaced the developer and that fixed it right away. I replace all 4 of them but imo the black one was worse off than the colors. It uses black even in full color mode and it was really week causing a poor patch that could not be read. Easy fix thank goodness and I'll file it away in my head for another day!

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            • Jomama46
              Field Supervisor

              Site Contributor
              2,500+ Posts
              • Apr 2008
              • 2900

              #7
              Glad you got it sorted out without pulling all your hair out.
              sigpic
              You never realize how cheap a professional is until after you let an amateur do it.
              A+; Network +; PDI+

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