canon 4080i smudging

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  • kuby
    Senior Tech

    1,000+ Posts
    • Oct 2007
    • 1371
    #1

    canon 4080i smudging

    Have a 4080i that is smudging on the page. Needed new black drum and magenta drum and I figured that would take care of it. Smudging still there. Cleaned the transfer unit, still there. Fusing unit looks OK about 80,000 on it. Any suggestions would be appreciated.


    Thanks
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    • copier tech
      Field Supervisor

      5,000+ Posts
      • Jan 2014
      • 8100
      #2
      Re: canon 4080i smudging

      Very common fault on this model & the previous CLC3200 series.

      Remove & clean the ITB belt, particularly the metal plate that sits on the underside, toner builds up on this plate (from the leaking black drum unit) & causes the exact issue you have.
      Let us eat, drink, and be merry, because tomorrow we may die!

      For all your firmware & service manual needs please visit us at:

      www.copierfirmware.co.uk - www.printerfirmware.co.uk
      ​

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        • SAZ911
          Trusted Tech

          100+ Posts
          • Mar 2013
          • 193
          #3
          Re: canon 4080i smudging

          hi,

          I agree with Copier Tech, very common problem, thorough clean of the ITB assy should do the trick......
          SAZ911..........

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            • Canuck
              Tech Specialist

              1,000+ Posts
              • Nov 2007
              • 1713
              #4
              Re: canon 4080i smudging

              There is a modified plate for this...plate hangs down away from belt....installed many in the past

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