problem xerox 550

Discussion in 'Xerox Digital Presses' started by lofrom, Nov 19, 2020.

  1. lofrom

    lofrom Member

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    Hello everyone, I have a problem with the color outputs (spots ?). On the other hand in black print only, I do not have the spots. Thank you for your help

    <attempted translation to English from original post>
     

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  2. Biggs

    Biggs Senior Member

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    If I reply in English, would you have any understanding of my messages?
    I can try to use a translator, but the technical terms might become lost...
     
  3. lofrom

    lofrom Member

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    We can try because if you have the solution it would be great! I have a bilingual brother; he should be able to help me. Thank you !
     
  4. Biggs

    Biggs Senior Member

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    Something is going on while the toner is on the image transfer belt. It could be something coming in contact with the belt (warped part dragging the toner) or it could be the ITB cleaning station failing in some way.

    you can see the streaks on the image are made of the primary colors, not a blend or mix of color
     
  5. lofrom

    lofrom Member

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    Thank you for your answer. I found the lines on the drums which then is found on the belt and on the 2nd btr then on the back of the sheet passing only on the front.
     
  6. Biggs

    Biggs Senior Member

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    Since the problem has spread quite a bit it may be difficult to identify the initial culprit.

    my guess would be the drum’s smooth outer layer degraded so much they began to mark up the belt. Unfortunately every will need replacement at this point.
     
  7. lofrom

    lofrom Member

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    After changing the drums, the problem persists but it becomes random.
    I have completely cleaned 2nd btr and the ibt cleaner.
    Thank you for your help
     
  8. Biggs

    Biggs Senior Member

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    If the ITB itself has hard lines etched into the belt’s surface, you may have no choice but to replace the belt.

    I must ask; are you using the proper paper settings when running your work? And is the paper being used within the specs of the machine?
     
  9. Milo Wilson

    Milo Wilson Senior Member

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    Looks like you need to replace the IBT cleaning blade
     
  10. lofrom

    lofrom Member

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    Thank you all. By changing the cleaning blade everything is ok.
    It's still weird to have had the problem on all the colored drums at the same time.
     

  11. Biggs

    Biggs Senior Member

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    It’s not the drums that were the problem, the belt carries all four colors to the paper, So an issue with the belt will present through your entire image. Through all colors
     
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