Pip skewing

Discussion in 'HP Indigo Digital Presses' started by jetscreamer, Nov 25, 2022.

  1. jetscreamer

    jetscreamer Senior Member

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    Is it common for the pip to skew so much that the tail will eventually (70-80 000 impressions) touch the outer ring of the cylinder which causes imaging issues?
    Can I adjust the pip clamp pressure?
     
  2. White rabbit

    White rabbit Member

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    it shouldnt move from its initial position. check first transfer and bid pressure ?
     
  3. michal

    michal Member

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    may need to replace pip clamp. Also your wetting roller can cause that problm. Make sure you have Cleaning station oil flow ok, wetting roller is not worn out-bearings also
     
  4. krukov

    krukov Member

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    You need to check PIP foil clamp, maybe clamp is holding pip weaker on front/rear side. Take it out, disassemble , clean inside and check again. Skew can be caused by 1T pressure issue, printing engine leveling, cleaning station rollers worn out/engage issue, cleaning station oil flow problem.
     
  5. michal

    michal Member

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    It's not normal that pip is touching slip ring even in the end of its life. Do you put oil under pip foil all around drum to make sure foil stay safe? If pip will touch slip ring then you will see kind or rainbow image.
    Pip clamp doesn't have any adjustment. It's good or not
     
  6. Raju

    Raju Member

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    May be you need to replace the underlayer, ITM ir sensor calibration
     
  7. krukov

    krukov Member

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    ITM IR sensor is not affecting to pip skew.
     

  8. jetscreamer

    jetscreamer Senior Member

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    Pip no longer skews, I just needed to clean out the pip clamp. All good now.
     
    Raju likes this.
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