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  1. R

    Heidelberg Prosetter74 making hair lines in halftone screens and solids

    Thanks for your reply BWI! I will have to see who is going to offer the photo-polymer plates!
  2. R

    Heidelberg Prosetter74 making hair lines in halftone screens and solids

    Photo-polymer plates. Indeed we have considered photo-polymer plates on our Prosetter 74. However, we would have to sort out the plate bending system of our rotary presses for business forms printing. Business Forms Plate BendingThe plate bending system can cut the polymer plates so we would...
  3. R

    Heidelberg Prosetter74 making hair lines in halftone screens and solids

    ¡New findings! The damned machine is not producing the hairlines any more on 24 X 52 cm plate. I have yet to see a 52 X 74 plate. We have yet to perform a HD defragmentation.
  4. R

    Heidelberg Prosetter74 making hair lines in halftone screens and solids

    Hi, what you are saying applies to the P3C2 card called interface card between the Metashooter and the Plate Recorder and/or the P-Image card which makes the image on the plate! How frustrating this diagnosis has been! On top of that is trying to extend the life of a machine at the end of its...
  5. R

    Heidelberg Prosetter74 making hair lines in halftone screens and solids

    VladCanada: I do not understand what fast and slow scan is. The hairline marks are in the same direction of the rotation of the laser. They are perpendicular to the image on the AROUND side of the plate. If a plate is 52 X 72 the marks are perpendicular to the 72 cm base and parallel to the...
  6. R

    Heidelberg Prosetter74 making hair lines in halftone screens and solids

    Ricardo: It seems that the hairlines accompany the image. They do happen in the same place in the same plate size: The C, M, Y, K plates have the hairlines in the same place. But when we change plate sizes, the hair lines change position: If we put the GTOF 52 plate on top of the Speedmaster...
  7. R

    Heidelberg Prosetter74 making hair lines in halftone screens and solids

    Hi Ricardo: Yes i will be available a 4:00 PM EST! By the way all the updates to the software were made, etc. We considered the new power supply as part of the culprits as the laser is beaming to cause these lines, perhaps it is some stray current out of the capacitors, but we cannot test...
  8. R

    Heidelberg Prosetter74 making hair lines in halftone screens and solids

    The Heidelberg dealer in Costa Rica has not been able to pinpoint the culprits of our Heidelberg Prosetter 74 making hair lines in both halftones and solids. These hairlines appear in different parts of the plate pointing to a mechanical failure, as they repeat at the beginning of the plate and...

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