Creased sheets rear edge operator side

Discussion in '1-Color and 2-Color Offset Presses' started by stuart72, Jan 10, 2012.

  1. stuart72

    stuart72 New Member

    Joined:
    Dec 2011
    Messages:
    1
    Location:
    glasgow
    Hi, Wondering if anyone can help??
    We have 2 Heildelberg Presses Cd74 & XL75, on both presses we occasionally come across creased sheets on the operator side only & only at the rear of sheet see attached picture. Any help on this matter would be greatly appreciated, Thanks.
     

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  2. Meny

    Meny Senior Member

    Joined:
    Apr 2008
    Messages:
    773
    Location:
    Israel
    If your grippers are set right , i would say you should look at the air blowers on the transfers
     
  3. spike

    spike Senior Member

    Joined:
    Apr 2011
    Messages:
    139
    Location:
    new york
    it looks like it may be getting hung up in delivery because all the colors are printed on the color bars
    check that your slowdowns are working or the blowdown bars
     

  4. Data

    Data Senior Member

    Joined:
    Jun 2010
    Messages:
    121
    Location:
    uk
    If the creased sheets aint in the pile (damaged stock) then i'd look at something catching the sheet mid unit.

    As the sheet Isnt printed correctly to me and tell the photographer not to give up his day job
     
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