White image area isn't white...

Discussion in 'Color Management' started by kdw75, Nov 23, 2011.

  1. kdw75

    kdw75 Senior Member

    Joined:
    Feb 2010
    Messages:
    63
    Location:
    NW Missouri in the USA
    I have a postcard file that a customer sent us as a .JPEG. The white part of the file has a faint screen of blue, maybe 2 or 3 percent, when it is printing on any of our Postscript 3 Xerox printers. Now for the strange part. When I print it to our imagesetter the background is perfectly white. I open the JPEG in Photoshop and according to it the background is pure white.

    I have tried printing it out of Indesign and also out of Photoshop. In Indesign I drew a white box over part of the background and it came out as a white block on the Xerox printers. Finally I tried printing it to a non-Postscript inkjet printer and it too shows the faint blue screen.

    I tried turning off all the color management in Indesign and the printer driver but that had no real effect. Any suggestions?
     
  2. xfactor printing

    xfactor printing Senior Member

    Joined:
    Jan 2011
    Messages:
    647
    Location:
    united states
    Stab in the dark but is there some strange color profile embedded in the image? If you force a conversion to cmyk or even round trim to rgb and back to cmyk does the white stay 0 0 0 0 when it's cmyk again?
     
Loading...