0 Replies Latest reply on Aug 21, 2014 9:08 AM by Adam Orcutt

    Unanticipated Color Results when printing with PostScript Drivers from Lightroom In Mac Environment

    Adam Orcutt Level 1

      Printing Environment: Printing from Lightroom 5 and Adobe Photoshop CC from Macintosh OS 10.9 to PostScript driver printers.

       

      We are experiencing unanticipated color results (contrasty and vibrant color or, as we like to refer to it around here, “80’s Color”) when printing from Lightroom using the our EFI ColorProof XF RIP(Canon IPF6300) our EFI Fiery Command Workstation (Canon IR-ADVC5035).

       

      We have tested the following scenarios with the following results:

       

      Print from Lightroom via ColorProof XF2 PS Driver or the Canon iR-ADV C5000s-B1 PS Driver from Windows 7 environment; color results are as expected.

      Print from Lightroom via ColorProof XF2 PS Driver or the Canon iR-ADV C5000s-B1 PS Driver from Mac OS 10.9 environment; color results ARE NOT as expected.

      Print from Lightroom directly to printer using native Canon GARO Driver from Mac OS 10.9 environment; color results are as expected.

      Print from Photoshop via ColorProof XF2 PS Driver or the Canon iR-ADV C5000s-B1 PS Driver from Mac OS 10.9 environment; color results are as expected.

       

      From these results, we deduced that the problem must be from the PS file that Lightroom is generating. Comparing the PS file generated in Adobe Photoshop and Lightroom, we found the following:

       

      Lightroom (Mac OS 10.9):

      After sending a file to print, Lightroom uses cgpdftops (via Apple core services, i believe) to create the PostScript file.

      The PPD then specifies the filter for the mime type, which is basically to use PStoPS and doesn’t modify the file further.

      The job is then sent on to the server, where it is held/released to EFI ColorProof XF or Fiery Command Workstation.

       

      Photoshop:

      After sending a print, Photoshop does not use cgpdftops to create the postscript file and;

      The ppd then specifies the filter for the mime type, which is basically to use PStoPS and doesn’t modify the file further

      The job is then sent on to the server, where it is held/released to EFI ColorProof XF or Fiery Command Workstation.

       

      Our conclusion is that Lightroom initially uses the cgpdftops filter to convert to postscript, and Adobe Photoshop does not add this this step to the process, and the results are continuous “80’s Color” when printing from Lightroom.

       

      Our environment dictates that we must be able to us Adobe Lightroom for printing, so any solution that simply bypasses printing from Lightroom and uses Photoshop is not acceptable in our scenario.

       

      We are reaching out to Adobe and Apple for any answers they may be able to provide, but any insight anyone has into this issue is greatly appreciated.

       

      Best,

       

      -Adam