Duotone workflow problem (Warning: includes printing with color management off)
Duotone workflow problem (Warning: includes printing with color management off)
- Subject: Duotone workflow problem (Warning: includes printing with color management off)
- From: "Richard D. Warner" <email@hidden>
- Date: Wed, 09 Mar 2016 18:40:05 -0500
- Organization: Warner Graphics, Inc.
Hello all,
A customer came in recently with a duotone JPEG image to be printed.
The image opened in Photoshop CS2 on one of our Mac workstations without
any profile mismatch complaint. Our PS Color Settings are U.S. Prepress
Defaults with its AdobeRGB (1998) editing space, and likewise our Onyx
RIP is configured to "expect" arriving files to be in the Adobe RGB
(1998) color space, although others, such a sRGB, ProPhoto RGB, etc. can
be chosen if needed.
Without regard to the image's duotone mode, I selected the desired media
in Photoshop's print dialog box and printed it from the Mac workstation
via Ethernet to our Onyx Productionhouse RIP. Where it arrived in the
RIP queue it was composed with other jobs and printed.
After the file was printed we could see that something had obviously
gone wrong, as evidenced by scum dots in the image's white border, and
less obviously in the image itself.
But it gets worse... All subsequent images printed from the
aforementioned workstation displayed the same problem. The RIP's
Preflight displayed the values of the scum dots in white borders as:
2.0% Cyan, 3.1% Magenta, and 2.4% Yellow.
I finally discovered that the duotone image had changed Photoshop's
"Output" from "No Color Management" to "Let Printer Determine Colors", a
setting that proved to be "sticky", as it was applied to all subsequent
prints. The change wasn't visible, as it was hidden under the drop-down
"Output" setting.
In my defense, I can't recall ever printing a duotone image before this
unhappy event.
Has anyone else had this occur?
Thanks,
Richard
--
Richard D. Warner
Warner Graphics, Inc.
22 Washington Street
Camden, Maine 04843
Tel (207) 236-2065
Tel (800) 875-2422
Fax (207) 230-2422
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