Sometimes the use of a custom output profile in conjunction with a reference
CMYK profile, such as ISO Coated, does not result in a close enough match for some
production requirements. To more closely match a Fiery-driven printer to a CMYK reference,
an optimized Device Link profile is sometimes used
instead.
Be sure that a CMYK source profile that
simulates the reference is installed on the Fiery server.
Use Fiery Printer Profiler to calibrate and
profile the Fiery server before you create the Device Link profile.
Fiery Device Linker creates a Device Link profile and lets
you improve the match to the reference by printing sample patches and optimizing the
color match in the Device Link profile based on these
measurements. You can repeat the printing and measuring of the patch page to
progressively fine-tune the optimization with each iteration. Fiery Color Profiler
Suite supports CMYK
and multicolor (CMYK+X) output profiles for device link optimization.
If iterative optimization does not result in printed colors that more closely match the standard,
it might be for one of the following reasons:
- The printer is not performing up to its capabilities (not reaching the maximum toner or ink
densities).
- The printer is not capable of printing to the target standard even performing at its best. The
colors in the standard are out of the gamut of the printer.
-
In Fiery Color Profiler
Suite, click
Device Link.
-
Click Optimize a device link (Iterative match to a standard) and click
Next.
-
Select the Fiery server.
-
Click Create a new
device link profile, select a source profile that is associated
with the target standard (for example, ISO Coated), select the new output
profile that you created in Fiery Printer Profiler, and click Next.
-
Click Next to accept the default settings.
If you want to customize the settings, use the following guidelines.
- For rendering intent, set relative colorimetric for color production
workflows or absolute colorimetric for proofing workflows (paper
white will be simulated on the output). Set the Black
point compensation option to
Auto-detect.
- If you wish to print gray using black only to avoid color clicks for
black-and-white pages, select Preserve gray.
- The Preserve gray setting is not recommended for precise color
matching.
-
Follow the on-screen instructions to print and measure a patch page using the
spectrophotometer.
Choose the instrument to measure the patches. To measure pages, click the
measurement instrument in the Instrument menu.
Select a Patch Layout setting. Fewer patches are
faster to use, but more patches generally produce higher quality results. We
recommend 89-1617 patches.
For chart size, pick your paper size. Select a setting in the
Paper Size list for printing the measurement page
or click Custom and specify a custom page size
Click Print and configure any media settings (paper
and tray). You do not need to configure color settings as they will be
overridden.
-
When the measurement results are
displayed, click Iterate to further optimize the profile
if you are not satisfied with the results.
With each iteration, you print
a patch page using the optimization from the previous iteration and measure
the page to determine how closely the colors match the standard.
-
Continue to print and measure patch pages until
the measured Delta E values are within your desired tolerances.
If an iteration results in higher Delta E values,
delete the iteration and proceed with saving the profile.
-
Click Next to name the new profile, and then click
Next to install the profile on the Fiery server
with the associated profile settings.
-
Click
Done to close Fiery Device Linker.
If you would like to optimize the Device Link profile (such as for "re-calibration" when
color matching fails), you can perform this procedure again, selecting the same profile
to edit rather than creating a new one.
