EFI Color Tech Brief: The Magic of Black with Fiery Color Profiler Suite

Transcription

EFI Color Tech Brief:
The Magic of Black with Fiery Color Profiler Suite
Introduction
As digital press owners increase their expectations for color quality and want to validate printed output
against industry standards, such as Fogra and ISO, they need guidance on how to achieve the best results with Fiery® color tools and Fiery Color Profiler Suite. Toner-based digital print systems typically ship
with default ICC profiles designed to optimize smoothness in light areas where tone reproduction has
historically been better on conventional presses. However, in order to achieve better color accuracy and
validate against ISO standards, correctly configuring the black and other profile settings is critical when
creating output profiles and configuring Fiery color settings.
This tech brief describes the best practices for configuring Fiery color settings and using Color Profiler
Suite to make profiles that validate against industry standard such as Fogra and ISO. Applying high levels
of gray-component replacement (GCR) is useful for achieving better grays, getting better precision to
validate against ISO standards, and achieving expanded gamut on the output.
Several competing color-profiling tools have been attracting customer attention in the market by promising better precision mostly using device link profiles (DLPs). However, none of these tools are as easy
to use as tools that are integrated with a Fiery print server — for both novice and expert users. Profiles
made with Color Profiler Suite match Fogra standards with better image appearance than any of these
competitors. Fiery Color Profiler Suite, at $3,400 MSRP for the full package with unlimited profiling, is the
least costly and most efficient way for customers to achieve the desired color results and to match ISO
standards in their ongoing print operations.
Background
To understand why additional training is necessary to achieve “true black” in an ICC profile that enables
validation of printed output against ISO standards, it is important to review how users have traditionally
generated black.
Black generation in ICC profiles is modeled on how black separations were generated when making films
using an analog process camera or a trade scanner. Historically, black was made as a camera black separation using a salmon-colored filter. The other color separations were captured with red, green and blue
filters to generate CMY separations. These separations originally had full-range blacks with black halftone
dots present throughout the tone scale, including in the highlights. With the advent of digital trade scanners for making separations and printing processes that did not require a dot to be present throughout
the tone scale for proper press operation, black generation moved to the use of a “skeletal black.”
© 2013 Electronics For Imaging, Inc.
In a skeletal black separation, black use is minimized in highlight regions so that it can be used to maximize contrast in the mid- to three-quarter-tones. The human eye is most critical of the light areas of
an image and, for this reason, most of the contrast range of the three colors is used in these areas to
maximize contrast. This results in the three colors becoming flat in the shadow regions. Black can then be
used to restore contrast.
Scanner color computers and some modern color separation techniques allow the optional use of under-color removal (UCR) and/or gray-component replacement (GCR). UCR reduces the amount of color
ink (or toner) in neutral shadows. GCR uses black to replace color inks or toners in saturated colors to
potentially minimize ink/toner consumption and to achieve better stability in the printing process.
Color Profiler Suite Controls for the Black Channel
Black channel control is the most important part of how color separations are made, whether the profile
is for a digital or conventional press. Fiery Color Profiler Suite offers a full range of controls to shape the
black separation channel and to enable special features such as UCR and GCR.
Color Profiler Suite gives the user maximum control over black generation settings with more sophisticated tools than competing profiling solutions developed originally for the offset market. Color Profiler Suite
can make excellent profiles for conventional printing systems, but also has refined tools for specific toner
engine behaviors. No competing solution offers as wide a range of black generation controls as Color
Profiler Suite.
How to Optimize Black Generation in Color Profiler Suite Profiles
The Fiery Calibrator Wizard, available in Fiery System 10 and later, is designed for novices to easily make
high-quality profiles by accessing Color Profiler Suite directly from Fiery Calibrator. However, to access
and configure the expert black controls, users need to make a profile with optimized black settings. For
this, use the Printer Profiler feature in the full version of Color Profiler Suite rather than the calibration
wizard.
Refer to the diagram on page 5 for general steps required to create color profiles used for certification.
Before making a custom profile in Color Profiler Suite, users should create a custom Calibration Set for
the paper to be profiled. To begin this process, start with the procedure for the specific Fiery software
version as shown here:
•
For Fiery System 10 and later, follow the steps in Appendix A.
•
For Fiery System 9 Release 2 and older, follow the steps in Appendix B.
Then follow the steps in Appendix C for all Fiery systems to create a custom ICC output profile without
a calibration target, and to add the calibration target when importing the profile to the Fiery print server.
2
Optimizing Color Matching with a Device Link Profile
In general, the color management tools that compete with Color Profiler Suite require users to create device link profiles (DLPs) to validate against ISO standards. This is a more time-consuming technique that
requires multiple measurements and iterated refinements of the DLP. However, EFI™ technology does
not require users to create a DLP to match and certify against any standard. EFI has a large number of
Fogra certifications and more IDEAlliance digital press certification than any digital front end in the world,
all achieved only with Fiery Color Profiler Suite without using DLPs. Color Profiler Suite does offer similar
DLP tools and some additional functions in the Device Linker for matching G7 tolerances, but DLP’s are
typically not required for any validation. Users who want to achieve closer colorimetric matching to an
appearance standard such as ISO Coated Fogra 39 or G7 tonality and gray balance may choose to use the
Color Profiler Suite Device Linker.
If a DLP is required, Color Profiler Suite simplifies the creation process since users can create and update
the device link profiles directly on the Fiery print server. This means users do not need to change color
settings for jobs that use these profiles as the DLPs are updated. By comparison, it is complicated, time
consuming and easy to make mistakes when creating and using DLPs from third-party tools and workflows because users must manually edit Job Properties so that legacy jobs can leverage updated DLPs.
See Appendix D for how to make a DLP with Color Profiler Suite and use it on a Fiery print server.
Comparisons with Competitive Products
Consider these aspects of competing color management tools when evaluating their use for profiling the
Fiery print server and validating against ISO standards:
•
Competing tools have no expert knowledge built into them about how various toners or inks
combine on specific print engines – leaving the user to guess how the colorants will combine on
a particular printer and how to configure black settings to accommodate this. Color Profiler Suite
allows users to load a factory profile that EFI experts have optimized for the particular printer.
Using these profiles eliminates the guesswork by providing an easy starting point to create a
custom profile for a particular media.
•
Competing color management tools are not integrated with the Fiery print server, so the user
must be trained to manually print patch sets correctly, load custom profiles and keep track of jobs
and workflows that use each profile over time. Using Color Profiler Suite saves time, confusion
and errors in the profiling process.
•
Competitive tools are either very costly (U.S. $10,000 and up) or are priced based on toner savings — which the software itself calculates, instead of using a true measurement. Manufacturers
have no independent, verifiable way to predict the long-term cost or value of the solution and, for
this reason, business models based on toner savings are likely not viable.
•
Unlike competitive tools that rely on DLPs, EFI does not require users to create a DLP to match
and certify against any world standards. EFI Fiery print servers have achieved a large number of
Fogra and IDEAlliance certifications with a simple output profile created from Color Profiler Suite
Printer Profiler. For details, please review the Application Data Sheet (ADS) for print systems
certified by IDEAlliance at http://www.idealliance.org/press-cert.
3
Summary
Using Fiery Color Profiler Suite is the least costly and most efficient way for customers to achieve desired
color results and match industry standards, such as ISO, in their ongoing print operations.
•
Color Profiler Suite is bundled with many production-level Fiery print systems, so customers do
not need to invest in additional color-matching tools.
•
Color Profiler Suite “Maximum GCR” profiles deliver better print appearance than competitive
products.
•
Fiery partners and dealers find that it is more profitable to deliver an integrated and bundled color
management solution, leveraging partner professional services or EFI Tier-1 support, and sell a
loyal customer more print systems over time. Trying to up-sell the customer an expensive alternative to Color Profiler Suite has the risk that the customer will fail to achieve the desired color
results over time and choose another vendor for their next press purchase.
•
In real-world printing operations, color management is still not “one-button easy.” However, Color
Profiler Suite integrated to Fiery servers and combined with EFI Fiery Global University training,
how-to documents, read-me files, Fiery Forum feedback, Fiery Dashboard, and bundled EFI Tier-1
tech support provides the product experience and instructions necessary to create and maintain
custom printer profiles and verify color precision against ISO standards.
4
Matching Industry Color Standards
with Color Profiler Suite
This diagram provides an overview of the steps required to create custom calibration sets
and output profiles on various Fiery systems.
Fiery System 10 and later
Fiery System 9 Release 2 and older
See Appendix A for step by step instructions.
See Appendix B for step by step instructions.
•
•
Create new calibration set via the wizard.
Use Fiery Calibrator. Follow steps 1 to 18 of the
wizard on the Fiery server before exiting.
•
When saving a calibration set, a duplicate output proflle will be created that may be used to
select the new calibration set.
Exit the calibration wizard at this point. Do NOT
allow the wizard to create an output profile at this
point or you will not have access to the profile
settings.
Create new calibration set.
Use Fiery Calibrator. Choose an exiting calibration
set as a starting point and an ouput proifle which
will be duplicated to create a placeholder profile
that can be used to select the new calibration set.
•
Record Dmax values.
In Calibrator, record the “measured” values, not
the “target” values.
•
Apply and save new calibration set.
•
Enter the Dmax values from Calibrator into
the temporary output profile that includes the
name of the calibration set just saved.
•
Apply and save the profile.
See Appendix C for step by step instructions.
•
Load the temporary output profile linked to the the custom calibration set as the server
default.
•
Disable the option “Use Media Defined Profiles” if available in expert color settings, to
ensure that the temporary profile remains selected when printing.
•
Create a custom output profile in Color Profiler Suite Printer Profiler with “Use Current
Calibration” in Color Profiler Suite if the option is offered when starting.
•
For Profile settings, choose a factory default profile for a paper similar to the one being
profiled. Choose “Optimize Colorimetric Precision” and “Maximum GCR” options.
•
Create a new output profile with custom black settings and when saving, link it to the new
calibration set.
•
Configure color settings on the Fiery server to use the new profile.
•
Optional: Use Color Profiler Suite Verify module for verification. Procedures for
verification are at help.efi.com/cps in the User Guide.
•
Optional: See Appendix D to create a device link to achieve precise colorimetric matching.
5
Appendix - A. System 10 and Later
Best-practice Procedure for Calibrating Before Profiling – System 10 and Later
Before you start:
1. Make sure that the printer has been properly serviced.
2. Perform any other recommended procedures for preparing the printer, such as engine linearization steps, for example shading correction and gradation adjustment.
3. On your computer, make sure that Command WorkStation® and Color Profiler Suite are installed
and are up to date.
4. Have an adequate amount of the paper that you will profile, at least 100 sheets. For best results,
use a paper size that is A3, tabloid or larger.
5. Load the paper in the printer. If your normal printing workflow includes selecting the paper
through Paper Catalog, configure a Paper Catalog entry for the paper.
Create a Custom Calibration Setting and Output Profile
1. Warm up the printer using the paper to be profiled. A good way to warm up the printer is to print
at least 20 copies of a job that requires substantial amounts of all toners.
2. In Command WorkStation, go to Device Center > General > Tools and click Preferences under
Calibrator.
3. For calibration measurement method, select ES-2000 or your preferred measuring device. Under
Settings, configure ES-2000 for “M0 mode.” For more information about M0 mode please see:
http://w3.efi.com/~/media/Files/EFI/Fiery/CPS/Fiery_CPS4_ES2000_FAQ_LTR_US.pdf.
Note: In general, the measurement mode (M0, M1, M2) does not matter for Fiery calibration.
4. For calibration patch layout, select “21 Sorted Patches” for letter or A4 paper, or “34 Sorted
Patches” for tabloid or A3 paper.
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5. Click Save.
6. In Device Center > General > Tools, click Manage under Calibrate. A list of the calibration settings
on the Fiery print server appears.
7. Click Create New, select a calibration set and click OK. Select the calibration setting that best
matches your paper. If no existing calibration setting matches your paper, select “Server default.”
8. Click OK.
9. Type a new name for the calibration setting. Use a name that describes the paper name, weight,
and type plus any other specific printing conditions (for example, halftone or gloss settings).
10. For Recommended Paper, type the name of your paper. For Paper Reorder Number, type the
product ID number for your paper if desired. This information can usually be found on the paper
packaging.
7
11. Optionally, type information in the Comments field. This can be additional descriptive information.
This information appears in the list of calibration settings available on the Fiery print server.
12. Click on Properties to set the Job Properties that will be used with the custom calibration.
a. Do not select any settings (such as scaling, rotation, or finishing options) that will make your
calibration page un-measurable.
b. Set the number of copies to at least five to warm up the printer.
c. On the Media tab, set the paper type for the paper to be profiled, or load from Paper Catalog.
d. Set the halftone screen and resolution, if available, to be used for the calibration set and
profile on the Image tab.
8
e. After configuring Properties click OK to continue.
Note: The screen and other print settings such as resolution on the Image tab are specific to this calibration set. For best results, create a different calibration set for each combination of print settings that will
be used. Settings in the Color tab of the Job Properties window are ignored when printing the calibration
page.
13. Click Continue.
14. Select the Paper Source for printing the calibration page.
15. Confirm the Measurement Method matches the device that will be used for the calibration.
16. Be sure the correct paper is loaded. Click Continue to print the calibration page and proceed to
the next step.
17. Follow the on-screen instructions to measure the calibration page. For best results, back the
calibration sheet with five blank sheets of the same paper type when measuring the calibration
patches. After you complete the measurements, the new calibration setting is created. The calibration setting must be associated with an output profile in order to be used to print a job.
18. When the Create New Profile button appears, do not click on it. Instead, click OK.
9
19. Click Close to exit the calibrator.
20. In Command WorkStation Device Center, go to Color Setup.
21. Make a note of the settings. You can restore the current server default color settings after you are
finished.
22. For default output profile, select the profile that links to the new calibration set (it will have the
same name as the new calibration set). Check that the new calibration set is shown at the right
under Calibration.
23. Set Gray and Black for CMYK to Off.
24. Click on Expert Settings in the upper right-hand corner of the Color Setup window.
25. Click on the Output tab.
26. If the option “Use media defined profiles if available” is displayed, disable it. On some Fiery
servers this setting may not be present.
10
27. Click OK, and click Apply to save the settings. The custom profile becomes the default output
profile.
28. Go to the procedure “Create a Custom ICC Output Profile Using the New Calibration Set” in
Appendix C of this Tech Brief.
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Appendix - B. System 9 Release 2 and Older
Best-practice Procedure for Calibrating Before Profiling – System 9 Release 2 and Older
Before you start:
1. Make sure that the printer has been properly serviced.
2. Perform any other recommended procedures for preparing the printer, such as engine linearization steps, for example shading correction and gradation adjustment.
3. Perform any other recommended procedures for preparing the printer, such as shading correction
and gradation adjustment.
4. On your computer, make sure that Command WorkStation and Color Profiler Suite are installed
and are up to date.
5. Have an adequate amount of the paper that you will profile, at least 100 sheets. For best results,
use a paper size that is A3, tabloid, or larger.
6. Load the paper in the printer. If your normal printing workflow includes selecting the paper
through Paper Catalog, configure a Paper Catalog entry for the paper.
Create a Custom Calibration Setting and Output Profile
1. Warm up the printer using the paper that you will profile. A good way to warm up the printer is to
print at least 20 copies of a job that requires substantial amounts of all toners.
2. In Command WorkStation, choose the server. In the Job Center, select Calibrate. Calibrator starts
in a separate window.
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3. For “Measurement Method,” select ES-1000. Use the ES-1000 or the newer ES-2000 which
operates in the compatibility mode with older Fiery servers to emulate an ES-1000.
4. For calibration set, select “Manage” from the Media Setting. If the “Manage” option is not
available, the Fiery server does not support custom calibration settings. Calibrate the Fiery with
plain paper then load the custom paper and proceed with “Create a Custom ICC Output Profile
Using the New Custom Calibration Set” in Appendix C of this Tech Brief.
5. Choose a calibration set from the list for a paper similar to the paper about to be profiled. For
example, choose a coated calibration set when creating a custom calibration set for a coated
paper. Type a new Recommended Paper description. Click Save.
13
6. Give a name for the new calibration set and choose an output profile. This can be any profile in
the Fiery server.
7. Click OK, then proceed to the next section to print and measure the calibration page.
Note: A copy of the selected output profile is created and associated with the new calibration set. The
copy has the name of the calibration set appended to it. This “placeholder” profile can be deleted later
after it is used to choose the new calibration set for purposes of printing profiling paths through this calibration set.
14
To Print and Measure the Calibration Page
1. In Calibrator, select the calibration set.
2. Print the calibration page using the paper to be profiled. When printing the patch page, set the
patch layout to “34 Sorted Patches” if the paper size is A3, tabloid, or larger. Otherwise choose
“21 Sorted Patches.” Select the paper tray containing the paper. If available, set the number of
copies to 15.
3. Click on Measure and follow the on-screen instructions to measure the calibration patches.
Measure the next-to-last page printed. The extra copies were printed in order to warm up the
printer further.
4. Click Apply to save the measurements.
15
Edit the D-Max values from Calibration into the Temporary Output Profile
1. In Calibrator, select “Expert” mode.
2. Make sure the new calibration set is selected.
3. Under View Measurements (Optional), choose “Measurements vs. Target” and click View.
4. Write down the measured D-Max values for C, M, Y and K, from the first column and then click
Done twice to exit Calibrator. Be sure to note the measured (Meas) values, not the target (Targ)
values.
5. In Command WorkStation, Device Center, go to Resources > Profiles and expand Output Profiles.
16
6. Right-click on the copy of the output profile that is linked to the new calibration set (it has the
name of the calibration set appended to its name) and select “Edit With > Color Editor.” This
“placeholder” profile will be used to hold the D-Max values for the new calibration set so that
they are used when printing the profiling patches.
7. Click on the % Density tab to view the current D-Max values in the placeholder profile.
8. Change the D-Max values to the values recorded in step 4 of this section.
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9. Click Save, leave the current name, and click Save again to save the edited profile.
10. Click Close to exit Color Editor.
11. In Command WorkStation Device Center, go to Color Setup to see the Basic Settings.
12. Make a note of the settings. You can restore the current server default color settings after you are
finished.
13. For Default Output Profile, select the profile just edited that links to the new calibration set.
Check that the new calibration set is shown to the right under Calibration.
14. Set Gray and Black for CMYK to Off.
15. Go to Expert Settings, and select the Output tab.
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16. If the option “Use media defined profiles if available” is displayed, disable it.
17. Click OK, and click Apply to save the settings. The custom profile becomes the default output
profile.
18. Go to the procedure “Create a Custom ICC Output Profile Using the New Custom Calibration Set” in Appendix C of this Tech Brief.
19
Appendix - C. Create a Custom ICC Output Profile
Create a Custom ICC Output Profile Using the New Custom Calibration Set
1. Launch Color Profiler Suite, click Printer to start Printer Profiler, and then click Print Patches.
2. In the Welcome screen, select “Select Fiery Server” and then click the “+” button. The Fiery
print server must be connected to the network.
3. Enter the name of the Fiery server then click OK.
4. Click Next. A Calibration setup window appears. Choose “Use current calibration” if the option is
offered. Click Next.
20
5. In the Print Settings screen, choose the instrument that will be used for measuring, and a patch
layout of at least 928 patches. Set the page size for the paper, set number of sets to 2, and click
Next. This will allow the patch pages to be measured twice so that averaged measurements can
be used for the profiling process.
6. Click Save to save the profiling patches.
7. In the Job Properties settings inside Fiery Printer Profiler, set the number of copies to at least 15
to warm up the engine, select the media / tray settings appropriate for the paper, configure the
same image settings (halftone screen and resolution) that were selected for creating the calibration set, and click Print. Do not change any color settings in Job Properties when printing profiling
pages.
8. Measure the measurement page(s) and save the measurements. For best results, measure the
last set of pages printed and also one that was printed several sets before it (for example, the
twelfth and the fifteenth sets) and average these together in Color Profiler Suite.
9. In the Summary screen, check the “Average Measured Variation” and the “Maximum Measured
Variation.” The average should be no more than 3 ∆E. The maximum should be no more than 5
∆E. If the values are acceptable, click Next. If these values are too high:
a.
Click Back, go into the Average Measurements, delete one of the measurement sets, and then click Next. Check the values again. It may be necessary to re-add one measurement
set and eliminate another to determine which measurement set is bad and should be excluded.
21
b.
Consider re-measuring. To do this, quit Printer Profiler and start again with
“Measure Profiling Patches” from Printer Profiler and complete the rest of this procedure.
10. In the Apply Settings screen, in the drop-down menu for Settings, choose an existing factory
output profile (with a suffix such as v1F) for a paper like the one being profiled. For example, if
profiling a coated paper, choose the factory default output profile for coated paper as a starting
print.
11. In the Apply Settings window, set the option “Optimize colorimetric precision” and “Maximum
GCR.” Click Next.
22
12. In the Save Profile screen, click Install on Fiery Server and make sure that the Fiery print server is
selected. Click Next.
13. It will take a few seconds while the profile is created.
14. The Profile Settings window appears next. If the Media Type option appears, do not assign the
profile to any media at this time since the media type for use by the Use Media Defined Profiles
feature can be set later in Device Center.
15. Under Calibration, make sure that the calibration set is selected and click OK. Other settings,
such as media to associate with the new profile, are optional. The custom output profile is
installed on the Fiery print server and associated with the specified calibration set.
16. Click Done to exit Printer Profiler.
The new output profile now has the correct calibration target associated with it. Delete the temporary
default output profile from the Fiery print server.
To Delete the Temporary Default Output Profile
1. In Device Center, go to Resources > Profiles.
2. Select the temporary output profile and click Delete.
3. Click Yes.
This completes the process of creating a custom output profile without a calibration target and adding
the calibration target when importing the profile to the Fiery print server.
23
Appendix - C. Configuring Fiery Color Settings
Configuring Fiery Color Settings to Use the New Profile
In order to validate printed output against industry standards, such as ISO, and optimize the reproduction
of neutrals with the custom profile created above, configure specific color settings on the Fiery print
server as described below.
1. To start, launch Fiery Command WorkStation and connect to the Fiery print server.
2. Go to Device Center > Color Setup.
3. Click on Basic Settings in the Color Setup tab.
a.
Set CMYK Source to “ISO Coated FOGRA39L” to match Fogra 39 standard for Europe or Asia, or “SWOP2006” to match IDEAlliance ISO standard in the U.S.
b.
Set the CMYK processing method to “Full (output GCR).”
c.
For Gray and Black, set the CMYK gray setting to “Off” to disable special black preservation for images. This setting must be disabled in order to pass certifications.
d.
Set the Output Profile to the custom ICC profile just created in Color Profiler Suite.
e.
Check to see that the calibration set loads with the custom profile.
f.
Click the Expert Settings button at the upper right of the Basic Color Settings window.
24
Appendix - C. Configuring Fiery Color Settings
g.
For a verification print using a standard control bar, enable “Simulate Paper White” on expert
color settings. This will allow that job in Job Center to match an appearance-matching stan
dard such as ISO Coated v.2 if the white point of paper profiled does not have the same white point as the standard. This option is only available with Fiery Graphic Arts Package, Premium Edition installed on the Fiery server.
Note: Enabling Simulate Paper White will result in a print that has dots in the non-image paper white areas if the paper being profiled does not have the same white point as the standard to be matched. While
such a print may measure successfully for certification, customers will be more satisfied with production
print jobs that use a paper with the same white point as the standard, thereby avoiding the paper simulation dots. Another option is to loosen the tolerance for paper white matching in the verification software.
h.
i.
Go to the Output tab and make sure “Use media-defined profiles if available” is disabled. Otherwise, the media-defined profile for the paper type will be used instead of the new custom profile selected in Step D above.
Save the server defaults by clicking OK.
25
Appendix - D. Make a Device Link Profile
Make a Device Link Profile with Color Profiler Suite
To make a DLP with Color Profiler Suite and use it on a Fiery print server is easy.
1. Launch Device Link from the Color Profiler Suite launch pad and choose “Optimize a device link.”
2. Click Next and select the Fiery print server. Set the source profile to the profile for the desired
industry standard to be matched (such as ISO Coated v2), then set the destination profile to the
custom profile created using the procedures described above and click Next.
3. Set the Rendering Intent to “Relative Colorimetric” and use default Separation Options. To use a
paper white simulation when the paper profiled does not match the white point of the standard,
choose the “Absolute Colorimetric” setting instead. Remember, this means there will be printed
dots in non-image areas, and may not meet appearance standards of production print buyers.
Making the DLP with the Relative Colorimetric setting will eliminate this problem.
26
Appendix - D. Make a Device Link Profile
4. Click Next. Choose the instrument, patch layout and paper size. The 928 patch target is often
precise enough for DLP iteration.
5. Click Next. Now print, measure and optimize until ∆Es are acceptable. Remember to keep resolution and halftone screen settings the same for every iteration print.
6. The last step is to save this new DLP, set it as the server default and attempt verification again.
27
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© 2013 Electronics For Imaging
9-20-2013

EFI Color Tech Brief: The Magic of Black with Fiery Color Profiler Suite

Transcription

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