Xerox Fiery EX700i Color Printing

EX700i Print Server/Integrated Fiery Color Server
Color Printing
© 2011 Electronics For Imaging, Inc. The information in this publication is covered under Legal Notices for this product.
45099437 22 June 2011
CONTENTS
CONTENTS
INTRODUCTION 7
About this document 7
Terminology and conventions 8
Key features of ColorWise 9
Color management in Command WorkStation 10
COLORWISE PRINT OPTIONS 12
About this chapter 12
Managing color on the EX700i 13
Descriptions of ColorWise print options 14
Auto Trapping 14
Black Detection 15
Black Overprint 15
Black Text and Graphics 16
CMYK/Grayscale Processing Method 18
CMYK/Grayscale Source or Device Link 19
Combine Separations 20
Composite Overprint 21
Gray (RGB) and Gray (CMYK) 22
Optimize RGB Transparency 22
Output Profile 23
Paper Simulation 23
PDF/X Output Intent 24
RGB/Lab Rendering Intent 25
RGB Source or Device Link 26
Separate RGB/Lab to CMYK Source 27
Spot Color Matching 28
Substitute Colors 29
Use Embedded Profile If Present (RGB and CMYK) 29
Specifying ColorWise print options 30
Setting default values in Command WorkStation 32
Setting print options in the printer driver 33
COLOR PROFILES 36
Color files 36
Installing additional ICC profiles on your computer 37
Other color files 42
Profile Manager in Command WorkStation 45
CALIBRATION 46
Calibration methods 46
Checking calibration status 47
Calibrating in Command WorkStation 48
Calibrating with ColorCal in Command WorkStation 49
Calibrating from the digital press touch panel 50
Managing calibration settings 52
Output profiles and calibration settings 52
Finding recommended paper and print settings 53
Custom calibration settings 54
Custom calibration settings and output profiles 54
Calibration and halftone screens 55
Understanding calibration 56
How calibration works 56
When to calibrate 57
SPOT-ON 58
Substitute Colors and Two-Color Print Mapping 58
How Spot-On works 58
Where to find Spot-On 59
Monitor settings with Spot-On 60
AUTO TRAPPING CUSTOMIZATION 61
Printing with Auto Trapping 62
Auto Trapping customization 63
IMAGEVIEWER 64
Accessing ImageViewer 65
IMAGE ENHANCE VISUAL EDITOR 67
Accessing IEVE 68
IEVE and Image Enhance print option 69
CONTROL BAR 70
Printing with a Control Bar 70
Custom Control Bar 72
PAPER SIMULATION WHITE POINT EDITING 73
Printing with Paper Simulation 74
Paper Simulation White Point editing 75
POSTFLIGHT 76
About Postflight 77
Postflight Test Page 77
Postflight Color-Coded pages 77
Postflight reports 78
Understanding Postflight reports 78
Postflight print option 79
Postflight examples 80
Scenario 1: Diagnose an unexpected color 81
Scenario 2: Check the calibration status 83
Scenario 3: Check the quality of the output profile 84
Scenario 4: Diagnose a color problem of a specific object 85
INDEX 87

INTRODUCTION

About this document

This document explains how to manage color output on the EX700i Print Server/Integrated Fiery Color Server and provides information about calibration and color profiles.
This document is part of a set that includes documentation for users and system administrators. For a complete description of your EX700i Print Server/Integrated Fiery Color Server, see the other documents available at your site.
For more information about supported operating systems and system requirements, see
Welcom e.
This document is organized to supply you with key information about managing the color output of your EX700i Print Server/Integrated Fiery Color Server. To manage color in general, you use Command WorkStation. You can also manage color for a specific job by setting print options in the printer driver or in the job properties in Command WorkStation and Hot Folders.
This document covers the following topics:
• Setting values for ColorWise print options.
• Managing color profiles and other color files.
• Calibrating the EX700i Print Server/Integrated Fiery Color Server to achieve consistent color output.
• Using the Spot-On spot color editor in Command WorkStation.
• Configuring Auto Trapping in Command WorkStation. This feature is available with the Fiery Graphic Arts Package, Premium Edition option on the EX700i Print Server and is part of the Productivity Package option on the Integrated Fiery Color Server.
• Using ImageViewer in Command WorkStation. This feature is available with the Fiery Graphic Arts Package, Premium Edition option on the EX700i Print Server and is part of the Productivity Package option on the Integrated Fiery Color Server.
• Using Image Enhance Visual Editor (IEVE) in Command WorkStation. This feature is standard on the EX700i Print Server and is part of the Productivity Package option on the Integrated Fiery Color Server.
• Using the Control Bar feature in Command WorkStation. This feature is available with the Fiery Graphic Arts Package, Premium Edition option on the EX700i Print Server and is part of the Productivity Package option on the Integrated Fiery Color Server.
• Using the Paper Simulation print option with white point editing in Command WorkStation. This feature is available with the Fiery Graphic Arts Package, Premium Edition option on the EX700i Print Server and is part of the Productivity Package option on the Integrated Fiery Color Server.
• Using the Postflight print option. This feature is available with the Fiery Graphic Arts Package, Premium Edition option on the EX700i Print Server and is part of the Productivity Package option on the Integrated Fiery Color Server.
NOTE: For more information about the Fiery Graphic Arts Package, see Fiery Graphic Arts
Package.
NOTE: The Glossary in the Fiery Color Reference defines words in bold, for example, output
profile, that appear throughout this document. Color terms and concepts, such as “color
space,” “spot color,” “gamut,” and “source profile,” are used throughout this document. If you are new to desktop color, or if any terms are unfamiliar, see the Fiery Color Reference.

Terminology and conventions

This document uses the following terminology and conventions.
Term or convention Refers to
Aero EX700i (in illustrations and examples)
Digital press Xerox 700 Digital Color Press
EX700i EX700i Print Server/Integrated Fiery Color Server
Titles in italics Other documents in this set
Windows Microsoft Windows XP, Windows Vista,
Windows Server 2003/2008/2008 R2, Windows 7
Topics for which additional information is available by starting Help in the software
Tips and information
A warning concerning operations that may lead to death or injury to persons if not performed correctly. To use the equipment safely, always pay attention to these warnings.
A caution concerning operations that may lead to injury to persons if not performed correctly. To use the equipment safely, always pay attention to these cautions.
Operational requirements and restrictions. Be sure to read these items carefully to operate the equipment correctly, and avoid damage to the equipment or property.

Key features of ColorWise

ColorWise is the color management system (CMS) built into the EX700i and designed to
provide both casual and expert users with the best color output for a variety of purposes. The ColorWise default settings provide high-quality, out-of-box color from many Windows and Mac OS applications. This allows casual users to achieve quality output without knowing about or changing any color settings on the EX700i. ColorWise also allows expert users to obtain the best color output.
ColorWise features allow you to modify printing results. Depending on your particular needs, you can:
• Set the behavior of CMYK printing to emulate offset press standards.
• Match PANTONE and other spot colors for the best match when printing using four-color press conditions or presses with extra, custom plates.
• Select a rendering intent for RGB printing. Rendering intents allow for rich, saturated printing of presentation graphics, smooth, accurate printing of photographs, and relative or absolute colorimetric rendering for specialized needs.
• Define the source of incoming RGB color data for better color conversion of RGB data with no source information.
• Determine whether RGB data is converted into the full gamut of the digital press or is first converted into the gamut of another device, such as a press standard. This feature is useful for making one device behave like another for RGB data. It also allows you to evaluate the appearance of an RGB file under different printing conditions without having to convert the RGB file to CMYK first.
ColorWise color management (ColorWise) offers an open color architecture, allowing
users to customize the EX700i to meet new printing needs as they arise. ColorWise supports
ICC profiles, which are industry standard color profiles that describe the color behavior of a
device. Note that ICC specification version 4 profiles (profile version 4.2.0.0) are supported as well as version 2. Downloading ICC profiles to the EX700i enables the EX700i to simulate a custom press (or another digital press), as well as accurately print colors from a particular monitor or scanner. In addition, you can create customized ICC profiles for the digital press.
INTRODUCTION 10

Color management in Command WorkStation

Designed to give flexible control of color printing, Command WorkStation includes the following color management and color-related tools:
• Color management
Command WorkStation allows you to set the default settings of the ColorWise print options for the EX700i. These default settings are applied to all print jobs sent to the EX700i, unless a user overrides them for an individual job by changing settings in the printer driver or in Job Properties.
• Profiles
Command WorkStation allows you to manage all of the ICC profiles used in EX700i workflows. You can also create custom profiles by editing existing CMYK source or output profiles and saving them as new profiles. The AutoGray feature allows you to adjust the gray balance of output profiles.
•Calibrator
For consistent color, calibrate the EX700i on a regular basis. Command WorkStation includes an easy-to-use calibrator, which allows you to calibrate using either the scanning unit that is part of the digital press or an optional spectrophotometer or densitometer (see “Calibration” on page 46).
Command WorkStation also allows you to use any Status T densitometer by importing data in a standard file format. In this case, it is important to note that the quality of the instrument used determines the quality of the calibration.
• Spot-On (spot colors)
Spot-On is a spot color (named color) manager. You can adjust and manage lists of spot colors and their CMYK equivalents. The matching lists of spot colors and CMYK values are known as spot color dictionaries. Spot-On allows you to edit spot color definitions on the EX700i and create custom spot color definitions and dictionaries.
•ImageViewer
ImageViewer allows you to soft proof and adjust colors in a job before it is printed. You can use the preview in ImageViewer to verify job placement, orientation, and content, as well as general color accuracy.
• Image Enhance Visual Editor (IEVE)
IEVE is an image editing application that provides users with a visual workspace to adjust individual images in a job. With IEVE, you can see the effects of your adjustments and fine-tune the appearance of an image.
INTRODUCTION 11
•Auto Trapping
The configurable Auto Trapping feature provides you with advanced settings for the Auto Trapping print option. The EX700i is shipped with values that are optimized for the digital press using regular paper, but if these values do not provide the results necessary for the media that you use, you can modify the values to meet your requirements.
• Control Bar
The Control Bar feature allows you to add a static color bar and dynamic job information to each printed page at a user-defined location. The feature can be set as a server default or overridden on a per-job basis.
• Paper Simulation with White Point Editing
The white point editing feature allows you to allows you to perceptually adjust the hue, brightness, and saturation of the simulated paper white defined in an ICC profile.
Installing and starting Command WorkStation on a Windows or Apple Mac OS computer is described in Utilities. Command WorkStation can be installed from the User Software DVD or, if you have an EX700i Print Server, from the EX700i Print Server over the network.
COLORWISE PRINT OPTIONS 12

COLORWISE PRINT OPTIONS

The ColorWise color management system provides print options that affect the output of objects in various color spaces. By specifying the appropriate settings for each print option, you can obtain the expected results for your jobs.

About this chapter

This chapter provides an overview of the ColorWise management system, which controls color on the EX700i (see page 13), and detailed explanations of each print option. For the location of each print option, see the following table.
ColorWise print option See
Auto Trapping page 14
Black Detection page 15
Black Overprint page 15
Black Text and Graphics page 16
CMYK/Grayscale Processing Method page 18
CMYK/Grayscale Source or Device Link page 19
Combine Separations page 20
Composite Overprint page 21
Gray (RGB and CMYK) page 22
Optimize RGB Transparency page 22
Output Profile page 23
Paper Simulation page 23
PDF/X Output Intent page 24
RGB/Lab Rendering Intent page 25
RGB Source or Device Link page 26
Separate RGB/Lab to CMYK Source page 27
Spot Color Matching page 28
Substitute Colors page 29
Use Embedded Profile If Present page 29
COLORWISE PRINT OPTIONS 13
This chapter also provides information about PostScript printer drivers and instructions for setting the ColorWise print options for Windows and Mac OS computers. For information about printer drivers, see page 33.

Managing color on the EX700i

Applications allow you to generate color data for the EX700i in many different color spaces. The most common type of color data produced from office applications is RGB, while prepress applications generally produce CMYK data. Desktop applications also generate spot
colors, such as PANTONE colors. To complicate matters, a single page may contain a mix of
RGB, CMYK, and spot colors. The EX700i allows you to control the printing of mixed-color documents with features that apply specifically to RGB, CMYK, or spot color data.
The following diagram illustrates the print options in the EX700i color management process that affect color data conversions. You can access these print options when you send a print job to the EX700i. Most of these options and settings are described in subsequent sections of this chapter.
RGB data➪RGB Source
Gray (RGB)
RGB/Lab Rendering Intent
Brightness
Black Text and Graphics
Separate RGB/Lab to CMYK Source
Output Profile
CMYK data
Spot color data➪Spot Color Matching
CMYK/Grayscale Source
CMYK/Grayscale Processing Method
Gray (CMYK)
Brightness
Black Text and Graphics
Combine Separations
Output Profile
RGB Source or Device Link is the only color option that applies strictly to RGB color data. The other options that affect RGB color also affect the more rarely used Lab, XYZ, and other calibrated color spaces.
NOTE: If a job contains calibrated CMYK (or CIEBasedDEFG) data, the CMYK processing
options are not used. Instead, the RGB/Lab Rendering Intent print option, which normally affects only RGB data, is used to process the calibrated CMYK data. For more information. see “Use Embedded Profile If Present (RGB and CMYK)” on page 29.
EX700i
➪➪
color
processor
Color data sent to digital press
COLORWISE PRINT OPTIONS 14

Descriptions of ColorWise print options

The following sections provide detailed explanations of the ColorWise print options and how these options affect print jobs.
NOTE: For information about the 2-Color Print Mapping print option, see Fiery Graphic Arts
Package.

Auto Trapping

Trapping is a technique where the size of objects is modified so that colors printed next to each other overlap slightly, to prevent white spaces between two colors. These white spaces, or “halos,” can be caused by factors such as misregistration, the physical properties of the dry inks, and the stiffness of the media. This illustration shows the same image with and without trapping.
Auto Trapping Off Auto Trapping On
If you enable the Auto Trapping option, trapping is applied to all of the objects in a job.
The EX700i is shipped with trapping values that are optimized for a Fiery-driven print device using regular paper. If these values do not provide the results necessary for the media that you use, you can modify the values to meet your requirements, if you have the Fiery Graphic Arts Package, Premium Edition option on the EX700i Print Server or the Productivity Package option on the Integrated Fiery Color Server. For more information about the Fiery Graphic Arts Package, Premium Edition option, see Fiery Graphic Arts Package. For more information about the Productivity Package option, see Auto Trapping Customization.
COLORWISE PRINT OPTIONS 15

Black Detection

The Black Detection option allows you to specify whether or not to detect black-and-white pages before printing your job. To use this option, set Color Mode to CMYK.
Off: Select Off if your job consists of black-and-white text pages combined with a
significant number of color pages.
On: Select On if you are printing a predominantly black-and-white job. Black-and-white
only pages print with the proper billing information.

Black Overprint

The Black Overprint option allows you to specify whether or not black text or black text and graphics, defined as RGB=0, 0, 0, or as CMYK=0%, 0%, 0%, 100%, overprints colored backgrounds.
Text: Black text overprints colored backgrounds, eliminating white gaps and reducing the
halo effect or misregistration of colors. You can choose this setting only if the Black Text and Graphics option is set to Pure Black On.
Text & Graphics: Black text and graphics overprint colored backgrounds, eliminating
white gaps and reducing halo effects or misregistration of colors. You can choose this setting only if the Black Text and Graphics option is set to Pure Black On.
Off: Black text or text/graphics knocks out colored backgrounds.
NOTE: Before sending the print job to the digital press, PostScript applications may perform
their own black overprint conversions.
One example of how you might use this setting is a page that contains black text on a light blue background. The background blue is CMYK=40%, 30%, 0%, 0%. The black text is CMYK=0%, 0%, 0%, 100%.
• With Black Overprint set to Text or Text & Graphics, the final text or text/graphic portions of the page are overprinted, or combined with the underlying color. Black colors generated by applications (for example, RGB=0, 0, 0 or CMYK=0%, 0%, 0%, 100%) are printed using the black dry ink. This means that black text and line art does not exhibit halftone artifacts (as long as the digital press is calibrated correctly). No transition in cyan and magenta dry inks occurs. The quality of the output is improved, because it does not show artifacts near the edges of the black text.
• With Black Overprint Off, the border of the text or text/graphics is on an edge that has cyan and magenta dry inks on one side (outside the text) and black dry ink on the other side (inside the text). This transition may cause visible artifacts due to the practical limitations of the digital press.
NOTE: The reproduction of CMYK components is affected by the CMYK/Grayscale Source
setting and calibration curve when CMYK is not 0%, 0%, 0%, 100%.
COLORWISE PRINT OPTIONS 16

Black Text and Graphics

The Black Text and Graphics option affects black text and vector graphics. Under most circumstances, set this option to Pure Black On. When Black Text and Graphics is set to Pure Black On, black colors generated by applications (for example, RGB=0, 0, 0 or CMYK=0%, 0%, 0%, 100%) are printed using black dry ink only. The black text and line art do not exhibit halftone artifacts (as long as the digital press is calibrated correctly) and are not misregistered, since one dry ink is used. In addition, this setting eliminates blasting. This option must be set to Pure Black On if you want to set the Black Overprint option to Text or Te x t / Gr a p h i c s .
For some jobs, it is preferable to set this option to Normal, for example, if the page includes
gradient fills that use black. The following table describes the behavior of the Black Text and
Graphics option with black data defined in different color spaces.
COLORWISE PRINT OPTIONS 17
NOTE: Use the Black Text and Graphics option only when printing composites, not when
printing separations.
Color Black Text and Graphics = Normal Black Text and Graphics = Pure Black On or
Rich Black On
RGB=0,0,0
(All other RGB values are unaffected by the Black Text and Graphics setting.)
CMYK=0%,0%,0%,100%
(All other CMYK values are unaffected by the Black Text and Graphics setting.)
RGB=0,0,0 is printed according to the definition for RGB=0,0,0 in the output profile. This may be a rich black using all dry inks if the output profile specifies a rich black, or may be K-only if the output profile specifies K-only for RGB=0,0,0. The output is affected by the calibration curve.
CMYK=0%,0%,0%,100% may be printed as K-only or as a rich black using all dry inks, depending on the CMYK/Grayscale Source setting.
If CMYK/Grayscale Processing Method is Pure Primaries or if CMYK/Grayscale Source is Bypass Conversion, CMYK=0%,0%,0%,100% prints as 100% K and the amount of black dry ink is limited by the CMYK/Grayscale Source profile and the calibration curve.
If CMYK/Grayscale Processing Method is Full (Output GCR), CMYK=0%,0%,0%,100% is printed as a rich black using all dry inks according to the output profile. The output is affected by the calibration curve.
If CMYK/Grayscale Processing Method is Full (Source GCR), CMYK=0%,0%,0%,100% is printed as a rich black using all dry inks according to the CMYK/Grayscale Source profile. The output is affected by the calibration curve.
RGB=0,0,0 is printed as K-only, using the black dry ink (Pure Black On) or 100% K plus 50% Cyan (Rich Black On) using black and cyan dry inks. All other RGB values are unaffected by the Black Text and Graphics setting.
CMYK=0%,0%,0%,100% is printed as K-only, using the black dry ink (Pure Black On) or 100% K plus 50% Cyan (Rich Black On) using black and cyan dry inks, regardless of the CMYK/Grayscale Source and CMYK/Grayscale Processing Method settings. All other CMYK values are unaffected by the Black Text and Graphics setting.
Setting CMYK/Grayscale Source to ColorWise Off disables the CMYK source profile and the calibration curve. In this case, the black dry ink is not limited by the calibration curve.
Spot Colors
(Spot Colors are unaffected by the Black Text and Graphics setting.)
Setting CMYK/Grayscale Source to ColorWise Off disables the CMYK Source profile and the calibration curve. In this case, the black dry ink is not limited by the calibration curve.
Standard spot color processing Standard spot color processing
NOTE: PostScript applications, such as QuarkXPress, may convert elements defined as
RGB=0, 0, 0 to four-color CMYK black before sending the job to the EX700i. These elements are not affected by the Black Text and Graphics option. For more information, see
Fiery Color Reference.
COLORWISE PRINT OPTIONS 18

CMYK/Grayscale Processing Method

The CMYK/Grayscale Processing Method allows you to define your preferred CMYK-to-CMYK conversion technique.
Pure Primaries prints primary colors in a job (C only, M only, or Y only) as primary colors,
using only a single colorant. Secondary colors (M+Y, C+Y, and C+M) are printed as secondary colors, using only two colorants. The result is pure looking primary and secondary colors, with minimal banding in gradients.
Pure Primaries compromises overall color accuracy. Do not use Pure Primaries if color accuracy is important, such as when printing press proofs.
Full (Source GCR) provides a complete and accurate simulation based on colorimetric
transformations. Hues are preserved, even for primary colors. The Gray Component
Replacement level specified in the original (source) document is preserved. Process black
expressed in CMY is reproduced using CMY dry ink. Full (Source GCR) is recommended for the highest quality press proofing applications.
Full (Output GCR) is a complete and accurate simulation method based on colorimetric
transformations. Hues are preserved, even for primary colors. With this method, the Gray Component Replacement (GCR) level that was specified in the original document is not preserved. Instead, all CMYK data is reseparated using the GCR level specified by the output profile. This simulation technique is similar to traditional ICC color matching methods and is more appropriate than Full (Source GCR) for full color printing designed for the press, but reproduced on your digital press.
NOTE: When you specify Pure Black On for Black Text and Graphics and Full (Output GCR)
or Full (Source GCR) for CMYK/Grayscale Processing Method, the black text and graphics in your document are printed with 100% black-only dry ink.
COLORWISE PRINT OPTIONS 19

CMYK/Grayscale Source or Device Link

The CMYK/Grayscale Source or Device Link print option allows you to print press proofs or simulations. This setting specifies the offset press standard or other color printing device that you want to simulate. This option affects CMYK data only.
When you specify a setting other than Bypass Conversion or ColorWise Off for the CMYK/ Grayscale Source, the EX700i overrides source color space definitions or profiles that other color management systems may have specified. In cases where you do not want this setting to override another specified source color space, choose Bypass Conversion.
If your document contains an embedded CMYK profile that you want to use, select the Use Embedded Profile If Present (CMYK) option (see “Use Embedded Profile If Present (RGB
and CMYK)” on page 29. In this case, the CMYK/Grayscale Source setting is ignored and the
embedded profile is used instead.
In the printer driver, you can view an unlimited number of custom Full simulations created using Command WorkStation. The number of custom simulations is limited by the available disk space on the EX700i.
The CMYK/Grayscale Source setting you specify depends on the press standard for which the CMYK data was separated.
• For images that were separated using a custom separation (such as a separation produced with an ICC profile), choose the corresponding profile on the EX700i with the CMYK/ Grayscale Source setting.
• For images that were separated for SWOP, choose SWOP as the CMYK/Grayscale Source setting.
To properly simulate a printed image that was separated using an ICC profile, the same profile must be present on the EX700i. For more information about importing ICC profiles to the EX700i, see Command WorkStation Help.
Two settings are available if you want no CMYK simulation:
• The Bypass Conversion setting sends your original CMYK data to the digital press with calibration applied, but without conversions to simulate another printer.
The Bypass Conversion setting is recommended if you use another color management system instead of ColorWise (for example, ColorSync or Adobe Photoshop). In this case, the EX700i is expecting to receive CMYK data already in the device color space of the EX700i. The EX700i will not convert the data, but it will apply calibration.
• The ColorWise Off setting sends your original CMYK data to the digital press without calibration applied and without conversions to simulate another printer. The CMYK data is still subject to maximum density constraints, however.
The ColorWise Off setting is not available as a setting in Command WorkStation Color Setup or in Server Setup and cannot be the default CMYK/Grayscale Source setting. You choose this setting for a specific job.
COLORWISE PRINT OPTIONS 20
NOTE: When you print with the ColorWise Off setting, make sure the options you choose in
your application do not cause the application to modify CMYK data. If you enable PostScript Color Management or include an embedded profile, the color data sent by the application is similar to Lab color. When you print with settings like Let Printer Determine Colors or Let Photoshop Determine Colors, the application either converts the CMYK data or tags it for color management. You must specify No Color Management in the application when you print with the ColorWise Off setting.

Combine Separations

The Combine Separations setting specifies how to print separated CMYK data. It supports: Cyan, Magenta, Yellow, Black. On the EX700i Print Server, you can also combine one or more spot colors.
Off prints each separation individually.
On combines separations as a single, composite-color document, and automatically makes
the settings for the following print options: Color Mode (CMYK) and Black Overprint (Off).
The results of combining the multiple plates are predictable and accurate, regardless of the original application used. This feature also fully supports DCS 2.0 file formats when included in a PostScript print job from a page layout application.
The following applications have been tested with Mac OS and Windows for compatibility with the Combine Separations option:
• Adobe Illustrator
• Adobe InDesign
• Adobe PageMaker
• Adobe FreeHand
• QuarkXPress
For information about using the Combine Separations option with applications such as Photoshop, see Fiery Color Reference.
COLORWISE PRINT OPTIONS 21

Composite Overprint

When overlapping objects are printed, the foreground object can either overprint or knock out the background object. With overprinting, the color of the background object shows through the foreground object where they overlap, and the resulting color is a combination of the colors of the two objects. With a knock-out, the foreground object hides the background object where they overlap.
The Composite Overprint print option allows you to print overprinted objects as specified in the source file. By default, the Composite Overprint print option is off and overlapping objects print as knockouts.
NOTE: The Composite Overprint option does not overprint the foreground object if it is an
RGB object.
The Composite Overprint print option is supported for PostScript and PDF jobs produced by the following applications:
• Adobe Acrobat
• Adobe Illustrator
• Adobe InDesign
• Adobe FreeHand
• QuarkXPress
•CorelDRAW
The 2-Color Print Mapping option is ignored when Composite Overprint is enabled. The 2-Color Print Mapping option is a feature of the Fiery Graphic Arts Package, Premium Edition, which is an option to the EX700i Print Server.
If Composite Overprint is enabled for a job that contains spot colors, Spot-On must be enabled on the EX700i.
COLORWISE PRINT OPTIONS 22

Gray (RGB) and Gray (CMYK)

When Gray (RGB) is enabled, any RGB color where R=G=B is printed using only black dry ink instead of processed black. Similarly, when Gray (CMYK) is enabled, any CMYK color where C=M=Y=0 and K=any value is printed using only black dry ink instead of processed black.
You can choose to apply the Gray (RGB) or Gray (CMYK) option to either Text and Graphics or to Text, Graphics, and Images.
The following limitations apply:
• The Gray (RGB) or Gray (CMYK) option has no effect on a job that is pre-separated.
• If CMYK/Grayscale Processing Method is set to Pure Primaries, the Gray (CMYK) setting does not affect the output.
• If Separate RGB/Lab to CMYK Source is enabled, the Gray (RGB) option is set to Off. Likewise, if the Gray (RGB) option is not set to Off, you cannot enable Separate RGB/Lab to CMYK Source.
• If Black Text and Graphics is set to Pure Black On or Rich Black On, it takes precedence over Gray (RGB) or Gray (CMYK) for 100% black text and graphics.
• If a gray is specified as a spot color, the Gray (RGB) or Gray (CMYK) option does not affect that gray.

Optimize RGB Transparency

The Optimize RGB Transparency option affects jobs with the following characteristics:
• The job is in PDF format (submitted to the EX700i as a PDF file, not submitted from an application through a printer driver).
• The job contains transparent RGB or Lab objects. They might be objects that you have specified as transparent using an application that supports this capability, or they might be objects with a special effect, such as a drop shadow, that uses transparency to achieve the effect.
• The transparent objects overlap, creating an area of mixed color.
• The Adobe PDF Print Engine Preferred option is not enabled, which means that the EX700i converts the PDF job to PostScript when processing the job.
If you enable Optimize RGB Transparency, the EX700i will use the correct RGB source profile and rendering intent when converting the overlapping RGB colors to CMYK during the PDF-to-PostScript conversion. If you disable Optimize RGB Transparency, the area of overlapping colors might print with incorrect color or undesirable artifacts.
Optimize RGB Transparency can result in a longer processing time, especially for VDP jobs that contain multiple individual PDF pages. We recommend that you enable Optimize RGB Transparency only when necessary to achieve correct color output.
COLORWISE PRINT OPTIONS 23
You can specify Optimize RGB Transparency for a job in Job Properties in Command WorkStation, Hot Folders, or a virtual printer, but not when you print from the printer driver. The Optimize RGB Transparency option does not appear in the printer driver because jobs printed from the printer driver are always submitted to the EX700i as PostScript jobs, which are not affected by Optimize RGB Transparency.

Output Profile

Because the output profile is applied to all data in the print job, make sure that the profile you select is the right one for your job. The default output profile consists of a profile for your digital press that describes its color characteristics and a calibration target that describes the expected behavior of the digital press.
Use Command WorkStation to import your own output profile to the EX700i. Imported output profiles that do not already include a calibration target are at first associated with the calibration target that is tied to the default output profile. You can edit calibration target D-Max values separately.
Select the Use Media Defined Profile setting to automatically apply the output profile associated with the media type used in a print job, rather than setting a specific output profile. For more information, see Command WorkStation Help.

Paper Simulation

The Paper Simulation option gives you the benefit of the absolute colorimetric rendering that renders the white point of the source color space as a visible color in the output profile color space.
With the Fiery Graphic Arts Package, Premium Edition option on the EX700i Print Server or the Productivity Package option on the Integrated Fiery Color Server, you can customize the paper simulation by editing the white point values with Command WorkStation. For more information about the Fiery Graphic Arts Package, Premium Edition option on the EX700i Print Server, see Fiery Graphic Arts Package. For more information about the Productivity Package option, see Paper Simulation White Point Editing.
You can print a job with the Paper Simulation feature set to On from the printer driver without customizing paper simulation. Many jobs may print satisfactorily with the fixed default Paper Simulation setting.
The Paper Simulation option has two settings:
Enabled performs Absolute Colorimetric rendering.
Disabled (Default) performs Relative Colorimetric rendering.
COLORWISE PRINT OPTIONS 24

PDF/X Output Intent

The PDF/X Output Intent option is available on the EX700i Print Server, but not on the Integrated Fiery Color Server.
PDF/X is a subset of the PDF specification. PDF files can contain a variety of elements (text, graphics, even animations) and it is not always obvious how these elements should be displayed or printed. PDF/X was designed with a focus on high-quality printing. It excludes the use of PDF features that are not appropriate for graphic arts and adds features that prevent ambiguities related to printing. A PDF/X compliant document contains embedded information about the intended printing conditions for the document.
The PDF/X Output Intent option, when enabled for a PDF/X job, specifies that the EX700i use the PDF/X output intent embedded in the PDF/X document. Typically, whether you use this option depends on whether you are using the EX700i for proofing or production (final) printing.
Prints for proofing are expected to look exactly like the output of the final production device, regardless of the capabilities of the EX700i or digital press. For instance, when proofing Newsprint, you want the color gamut of the digital press to be very limited compared to its capabilities. In production, you usually want to maximize the use of the digital press gamut by applying specific color features of the EX700i or digital press. Even in production, however, you might choose to limit the color gamut in order to achieve consistency in the color produced by different devices.
The PDF/X Output Intent option only affects PDF/X files (conforming to the PDF/X3 or PDF/X-1a standard). It has no effect on non-PDF files or PDF files that are not PDF/X compliant. Profiles specified by PDF/X files must be embedded in the files, not referenced from an external locations.
NOTE: With the Fiery Graphic Arts Package, Premium Edition option on the EX700i Print
Server or the Productivity Package option on the Integrated Fiery Color Server, you can use a Hot Folders filter to determine if a PDF file is PDF/X compliant. For information about this Hot Folders filter, see Hot Folders Help.
When PDF/X Output Intent is enabled and no other setting conflicts, the EX700i processes a PDF/X compliant file in a way that produces results defined by the intents and source color spaces embedded in the file. The EX700i ignores the CMYK/Grayscale Processing Method and CMYK/Grayscale Source options. The rendering intents in the PDF/X file are used and the printed output is limited to the color gamut specified by the output profile embedded in the file.
When PDF/X Output Intent is disabled, the EX700i ignores the PDF/X output intent.
You can specify the PDF/X Output Intent print option for a job in Job Properties in Command WorkStation, but not when you print from the printer driver. PDF/X files can be imported directly to the EX700i using Command WorkStation or Hot Folders, but printer drivers always convert PDF before sending a job to the EX700i. The PDF/X Output Intent option does not appear in the printer driver.
COLORWISE PRINT OPTIONS 25
When you enable PDF/X Output Intent, you must set select the Use Embedded Profile When Present (RGB) option so that the rendering intent embedded in the PDF/X file is used. The PDF/X Output Intent and Use Embedded Profile When Present (RGB) options are accessible from Expert Settings in the Color window of Job Properties.

RGB/Lab Rendering Intent

The RGB/Lab Rendering Intent option specifies a rendering intent for color conversions. To control the appearance of images, such as prints from office applications or RGB photographs from Photoshop, select the appropriate rendering intent. The EX700i allows you to choose from the four rendering intents currently found in industry standard ICC profiles.
EX700i rendering intent Best used for Equivalent ICC
rendering intent
Photographic: Typically results
in less saturated output than presentation rendering when printing out-of-gamut colors. This style preserves tonal relationships in images.
Presentation:
colors but does not match printed colors precisely to displayed colors. In-gamut colors, such as flesh tones, are rendered well. This style is similar to the Photographic rendering intent.
Relative Colorimetric:
white-point transformation between the source and destination white points. For example, the bluish white color (gray) of a monitor is replaced by paper white. This style avoids visible borders between blank spaces and white objects.
Absolute Colorimetric:
no white point transformation between the source and destination white points. For example, the bluish white color (gray) is not replaced by paper white.
Creates saturated
Provides
Provides
Photographs, including scans and images from stock photography CDs and digital camera images.
Artwork and graphs in presentations. In many cases, this style can be used for mixed pages that contain presentation graphics and photographs.
Advanced use when color matching is important, but you prefer white colors in the document to print as paper white. This style may also be used with PostScript color management to affect CMYK data for simulation purposes.
Situations when exact colors are needed and visible borders are not distracting. This style may also be used with PostScript color management to affect CMYK data for simulation purposes.
Image, Contrast,
and Perceptual
Saturation, Graphics
Relative Colorimetric
Absolute Colorimetric
COLORWISE PRINT OPTIONS 26

RGB Source or Device Link

The RGB Source or Device Link setting allows you to define the characteristics of the RGB data in your document so that the appropriate color conversion occurs on the EX700i. Commonly used monitor color spaces are available from the printer driver and the EX700i. For others, use Command WorkStation to download custom monitor or scanner profiles.
When you specify a setting for the RGB Source, the EX700i overrides source color space definitions or profiles that other color management systems may have specified. Because the color space definitions are overridden, the output from the EX700i is consistent across platforms.
If your document contains an embedded RGB profile that you want to use, select the Use Embedded Profile If Present (RGB) option (see “Use Embedded Profile If Present (RGB and
CMYK)” on page 29). In this case, the RGB Source setting is ignored and the embedded
profile is used instead.
The EX700i RGB Source options are as follows:
EFIRGB specifies an EFI-defined color space recommended for users who have no detailed
information about their RGB data.
sRGB (PC) specifies the definition of a Windows computer monitor profile used as the
default.
Apple Standard specifies the definition of a Mac OS computer monitor profile used as the
default.
Adobe RGB (1998) is an Adobe-defined color space, used in prepress as the default
working space in Photoshop 5.
eciRGB is the European Color Initiative (ECI) recommended space for use as an RGB
working color space and color data exchange format for ad agencies, publishers, reproduction and printing houses.
Fiery RGB is an EFI-defined color space recommended for users of office applications. This
color space is similar to EFIRGB but is larger and can provide a more desirable blue output.
With the Use Embedded Profile When Present (RGB) option enabled, PostScript RGB data that contains a source color space definition is converted using the RGB/Lab Rendering Intent option (see “RGB/Lab Rendering Intent” on page 25). Non-PostScript RGB data and PostScript RGB data that does not contain a source color space definition are converted using the EFIRGB source profile and Presentation rendering intent.
COLORWISE PRINT OPTIONS 27

Separate RGB/Lab to CMYK Source

The Separate RGB/Lab to CMYK Source option determines how RGB colors (as well as Lab and XYZ colors) are converted to CMYK. The name of this option is meant to be descriptive, because the option defines the color spaces that are used by the EX700i to “separate” the RGB data into CMYK values.
The two choices available for this option determine whether RGB data is converted into the full gamut of the digital press (Separate RGB/Lab to CMYK Source disabled) or is first converted into the gamut of another digital printer or press standard (Separate RGB/Lab to CMYK Source enabled). This feature helps make one device behave like another for RGB data. For example, if a high-quality ICC profile is available for another print device, the digital press can simulate the behavior of that device.
Separate RGB/Lab to CMYK Source is also useful for prepress applications. For example, it allows you to experiment with the appearance of an RGB scan under different press printing conditions, without having to convert the RGB data to CMYK data for each condition. When the desired printing condition is found, convert the file to CMYK, using the same CMYK/Grayscale Source that you used during the experimentation.
NOTE: Use the Separate RGB/Lab to CMYK Source print option in conjunction with the
Output Profile or CMYK/Grayscale Source print options.
Enabled converts all RGB colors into the CMYK color space for a specified simulation
(select the desired simulation with the CMYK/Grayscale Source print option).
Disabled converts all RGB colors into the CMYK color space of your digital press.
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