Xerox Color 800i, Color 1000i, Color 800, Color 1000 Color Printing

Xerox EX Print Server, Powered by Fiery® for the Xerox Color 1000 Press

Color Printing

© 2010 Electronics for Imaging, Inc. The information in this publication is covered under Legal Notices for this product.

45089764

15 February 2010

		CONTENTS	3

CONTENTS

INTRODUCTION		5
	Terminology and conventions	5
	About this document	6
	Key features of ColorWise	7
	Color management in Command WorkStation	8
COLORWISE PRINT OPTIONS		9
	About this chapter	9
	Managing color on the EX Print Server	10
	Descriptions of ColorWise print options	11
	Auto Trapping	11
	Black Overprint	12
	Black Text and Graphics	13
	CMYK/Grayscale Processing Method	14
	CMYK/Grayscale Source or Device Link	15
	Combine Separations	16
	Composite Overprint	17
	Gray (RGB) and Gray (CMYK)	18
	Output Profile	18
	PDF/X Output Intent	19
	RGB/Lab Rendering Intent	20
	RGB Source or Device Link	21
	Separate RGB/Lab to CMYK Source	22
	Spot Color Matching	23
	Substitute Colors	24
	Use Embedded Profile If Present (RGB and CMYK)	24
	Specifying ColorWise print options	24
	Setting default values in Command WorkStation	26
	Setting print options in the printer driver	27

		CONTENTS	4

COLOR PROFILES		34
	Color files	34
	Installing additional ICC profiles on your computer	34
	Other color files	40
	Managing profiles on the EX Print Server	43
CALIBRATION		44
	Calibration methods	44
	Calibrating with Command WorkStation	45
	Managing calibration sets	46
	Using the output profiles and calibration sets	46
	Adding custom calibration sets	48
	Adding custom calibration sets and output profiles	48
	Understanding calibration	53
	An overview of calibration	53
	How calibration works	53
	Scheduling calibration	55
	Checking calibration status	55
SPOT-ON		56
	Using Spot-On	56
IMPORTING DENSITY MEASUREMENTS		59
	Simple ASCII Import File Format	59
	Example of 1D Status T density for EFI 21 patch page	60
	Example of 1D Status T density for EFI 34 patch page	60
	Example of 1D Status T density for an arbitrary page	61

INDEX

63

		INTRODUCTION	5

INTRODUCTION

This document explains how to manage color output on the Xerox EX Print Server, Powered by Fiery for the Xerox Color 1000 Press 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 Xerox EX Print Server, Powered by Fiery for the Xerox Color 1000 Press, see the other documents available at your site.

For more information about supported operating systems and system requirements, see

Welcome.

Terminology and conventions

This document uses the following terminology and conventions.

Term or convention	Refers to
Aero	EX Print Server (in illustrations and examples)
Press	Xerox Color 1000 Press
EX Print Server	Xerox EX Print Server, Powered by Fiery for the Xerox Color 1000
	Press
Mac OS	Apple Mac OS X
Titles in italics	Other documents in this set
Windows	Microsoft Windows XP, Windows Vista,
	Windows Server 2003/2008, Windows 7
	Topics for which additional information
	is available by starting Help in the software
	Tips and information

		INTRODUCTION	6

Term or convention		Refers to
		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.

About this document

This document is organized to supply you with key information about managing the color output of your EX Print 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 EX Print Server to achieve consistent color output

•Managing spot colors

•Importing calibration measurement data from a text file

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.

		INTRODUCTION	7

Key features of ColorWise

ColorWise is the color management system (CMS) built into the EX Print Server 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 EX Print Server. 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 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 EX Print Server 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 EX Print Server enables the EX Print Server to simulate a custom press (or another press), as well as accurately print colors from a particular monitor or scanner. In addition, you can create customized ICC profiles for the press.

		INTRODUCTION	8

Color management in Command WorkStation

Designed to give flexible control of color printing, Command WorkStation includes the following color management tools:

•Color management

Command WorkStation allows you to set the default settings of the ColorWise print options for the EX Print Server. These default settings are applied to all print jobs sent to the EX Print Server, 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 EX Print Server 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 EX Print Server on a regular basis. Command WorkStation includes an easy-to-use calibrator, which allows you to calibrate using an optional spectrophotometer or densitometer (see “Calibration” on page 44).

Command WorkStation also allows you to use any Status T densitometer by importing data in a standard file format (see “Importing Density Measurements” on page 59). 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. If Spot-On is available for your EX Print Server and is enabled, 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 EX Print Server and create custom spot color definitions and dictionaries.

Installing and starting Command WorkStation on a Windows or Mac OS computer is described in Utilities. Command WorkStation can be installed from the User Software DVD or from the EX Print Server over the network.

		COLORWISE PRINT OPTIONS	9

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 EX Print Server (see page 10), 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 11
Black Overprint	page 12
Black Text and Graphics	page 13
CMYK/Grayscale Processing Method	page 14
CMYK/Grayscale Source or Device Link	page 15
Combine Separations	page 16
Composite Overprint	page 17
Gray (RGB and CMYK)	page 18
Output Profile	page 18
PDF/X Output Intent	page 19
RGB/Lab Rendering Intent	page 20
RGB Source or Device Link	page 21
Separate RGB/Lab to CMYK Source	page 22
Spot Color Matching	page 23
Substitute Colors	page 24
Use Embedded Profile If Present	page 24

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 27.

		COLORWISE PRINT OPTIONS	10

Managing color on the EX Print Server

RGB data

CMYK data

Spot color data

Applications allow you to generate color data for the EX Print Server 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 EX Print Server 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 EX Print Server color management process that affect color data conversions. You can access these print options when you send a print job to the EX Print Server. Most of these options and settings are described in subsequent sections of this chapter.

RGB Source

Gray (RGB)

RGB/Lab Rendering Intent

Brightness

Black Text and Graphics

Separate RGB/Lab to CMYK Source

Output Profile

CMYK/Grayscale Source		EX Print Server	Color data sent
		color processor	to press
CMYK/Grayscale Processing Method
Gray (CMYK)
Brightness
Black Text and Graphics
Combine Separations
Output Profile
Spot Color Matching

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: With PostScript 3, a PostScript job can include calibrated CMYK (or CIEBasedDEFG) data. The RGB/Lab Rendering Intent print option, which normally affects only RGB data, affects calibrated CMYK data as well. The RGB Source or Device Link setting does not affect calibrated CMYK data.

		COLORWISE PRINT OPTIONS	11

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 following print options, see Fiery Graphic Arts Package.

•Halftone Simulation

•Paper Simulation

•2-Color Print Mapping

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.

If you enable the Auto Trapping option, trapping is applied to all of the objects in a job.

The EX Print Server 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, and if Fiery Graphic Arts Package, Premium Edition is configured on the EX Print Server, you can modify the values to meet your requirements. For more information, see Fiery Graphic Arts Package.

		COLORWISE PRINT OPTIONS	12

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 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 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 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%, 0%.

		COLORWISE PRINT OPTIONS	13

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 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 Text/Graphics.

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.

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)

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.

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%

(all other CMYK values are unaffected by the Black Text and Graphics setting)

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 Source is set to a specific profile, CMYK=0%,0%,0%,100% prints as K-only and the amount of black dry ink is limited by the CMYK Source profile and the calibration curve.

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.

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

Standard spot color processing

Standard spot color processing

(unaffected by the Black Text and Graphics setting)

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 EX Print Server. These elements are not affected by the Black Text and Graphics option. For more information, see

Fiery Color Reference.

		COLORWISE PRINT OPTIONS	14

CMYK/Grayscale Processing Method

The CMYK/Grayscale Processing Method allows you to define your preferred CMYK-to-CMYK conversion technique.

•Quick applies one-dimensional transfer curves to adjust output densities in the cyan, magenta, yellow, and black channels. This technique leads to eye-pleasing color output from your press because pure primary colors are not “contaminated” by other colorants. While it is the fastest simulation method and perfect for drafts, avoid using it for final documents that are used as press proofs. Other techniques offer the color simulation accuracy required by proofing applications.

•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 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	15

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 None or ColorWise Off for the CMYK/Grayscale Source, the EX Print Server 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 None.

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 24. 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 EX Print Server.

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 EX Print Server 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 EX Print Server. For more information about importing ICC profiles to the EX Print Server, see Command WorkStation Help.

Two settings are available if you want no CMYK simulation:

•The None setting sends your original CMYK data to the press with calibration applied, but without conversions to simulate another printer.

The None setting is recommended if you use another color management system instead of ColorWise (for example, ColorSync or Photoshop). In this case, the EX Print Server is expecting to receive CMYK data already in the device color space of the EX Print Server. The EX Print Server will not convert the data, but it will apply calibration.

•The ColorWise Off setting sends your original CMYK data to the 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 and cannot be the default CMYK/Grayscale Source setting. You choose this setting for a specific job.

		COLORWISE PRINT OPTIONS	16

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.

With the Fiery Graphic Arts Package or Fiery Graphic Arts Package, Premium Edition, you can combine an unlimited number of spot color separations along with the CMYK separations. For more information, see Fiery Graphic Arts Package.

•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	17

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.

		COLORWISE PRINT OPTIONS	18

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 Quick, 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.

Output Profile

Because the output profile is applied to all data in the print job, make sure the profile you select is the right one for your job. The default output profile consists of a profile for your press that describes its color characteristics and a calibration target that describes the expected behavior of the press.

Use Command WorkStation to import your own output profile to the EX Print Server. 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.

		COLORWISE PRINT OPTIONS	19

PDF/X Output Intent

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 EX Print Server 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 EX Print Server for proofing or for 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 EX Print Server or the press. For instance, when proofing Newsprint, you want the color gamut of the press to be very limited compared to its capabilities. In production, you usually want to maximize the use of the press gamut by applying specific color features of the EX Print Server or the 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, 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 EX Print Server 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 EX Print Server 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 EX Print Server 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 EX Print Server using Command WorkStation or Hot Folders, but printer drivers always convert PDF before sending a job to the EX Print Server. The PDF/X Output Intent option does not appear in the printer driver.

		COLORWISE PRINT OPTIONS	20

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 EX Print Server allows you to choose from the four rendering intents currently found in industry standard ICC profiles.

EX Print Server	Best used for	Equivalent ICC
rendering intent		rendering intent
Photographic: Typically results	Photographs, including scans and	Image, Contrast,
in less saturated output than	images from stock photography	and Perceptual
presentation rendering when	CDs and digital camera images.
printing out-of-gamut colors. This
style preserves tonal relationships in
images.

Presentation: Creates saturated 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.

Artwork and graphs in	Saturation,
presentations. In many cases, this	Graphics
style can be used for mixed pages
that contain presentation graphics
and photographs.

Relative Colorimetric: Provides	Advanced use when color matching	Relative
white-point transformation between	is important, but you prefer white	Colorimetric
the source and destination white	colors in the document to print
points. For example, the bluish	as paper white. This style may
white color (gray) of a monitor is	also be used with PostScript color
replaced by paper white. This style	management to affect CMYK
avoids visible borders between	data for simulation purposes.
blank spaces and white objects.
Absolute Colorimetric: Provides	Situations when exact colors are	Absolute
no white point transformation	needed and visible borders are not	Colorimetric
between the source and destination	distracting. This style may also be
white points. For example, the bluish	used with PostScript color
white color (gray) is not replaced	management to affect CMYK
by paper white.	data for simulation purposes.