EFI DocuColor 40 User manual

Fiery X40 Color Server
COLOR GUIDE
RELEASE COPY 8/7/00
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Contents
Introduction
About the documentation xiii
Key features of ColorWise xv
Chapter 1: Fiery X40 Color Management
Managing color on the Fiery X40 1-1
Rendering styles 1-5
RGB Source Profile 1-6
RGB Separation 1-7
CMYK Simulation Profile 1-8
CMYK Simulation Method 1-9
Output Profile 1-9
Pure BlackText/Graphics 1-10
Black Overprint 1-11
Spot Color Matching 1-12
Printer Drivers and Print Options 1-13
What a printer driver does 1-13
PostScript printer driver for Windows 95/98, Windows NT 4.0, and Windows 2000 1-14
Adobe PostScript printer driver for Mac OS 1-19
Chapter 2: Simple and Advanced Workflows
Workflow concepts 2-1
Short-run printing versus color proofing 2-1
RGB, CMYK, and PANTONE colors 2-2
Desktop versus Fiery X40 color management 2-3
Simple workflows 2-4
Select your colors wisely 2-4
Select a short workflow 2-5

viii Contents
Advanced workflows 2-9
Short-run printing examples 2-9
Color proofing examples 2-15
Chapter 3: Color Calibration
Introduction 3-1
Understanding calibration 3-2
How calibration works 3-2
Scheduling calibration 3-4
Checking calibration status 3-5
Using a densitometer 3-5
Setting up the densitometer 3-5
Calibrating the densitometer 3-8
Calibrating with ColorWise Pro Tools 3-9
Expert Mode 3-15
Chapter 4: ColorWise Pro Tools
Profile Manager 4-1
Setting the default profiles 4-3
Downloading profiles 4-5
Editing profiles 4-7
Managing profiles 4-7
Defining profiles 4-8
Color Editor 4-12
Editing Profiles 4-12
Undoing simulation edits 4-19
Checking edited profiles 4-21
Color Setup 4-23
Setting default ColorWise options 4-23

ix Contents
Chapter 5: Working with Color in Applications
Working with color 5-1
Color reference pages 5-2
Office applications 5-3
Choosing colors in office applications 5-4
PostScript applications 5-5
Choosing colors in PostScript applications 5-5
Default output profile 5-8
CMYK simulation 5-8
Chapter 6: Office Applications
Working with office applications 6-1
Defining colors 6-1
Working with imported files 6-1
Selecting options when printing 6-2
Output profiles 6-2
Chapter 7: Adobe Photoshop
Photoshop 5.x 7-1
Photoshop 5.x color settings 7-1
ColorSync defaults 7-6
Defining colors 7-7
Saving files for importing into other documents 7-7
Selecting options when printing 7-9
Printing tips for advanced users 7-11
Photoshop 4.x 7-13
Defining colors 7-13
Saving files for importing into other documents 7-13
Selecting options when printing 7-15

x Contents
Chapter 8: Page Layout Applications
Working with page layout applications 8-1
Defining colors 8-1
Importing images 8-2
CMYK simulation 8-3
Adobe PageMaker 6.5 for Mac OS and Windows 8-4
Importing images 8-4
Selecting options when printing 8-5
Optional Color Management from PageMaker 8-6
QuarkXPress 4.02 for Mac OS and Windows 8-7
Importing images 8-7
Selecting options when printing 8-8
Optional Color Management from QuarkXPress 8-9
QuarkXPress 3.32 for Mac OS and Windows 8-9
Importing images 8-9
Selecting options when printing 8-10
Chapter 9: Illustration Applications
Working with illustration applications 9-1
Defining colors 9-1
Importing images 9-2
CMYK simulation 9-2
Adobe Illustrator 8.x for Windows and Mac OS 9-3
Defining colors 9-3
Importing images 9-3
Optional Color Management in Illustrator 9-4
Selecting options when printing 9-4
Saving files for importing into other documents 9-5

xi Contents
Macromedia FreeHand 8.x for Windows and Mac OS 9-6
Defining colors 9-6
Importing images 9-6
Selecting options when printing from FreeHand 9-7
Saving files for importing into other documents 9-8
Optional Color Management in FreeHand 9-9
CorelDRAW for Windows and Mac OS 9-9
Defining colors 9-9
Importing images 9-9
Selecting options when printing 9-10
Saving files for importing into other documents 9-11
Optional Color Management in CorelDRAW 9-11
Appendix A: Desktop Color Primer
The properties of color A-1
The physics of color A-1
CIE color model A-2
Hue, saturation, and brightness A-3
Additive and subtractive color systems A-3
Printing techniques A-5
Halftone and continuous tone devices A-6
Using color effectively A-6
A few rules of thumb A-7
Color wheel A-7
Color and text A-8
Raster images and vector images A-9
Optimizing files for processing and printing A-10
Resolution of raster images A-10
Scaling A-12

xii Contents
Appendix B: Color Management
Controlling printed color B-1
Maintaining copier consistency B-2
Print device gamut B-2
Basics of color management B-3
Color conversion B-4
Appendix C: Importing densitometer measurements
Simple ASCII Import File Format (SAIFF) C-1
Example of 1D StatusT density for EFI 34 patch page C-2
Example of 1D StatusT density for EFI 21 patch page C-2
Example of 1D StatusT density for an arbitrary page C-3
Glossary
Bibliography
Index

xiii About the documentation
Welcome to the Color Guide .This manual introduces you to the concepts and issues
associated with printing to the Fiery X40 Color Server
™
. It outlines key workflow
scenarios, provides information on calibration and color profiles, and contains
applicationnotes that explain howto print tothe Fiery X40Color Serverfrompopular
Windows and Mac OS applications.
This manual is one book in a set of documentation that also includes manuals for users
and system administrators. All the other manuals should be available at your site—
refer to them for a complete description of your Fiery X40 Color Server.
N
OTE
:
The term “Fiery X40” is used in this manual to refer to the Fiery X40 Color
Server.The Fiery X40 supports the DocuColor 40 color copier.The term “copier” is
used in this manual to refer to this supported device.
About the documentation
The Color Guide is organized to supply you with key information about managing the
color output of your Fiery X40. Chapter 1 discusses the Fiery X40’s print options and
how to get the best color results, and Chapter 2 describes several effective workflows.
ColorWise Pro Tools are discussed in the next two chapters. Chapter 3 covers
Calibrator and other methods used to calibrate the copier, and Chapter 4 takes you
through the features of Profile Manager, used to manage color profiles on the
Fiery X40, and Color Editor, which lets you customize simulation and output profiles.
Succeeding chapters offer tips for printing from business and graphics applications.
Finally, the appendixes offer information about color theory and color management.
Words in bold, for example, output profile , are terms that appear in the glossary. The
bibliography at the end of this manual provides sources for further investigation of
color printing issues.
Color terms and concepts such as “RGB data,” “color space,” “spot color,” “gamut,”
and “source profile” are used throughout this manual. If you are new to desktop color
or if any terms are unfamiliar, be sure to read Appendixes A and B or check the
glossary.
Introduction

xiv Introduction
This manual is part of a set of Fiery X40 documentation that also includes the
following manuals for users and system administrators:
• The Configuration Guide explains basic configuration and administration of the
Fiery X40 for the supported platforms and network environments. It also includes
guidelines for setting up UNIX, Windows NT, and NetWare servers to provide
PostScript printing services to clients.
• Getting Started describes how to install software to enable users to print to the
Fiery X40. Specifically, it describes installation of PostScript printer drivers, printer
description files, and other user software provided on the User Software CD. It also
explains how to connect each user to the network.
• The Printing Guide describes the printing features of the Fiery X40 for users who
send jobs via remote workstations on the network.
• The Job Management Guide explains the functions of the Fiery X40 client utilities,
including the Command WorkStation, and how they can be used to manage jobs.
This book is intended for an operator or administrator, or a user with the necessary
access privileges, who needs to monitor and manage job flow and troubleshoot
problems that may arise.
• Release Notes provide last-minute product information and workarounds for some of
the problems you may encounter.

xv Key features of ColorWise
Key features of ColorWise
ColorWise is the color management system (CMS) built into the Fiery X40 and
designed to provide both casual and expert users the best color output for a variety of
purposes.The ColorWise default settings were specifically selected to provide great
out-of-box color from many applications and Windows and Mac OS platforms.This
means that casual users can get good quality output without knowing about or
changing any color settings on the Fiery X40.
To get consistent color you should be sure that the Fiery X40 is calibrated on a regular
basis. ColorWise Pro Tools include a simple-to-use calibrator, which allows you to
calibrate using optional densitometers (see Chapter 3).
There are a number of features that can be used to modify printing results. Depending
on your particular needs, you can:
• Set the behavior of CMYK printing to emulate DIC, Euroscale, and SWOP offset
press standards
• Match PANTONE colors for the best match when printed using four-color press
conditions or when printed using presses with extra, custom plates
• Select a color rendering dictionary (CRD), also called a rendering style, for RGB
printing. CRDs 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 screen matching, and you
can provide for better color conversion of RGB data with no source information
• Define whether RGB data is converted into the full gamut of the copier or whether
it is first converted into the gamut of another device, such as a press standard.This
feature is very helpful for making one device behave like another. It is also useful for
evaluating the appearance of the RGB file under different printing conditions
without having to reprocess the RGB data each time

xvi Introduction
ColorWise offers an open color architecture, letting users customize the Fiery X40 to
meet new printing needs as they arise. ColorWise supports ICC profiles, which are
industry standard color profiles that define the color behavior of a device. By down-
loading ICC profiles to the Fiery X40, it can simulate a custom press (or another
copier) as well as accurately print colors from a particular monitor or a particular scan-
ner. In addition, you can create customized ICC profiles for the copier.
ColorWise also lets you use any StatusT densitometer by importing data in a standard
file format (see Appendix C). In this case, it is important to note that the quality of the
instrument used will determine the quality of the calibration.

1
1-1 Managing color on the Fiery X40
The first part of this chapter describes the options available from the ColorWise color
management system and explains how you can customize the color settings for your
particular needs. It provides descriptions of the preset default settings of ColorWise
and covers additional options for users who need to customize ColorWise.
Beginning on page 1-13 is a detailed explanation of what a PostScript Level 2 or
PostScript 3 printer driver does, as well as information on the capabilities of various
printer drivers and instructions for setting color options with the PostScript drivers for
Windows NT 4.0, Windows 2000, Windows 95/98, and Mac OS.
Managing color on the Fiery X40
There are three ways to modify the Fiery X40’s printing behavior:
• You can select ColorWise options for an individual print job using menus that
appear from the printer driver.
• You can select most ColorWise options as server defaults from the Color Setup
application in ColorWise Pro Tools (see page 4-23). Defaults can also be set from
Fiery X40 Setup or from the Control Panel, as described in the Configuration Guide .
These defaults will apply to all subsequent print jobs unless you override them.
• You can select some ColorWise options, particularly default ICC profile settings
and calibration options, from ColorWise ProTools. These options include default
Simulation Profile (see page 1-8), Simulation Method (see page 1-9), Appear in
Driver as (see page 4-8), default Source Profile (see page 1-6), RGB Separation (see
page 1-7), and associated calibration set (see page 3-3).
Applications can generate color data for the Fiery X40 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 can 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 Fiery X40 lets users control
the printing of these mixed-color documents with features that apply specifically to
RGB, CMYK, or spot color data.
Fiery X40 color managementgenerates CMYKdata tobe sent to thecopier; additional
processing may then be performed before printing begins.
Chapter 1:
Fiery X40 Color
Management

1
1-2 Fiery X40 Color Management
The diagram below illustrates the print options in the Fiery X40 color management
process that affect color data conversions. You access these print options when you
send a print job to the Fiery X40. Most of these options and settings are described in
subsequent sections of this chapter.
RGB Source Profile 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.
N
OTE
:
For users who are familiar with PostScript 3.0 color, RGB Source Profile affects
all CIEBasedABC color spaces (if the source space is RGB). Also, if you send CMYK
data to the Fiery X40 in CIEBasedDEFG format, for example, by choosing PostScript
Color Management in Adobe Photoshop, the Fiery X40’s Rendering Style selection—
which normally affects only RGB data—will also affect this CMYK data.
Rendering Style (CRD)
Brightness
RGB Source Profile
Brightness
CMYK Simulation Profile
Gamma
Phosphors
White Point
Pure Black Text/Graphics
CMYK Simulation Method
RGB Separation
Black Overprint
Combine Separations
Output profile
Pure Black Text/Graphics
Black Overprint
Color data
sent to
copier
Fiery X40
color
processor
RGB data
CMYK data
Output profile
Spot color data Spot Color Matching

1
1-3 Managing color on the Fiery X40
Settings for the following options can be specified via print options when you send a
job to the Fiery X40. Some can also be set as defaults by the administrator during
Fiery X40 Setup. Settings specified via print options override the defaults.
Fiery X40 color print option: What it does:
Brightness
85% Lightest to 115% Darkest Performs a color adjustment on all color channels to make the printed output
lighter or darker.
Rendering Style
Photographic/Presentation/Relative
Colorimetric/Absolute Colorimetric
(Default set at Setup)
Applies a Fiery X40 color rendering style (CRD) to RGB data (see page 1-5),
or to any incoming data with a PostScript source color space definition,
including CMYK.
RGB Source Profile
EFIRGB/sRGB (PC)/Apple Standard/Other/
Source 1–10/None
(Default set at Setup or with
ColorWise Pro Tools)
Applies an RGB source space definition to RGB data (see page 1-6). If you
choose the Other setting, you can specify particular settings for gamma,
phosphors, and white point. See the corresponding options in this table.This
option, along with Gamma, Phosphors, and White Point, are the only
ColorWise options that affect only DeviceRGB or calibrated RGB color spaces.
(Other) Gamma
1.0/1.2/1.4/1.6/1.8/2.0/2.2/2.4/2.6/2.8/3.0 Applies the specified gamma value to the RGB source space definition (see page 1-6).To use this print option, you must choose Other as the RGB Source
setting.
(Other) Phosphors
Hitachi EBU/Hitachi-Ikegami/NTSC/
Radius Pivot/SMPTE/Trinitron
Applies the specified phosphor (monitor type) information to the RGB source
space definition (see page 1-6).To use this print option, you must choose
Other as the RGB Source setting.
(Other) White Point
5000 K (D50)/5500 K/6500 K (D65)/
7500 K/9300 K
Applies the specified white point value to the RGB source color space
definition (see page 1-6).To use this print option, you must choose Other as
the RGB Source setting.
RGB Separation
Output/Simulation Determines which CMYK color space your original RGB data will be
separated into—CMYK for the copier (Output) or CMYK for a specified
simulation (Simulation) (see page 1-7). It is important to note that when RGB
Separation is set to Simulation, RGB colors are affected by CMYK Simulation
Profile and CMYK Simulation Method.
CMYK Simulation Profile
SWOP-Coated/DIC/Euroscale/Simulation
1–10/Match Copy/None
(Default set at Setup or in
ColorWise Pro Tools)
Adjusts CMYK color data to simulate an offset press standard or a custom
color gamut defined at your site.The Match Copy setting bypasses Fiery X40
calibration to match a copy made from the copier glass. Choosing None
bypasses simulation (see page 1-8).
NOTE:Someof the Simulationsettingshave slightly differentnames depending
on the model of copier.

11-4 Fiery X40 Color Management
Detailed explanations of how these and other settings affect your print jobs are
provided in subsequent sections of this chapter.
CMYK Simulation Method
Quick/Full
(Default set at Setup or in
ColorWise Pro Tools)
Quick simulation applies one-dimensional transfer curves that adjust output
density only. Full simulation applies colorimetric transformations that adjust
hue as well as output density (see page 1-9).
Output Profile
default output profile/Output 1–10
(Default set at Setup or in
ColorWise Pro Tools)
The Output Profile is applied to all data in the print job (see page 1-9). User-
defined output profiles can be downloaded to the Fiery X40 with
ColorWise Pro Tools (see Chapter 4).
Pure Black Text/Graphics
On/Off
(Default set at Setup)
The On setting optimizes the quality of black text and line art output (see
page 1-10).
Black Overprint
On/Off (Default set at Setup) The On setting overprints black text placed on colored backgrounds; it
automatically activates the Pure BlackText/Graphics option (see page 1-11).
Spot Color Matching
On/Off
(Default set at Setup or with
ColorWise Pro Tools)
The On setting enables Fiery X40 matching of PANTONE colors; Off
instructs the Fiery X40 to match color output to a Pantone-specified CMYK
combination (see page 1-12).
Fiery X40 color print option: What it does: