Ricoh AP3850C Technical data

Fiery 3850C
COLOR GUIDE
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Contents
Introduction
About the documentation
xiii
Key features of ColorWise
xiv
Chapter 1: Fiery 3850C Color Management
Managing color on the Fiery 3850C
1-1
Rendering styles
1-4
RGB Source Profile
1-5
CMYK Simulation Profile
1-6
Output profile
1-6
Pure Black Text/Graphics
1-7
Black Overprint
1-8
Spot Color Matching
1-9
Printer drivers and print options
1-11
What a printer driver does
1-11
PostScript printer driver for Windows computers
1-12
Adobe PostScript printer driver for Mac OS
1-16
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 3850C color management
2-2
Simple workflows
2-3
Select your colors wisely
2-3
Select a short workflow
2-4
Advanced workflows
2-7
Short-run printing examples
2-7
Color proofing examples
2-13
viii
Contents
Chapter 3: Color Calibration
Introduction
3-1
Understanding calibration
3-2
How calibration works
3-3
Scheduling calibration
3-4
Checking calibration status
3-5
Calibrating from the Control Panel using VisualCal
3-5
Limits and 30% Match
3-5
Gray Balance
3-6
Using a spectrophotometer
3-7
Setting up the spectrophotometer
3-8
Calibrating the spectrophotometer
3-11
Calibrating with ColorWise Pro Tools and DTP41
3-16
Using a densitometer
3-25
Setting up the ED-100 densitometer
3-25
Setting up the X-Rite DTP32 densitometer
3-25
Calibrating the X-Rite DTP32 densitometer
3-28
Calibrating with ColorWise Pro Tools and DTP32/ED-100
3-29
Expert Mode
3-35
Chapter 4: ColorWise Pro Tools
Profile Manager
4-1
Setting the default profiles
4-3
Downloading profiles
4-5
Editing profiles
4-6
Managing profiles
4-7
Defining profiles
4-8
Color Editor
4-11
Editing profiles
4-11
Undoing simulation edits
4-16
Checking edited profiles
4-18
ix
Contents
Color Setup
4-19
Setting default ColorWise options
4-19
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
5-7
CMYK simulation
5-7
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
Specifying color settings
7-1
Photoshop 6.x color settings
7-1
Photoshop 5.x
7-4
Photoshop 5.x color settings
7-4
ColorSync defaults
7-10
Defining colors
7-11
Saving files for importing into other documents
7-11
Advanced tips for using PostScript color management
7-12
Selecting options when printing
7-13
Advanced tips for printing with Photoshop PostScript color management
7-15
x
Contents
Photoshop 4.x
7-17
Defining colors
7-17
Saving files for importing into other documents
7-17
Selecting options when printing
7-19
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 7.x and 6.5 for Mac OS and Windows
8-3
PageMaker color settings
8-3
Windows version requirement
8-4
Importing images
8-4
Selecting options when printing
8-4
Optional Color Management from PageMaker
8-6
QuarkXPress 4.x for Mac OS and Windows
8-6
Importing images
8-7
Selecting options when printing
8-7
Optional Color Management from QuarkXPress
8-8
QuarkXPress 3.32 for Mac OS and Windows
8-8
Windows version requirement
8-8
Importing images
8-9
Selecting options when printing
8-9
Chapter 9: Illustration Applications
Working with illustration applications
9-1
Defining colors
9-1
Importing images
9-2
CMYK simulation
9-2
xi
Contents
Adobe Illustrator for Windows and Mac OS
9-3
Illustrator 9.x color settings
9-3
Specifying print options
9-3
Illustrator 8.x color settings
9-6
Specifying print options
9-6
Saving files for importing into other documents
9-8
FreeHand 9.x and 8.x for Windows and Mac OS
9-9
FreeHand color settings
9-9
Defining colors
9-10
Importing images
9-10
Saving files for importing into other documents
9-12
Optional color management in FreeHand
9-12
CorelDRAW for Windows and Mac OS
9-12
Defining colors
9-12
Importing images
9-13
Selecting options when printing
9-13
Saving files for importing into other documents
9-14
Optional Color Management in CorelDRAW
9-14
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
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
xii
Contents
Optimizing files for processing and printing
A-10
Resolution of raster images
A-10
Scaling
A-12
Appendix B: Color Management
Controlling printed color
B-1
Maintaining printer 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 Status T density for EFI 34 patch page
C-2
Example of 1D Status T density for EFI 21 patch page
C-2
Example of 1D Status T density for an arbitrary page
C-3
Glossary
Bibliography
Index
xiii
Introduction
About the documentation
This manual introduces the concepts and issues associated with printing to the
Fiery 3850C™. It outlines key workflow scenarios, provides information on calibration
and color profiles, and contains application notes that explain how to print to the
Fiery 3850C from popular Microsoft Windows and Apple Mac OS applications.
This manual is part of a set of documentation that includes manuals for users and
system administrators. The other manuals should be available at your site—refer to
them for a complete description of your Fiery 3850C.
N OTE : The name “Aero” is used in illustrations to represent the Fiery 3850C. The term
“Windows 9x/Me” is used in this manual to refer to Windows 95/98/Me; individual
differences are noted. Windows XP is supported. If you use Windows XP, follow the
procedures for Windows 2000.
About the documentation
The Color Guide is organized to supply you with key information about managing
the color output of your Fiery 3850C. Chapter 1 describes the Fiery 3850C print
options and how to get the best color results, and Chapter 2 describes several effective
workflows. Calibration is discussed in the next two chapters. Chapter 3 covers
ColorWise Pro Tools™ and other methods of calibrating the printer, and Chapter 4
takes you through the features of Profile Manager™, used to manage color profiles on
the Fiery 3850C, and Color Editor™, which lets you customize simulation and output
profiles. Succeeding chapters provide tips for printing from business and graphics
applications. Finally, the appendixes offer information about color theory and color
management.
N OTE : PCL printer drivers are provided with the Fiery 3850C, but they support only a
few of the color features described in this manual. To take full advantage of the color
management features, use the PostScript printer drivers.
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.
xiv
Introduction
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, read Appendixes A and B or check the glossary.
This manual is part of a set of Fiery 3850C documentation that also includes the
following manuals for users and system administrators:
• The Configuration Guide explains basic configuration and administration of the
Fiery 3850C for the supported platforms and network environments. It also
includes guidelines for setting up UNIX, Windows NT/2000, and Novell NetWare
servers to provide Adobe PostScript printing services to clients.
• Getting Started describes the process of installing the software that enables users to
print to the Fiery 3850C. Specifically, it describes installation of printer drivers 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 3850C for users who
send jobs via remote workstations on the network.
• The Job Management Guide explains the functions of the Fiery 3850C client
utilities, including the Command WorkStation™, and how you use them 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.
The Printing Guide, Color Guide, and Job Management Guide are provided on a
CD-ROM.
Key features of ColorWise
ColorWise® is the color management system (CMS) built into the Fiery 3850C and
designed to provide both casual and expert users the best color output for a variety
of purposes. The ColorWise default settings provide great out-of-box color from many
Windows and Mac OS applications. This allows casual users to get quality output
without knowing about or changing any color settings on the Fiery 3850C.
xv
Key features of ColorWise
For consistent color make sure the Fiery 3850C is calibrated on a regular basis.
ColorWise Pro Tools include a simple-to-use calibrator, which allows you to calibrate
using a densitometer (see Chapter 3).
You can modify printing results using ColorWise features. 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 printing using four-color press
conditions or when printing 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 better
color conversion of RGB data with no source information
ColorWise offers an open color architecture, letting users customize the Fiery 3850C
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.
Downloading ICC profiles to the Fiery 3850C enables it to simulate a custom press (or
another printer), as well as accurately print colors from a particular monitor or a
scanner. In addition, you can create customized ICC profiles for the printer.
ColorWise also lets you use any Status T 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
Chapter 1:
Fiery 3850C
Color
Management
Managing color on the Fiery 3850C
The first part of this chapter describes the options available from the ColorWise color
management system and explains how to customize the color settings for your
particular needs. It provides descriptions of the preset ColorWise default settings and
covers additional options for users who need to customize ColorWise.
Beginning on page 1-11, there 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 and Mac OS computers.
PCL printer drivers are also available, but they support only a few of the color features
described in this manual. To take full advantage of the color management features, use
the PostScript printer drivers.
N OTE : If you use Windows XP, follow the procedures for Windows 2000.
Managing color on the Fiery 3850C
You can modify the Fiery 3850C printing behavior in several ways:
• Select ColorWise options for an individual print job using menus that appear from
the printer driver.
• Select most ColorWise options as server defaults from the Color Setup application
in ColorWise Pro Tools (see page 4-19). Defaults can also be set from Fiery 3850C
Setup or from the Control Panel, as described in the Configuration Guide. These
defaults apply to all subsequent print jobs unless you override them.
• Select some ColorWise options, particularly default ICC profile settings and
calibration options, from ColorWise Pro Tools. These options include default
Simulation Profile (see page 1-6), Appear in Driver as (see page 4-8), default Source
Profile (see page 1-5), and associated calibration set (see page 3-4).
The table below illustrates the print options in the Fiery 3850C color management
process that affect color data conversions. You access these print options when you
send a print job to the Fiery 3850C. Most of these options and settings are described in
subsequent sections of this chapter.
1
1-2
Fiery 3850C Color Management
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). If you send CMYK data
to the Fiery 3850C in CIEBasedDEFG format, for example, by choosing PostScript
Color Management in Adobe Photoshop, the Fiery 3850C Rendering Style
selection—which normally affects only RGB data—will also affect this CMYK data.
You can specify settings for the following options via print options when you send a
job to the Fiery 3850C. The administrator can also set some settings as defaults during
Fiery 3850C Setup. Settings specified via print options override the defaults. For
information about the default settings, see the Printing Guide.
Fiery 3850C color print option
Rendering Style
Photographic/Presentation/Relative
Colorimetric/Absolute Colorimetric
(Default set at Setup)
RGB Source Profile
EFIRGB/sRGB
(PC)/Apple Standard/Other/
Source 1–10/None
(Default set at Setup or with
ColorWise Pro Tools)
(Other) Gamma
1.0/1.2/1.4/1.6/1.8/2.0/2.2/2.4/2.6/2.8/3.0
(Other) Phosphors
Hitachi EBU/Hitachi-Ikegami/NTSC/
Radius Pivot/SMPTE/Trinitron
(Other) White Point
5000 K (D50)/5500 K/6500 K (D65)/
7500 K/9300 K
What it does
Applies a Fiery 3850C color rendering style (CRD) to RGB data (see
page 1-4), or to any incoming data with a PostScript source color space
definition, including CMYK.
Applies an RGB source space definition to RGB data (see page 1-5). 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, the only ColorWise
options that affects only DeviceRGB or calibrated RGB color spaces.
Applies the specified gamma value to the RGB source space definition (see
page 1-5). To use this print option, you must choose Other as the RGB Source
setting.
Applies the specified phosphor (monitor type) information to the RGB source
space definition (see page 1-5). To use this print option, you must choose
Other as the RGB Source setting.
Applies the specified white point value to the RGB source color space
definition (see page 1-5). To use this print option, you must choose Other as
the RGB Source setting.
1
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Managing color on the Fiery 3850C
Fiery 3850C color print option
CMYK Simulation Profile
SWOP-Coated/DIC/Euroscale/Simulation
1–10/None
(Default set at Setup or in
ColorWise Pro Tools)
Output Profile
Default output profile/Output 1–10
(Default set at Setup or in
ColorWise Pro Tools)
Pure Black Text/Graphics
On/Off
(Default set at Setup)
Black Overprint
On/Off (Default set at Setup)
Spot Color Matching
On/Off
(Default set at Setup or with
ColorWise Pro Tools)
What it does
Adjusts CMYK color data to simulate an offset press standard or a custom
color gamut defined at your site. Choosing None bypasses simulation (see
page 1-6).
N OTE : Some of the Simulation settings have slightly different names depending
on the model of printer.
The Output Profile is applied to all data in the print job (see page 1-6).
User-defined output profiles can be downloaded to the Fiery 3850C using
ColorWise Pro Tools (see Chapter 4).
The On setting optimizes the quality of black text and line art output.
(see page 1-7).
The On setting overprints black text placed on colored backgrounds; it
automatically activates the Pure Black Text/Graphics option (see page 1-8).
The On setting enables Fiery 3850C matching of PANTONE colors; Off
instructs the Fiery 3850C to match color output to a PANTONE-specified
CMYK combination (see page 1-9).
Detailed explanations of how these and other settings affect your print jobs are
provided in subsequent sections of this chapter.
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Fiery 3850C Color Management
Rendering styles
The Rendering Style option specifies a CRD for color conversions. You can modify the
Rendering Style option to control the appearance of images, such as prints from office
applications or RGB photographs from Photoshop. The Fiery 3850C lets you select
from the four rendering styles currently found in industry standard ICC profiles.
Fiery 3850C rendering style
Best used for
Equivalent
ICC rendering
style
Photographs, including scans and
images from stock photography
CDs.
Image,
Contrast, and
Perceptual
Presentation—Creates saturated
colors but does not match printed
colors precisely to displayed colors.
In-gamut colors such as flesh tones
are rendered well, similar to the
Photographic rendering style.
Artwork and graphs in
presentations. In many cases it can
be used for mixed pages that
contain both presentation graphics
and photographs.
Saturation,
Graphics
Relative Colorimetric—Provides
white-point transformation between
the source and destination white
points. For example, the bluish gray
of a monitor will map to neutral gray.
You may prefer this style to avoid
visible borders when not printing
full-bleed.
Advanced use when color
matching is important but you
prefer white colors in the
document to print as paper white.
It may also be used with PostScript
color management to affect
CMYK data for simulation
purposes.
Relative
Colorimetric
Absolute Colorimetric—Provides no
white point transformation between
the source and destination white
points. For example, the bluish gray
of a monitor will map to a bluish
gray.
Situations when exact colors are
needed and visible borders are not
distracting. It may also be used
with PostScript color management
to affect CMYK data for
simulation purposes.
Absolute
Colorimetric
Photographic—Typically results in
less saturated output than
presentation rendering when printing
out-of-gamut colors. It preserves
tonal relationships in images.
1
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Managing color on the Fiery 3850C
RGB Source Profile
The RGB Source Profile setting allows you to define the characteristics of the RGB
data in your document so the appropriate color conversion can occur on the
Fiery 3850C. Commonly used monitor color spaces are available from the driver and
from the ColorWise Pro Tools Profile Manager. For special needs, you can use
ColorWise Pro Tools to download custom monitor or scanner profiles.
When you specify a setting other than None for the RGB Source Profile, the
Fiery 3850C overrides source color space definitions or profiles that other color
management systems may have specified. For example, if you specified a ColorSync
System Profile on your Mac OS computer, the RGB Source Profile setting overrides it.
In cases where you do not want this setting to override another specified source color
space, choose None.
When you specify a setting other than None for the RGB Source Profile—since the
color space definitions are overridden—the prints from the Fiery 3850C will be
consistent across platforms. Below are the Fiery 3850C RGB Source Profile options:
• EFIRGB specifies an EFI-defined color space recommended for users who have no
detailed information about their RGB data.
• sRGB (PC) specifies the industry standard definition for a generic Windows PC
monitor.
• Apple Standard specifies the definition of all standard Mac OS computer monitors.
• Other allows you to specify custom RGB source settings. If you choose Other as the
RGB Source setting, you can choose settings for the Gamma, Phosphors, and White
Point options.
• Sources 1–10 specify the definitions you download as RGB source profiles. For more
information about downloading RGB source profiles, see Chapter 4.
• None instructs the Fiery 3850C to allow the RGB sources you defined elsewhere,
such as in the application, to be used. When you set RGB Source to None, the
appearance of colors will not be independent of the file type. For example, RGB EPS
files will look different from RGB TIFF files.
1
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Fiery 3850C Color Management
With RGB Source set to None, PostScript RGB data that contains a source color
space definition is converted using the CRD specified by the Rendering Style option
(see page 1-4). Non-PostScript RGB data and PostScript RGB data that does not
contain a source color space definition is converted using a general undercolor
removal conversion method.
CMYK Simulation Profile
The CMYK Simulation Profile print option allows you to print press proofs or
simulations. This option specifies the offset press standard or other color printing
device you want to simulate. This option affects CMYK data only.
The number of custom simulations is limited by the disk space on the Fiery 3850C.
The CMYK Simulation Profile setting you specify depends on the press standard for
which the CMYK data was separated.
• For images separated using a custom separation (such as a separation produced with
an ICC profile), choose the corresponding profile on the Fiery 3850C with the
CMYK Simulation Profile setting.
• For images separated for SWOP, choose SWOP as the CMYK Simulation Profile
setting.
N OTE : To properly simulate a printed image that was separated through the use of
an ICC profile, the same profile must be present on the Fiery 3850C. For more
information about downloading ICC profiles to the Fiery 3850C, see “Downloading
profiles” on page 4-5.
Output profile
The output profile is applied to all data in the print job, so make sure the selected
profile is the right one for your job. The default output profile consists of both a profile
for your printer, describing its color characteristics, and a calibration target that
describes the expected behavior of the printer at a particular print resolution
(600x600 dpi or 1200x1200 dpi).
In certain cases, you may want to customize the default output profile using the
ColorWise Pro Tools Color Editor to achieve particular color effects (see page 4-11).
If you do so, the new customized output profile is applied to all data in the print job.
1
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Managing color on the Fiery 3850C
Changing the output profile only does not affect its associated calibration target
(since the target is based on a printer model). You can edit D-Max values of the
calibration target separately (see page 4-6).
You can use the ColorWise Pro Tools Profile Manager to download your own output
profile to the Fiery 3850C (see page 4-5). Downloaded output profiles are at first
associated with the calibration target tied to the default output profile. You can edit
calibration target D-Max values separately.
Pure Black Text/Graphics
The Pure Black Text/Graphics option affects the printout for black text and vector
graphics on a page. Under most circumstances, you can leave this option set to On.
When Pure Black Text/Graphics is on, black colors generated by applications are
printed using 100 percent black-only toner (for example, RGB = 0, 0, 0;
CMYK = 0%, 0%, 0%, 100%; or K = 100%). This means the black text and line art
will not exhibit halftone artifacts and will not be misregistered, since there is only one
toner used. In addition, this setting eliminates blasting. This option is automatically
set to On when the Black Overprint option is set to On
For some jobs you may want to turn this option Off, for example, if the page includes
gradient fills that use black. The table below describes the behavior of the Pure Black
Text/Graphics option with black data defined in different color spaces.
1
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Fiery 3850C Color Management
N OTE : The Pure Black Text/Graphics option can be used only when printing
composites, not when printing separations.
Pure Black Text/Graphics
Input
black color
On
Off
RGB
With the default profile, prints a rich black using all
toners.
CMYK
Prints only with black toner, because CMYK
simulations preserve the black channel. The actual
amount of toner used depends on the current
simulation and the calibration state of the printer.
Prints 100% black
Spot
Prints only with black toner, because spot color
simulations preserve the black channel. The actual
amount of toner used depends on the current
simulation and the calibration state of the printer.
N OTE : 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
Fiery 3850C. These elements are not affected by the Pure Black Text/Graphics option.
See the application notes for details. Also, black text and line art defined as RGB = 0,
0, 0 in office applications (such as Microsoft Word) are converted to single-color black
(CMYK = 0%, 0%, 0%, 100%) by the Microsoft PostScript 3 driver for Windows
2000. To print this single-color black at the maximum toner density of the printer, set
the Pure Black Text/Graphics option to On.
Black Overprint
The Black Overprint option lets you specify whether or not black text, defined as
RGB = 0, 0, 0, or as CMYK = 0%, 0%, 0%, 100%, overprints colored backgrounds.
• On—Black text overprints colored backgrounds, eliminating white gaps and
reducing halo effects or misregistration of colors. Setting Black Overprint to On
automatically activates the Pure Black Text/Graphics option.
• Off—Black text knocks out colored backgrounds.
N OTE : PostScript applications may perform their own black overprint conversions
before sending the print job to the Fiery 3850C.
1
1-9
Managing color on the Fiery 3850C
One example of how you might use this setting is with a page that contains some black
text on a light blue background. The background blue color is CMYK = 40%, 30%,
0%, 0% and the black text is CMYK = 0%, 0%, 0%, 100%.
• With Black Overprint On, the final text portions of the page are overprinted, or
combined with the underlying colors. This results in CMYK = 40%, 30%, 0%,
100% for the color used for the text. There is no transition in the cyan and magenta
toners, and the quality of the output is improved since it will not show artifacts near
the edges of the text. The option also works with text defined in the RGB color
space, that is RGB = 0, 0, 0.
• With Black Overprint Off, the border of the text is on an edge that has cyan and
magenta toners on one side (outside the text) and black toner on the other side
(inside the text). On many devices, this transition causes visible artifacts because of
the practical limitations of the printer.
Spot Color Matching
The Spot Color Matching option provides automatic matching of PANTONE colors
with their best CMYK equivalents.
• On—The Fiery 3850C uses a built-in table to generate the closest CMYK matches of
PANTONE colors your printer can produce. (New tables are generated when you
add new output profiles.)
N OTE : Spot colors not included in the built-in table are treated as CMYK.
• Off—The Fiery 3850C uses the CMYK equivalents defined by your application to
print PANTONE colors.
For jobs that include PANTONE spot colors, set Spot Color Matching to On unless
you are printing press simulations. In that case, set Spot Color Matching to Off and
choose the appropriate CMYK Simulation setting (see page 1-6).
N OTE : You can use the Spot Color Matching option only when printing composites,
not when printing separations.
1
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Fiery 3850C Color Management
Spot Color Matching and the PANTONE Coated Color Reference
The PANTONE Coated Color Reference (described on page 5-6) prints differently
depending on the Spot Color Matching setting.
• On—The Fiery 3850C uses a built-in table to generate the best matches of the
PANTONE colors that your printer can produce. The PANTONE number is
printed below each swatch.
• Off—The Fiery 3850C prints swatches using the CMYK values recommended by
PANTONE (and used by applications that provide PANTONE color libraries). The
CMYK values used to generate the color, as well as the PANTONE number of the
color, are printed below each swatch. These CMYK values are printed through the
selected CMYK Simulation and Output Profile settings.
1
1-11
Printer drivers and print options
Printer drivers and print options
This section describes the role of the printer driver and explains how to use Windows
and Mac OS PostScript printer drivers for Fiery 3850C printing. PCL printer drivers
are also available, but they support only a few of the color features described in this
manual. To take full advantage of the color management features, use the PostScript
printer drivers.
N OTE : The term “PostScript” by itself is used to refer to Adobe PostScript Level 2
or later.
What a printer driver does
To take full advantage of the features of the Fiery 3850C, your print jobs must be sent
as PostScript data. Since most applications cannot generate PostScript data directly, it
is the function of a printer driver to interpret instructions from the application and
convert them to PostScript data.
A PostScript printer driver also allows you to select print options specific to your
printer. To do this, the printer driver must be matched with a PostScript printer
description file PPD for your Fiery 3850C. The PPD contains information about the
particular features supported by the Fiery 3850C and the printer. You can think of the
PPD as the lines of PostScript code in the file that are device-specific. When you print
a job, the printer driver lets you choose among features by displaying print options.
A few PostScript applications can send PostScript data directly to the printer and
present print options within the application interface. Even these applications,
however, require that you use a PostScript printer driver. See Getting Started for
information on installing printer drivers.
We recommend you set the print options initially in Fiery 3850C Setup (see the
Configuration Guide). This provides you with a default configuration that is
appropriate for most Fiery 3850C print jobs.
1
1-12
Fiery 3850C Color Management
PostScript printer driver for Windows computers
You can access the printer driver options described in this section by clicking
Start\Settings\Printers, right-clicking the appropriate printer, and selecting Properties
(Windows 9x/Me), Document Defaults (Windows NT), or Printing Preferences
(Windows 2000) from the pop-up menu. These settings are also accessible from the
Print Setup or Page Setup dialog boxes of most applications.
For Window 9x/Me, the Fiery 3850C driver interface enables you to save
combinations of settings that you can later access. In addition, you can choose
different settings for individual jobs from the applications you use.
The printer driver writes a PostScript file containing the instructions generated by your
application and the Fiery 3850C print options you selected. The printer driver sends
the PostScript file to the Fiery 3850C. The Fiery 3850C then performs PostScript
processing and color conversions and sends raster color data to the print device.
N OTE : The following illustrations and instructions do not apply to all applications.
Many applications, such as Adobe PageMaker, Adobe Photoshop, Adobe Illustrator,
QuarkXPress, and CorelDRAW, have other color management options in addition to
those presented in the printer driver. For information on specific applications, see
Chapters 6 through 9.
1
1-13
Printer drivers and print options
Setting color management print options for Windows 9x/Me and Windows NT
This section explains how to set Fiery 3850C color print options with the Adobe
PostScript printer driver, a PostScript 3 printer driver that takes full advantage of the
color features of the Fiery 3850C. Before you proceed, make sure you have completed
the following procedures described in Getting Started.
• Install the Adobe PostScript Printer Driver and the Fiery 3850C PPD.
• Set up the Fiery 3850C for printing.
To set print options, see the information for your operating system on page 1-12.
Under the Fiery Printing tab, click the ColorWise menu to select settings for the print
options described on page 1-2.
Click the ColorWise menu
1
1-14
Fiery 3850C Color Management
Click the Expert Settings
button to access additional
ColorWise options
Click Expert Settings to display additional color settings for the Fiery 3850C. Each
option allows you to select settings for your specific job.
1
1-15
Printer drivers and print options
Selecting Other for RGB Source Profile brings up the following window for specifying
custom RGB source settings (see page 1-5).
For most users, the default settings provide the right level of color control. For more
information about individual print options, see page 1-2.
Setting color management print options for Windows 2000
This section explains Fiery 3850C color print options with the Microsoft PostScript
Printer Driver for Windows 2000. This PostScript driver takes full advantage of the
color features of the Fiery 3850C. Before you proceed, make sure you have completed
the following procedures described in Getting Started:
• Install the Fiery 3850C PPD for the Microsoft PostScript Printer Driver.
• Set up the Fiery 3850C for printing.
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Fiery 3850C Color Management
To set print options, access the printer driver options as described on page 1-12. Click
the Advanced tab in the Printing Preferences dialog box, and then choose settings for
the print options described on page 1-2.
Adobe PostScript printer driver for Mac OS
This section explains how to set color management print options with the AdobePS
printer driver for Mac OS, a PostScript 3 driver that takes full advantage of the color
features of the Fiery 3850C and lets you save a set of print option settings.
Before you continue, make sure you have completed the following:
• Install the AdobePS printer driver and the Fiery 3850C PPD, as described in Getting
Started.
• Select the Fiery 3850C in the Chooser and set it up with the Fiery 3850C PPD.
N OTE : The following illustrations and instructions do not apply to all applications.
Many applications, such as PageMaker, Photoshop, Illustrator, QuarkXPress, and
CorelDRAW have other color management options in addition to those presented in
the printer driver. For information on specific applications, see Chapters 6 through 9.
1
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Printer drivers and print options
Setting color management print options
You can choose print options from the various panes of the AdobePS driver dialog box.
To access the initial AdobePS dialog box, choose Print from the File menu of your
application.
N OTE : The word “pane” is used to describe the different pages that appear in the driver
dialog box when you make selections from the pull-down menu at the upper left. Each
pane presents a particular set of print options.
The AdobePS driver includes the following Color Matching options.
• Color/Grayscale—When this setting is used to print to the Fiery 3850C, ColorWise
provides all color conversions on the Fiery 3850C. Typically, you should use this
option when printing to the Fiery 3850C.
• PostScript Color Matching—Can be used with PostScript devices such as the
Fiery 3850C. It provides for color conversion using a color rendering dictionary
(CRD) that is downloaded with the print job. This method requires that the file be
saved as an EPS with PostScript Color Management selected.
N OTE : If you use the PostScript Color Matching option, the driver may, depending on
the application in use, attach a CMYK source definition to the CMYK data in your
document. In this case, the CMYK data in the document is reseparated using a
Fiery 3850C CRD and converted to the selected output profile’s CMYK color space.
• ColorSync Color Matching—Provides for color conversion on the host computer.
This option can be used with PostScript devices such as the Fiery 3850C, but it is
intended for use with PostScript Level 1 devices. If you use this option, be sure to
specify the Fiery 3850C ICC profile as the Printer Profile. ColorSync Color
Matching is not a suggested color matching method, because it does not work in
conjunction with all applications and requires that you disable features of ColorWise
on the Fiery 3850C.
1
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Fiery 3850C Color Management
Setting Fiery 3850C color management options
In the AdobePS Print dialog box, choose Color Matching from the pull-down menu.
Choose Color Matching from
the pull-down menu
In the Color Matching pane, choose Color/Grayscale from the Print Color
pull-down menu.
Choose Color/Grayscale
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Printer drivers and print options
In the Printer Specific Options pane, choose settings for the print options described on
page 1-2.
If these settings are ones you use regularly, click Save Settings to save them for
subsequent jobs.
2
2-1
Chapter 2:
Simple and
Advanced
Workflows
Workflow concepts
This chapter discusses color management workflows used in short-run color printing,
as well as color proofing on the Fiery 3850C. It also gives examples of color
management in specific desktop applications and discusses the interaction between
those applications and ColorWise color management.
Workflow concepts
The term “workflow” is used to describe the path a job follows from its creation in a
desktop application to final printed output. It is helpful to think of the following
categories when describing workflows:
• Short-run printing versus color proofing for eventual output on an offset press
• RGB, CMYK, and PANTONE color systems
• Desktop color management within an application versus color management on the
Fiery 3850C, along with the notion that different versions of desktop applications
handle color management differently. It is important to pay close attention to the
version of a particular application when considering the workflows in this chapter.
Short-run printing versus color proofing
Short-run color printing refers to those jobs for which the Fiery 3850C is the final
print device. Printing jobs to the Fiery 3850C in preparation for printing on an offset
press is referred to as color proofing. Both types of Fiery 3850C print jobs use RGB,
CMYK, and PANTONE colors.
• For short-run jobs, bright, saturated colors are often desirable. These are achieved by
using the full range of colors available, referred to as the full gamut of the printer or,
more simply, printer CMYK. See “Advanced Workflows” on page 2-7 for short-run
printing examples.
• Offset jobs proofed on the Fiery 3850C require the printed colors to match those
from another set of CMYK printing conditions. Colors specified for an offset press
require CMYK simulation optimized for proofing on the printer. See “Advanced
Workflows” on page 2-7 for color proofing examples that simulate the gamut of
another digital printer or press standard.
2
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Simple and Advanced Workflows
RGB, CMYK, and PANTONE colors
Colors can be defined in several different color models, the most common being RGB,
CMYK, and the PANTONE color matching system. Each model requires a different
color conversion at the Fiery 3850C. Color conversion workflows for CMYK and
PANTONE colors are explained below.
• CMYK colors are device-dependent. In a proofing scenario, colors specified in
prepress applications are adjusted so the gamut of the Fiery 3850C printer can
simulate that of the press. In a short-run printing workflow, specifying CMYK
colors according to the calibrated printer output eliminates the need for simulation
during printing.
• PANTONE spot colors are special inks manufactured to run on an offset printing
press. Spot colors can be simulated using CMYK printer toners or process color inks.
Two basic workflows exist for printing PANTONE colors to the Fiery 3850C:
Spot Color Matching On instructs the Fiery 3850C to match the output of the
printer to the PANTONE spot color.
Spot Color Matching Off instructs the Fiery 3850C to match the printer output to a
PANTONE-specified process simulation. This CMYK combination is then printed
with the CMYK Simulation setting you choose, such as SWOP or DIC.
Desktop versus Fiery 3850C color management
A desktop color management system uses ICC profiles to convert colors from one
device gamut to the next (see Appendix B). The color data is converted when it is
passed from one application to another or when the job is sent to the printer, so the
processing occurs on your computer, as opposed to the Fiery 3850C.
One advantage of using ColorWise color management over desktop color management
is that your computer is spared added processing. Delaying color conversions until the
color data reaches the Fiery 3850C frees your computer so you can continue working,
and color conversions on the Fiery 3850C are, in most cases, much faster than similar
conversions on a host computer.
Managing most or all of your color on the Fiery 3850C can also eliminate the potential
for undesirable color management-related conflicts, such as iterative color conversions
and inconsistent color. The Fiery 3850C applies global corrections to specific groups of
RGB, CMYK, and PANTONE colors to avoid such conflicts.
2
2-3
Simple workflows
Finally, by sending RGB files instead of larger CMYK files from applications to the
Fiery 3850C, network traffic is minimized and jobs generally print faster.
ColorWise uses ICC profiles to convert colors to the printer gamut or simulate other
devices, such as an offset printing press. ColorWise manages color conversions for all
users printing to the Fiery 3850C from Windows and Mac OS computers. It lets users
follow a simple workflow with minimal intervention using robust default settings,
while giving advanced users the control and precision they need.
The Fiery 3850C can intelligently manage the printed appearance of RGB, CMYK,
and PANTONE colors. You can let the Fiery 3850C manage color for most short-run
color printing jobs without adjusting any settings.
Simple workflows
Every time you print a document containing colors that were not chosen for your
specific printer, those colors need to be converted, which requires color management.
You can define or modify colors at any stage in the workflow. Since ColorWise is
compatible with most other color management systems, you can use the workflow
most familiar to you.
This section provides examples of color workflows that should meet the needs of
most Fiery 3850C users. For information on specific desktop applications, see
Chapters 6 through 9.
Select your colors wisely
For the colors you see on your monitor to match those on your printed output, they
must go through color management, including precise calibration of your monitor and
printer. If you are not equipped or inclined to maintain accurate monitor color
management, you may opt for an easier approach. First, determine which is more
important you—printed colors or monitor displayed colors.
If displayed colors are more important, trust your eyes and your monitor. Visually
select colors on your monitor, but be aware that colors will be optimized only for your
monitor. When the document is opened on other monitors, the colors may look
different. And even though printed colors may not match those displayed on your
monitor, they will still print on the Fiery 3850C with good results.
2
2-4
Simple and Advanced Workflows
If printed colors are your priority, choose colors from printed samples. By using these
sample colors, your printed output will remain consistent regardless of how the colors
appear on different monitors. Print the palette of available colors from business
applications and then select colors from the printed samples. Fiery 3850C Color
reference files are included on the User Software CD (see page 5-2). You can also print
color charts from the Control Panel and select colors by number or name from the
printed samples. Advanced applications let you define colors in the easier-to-control
PANTONE and CMYK color spaces. See Chapter 5 for more advice on color
selection.
No matter which workflow most closely matches your own, you should calibrate your
printer regularly (see Chapter 3).
Select a short workflow
Every time colors are converted, performance and color accuracy are affected.
Therefore, a workflow with fewer steps minimizes the risk of error.
Workflow 1 using ColorWise calibration—minimal workflow
A minimal color workflow requires that you calibrate the printer. Select from printed
colors as described above, and set the CMYK Simulation option to None, since
simulation is not needed when colors are already defined using CMYK values
optimized for your calibrated printer.
N OTE : CMYK Simulation set to None is also useful when you want to prepare an
output profile of your calibrated printer or when you use less efficient color
management from the desktop (such as ColorSync or ICM).
In this workflow, colors are modified only at the calibration stage. This is indicated by
the black box in the diagram below.
Workflow 1—Colors you define in an application
Application
CMS
File format
Colors in output from the printer
Printer driver
ColorWise
CMS
ColorWise
calibration
2
2-5
Simple workflows
While this workflow lends some control over the color quality produced by the printer,
you should consider additional ColorWise color management, as described in the next
section.
Workflow 2 using ColorWise color management—standard workflow
Fiery 3850C servers are highly optimized for the specific printer they drive, and
ColorWise addresses many issues unique to your printer, including screens, individual
toner response, interactions among toners, natural smoothness of blends, and the
capability to render PANTONE and custom colors. The Fiery 3850C distinguishes
text and graphic from image elements, so the black channel information is preserved
while parameters used for CMYK color separations are maintained.
Conventional color management systems typically address only color conversions, and
they occupy your computer processor. When you use ColorWise, jobs leave your
computer faster to be processed more quickly on the Fiery 3850C.
The recommended standard color workflow (indicated by the black boxes in the
diagram below) uses ColorWise calibration and color management.
Workflow 2—Colors you define in an application
Application
CMS
File format
Colors in output from the printer
Printer driver
ColorWise
CMS
ColorWise
calibration
The Fiery 3850C comes into play near the end of the color workflow. To ensure the
colors you selected reach the Fiery 3850C and ColorWise in a usable form, you should
bypass any color management from applications and printer drivers. Keep in mind,
however, that color management from applications and printer drivers is fully
supported by ColorWise (see “Advanced workflows” on page 2-7).
You must print with the CMYK Simulation print option set to match the CMYK
color space in your application when you selected the colors. Any CMYK Simulation
setting applies calibration, so the response of the printer will appear to be stable.
2
2-6
Simple and Advanced Workflows
The recommended values for CMYK Simulation are SWOP in the US, Euroscale in
Europe, and DIC in Japan—choices that respect the color standard for each region. If
colors have been selected specifically for your calibrated printer, set CMYK Simulation
to None.
See the table on page 1-2 for a list and descriptions of ColorWise print options that
affect CMYK, RGB, PANTONE, and other colors.
Workflow 3 bypassing ColorWise—not recommended
Bypassing ColorWise color management, while an option, is not a recommended
workflow. When you bypass ColorWise, you must choose colors using only CMYK
formulas designed specifically for your printer. The Fiery 3850C still prints pages
using your PostScript files, and drives the printer and its accessories, but it does not
perform CMYK color transformation, nor does it consider the calibration of the
printer. Calibration is needed in order to get consistent output, since the color
response from your printer varies significantly depending on wear, heat, humidity, and
service.
The diagram below indicates that no modifications are made to colors in this
workflow.
Workflow 3—Colors you define in an application
Application
CMS
File format
Colors in output from the printer
Printer driver
ColorWise
CMS
ColorWise
calibration
Turn off color management in your application
Generally, when printing to the Fiery 3850C, you should disable color management in
the application to ensure the Fiery 3850C receives color data properly and prints it
accurately.
2
2-7
Advanced workflows
Save your files using color-safe settings
You can take several additional steps to ensure color accuracy.
• When saving EPS files, do not include PostScript Color Management information.
This minimizes the risk conflicting data and multiple color conversions. PostScript
Color Management causes your CMYK and RGB colors to be interpreted by the
Fiery 3850C as though they were supplied in the Lab color space and, as a result, to
be processed by CRDs rather than your simulation settings.
• Include ICC color information in files. ColorWise does not conflict with this
information, and such data is useful for identifying the specific color space used by
your files.
• Do not include halftone and transfer functions.
• Turn off color management in the printer driver.
On Windows computers, if the printer driver offers Image Color Matching options,
select Printer Image Color Matching.
On Mac OS computers, set the printer driver to include no color management
commands at print time (see page 1-16).
Advanced workflows
The following sections present advanced color management workflow examples for
three short-run printing and three color proofing situations. Each workflow example
consists of a brief description, steps for creating and manipulating the files, a list of the
ColorWise settings used in the example, and a table that summarizes the workflow.
N OTE : These examples reference specific software applications to illustrate image-
editing, illustration, page layout, and business/office applications; they are Adobe
Photoshop, Adobe Illustrator, QuarkXPress, and Microsoft PowerPoint, respectively.
Short-run printing examples
The following examples illustrate short-run printing on the Fiery 3850C.
Photoshop RGB workflow
This short-run workflow of printing an RGB image from Photoshop is one of the
simplest Fiery 3850C color workflows. RGB data is sent from the application, through
the printer driver, to the Fiery 3850C, and the RGB-to-CMYK conversion takes place
2
2-8
Simple and Advanced Workflows
on the Fiery 3850C using a CRD rather than the application. Use the settings
illustrated in this workflow for printing photographs and artwork.
This document could be created as follows:
• Create an RGB image in Photoshop.
• Print the file directly to the Fiery 3850C.
See Chapter 7 for recommended print settings from Photoshop.
• Use ColorWise to convert the RGB image to printer CMYK, or the full copier
gamut.
The ColorWise settings used in this example are:
• RGB Source Profile set to EFIRGB or another RGB source definition
• Rendering Style set to Photographic
The diagram below indicates the steps for this particular workflow in black.
Photoshop RGB workflow
Photoshop
Printer driver
ColorWise
print options
Read Embedded Profiles
Define RGB Source
Embed Source Profiles
Convert RGB to CMYK
Convert CMYK to CMYK
Select RGB Mode
Select CMYK Mode
Select Destination Profile
Save as TIFF
Save as EPS
Save as JPEG
Print
(Mac OS-Only)
Black and White
Color/Grayscale
ColorSync Color Matching
PostScript Color Matching
Define RGB Source
Select RGB Source: None
Select Rendering Style (CRD)
Convert Press CMYK to Press Sim.
Convert Press CMYK to Custom Sim.
Select Copier CMYK Sim.: None
Turn Spot Color Matching On
Turn Spot Color Matching Off
Select Output Profile
Select Custom Output Profile
2
2-9
Advanced workflows
Photoshop RGB with Illustrator and QuarkXPress CMYK and PANTONE colors
This workflow involves short-run printing of a complex page layout with images
saved in Photoshop, illustrations created in Illustrator, and PANTONE spot colors.
A Photoshop image is saved in an RGB color space using the EPS file format.
Illustrator artwork contains objects defined as CMYK and as PANTONE spot colors
selected from printed output, and they are saved using the Illustrator EPS file format.
After all of these individual objects are imported into QuarkXPress, additional design
elements in QuarkXPress are colored using CMYK process colors or PANTONE spot
colors. Use the settings illustrated in this workflow for printing brochures, newsletters,
and other layouts.
N OTE : Anytime you place CMYK colors in a document, select them from printed
output (see page 2-3).
This document could be created as follows:
• Create an RGB image in Photoshop and save it as Photoshop EPS.
• Create a graphic in Illustrator using CMYK and PANTONE colors and save as
Illustrator EPS.
• Use CMYK colors and a PANTONE color in a QuarkXPress document.
• Import the Illustrator EPS into QuarkXPress and place the Photoshop EPS image.
• Print the QuarkXPress document to the Fiery 3850C.
• Use ColorWise to convert the RGB image to printer CMYK, to adjust the process
colors for short-run printing, and to match the PANTONE spot colors using the
full printer gamut.
2
2-10
Simple and Advanced Workflows
The ColorWise settings used in this example are:
• RGB Source Profile set to EFIRGB or another RGB source definition
• Rendering Style set to Photographic
• CMYK Simulation set to None
• Spot Color Matching set to On
The diagram below indicates the steps for this particular workflow in black.
Photoshop RGB workflow with Illustrator, QuarkXPress CMYK, and PANTONE colors
Photoshop
Illustrator
QuarkXPress
Printer driver
Read Embedded Profiles
Read Embedded Profile
Read Embedded Profile
(Mac OS-Only)
Define RGB Source
Define RGB Colors
Define RGB Colors
Black and White
Embed Source Profiles
Define CMYK Colors
Define CMYK Colors
Color/Grayscale
Convert RGB to CMYK
Define PANTONE Colors
Define PANTONE Colors
ColorSync Color
Convert CMYK to CMYK
Convert RGB to CMYK
Convert RGB to CMYK
Matching
Select RGB Mode
Convert PANTONE to CMYK
Convert CMYK to CMYK
PostScript Color
Select CMYK Mode
Embed Source Profile
Convert PANTONE to CMYK
Matching
Select Destination Profile Select Destination Profile
Embed Source Profile
Save as TIFF
Export as TIFF
Select Destination Profile
Save as EPS
Save as EPS
Export as TIFF
Save as JPEG
Print
Save as EPS
Print
Print
ColorWise
print options
Define RGB Source
Select RGB Source: None
Select Rendering Style (CRD)
Convert Press CMYK to Press Sim.
Convert Press CMYK to Custom Sim.
Select Copier CMYK Simulation: None
Turn Spot Color Matching On
Turn Spot Color Matching Off
Select Output Profile
Select Custom Output Profile
2
2-11
Advanced workflows
Photoshop RGB with Illustrator CMYK and PANTONE and PowerPoint RGB
This workflow involves short-run printing of a complex presentation document with
images saved in Photoshop, illustrations created in Illustrator, and PANTONE spot
colors. All elements are imported into PowerPoint for output.
This document could be created as follows:
• Create an RGB image in Photoshop and save it as Photoshop EPS.
• Create a graphic in Illustrator using CMYK colors and a PANTONE spot color and
save as Illustrator EPS.
• Create a presentation in PowerPoint using RGB colors.
• Import the Illustrator EPS graphic into the PowerPoint presentation and place the
Photoshop EPS image.
• Print the PowerPoint document to the Fiery 3850C.
• Use ColorWise to convert the PowerPoint RGB colors and Photoshop RGB image
to printer CMYK, to adjust the process colors for more saturated short-run printing,
and to match the PANTONE spot colors using the full printer gamut.
2
2-12
Simple and Advanced Workflows
The ColorWise settings used in this example are:
• RGB Source Profile set to EFIRGB or another RGB source definition
• Rendering Style set to Presentation
• CMYK Simulation set to None
• Spot Color Matching set to On
The diagram below indicates the steps for this particular workflow in black.
Photoshop RGB and Illustrator CMYK and PANTONE in PowerPoint RGB workflow
Photoshop
Illustrator
Read Embedded Profiles
Read Embedded Profile
Define RGB Source
Define RGB Colors
Embed Source Profiles
Define CMYK Colors
Convert RGB to CMYK
Define PANTONE colors
Convert CMYK to CMYK
Convert RGB to CMYK
Select RGB Mode
Convert PANTONE to CMYK
Select CMYK Mode
Embed Source Profile
Select Destination Profile Select Destination Profile
Save as TIFF
Export as TIFF
Save as EPS
Save as EPS
Save as JPEG
Print
Print
PowerPoint
Printer driver
Define RGB Colors
Convert CMYK to RGB
Print
(Mac OS-Only)
Black and White
Color/Grayscale
ColorSync Color
Matching
PostScript Color
Matching
ColorWise
print options
Define RGB Source
Select RGB Source: None
Select Rendering Style (CRD)
Convert Press CMYK to Press Sim.
Convert Press CMYK to Custom Sim.
Select Copier CMYK Simulation: None
Turn Spot Color Matching On
Turn Spot Color Matching Off
Select Output Profile
Select Custom Output Profile
2
2-13
Advanced workflows
Color proofing examples
The following examples illustrate methods for simulating the output from another
printing system, such as an offset press. Each of the proofing examples uses an ICC
profile to describe the destination color space. While some examples use simulation
profiles built into the Fiery 3850C, others use ColorWise Pro Tools (see Chapter 4) to
download custom ICC output profiles to the Fiery 3850C for use as simulation
profiles.
Photoshop 5.x RGB-to-CMYK conversion using a custom ICC profile
This workflow is useful for prepress environments that have integrated ICC color
management and have profiles for the presses they use. In this example, an image in
Photoshop 5.x is converted from RGB to CMYK using the Photoshop ICC color
conversion features in the CMYK Setup option. (For more information on CMYK
Setup, see your Photoshop 5.x documentation.) Using the Simulation settings available
in ColorWise, the CMYK image is printed to the Fiery 3850C, and the output is made
to appear as if it were printed on an offset press.
This document could be created as follows:
• In Photoshop 5.x, set CMYK Model in CMYK Setup to ICC.
• In the Profile menu, select an ICC profile for the desired offset press. Click OK.
• Open an RGB image. From the Image pull-down menu select Mode>CMYK Color.
• Save the image in any file format.
• Print directly to the Fiery 3850C.
• Use ColorWise Pro Tools to select a simulation profile or download a custom ICC
profile to the Fiery 3850C for use as a CMYK Simulation Profile.
2
2-14
Simple and Advanced Workflows
The ColorWise settings used in this example are:
• CMYK Simulation Profile set to the desired press standard or to the corresponding
custom simulation (Simulation 1-10) if you downloaded your profile with
ColorWise Pro Tools
The diagram below indicates the steps for this particular workflow in black.
Photoshop RGB-to-CMYK workflow using ICC profile
Photoshop 5.x
Printer driver
Read Embedded Profiles
Define RGB Source
Embed Source Profiles
Convert RGB to CMYK
Convert CMYK to CMYK
Select RGB Mode
Select CMYK Mode
Select Destination Profile
Save as TIFF
Save as EPS
Save as JPEG
Print
(Mac OS-Only)
Black and White
Color/Grayscale
ColorSync Color Matching
PostScript Color Matching
ColorWise
print options
Define RGB Source
Select RGB Source: None
Select Rendering Style (CRD)
Convert Press CMYK to Press Sim.
Convert Press CMYK to Custom Sim.
Select Copier CMYK Simulation: None
Turn Spot Color Matching On
Turn Spot Color Matching Off
Select Output Profile
Select Custom Output Profile
2
2-15
Advanced workflows
Photoshop 5.x Built-in RGB-to-CMYK workflow
This workflow is useful for prepress environments that have not integrated ICC color
management and do not have profiles for the presses they use. In this example, an
image is converted from RGB to CMYK using the Photoshop 5.x/6.0 Built-in color
conversion features in the CMYK Setup option. (For more information on CMYK
Setup, see your Photoshop 5.x documentation.) Using the Simulation settings available
in ColorWise, the CMYK image is printed to the Fiery 3850C, and the output is made
to appear as if it were printed on an offset press.
This document could be created as follows:
• Select the Built-in option from CMYK Setup in Photoshop 5.x/6.0
Color Settings.
• Adjust the Ink Options and Separation Options to match your offset press.
• Select the Tables option in CMYK Setup and click Save.
This saves your settings as a CMYK ICC profile that you will later download to the
Fiery 3850C as a custom simulation profile.
• Select the Built-in option in CMYK Setup again and click OK.
• Launch ColorWise Pro Tools and download your new CMYK ICC profile to the
Fiery 3850C as a custom Simulation profile.
For the Appear in Driver as option in Profile Settings, select Simulation-1.
(For more information on downloading profiles, see page 4-5.)
• Open an RGB image in Photoshop 5.x. From the Image menu, select
Mode>CMYK Color. Save the image as Photoshop EPS.
• Print the image directly to the Fiery 3850C and choose Simulation-1 as the CMYK
Simulation Profile setting.
2
2-16
Simple and Advanced Workflows
The ColorWise settings used in this example are:
• CMYK Simulation Profile set to Simulation-1
The diagram below indicates the steps for this particular workflow in black.
Photoshop5.x RGB-to-CMYK workflow
Photoshop 5.x
Printer driver
Read Embedded Profiles
Define RGB Source
Embed Source Profiles
Convert RGB to CMYK
Convert CMYK to CMYK
Select RGB Mode
Select CMYK Mode
Select Destination Profile
Save as TIFF
Save as EPS
Save as JPEG
Print
(Mac OS-Only)
Black and White
Color/Grayscale
ColorSync Color Matching
PostScript Color Matching
ColorWise
print options
Define RGB Source
Select RGB Source: None
Select Rendering Style (CRD)
Convert Press CMYK to Press Sim.
Convert Press CMYK to Custom Sim.
Select Copier CMYK Simulation: None
Turn Spot Color Matching On
Turn Spot Color Matching Off
Select Output Profile
Select Custom Output Profile
3
3-1
Chapter 3:
Color Calibration
Introduction
Calibrating the Fiery 3850C ensures consistent, reliable color output. You can calibrate
the Fiery 3850C with ColorWise Pro Tools using any of these instruments:
• X-Rite DTP41 automatic scanning spectrophotometer (page 3-7)
• X-Rite DTP32 automatic scanning densitometer (page 3-25)
• EFI ED-100 Densitometer (page 3-25)
Each of these instruments must be purchased separately. By connecting the instrument
to the serial port on your computer, you can quickly measure color patches and
download measurements to the Fiery 3850C. You can also obtain measurements from
the printer’s built-in scanner and calibrate using VisualCal, which does not require the
use of a densitometer and can be run from ColorWise Pro Tools. VisualCal is run from
the Control Panel on the Fiery 3850C.
This chapter explains how calibration works and provides instructions for all
calibration procedures. Calibrating with VisualCal is described onpage 3-5.
Calibrating with ColorWise Pro Tools is described on page 3-29. For information on
advanced calibration and simulation features such as editing profiles and creating
custom profiles, see Chapter 4. A format for inputting color measurements from other
densitometers is described in Appendix C.
The procedures described in Chapters 3 and 4 are fundamentally the same for
Windows and Mac OS computers. The main differences are the interface cable and the
port used to connect to the densitometer.
Introduction
Calibration generates curves that adjust for the difference between the actual toner
densities (measurements) and the response expected by the output profile.
• Measurements represent the actual color behavior of the printer.
• Calibration sets are sets of measurements.
• A calibration target that describes the expected behavior of the printer is contained
in each output profile.
3
3-2
Color Calibration
Once you have calibrated the Fiery 3850C with ColorWise Pro Tools or with
VisualCal, a calibration set is stored on the Fiery 3850C. This calibration set is used
when it is associated with an output profile. Every output profile has an associated
calibration set. If you have not specified one, the calibration set associated with the
default output profile is used.
N OTE : Changing calibration has the potential to affect all jobs for all users, so you
may want to limit the number of people authorized to perform calibration. You can set
an Administrator password from the Fiery 3850C Control Panel or in Setup from
Command WorkStation to control access to calibration.
Understanding calibration
Although most users’ needs are met by the default calibration set, the Fiery 3850C
allows you to choose a calibration set to customize calibration for specialized jobs.
Calibration allows you to:
• Maximize the color reproduction capabilities of the Fiery 3850C.
• Ensure consistent color quality over time.
• Produce consistent output across Fiery 3850C servers that are connected to the same
print engine.
• Achieve better color matches when reproducing spot colors such as PANTONE
colors or other named color systems.
• Optimize the Fiery 3850C for using ColorWise rendering styles (CRDs), CMYK
simulations, and ICC profiles.
3
3-3
Understanding calibration
How calibration works
Success in obtaining satisfactory print quality from a color server, such as a
Fiery 3850C, connected to a printer depends on many factors. Among the most
important are establishing and maintaining optimal toner densities. Density is a
measure of the light absorbed by a surface. By carefully regulating toner densities, you
can obtain consistent printed color.
Even with a calibrated system, toner density is affected by service settings, humidity,
and temperature; it also tends to drift over time. Regular measurement detects day-today variations in densities, and calibration corrects for them.
Calibration works by creating calibration curves on the Fiery 3850C that compensate
for the difference between actual (measured) and desired (target) density values.
Calibration curves are the graphic equivalent of transfer functions, which are
mathematical descriptions of changes that will be made to the data you start with.
Transfer functions are often graphed as input or output curves.
The Fiery 3850C generates calibration curves after comparing measured values to the
final target values for each of the four toner colors. The target values are based on the
output profile specified.
Measurements
Measurement files contain numerical values that correspond to the toner density
produced by the printer when it prints solid cyan, magenta, yellow, and black, and
graduated tints of those colors.
To create a measurement file, first print a page of color patches from
ColorWise Pro Tools. Then you measure the patches using the EFI Densitometer
100,the X-Rite DTP41 spectrophotometer, or an X-Rite DTP32 densitometer
connected to a computer on the network or the printer’s scanner. The new
measurements are automatically downloaded to the Fiery 3850C.
3
3-4
Color Calibration
Output profiles and calibration sets
Output profiles and calibration sets define desired calibration results. One or more
output profiles and one or more calibration sets are provided with the Fiery 3850C.
When you calibrate the Fiery 3850C, you can select the calibration set that
corresponds to the typical printing jobs at your site. This same calibration set can be
associated with one or more output profiles. (For more information on output profiles,
see page 1-6.)
Scheduling calibration
In general, you should calibrate the Fiery 3850C at least once a day, depending on the
volume of print jobs. If it is very important to maintain consistent color, or if the
printer is subject to wide fluctuations in temperature or humidity, calibrate every few
hours. To get the best performance, calibrate whenever there is a noticeable change in
print quality.
If you need to split a print job into two or more batches to be printed at different
times, it is especially important to calibrate before printing each batch. You should also
calibrate the Fiery 3850C after printer maintenance. However, because the printer may
be less stable immediately after maintenance, wait until you have printed
approximately 50 pages before you calibrate.
N OTE : Since printed output from the printer is very sensitive to changes in temperature
and humidity, the printer should not be installed near a window, in direct sunlight, or
near a heater or air conditioner. Paper is sensitive to climate changes as well. It should
be stored in a cool, dry, stable environment, and reams should remain sealed until they
are needed.
Print color reference pages, such as the Color Charts (from the Control Panel or
Command WorkStation) and the color reference pages included with the user software
(see Getting Started ). All of these pages include fully saturated color patches and pale
tints of cyan, magenta, yellow, and black. Images with skin tones offer a very good
basis for comparison. You can save and compare pages you printed at different times. If
there is a noticeable change in appearance, you should calibrate the Fiery 3850C.
3
3-5
Calibrating from the Control Panel using VisualCal
When you examine the Test Page, keep in mind that all color patches should be visible,
even though they may be very faint in the five percent and two percent range, and each
color’s patch set should show uniform gradation from patch to patch as the color
lightens from 100 percent to zero percent.
If the solid density patches (100% cyan, magenta, yellow, or black) look less saturated
with time, show the pages to your printer service technician to find out whether
adjusting the printer can improve output.
Checking calibration status
You can check whether the Fiery 3850C is calibrated, which calibration set and output
profile were used, and when the printer was last calibrated:
• Print a Configuration page or Test Page from the Control Panel or the Command
WorkStation.
For information about printing these pages, see the Configuration Guide.
• When you select a calibration set in Calibrator, the last calibration and the user who
performed it are displayed.
Calibrating from the Control Panel using VisualCal
VisualCal is a calibration method that allows you to calibrate your printer to a color
output standard defined by the manufacturer. The calibration calculations performed
by the controller software are based on a series of values entered on the control panel.
The values used in the calculations are determined by evaluating toner densities and
color combinations produced on two specially designed calibration pages printed from
the control panel.
Limits and 30% Match
The first VisualCal page, “Limits and 30% Match,” provides the basis for calculating
the most acceptable luminosity (brightness) of the toners. This page consists of rows of
CMYK dots in a graduated range of toner densities.
The variables needed to recalculate the density of the colored toners are determined by
identifying the leftmost dots that can be fully distinguished against their fields in each
row, and sequentially entering their corresponding numeric values on the control
3
3-6
Color Calibration
panel. The variable needed to recalculate the luminosity of the toners is determined in a
slightly different way—you identify the black dot that best matches a 30% dot gain
field. When all values have been entered, the printer’s toner density and luminosity
settings are recalculated.
Gray Balance
The second VisualCal page, “Gray Balance,” provides the basis for calculating a
“neutral gray balance,” that is, a CMY gray that as closely as possible matches a pure K
(blacK) gray produced by the printer’s engine. This page consists of rows of CMY gray
patches on a field of gray produced solely from black.The variables needed to calculate
the printer’s most neutral gray balance are determined by identifying the CMY patch
that best matches this field, and entering its row and column location on the control
panel. When the values have been entered, the printer’s gray balance is recalculated.
TO
PERFORM
V ISUAL C AL
CALIBRATION
1.
At the Idle screen, press the Menu button to enter the Functions menu.
2.
Choose Calibration, and choose Set Up Calibration.
If a password is set on the Fiery 3850C, enter it and press OK.
3.
For Calibration Mode, select Standard or Expert.
Expert Mode adds the option to print a Comparison Page (see page 3-35).
4.
For Measurement Method, chose VisualCal.
5.
Back at the main calibration screen, select Calibrate.
6.
Press Yes to print the Limits and 30% Match page.
To reset the printer’s toner density and luminosity settings, follow the instructions
provided on the Limits and 30% Match page. Use the touch screen to change
numbers; do not use the numerical keypad.
N OTE : Zero (0) and 9 are unacceptable values for color calibration. If you select 0 for
any of the colors, the resulting calibration will be inaccurate. If the entered value for
any color is 9, the Limits and 30% Match page is reprinted automatically. Re-enter
values for all color rows starting with Black Start.
When you have finished entering all values, the PRINT GRAYS screen appears.
3
3-7
7.
Using a spectrophotometer
Press Yes to print the Gray Balance page.
To reset the printer’s gray balance, follow the instructions provided on the Gray
Balance page. When you have finished entering all values, the PRINT COLOR TEST screen
appears.
N OTE : If the Gray Balance page is printed after the Limits calculations have been made,
the gray field on which the CMY patches appear on the Limits page will use the new
density and luminosity calibration settings.
Select Yes to print a color test page that uses the original values (CURRENT COLOR
TEST PAGE) and a Color test that uses the new values (NEW COLOR TEST PAGE), and use
the up and down arrows to select YES. Press Enter to print the pages.
8.
If you are satisfied with the printer’s calibration based on the new values, select YES
from the APPLY CHANGES screen that appears, and press OK to calibrate the printer
based on the previously entered values.
9.
Choose Exit Calibration to return to the Functions menu.
Use the following suggestions for adjusting VisualCal for your specific preferences:
• If your print seem to be color balanced but too dark, enter a lower value for the 30%
Match entry on the Limits and 30% Match page, last row.
• If your print seems too light, enter a higher value.
• If light areas on your prints have a color cast, enter a lower value in the Start row for
that toner.
• If dark areas on your prints have a color cast, enter a higher value in the End row for
that toner.
Using a spectrophotometer
ColorWise Pro Tools Calibrator is designed to work with the X-Rite DTP41
spectrophotometer, a device that measures density and color data. The DTP41
communicates directly with the Calibrator application in ColorWise Pro Tools,
sending measurements to the Fiery 3850C automatically.
3
3-8
Color Calibration
Setting up the spectrophotometer
Before you calibrate the Fiery 3850C, you need to connect, configure, and calibrate
the spectrophotometer to prepare for measuring the printed patches (see “Calibrating
the X-Rite DTP32 densitometer” on page 3-28). For additional information about
setting up and using the DPT41, see the Instrument Operator’s Manual that came with
it.
TO
CONNECT THE
X-R ITE DTP41
TO THE COMPUTER
1.
Turn off the computer.
2.
Unpack the X-Rite DTP41, and remove the spacer from the measurement page slot.
3.
Plug the square end of the interface cable (looks like a modular phone plug) into the
serial interface connection on the side of the X-Rite DTP41.
Instrument button
Alignment mark
LED indicator
Measurement page slot
Power input
Calibration strip
entrance
Serial interface
connection
3
3-9
4.
Using a spectrophotometer
Attach the connector to the computer.
For a Windows computer, insert the 8-pin mini-DIN end of the interface cable into
the 9-pin DB9 Connector cable adapter. Insert the 9-pin end into the COM1 or
COM2 port on the computer and tighten the screws. If the available port on your
computer is 25-pin, you must use the 8-pin-to-25-pin adapter.
Unused connector
Connect to computer
Connect to adapter
Square connector
Interface cable
3
3-10
Color Calibration
For a Mac OS computer, connect the 8-pin mini-DIN plug directly into the serial port
of the computer.
Unused connector
Connect to serial port
N OTE : For Macintosh computers with a USB port (for example, an iMac) you need an
adapter to connect the DTP41 to your computer. See the X-Rite, Inc. web site
(www.x-rite.com) for information on supported adapters.
3
3-11
5.
Using a spectrophotometer
Use the AC adapter to provide power.
Plug the small connector on the adapter cable into the power input of the X-Rite
DTP41 and plug the AC adapter into the power cord. Plug the power cord into a wall
outlet.
AC adapter
Power cord
Small connector
6.
Turn on the computer.
7.
Use ColorWise Pro Tools to calibrate the X-Rite DTP41 (see page 3-28).
8.
Use ColorWise Pro Tools and the DTP41 to calibrate the Fiery 3850C (see page 3-16).
Calibrating the spectrophotometer
For the best color accuracy, you should calibrate the X-Rite DTP41 spectrophotometer
every time you calibrate the Fiery 3850C. You can initiate the calibration sequence in
ColorWise Pro Tools Calibrator as part of the process of Fiery 3850C calibration. The
computer may also prompt you that it is necessary to calibrate the spectrophotometer.
Alternatively, you can initiate the DTP41 calibration process using the Instrument
button on the DTP41. See the Instrument Operator’s Manual that accompanied the
X-Rite DTP41 for more information on this method.
Multiple users connect to one Fiery 3850C server with ColorWise Pro Tools, but only
one user at a time can use the Calibrator module. An error message appears if you try
to calibrate when another user is already using ColorWise Pro Tools to calibrate.
3
3-12
Color Calibration
N OTE : ColorWise Pro Tools for Windows and Mac OS computers are fundamentally
the same; differences are noted in this chapter. The screens and dialog boxes you see
illustrated here are the Windows version.
You will need the Color Reflection Reference strip included with the
spectrophotometer. Remove the strip from its protective envelope, handling it only by
the edges. Keep the strip free of dust and smudges, and always store it in the protective
envelope.
TO
CALIBRATE THE
X-R ITE DTP41
1.
Connect the spectrophotometer to the computer and turn on power (see page 3-8).
2.
Launch ColorWise Pro Tools and connect to the Fiery 3850C.
For instructions on configuring the connection to the Fiery 3850C, see Getting Started.
N OTE : If the connection to the Fiery 3850C from Command WorkStation that also
allows for access to ColorWise Pro Tools is not established, you can directly launch
ColorWise Pro Tools independently of Command WorkStation.
3.
Click Calibrator.
3
3-13
4.
Using a spectrophotometer
Select DTP41 as the measurement method.
X-Rite DTP41 should appear as a measurement method. This information is provided
to Calibrator by the Fiery 3850C. If this option does not appear, make sure you are
connected to the Fiery 3850C.
5.
Under Get Measurements, click Measure.
6.
In the Measurement Options dialog box, click Measure.
7.
Select the appropriate COM port for the DTP41 from the Available Ports menu.
3
3-14
Color Calibration
The Instructions field displays instructions for selecting the port.
Instructions field
Select port for the DTP41
8.
Click Utilities.
9.
Click Calibrate DTP-41.
3
3-15
Using a spectrophotometer
N OTE : To view version and serial number information, click Show DTP-41 Info.
When finished, click Done.
10.
Remove the shipping spacer from the measurement page slot, if you have not already
done so.
11.
Insert the end of the Color Reflection Reference strip with the arrow into the
calibration strip entrance on the DTP41, centering it below the alignment mark
(see the diagram on page 3-8).
Insert the strip about 3 inches, past the front idler rollers, until it rests against the rear
drive rollers.
12.
Click Read Reference.
The DTP41 will pull the calibration strip through automatically.
3
3-16
Color Calibration
13.
Click Done.
14.
Close the Utilities window.
Status field indicates DTP41
was calibrated successfully
This completes DTP41 calibration.
When the DTP41 requires calibration, your computer prompts you.
When this dialog box appears, click Calibrate Now and follow the instructions,
starting with step 9 on page 3-14.
After calibrating the DTP41, calibrate the Fiery 3850C (see page 3-16).
Calibrating with ColorWise Pro Tools and DTP41
Using the ColorWise Pro Tools Calibrator application and the DTP41
3
3-17
Calibrating with ColorWise Pro Tools and DTP41
spectrophotometer, you can quickly measure color patches generated by the printer
and automatically download these measurements to the Fiery 3850C.
Changing the calibration has the potential to affect all jobs for all users, so you may
want to limit the number of people authorized to perform calibration. You can set an
Administrator password from the Fiery 3850C Control Panel to control access to
calibration.
Multiple users can connect to one Fiery 3850C server with ColorWise Pro Tools, but
only one user at a time can use the Calibrator module. An error message appears if you
try to calibrate when another user is already using ColorWise Pro Tools to calibrate.
N OTE : Before using ColorWise Pro Tools and the DTP41 to calibrate the Fiery 3850C,
follow the instructions on page 3-28 for calibrating the DTP41 spectrophotometer.
TO
CALIBRATE THE
1.
F IERY 3850C
USING THE
DTP41
Launch ColorWise Pro Tools and connect to the Fiery 3850C.
For instructions on configuring the connection to the Fiery 3850C, see Getting Started.
N OTE : If the connection to the Fiery 3850C from Command WorkStation that also
allows for access to ColorWise Pro Tools is not established, you can directly launch
ColorWise Pro Tools independently of Command WorkStation.
2.
Click Calibrator.
3
3-18
3.
Color Calibration
Select DTP41 as the measurement method.
X-Rite DTP41 should appear as a measurement method. This information is provided
to Calibrator by the Fiery 3850C. If this option does not appear, make sure you are
connected to the Fiery 3850C.
4.
Under Check Print Settings, choose the desired calibration set.
Choose the appropriate calibration set for the print resolution you will use most often.
N OTE : For this calibration to take effect, the calibration set must be associated with one
or more output profiles. The default calibration set is already associated with the
default output profile, so there is no need to make any new associations.
5.
Under Generate Measurement Page, click Print.
6.
In the Print Options dialog box, choose the Page Type, Paper Size, and Input Tray to
use for the measurement page, and then click Print.
In the Page Type pop-up menu, select either 34 or 21 Sorted Patches.
In the Paper Size pop-up menu, the menu will automatically select LTR/A4 for 21
Sorted Patches or 11x17/A3 for 34 Sorted Patches.
3
3-19
Calibrating with ColorWise Pro Tools and DTP41
In the Input Tray pop-up menu, specify the paper source.
Print Options window for
DTP41 calibration
method
7.
Retrieve the measurement page from the printer.
8.
Under Get Measurements, click Measure.
The selected Page Type and Paper Size options appear.
9.
10.
Click Measure.
If necessary, select the appropriate COM port for the DTP41 from the Available Ports
pop-up menu.
3
3-20
Color Calibration
The Instructions field displays instructions for selecting the port.
Instructions
11.
Feed the measurement page into the DTP41, starting with the cyan strip.
Align the page in the measurement page slot of the DTP41, so the appropriate color
column is centered below the alignment mark (see the diagram on page 3-8). Insert the
page about 3 inches, past the front idler rollers, until it rests against the rear drive
rollers.
3
3-21
12.
Calibrating with ColorWise Pro Tools and DTP41
Click Read Strip.
The DTP41 pulls the measurement page through automatically.
13.
Once the measurement page is read, Calibrator instructs you to insert and align the
page again for the next color. Repeat the measurement process for the magenta,
yellow, and black strips.
Status field indicates color
was measured successfully
Previous and Next buttons
let you advance or reverse
to repeat a measurement
A check mark appears on the circle of the color just read, and the Status field indicates
that color was measured successfully.
You can use the Previous and Next buttons on the Measurements window to reverse or
advance to another step in the measurement sequence to repeat a measurement.
3
3-22
Color Calibration
14.
When the Status field indicates that all four color strips have been read successfully,
click Accept Measurements.
15.
In the Measure dialog box, click OK.
Click Accept Measurements
3
3-23
Calibrating with ColorWise Pro Tools and DTP41
16.
In the Calibrator dialog box, click Apply to implement the new calibration set.
17.
In the Information dialog box, click OK.
Click Apply
This completes the Fiery 3850C calibration process.
3
3-24
TO
Color Calibration
RESTORE DEFAULT CALIBRATION MEASUREMENTS
1.
Launch ColorWise Pro Tools and click Calibrator.
2.
Click Restore Device.
3.
Click OK to restore the preset default calibration set (print resolution setting).
Click Restore Device
N OTE : Restore device applies only to the currently selected calibration set.
3
3-25
Using a densitometer
Using a densitometer
ColorWise Pro Tools are designed to work with the EFI Densitometer 100 and the
X-Rite DTP32, both of which are reflection densitometers which feed color
measurements to the Fiery 3850C automatically.
N OTE : Measurements from other densitometers can be input using a simple ASCII file
format (see page C-1).
Setting up the ED-100 densitometer
To use the ED-100 for calibration purposes, you must first set it up for use with your
computer. For complete instructions on setting up the ED-100, see the documentation
that is included with the instrument.
The following illustration shows the different components of the ED-100.
Indicator light
Measure button
Sample aperture
(underneath)
Setting up the X-Rite DTP32 densitometer
Before you calibrate the Fiery 3850C using the X-Rite DTP32, you need to connect,
configure, and calibrate the densitometer to prepare for measuring the printed patches
(see “Calibrating the X-Rite DTP32 densitometer” on page 3-28). For additional
information about setting up and using the DTP32, see the documentation included
with it.
3
3-26
TO
Color Calibration
CONNECT THE
X-R ITE DTP32
TO THE COMPUTER
1.
Turn off the computer.
2.
Plug the square end of the interface cable (looks like a modular phone plug) into the
I/O port on the side of the X-Rite DTP32.
Square connector
3.
Attach the connector to the computer.
For a Windows computer, insert the 8-pin mini-DIN end of the interface cable into
the 9-pin DB9 Connector cable adapter. Insert the 9-pin end into the COM1 or
COM2 port on the computer and tighten the screws. If the available port on your
computer is 25-pin, you must use the 8-pin-to-25-pin adapter.
Unused connector
Square connector
Connect to computer
Connect to adapter
Interface cable
3
3-27
Using a densitometer
For a Mac OS computer, connect the 8-pin mini-DIN plug directly into the serial port
of the computer.
Unused connector
Connect to serial port
N OTE : For Macintosh computers with a USB port (for example, an iMac) you need an
adapter to connect the DTP32 to your computer. See the X-Rite, Inc. web site
(www.x-rite.com) for information on supported adapters.
4.
Use the AC adapter to provide power.
Plug the small connector on the adapter cable into the side of the X-Rite DTP32 and
plug the adapter into a wall outlet.
Small connector
AC adapter
5.
Turn on the computer.
6.
Calibrate the densitometer (see below).
7.
Use ColorWise Pro Tools to calibrate the Fiery 3850C (see page 3-29).
3
3-28
Color Calibration
Calibrating the X-Rite DTP32 densitometer
You will need the black-and-white X-Rite Auto-Cal Strip included with the
densitometer. Calibrating the densitometer does not require ColorWise Pro Tools.
TO
CALIBRATE THE
X-R ITE DTP32
1.
Connect the densitometer to the computer and supply power (see page 3-25).
2.
From the Main Menu on the X-Rite DTP32 display, press the p1 key once to reach p2.
3.
Press the cal key.
Calibrating motor speed is displayed, followed by the words INSERT CAL STRIP.
4.
Insert the arrow end of the X-Rite Auto-Cal Strip into the 35mm slot on the front of
the X-Rite DTP32 until it stops or the roller starts pulling the strip.
Reading appears momentarily, followed by the density values and CALIBRATION OK.
The densitometer automatically returns to the MAIN MENU.
If UNRECOGNIZABLE STRIP appears, repeat the process or try cleaning the strip (see the
X-Rite DTP32 Operating Manual).
5.
Start ColorWise Pro Tools and proceed to calibrate the Fiery 3850C (see the next
section).
Recalibrate the densitometer at least once per month. For critical color, calibrate the
densitometer every time you calibrate the Fiery 3850C. The densitometer may also
warn periodically that it requires calibration.
3
3-29
Calibrating with ColorWise Pro Tools and DTP32/ED-100
Calibrating with ColorWise Pro Tools and DTP32/ED-100
Using the densitometer, you can quickly measure color patches and download these
measurements to the Fiery 3850C using ColorWise Pro Tools Calibrator.
N OTE : Multiple users can connect to one server with ColorWise Pro Tools, but only
one user at a time can use Calibrator. An error message appears if you try to calibrate
when another user is already using ColorWise Pro Tools to calibrate.
ColorWise Pro Tools for Windows and Mac OS computers are fundamentally the
same; differences are noted in this chapter. The windows and dialog boxes you see
illustrated are the Windows version.
N OTE : Changing the calibration has the potential to affect all jobs for all users, so
you may want to limit the number of people authorized to perform calibration.
An Administrator password can be set from the Fiery 3850C Control Panel to control
access to calibration.
TO
CALIBRATE THE PRINTER USING
1.
C ALIBRATOR
Launch ColorWise Pro Tools and connect to the Fiery 3850C.
For instructions on configuring the connection to the Fiery 3850C, see Getting Started.
N OTE : If the connection to the Fiery 3850C from Command WorkStation that also
allows for access to ColorWise Pro Tools is not established, you can directly launch
ColorWise Pro Tools independently of Command WorkStation.
3
3-30
Color Calibration
2.
Click Calibrator.
3.
Select a measurement method.
X-Rite DTP32, X-Rite DTP41, and EFI Densitometer ED-100 appear as the
measurement methods. If none of these options appears, make sure you are connected
to the Fiery 3850C.
4.
Under Check Print Settings, choose the desired calibration set.
If there is more than one option, choose the appropriate calibration set for the print
resolution you use most often.
N OTE : For this calibration to take effect, the calibration set must be associated with one
or more output profiles. The default calibration set is already associated with the
default output profile, so there is no need to make any new associations.
5.
Under Generate Measurement Page, click Print.
3
3-31
6.
Calibrating with ColorWise Pro Tools and DTP32/ED-100
In the Print Options dialog box, choose the Page Type, Paper Size, and Input Tray to
use for the measurement page, and then click Print.
For the densitometer method, select either 34 or 21 Sorted Patches.
In the Input Tray pop-up menu, specify the paper source.
7.
Retrieve the Measurement Page and click Cancel.
8.
Under Get Measurements, click Measure.
9.
If you chose the DTP32 method, proceed to step 13.
10.
If you chose the EFI Densitometer 100 method, select options in the options dialog
box and click Start.
For Page Type, the previously selected page information appears.
For Clicks Per Patch, select how many measurements (clicks of the measurement
button on the EFI Densitometer 100) you want to use for each color patch, up to three
clicks per patch. The average measurement is returned to the Fiery 3850C. More than
one measurement per patch results in a more accurate measurement of that patch, but
it takes more time. If you select multiple clicks per patch, it is a good idea to move the
EFI Densitometer 100 slightly after each measurement while keeping it within the
patch circle.
Checking the Audio Feedback check box instructs the computer to signal you audibly
after each patch measurement is completed. This allows you to take the measurements
without having to see the computer screen. One tone indicates the patch was measured
successfully, while another indicates a measurement error occurred.
3
3-32
Color Calibration
For Port, select the COM port to which the EFI Densitometer 100 is connected.
11.
Measure each color patch using the EFI Densitometer 100.
The Status field of the Mousitometer Measurements dialog box indicates whether the
connection to the EFI Densitometer 100 was successful.
The EFI Densitometer 100 Measurements dialog box also provides a visual map of
your progress.
Begin with Strip A, placing the EFI Densitometer 100 directly on the Measurement
Page and directly over the first color patch. Click the measurement button on the
EFI Densitometer 100 to take a reading. You must click the button the number of
times that you selected for Clicks Per Patch. If you selected multiple clicks per patch, it
is a good idea to move the EFI Densitometer 100 slightly after each measurement
while keeping it within the patch circle.
N OTE : For more accurate measurement, place a plain sheet of paper beneath the
Measurement Page to block underlying colors from being read by the
EFI Densitometer 100.
Continue measuring every color patch on the Measurement Page, being sure not to
skip a single patch.
N OTE : It is critical that you take the measurements in the order outlined in the
EFI Densitometer 100 Measurements dialog box and on the Measurement Page.
12.
When all patches have been measured successfully, click Accept and skip to step 15.
3
3-33
13.
Calibrating with ColorWise Pro Tools and DTP32/ED-100
If you chose the DTP32 method, select the Page Type and Paper Size options you
selected for the measurements page, and click Measure.
Follow the directions in the dialog box that appears for feeding the measurement page
through the X-Rite DTP32.
The Status field displays instructions for selecting the port and feeding the
measurement page through the DTP32 four times, once for each color strip.
3
3-34
Color Calibration
14.
When the Status field indicates that the measurements were read successfully, click
Accept.
15.
In the Measure dialog box, click OK.
16.
In the Calibrator window, click Apply to implement the new calibration set.
17.
In the Information dialog box, click OK.
This completes the calibration process.
TO
RESTORE DEFAULT CALIBRATION MEASUREMENTS
1.
Launch ColorWise Pro Tools and click Calibrator.
2.
Click Restore Device.
3.
Click OK to restore the preset default calibration set.
N OTE : Restore device applies only to the currently selected calibration set.
3
3-35
Calibrating with ColorWise Pro Tools and DTP32/ED-100
Expert Mode
Expert Mode offers two additional options: Print Pages and View Measurements.
With the Print Pages option, you can print a calibration Comparison Page showing the
results of the new measurements with any profile associated with the currently selected
calibration set. You can also create a custom comparison page and save it as a
PostScript or an Encapsulated PostScript (EPS) file called CALIB.PS. Then you can
print the file to the Hold Queue of the Fiery 3850C from your application or
download it to the Hold Queue with Command WorkStation. In addition, you can
create the CALIB.PS file by renaming any job in the Hold Queue using Command
WorkStation.
3
3-36
Color Calibration
With the View Measurements option, you can view the current set of measurements as
a table or as a graph that shows both the measurements and the target curves.
Output profile name
appears here
When more than one profile use the same target, an additional menu called Plot
Against appears in the upper right of the window above. It lists all output profiles that
use the same calibration set. Selecting an output profile from this menu displays the
target curves associated with that profile. If each output profile contains a unique
calibration target, when you switch profiles, the curves displayed also change.
4
4-1
Chapter 4:
ColorWise
Pro Tools
Profile Manager
ColorWise Pro Tools include the following color management tools that give you
flexible control of color printing:
• Calibrator (see Chapter 3)
• Color Editor
• Profile Manager
• Color Setup
ColorWise Pro Tools for Windows and Mac OS computers are fundamentally the
same; differences are noted in this chapter. The windows and dialog boxes illustrated
are the Windows version. For information on installing and configuring a connection
to ColorWise Pro Tools, see Getting Started.
N OTE : If the connection to the Fiery 3850C from Command WorkStation that also
allows for access to ColorWise Pro Tools is not established, you can directly launch
ColorWise Pro Tools independently of Command WorkStation.
Profile Manager
Profile Manager allows you to manage and edit ICC profiles. In the case of the
Fiery 3850C, these profiles are divided into RGB Source, Simulation, and Output
profiles.
• RGB Source contains all monitor profiles resident on the Fiery 3850C. RGB Source
profiles define the source color space for RGB colors processed by the Fiery 3850C.
N OTE : If you use Photoshop 5.x/6.0, you can upload the profile for your selected
working space to the Fiery 3850C and choose that as your RGB Source profile.
4
4-2
ColorWise Pro Tools
• Simulation contains printer profiles used to simulate another device on the
Fiery 3850C.
• Output contains printer profiles that describe the attached printer.
For more information on output profiles, see page 1-6.
N OTE : Changing the Fiery 3850C default profiles affects all jobs for all users, so you
might want to limit the number of people authorized to use ColorWise Pro Tools by
setting an Administrator password.
Several profiles are provided with the Fiery 3850C, and you can create additional
profiles as needed by modifying the existing ones. You can also download profiles listed
below from any workstation to the Fiery 3850C.
RGB Source:
• sRGB (PC)—source color space for a generic Windows computer monitor
• Apple Standard—standard source color space for Mac OS computer monitors with
older versions of ColorSync
• EFIRGB—preset default setting for a Fiery 3850C
Simulation:
• SWOP-Coated—United States press standard
• Euroscale—European press standard
• DIC—Japanese press standard
Output:
• Fiery 3850C 600dpi v1F—profile that describes the printer
• Fiery 3850C 1200dpi v1F—profile that describes the printer at a higher print
resolution
N OTE : For more information on output profiles, see page 1-6.
4
4-3
Profile Manager
Setting the default profiles
The default profiles are applied to all print jobs sent to the Fiery 3850C, unless you
override them using print options. Therefore, the defaults should be the most
commonly used profiles.
TO
SPECIFY A DEFAULT PROFILE
1.
Launch ColorWise Pro Tools and click Profile Manager.
The left side of the screen lists the ICC profiles in the default directory of your
computer. The right side lists each of the three types of profiles on the Fiery 3850C.
The lock icon ( ) to the left of a profile name indicates that the profiles cannot be
deleted and can be edited only if it is saved under a new name. Only Simulation and
Output profiles can be edited.
A small icon to the left of a profile name indicates the default profile for each category
(RGB Source, Simulation, and Output). If you designate a different profile as the
default, the icon appears next to your designated profile. The icon indicating the
default RGB Source and Output profiles looks like a target ( ).
4
4-4
ColorWise Pro Tools
2.
Select the profile you want as the default for a profile type, and click Profile Settings.
3.
In the Profile Settings dialog box, click Default and click Apply.
4.
Click OK.
Profile Settings dialog box
for Simulation (left) and
Output (right)
In the main Profile Manager window, the target icon appears next to the new default
profile you specified.
5.
Repeat steps 2 through 4 for each type of profile.
If no default is set for RGB Source, the RGB Source print option is set to None. If no
default profile is set for Simulation, the CMYK Simulation print option is set to None.
For more information on print options, see Chapter 1.
The Output profile always has a default profile. You can change the Output default by
selecting a preset profile you want as the default and clicking Profile Settings. Or you
can create a new default under a new name by selecting a preset profile and specifying
your choice of the calibration set in the Use Calibration Set pop-up menu and a new
name in the Profile Description menu.
4
4-5
Profile Manager
Downloading profiles
The Fiery 3850C comes with default profiles. You can download additional profiles
from any computer connected to the Fiery 3850C.
TO
DOWNLOAD A PROFILE
1.
Launch ColorWise Pro Tools and click the Profile Manager.
The left side of the main Profile Manager windows lists the ICC profiles in the default
directory of your workstation.
For Windows 9x/Me, the default directory is Windows:System:Color.
For Windows NT 4.0 and Windows 2000, the default directory is Winnt:System32:
Color.
For Mac OS, the default directory is System Folder:Preferences:ColorSync Profiles
for ColorSync 2.0, and System Folder:ColorSync Profiles for ColorSync 2.5 or later.
2.
If the profile you want does not appear, click Browse to go to a different directory.
3.
Browse to the directory containing the profile you want to download and click OK.
4.
When the profile you want to download appears in the list in the main Profile Manager
window, select it.
If the profile is compatible with the Fiery 3850C, a green arrow indicates that the
profile is available for download. Only output device profiles are downloadable to
Simulation and Output. Only input device profiles are downloadable to RGB Source.
4
4-6
ColorWise Pro Tools
N OTE : On Windows computers, the profiles must have an extension of .icc or .icm to
be listed. On Mac OS computers, the profiles must have a file type of profile.
All ICC profiles in the selected directory on your computer are displayed in the list in
the main Profile Manager window. However, because a profile is listed does not
necessarily mean it can be downloaded to the Fiery 3850C.
Simulation profiles should be only profiles of devices for which you want the
Fiery 3850C to match in terms of color output characteristics. Output profiles should
be only profiles of the device to which your Fiery 3850C is connected. Although
CMYK printer profiles can be downloaded as Simulation or Output, consider how
they will be used. If you want the Fiery 3850C prints to look like another printer,
download that profile as a Simulation. If you have a custom profile of the printer your
Fiery 3850C is connected to, download that profile as an Output profile.
5.
Click the arrow to download the profile, and click OK when the download is complete.
The new profile now appears on the list of profiles on the right side of the Profile
Manager main window.
This profile must be associated with one of the predefined names (Source-1 through
Source-10 for RGB Source, Simulation-1 through Simulation-10 for Simulation, or
Output-1 through Ouput-10 for Output) or set as the default before it can be used.
See “Defining profiles” on page 4-8.
N OTE : When an output profile is downloaded, it inherits the calibration target of the
current default output profile.
Editing profiles
You can customize the profiles on the Fiery 3850C to meet your specific needs and the
characteristics of your printer using Color Editor, either directly or through Profile
Manager. See “Color Editor” on page 4-11 for more information on editing profiles.
4
4-7
Profile Manager
Managing profiles
Profile Manager lets you back up profiles to ensure that no custom profiles are lost
when the Fiery 3850C software is updated. You can also upload a copy of a built-in
Fiery 3850C profile to your workstation in order to use it with an ICC-aware
application, such as Photoshop. Profile Manager also lets you delete unwanted profiles.
N OTE : You can back up and delete only those profiles that appear in the main Profile
Manager window without a lock icon next to them. Locked profiles cannot be deleted,
but most can be backed up.
TO
BACK UP PROFILES
1.
Launch ColorWise Pro Tools and click Profile Manager.
2.
Select the profile on the Fiery 3850C to upload.
The arrow in the middle of the Profile Manager window turns green and points to the
left, indicating the profile is available for upload.
3.
Click the green arrow, choose a name and location for the profile, and click Save.
The name will be the file name of the profile, but the profile description will be the
original description, or the one you entered in the Profile Settings dialog box.
N OTE : When saving the profile on a Windows computer, be sure to include the
extension .icm. If the extension is not included, additional dialog boxes appear.
4.
Click OK when you are notified that the profile was successfully uploaded.
Delete profiles to make sure no one uses the wrong profile and to free up disk space on
the Fiery 3850C (although profiles are small and do not take up much space).
TO
DELETE PROFILES FROM THE
F IERY 3850C
HARD DISK
1.
Launch ColorWise Pro Tools and click Profile Manager.
2.
Select the profile you want to delete and click Delete.
A Warning dialog box asks you to confirm deletion.
N OTE : You cannot delete preset profiles, profiles that are currently set as default, or
profiles that are linked to any of the predefined custom names, for example
Simulation-1.
4
4-8
3.
ColorWise Pro Tools
Click Yes to delete the profile.
If you want to delete a profile currently set as the default or associated with a custom
name, click Profile Settings and clear the default option.
Defining profiles
Before you can apply any downloaded or edited profile to a print job, that profile must
be linked to one of the predefined custom names, or you can set the profile as the
default for all print jobs (see setting default profiles, page 4-3). There are 10 names
available for custom profiles—Source-1 through 10 for RGB Source, Simulation-1
through Simulation-10 for Simulation, or Output-1 through Output-10 for Output.
N OTE : A custom simulation profile is used to illustrate this procedure. The same steps
apply for defining custom or downloaded output profiles.
TO
DEFINE A PROFILE
1.
Launch ColorWise Pro Tools and click Profile Manager.
Custom profile
created with
Color Editor
For the purposes of this example, assume DIC-new is a custom simulation profile
created with Color Editor. As you can see, no information is displayed for DIC-new
under the heading “Appear in Driver as.”
4
4-9
Profile Manager
2.
Select DIC-new in the Simulation list, and click Profile Settings or double-click
DIC-new.
3.
Select the “Appear in Driver as” checkbox, choose one of the predefined custom
simulation names (Simulation-1 through Simulation-10) from the pop-up menu, and
then click Apply.
Make sure to choose a name that is not already linked with another simulation. If you
try to define two profiles with the same name, you will get an error message.
For an output profile, the predefined custom names would be Output-1 through
Output-10.
N OTE : While you cannot delete a preset profile, you can use the name of a preset profile
name for your edited profile when you select the “Appear in Driver as” option. This
replaces the preset profile with your own profile.
When you choose Profile Settings for an output profile, the Use Calibration Set
option also appears. You must calibrate the Fiery 3850C with this calibration set
before this option has any effect. If you have never measured for this calibration set,
default measurements will be used. For more information about calibration sets, see
page 3-2.
In Profile Settings, you can also change profile descriptions for all non-locked profiles.
4
4-10
4.
ColorWise Pro Tools
Click OK.
DIC-new will
appear in
driver as
Simulation-1
Simulation-1 now appears under the “Appear in Driver as” column for DIC-new.
Choosing Simulation-1 from the CMYK Simulation option of the printer driver
applies the DIC-new simulation to the print job.
If you do not define a custom simulation profile, your job will print with CMYK
Simulation Profile set to None. If you do not define a custom RGB Source or Output
profile, the default profile is used.
4
4-11
Color Editor
Color Editor
Color Editor allows you to customize simulation and output profiles. You can access
Color Editor directly by clicking its icon in the ColorWise Pro Tools main window, or
indirectly, through the Profile Manager.
Editing profiles
Color Editor allows you to create custom profiles by editing existing simulation or
output profiles and saving the changes as a new profile. With Color Editor, you can
fine-tune a profile on your Fiery 3850C to meet your exact specifications.
N OTE : You cannot edit source profiles; only simulation and output profiles can be
customized.
Color Editor has two Edit Modes for editing output profiles.
• Custom—Edit output profiles and save customized versions of them.
• % Density—View the calibration target, which is one component of the output
profile. You cannot make changes to the calibration target in this window, but you
can import a new target (see page 3-2).
Color Editor also has these Edit Modes for editing simulations.
• Master—Create a custom master simulation that affects all print jobs to which it is
applied, unless a linked simulation exists for the selected combination of simulation
profile, simulation method, and output profile.
• With CRD—Create custom linked simulations. Linked simulations affect the print
job only if the corresponding simulation profile and output profile are selected. If
you choose an output profile for which you have created a custom linked simulation,
that simulation is applied automatically to the job. If you choose a simulation
method or output profile for which there is no custom linked simulation, then the
master simulation is automatically applied. “With CRD” implies that the
conversion is according to the CRD, or rendering style, that you select.
N OTE : If you made edits to a master simulation after you created a linked simulation,
the edits are not applied to the linked simulation.
4
4-12
TO
ColorWise Pro Tools
EDIT A SIMULATION PROFILE IN
PROFILE IN C USTOM M ODE
M ASTER M ODE
OR AN OUTPUT
1.
Launch ColorWise Pro Tools and click Color Editor.
2.
Choose Simulation or Output from the View pop-up menu.
Simulation lists the simulation profiles resident on the Fiery 3850C, and Output lists
the output profiles resident on the Fiery 3850C.
3.
Choose a profile to edit and click Select.
N OTE : You can also open the Profile Manager, select a profile, and click Edit.
4
4-13
4.
Color Editor
For a simulation profile, choose Master from the Edit Mode menu. For an output
profile, choose Custom from the Edit Mode menu.
Eye icons indicate cyan,
magenta, and yellow are
visible and can be edited
You can use this dialog box to view or edit profiles. The graph allows you to view and
manipulate color output values.
N OTE : When you edit an output profile in Custom mode, the Import button at the
bottom of the Color Editor window lets you import a calibration target file (.trg)
created on another Fiery using the previous version of ColorWise. The current version
of ColorWise does not allow you to save a target separately; rather, it saves the target in
conjunction with an output profile.
4
4-14
5.
ColorWise Pro Tools
Select the colors you want to edit by turning colors off and on.
The box with the eye icon to the left of each color indicates whether that color is
visible on the graph and will be affected by changes to the curves, brightness, and dot
gain controls. You can view and edit all four colors (cyan, magenta, yellow, and black)
at once, or any combination thereof. Working with only one or two colors at a time
helps you fine-tune your adjustments. To turn off a color, click its eye icon. In the
example below, cyan and magenta are visible and can be edited.
6.
Click Dot Gain to adjust the dot gain value for simulating press output.
Choose either the North American or European standard. Then use the sliders to select
the desired Dot Gain:
• The range of values for North American at 50% input are from 0% to 50% gain on
output.
• The range of values for European at 40% input are from 0% to 59% gain on output;
the range of values for European at 80% input are from 0% to 20% gain on output.
4
4-15
Color Editor
If you use Dot Gain values, you should apply the settings first so that the curves are
deflected from their straight-line positions. Then make edits to the new curves. When
you adjust Dot Gain values, all existing points on the curve are removed. A warning
dialog box gives you the chance to cancel Dot Gain settings before they are applied.
7.
Use the plus and minus buttons to adjust brightness.
Changes to the brightness are reflected in the curve(s).
8.
You can adjust the curves directly by clicking and dragging points on the curve or by
entering numbers into the input and output boxes.
The graph maps the input percentage to the output percentage. (These percentages
refer to the size of the CMYK halftone dots.) The curve you selected appears, and
points along the curve are marked so you can adjust them.
A curve with this shape
makes a color appear
lighter by reducing
density in the midtones.
A curve with this shape
makes a color appear
darker by adding density
in the midtones.
A curve with this shape
increases contrast.
N OTE : You should adjust points in this way only after you have entered the Dot Gain
and Brightness values.
4
4-16
ColorWise Pro Tools
For greater precision, you can key in percentages in the Input and Output boxes or use
the arrow keys on the keyboard to adjust the curve. To use the arrow keys, you must
first click on the curve to establish an anchor point that serves as a reference.
9.
For an output profile, you can set maximum densities of the C, M, Y, and K channels.
You can enter the maximum densities, called D-Max values, of individual colors for
profiles that support density settings. D-Max settings are not available when editing
Simulation profiles in Master mode.
10.
When you are finished, click Save and enter a name for the new profile.
The new custom profile is saved to the Fiery 3850C with the new name. If you edit
one of the press standard targets (for example, SWOP-Coated, DIC, or Euroscale),
you may want to include the original name as part of the new target name (for
example, DIC-new) to help you remember the source of the new target.
N OTE : Preset default profiles are locked and must be saved with a new name.
Custom profiles must be linked to one of the 10 predefined custom profile names
(Simulation-1 through Simulation-10 for Simulation or Output-1 through Output-10
for Output) in order to be accessible from the printer driver. You can create as many
custom profiles as you want, but a maximum of 10 are available from the printer driver
at any one time. See “Defining profiles” on page 4-8 for information on linking
custom profiles to the predefined custom profile names.
If you set a custom profile as the default, you can access it from the printer driver
without linking it to one of the predefined custom names. Select “Printer’s default”
from the printer driver.
Undoing simulation edits
You can undo the changes you made to simulations (master and linked) in these ways:
• If you have not yet saved your edits, click Done on the Color Editor menu bar,
and do not save the changes.
• If you saved your edits under a new simulation name and want to delete all edits to
the simulation, see page 4-7.
• If you saved your edits under a new simulation name and want to undo the edits to
one or more linked simulation, use the following procedure.
4
4-17
TO
Color Editor
UNDO EDITS MADE TO A CUSTOM LINKED SIMULATION
1.
Launch ColorWise Pro Tools and click either Color Editor or Profile Manager.
2.
Choose Simulation from the View pop-up menu, choose the simulation for which you
want to undo edits, and click Select (Color Editor) or Edit (Profile Manager).
3.
Choose the output profile with which your unwanted edits are linked from the Link
with menu.
4.
Click Revert to Master.
N OTE : Revert to Master makes the curves for one or more linked simulations match the
last saved master simulation. If you have edited and saved changes to a master
simulation, your linked simulations will revert to the changed master, not the original.
4
4-18
ColorWise Pro Tools
5.
Indicate whether you want to revert the currently selected linked simulation only, or
revert all links of this simulation profile, and click OK.
6.
If you choose “For all Edit Modes and all Profile Links,” a warning dialog box appears.
Click OK.
The curves for the linked simulation(s) now match the last saved master simulation
exactly.
Checking edited profiles
You can view a printed sample of a profile before you save it to the Fiery 3850C. To do
so, print one of the following:
• Comparison Page provided with ColorWise Pro Tools, which shows a comparison of
images and colored patches with and without edits
• User-defined CALIB.PS in the Hold Queue
You can create a custom comparison page and save it as a PostScript or Encapsulated
PostScript (EPS) file called CALIB.PS and then print the file to the Hold Queue of
the Fiery 3850C from your application or download it to the Hold Queue with
Fiery Downloader (see page 3-35).
4
4-19
TO
Color Setup
CHECK A PROFILE
1.
Click Test Print from the Color Editor window.
2.
Select a page to print, specify the paper size and input tray (Comparison Page only),
and click Print.
For Comparison Page, specify the paper size (LTR/A4 or 11 x 17/A3) in the Paper Size
pop-up menu. In the Input Tray pop-up menu, specify the paper source.
Color Setup
Color Setup is used to set the default ColorWise settings for the Fiery 3850C. To
access Color Setup, click its icon in the ColorWise Pro Tools main window.
Setting default ColorWise options
Color Setup allows you to configure the default color management settings for the
Fiery 3850C. These settings are applied to all print jobs sent to the Fiery 3850C,
unless a user overrides them for an individual job by changing settings in the printer
driver. These default settings can also be overridden using Command WorkStation or
Fiery WebSpooler. Color Setup maintains a connection to the Fiery 3850C, so changes
made in Profile Manager appear automatically. In addition, the defaults set in Color
Setup are automatically reflected in other Fiery 3850C tools that list default settings.
You can also reset the Fiery 3850C to its factory default settings by clicking the Factory
Default button in the lower-left corner of the Color Setup window.
4
4-20
ColorWise Pro Tools
The options in Color Setup are arranged in a pattern representing the flow of color
processing that takes place on the Fiery 3850C.
For those color options that offer multiple choices, click the down arrow and make
your selection from the pop-up menu that appears. Other options are selected by
selecting a checkbox next to the option name. Once you have made your changes, you
must click OK or Apply for the changes to take effect. Clicking OK sets the new
defaults and closes the Color Setup window. Clicking Apply sets the new defaults and
keeps the Color Setup window open. Clicking Cancel closes the Color Setup window
without applying any changes to the default settings.
For most users, the factory defaults result in optimal color output.
5
5-1
Chapter 5:
Working with
Color in
Applications
Working with color
This chapter provides guidelines for defining colors in your documents to produce the
results you want. The following topics are covered:
• Factors affecting how you work with color
• Choosing colors in applications that rely on GDI or QuickDraw to communicate
data to the printer driver, such as presentation and word processing applications
• Choosing colors in applications that have the ability to write their own PostScript,
such as some page-layout, illustration, and pixel-editing applications
Working with color
The two main factors that influence how you work with color in the creation of
documents are the application you use and the final print device. Applications vary in
the methods they provide for choosing colors and in the way they transmit color data
to the print device.
• Office applications, such as presentation software, spreadsheets, and word processing
programs, use the RGB color model. They typically transmit only RGB data to the
print device.
• Illustration applications use both the RGB and CMYK color models but typically
transmit only CMYK data to the print device.
• Pixel-editing applications use both the RGB and CMYK color models. They also
transmit both RGB and CMYK data to the print device.
The type of printing you plan for the document—short-run color printing on the
Fiery 3850C versus color proofing for eventual printing on an offset press—
determines the way you define colors in addition to the print option settings you
choose.
• For short-run color printing on the Fiery 3850C, use any application and define
colors in either RGB or CMYK. If your application supports it, you can also choose
colors from the PANTONE color library. Placed images may be limited to the RGB
color space. Choose the appropriate settings for print options affecting color output
(see page 1-1).
5
5-2
Working with Color in Applications
• For color proofing, use an application that writes its own PostScript and define
colors in RGB, CMYK, or choose colors from the PANTONE color library. Placed
images can also be defined in RGB or CMYK. Choose the appropriate settings for
print options affecting color output (see page 1-1).
Color reference pages
Fiery 3850C user software includes several types of color reference pages that let you
see the range of colors that can be printed on your printer. For predictable color, use
the color reference pages when defining the colors in your document.
• RGB Color Reference—a Microsoft Word file and a Microsoft PowerPoint file that
let you view the colors available in the standard palettes of office applications and see
how those colors print on the Fiery 3850C (see page 5-4).
• CMYK Color Reference—an 11-page downloadable PostScript file of CMYK color
patches (see page 5-6).
• PANTONE Coated Color Reference—a 19-page downloadable PostScript file of
color patches showing CMYK equivalents of PANTONE Coated colors. This file
prints differently depending on the setting of the Spot Color Matching option
(see page 5-6).
In addition, you can print RGB, CMY, and PANTONE color charts from the
Fiery 3850C Control Panel.
5
5-3
Office applications
Office applications
The Fiery 3850C must receive PostScript instructions to print an image or a
document. Many applications do not create these PostScript instructions, relying on
the printer driver to create them. Included in this category are most word processors,
spreadsheets, and presentation applications. These applications use Windows Graphics
Device Interface GDI to display and print when running Windows, and Apple
QuickDraw to display and print when running Mac OS. We refer to these GDI and
QuickDraw applications as “office applications.”
All office applications handle color similarly, using the same RGB color model used for
the color monitor display. Most office applications allow you to choose colors from a
palette of preselected colors; some allow you to add new colors to the palette using a
color picker. Although some applications allow you to specify color using the CMY,
HSL, and HSV color models, these applications always send RGB color data to the
Fiery 3850C. (An exception to this is a CMYK EPS file placed in the document, which
is sent as CMYK data.)
When working with color in office applications, keep in mind that:
• The range of colors that can be displayed in RGB on your monitor is much larger
than the range of colors that can be printed on your printer. When you print the
document, out-of-gamut RGB colors are mapped to colors your printer can
produce.
• Office applications send only RGB data to the Fiery 3850C. You control the
rendering style of the color conversion with your selection of a CRD.
Each CRD uses a different color rendering style, and therefore has a different way of
mapping unprintable colors to the color gamut of your printer. Fiery 3850C color
rendering styles are described on page 1-4.
5
5-4
Working with Color in Applications
Choosing colors in office applications
Two RGB color reference pages, a Microsoft Word file and a Microsoft PowerPoint file,
are provided with your Fiery 3850C user software. Print these files using different
CRDs to see how the colors appear when printed to the Fiery 3850C. For best results,
print the color reference page using the same print options you plan to use for your
final document. Select the colors you want to use from the printed version of the RGB
color reference page, and then use those colors in your document.
RGB Color Reference (Microsoft PowerPoint)
5
5-5
PostScript applications
PostScript applications
Most applications used for illustration, pixel editing, and page layout can create the
PostScript information they send to PostScript printer or save in PostScript files.
Illustrator, Photoshop, PageMaker, QuarkXPress, and Macromedia FreeHand are all
PostScript applications.
PostScript applications work with color in many different ways. Most allow you to
choose process colors (by entering percentages for cyan, magenta, yellow, and black),
in addition to named colors from a custom color system, such as PANTONE. When
you print composites, these applications send process-color equivalents for named spot
colors to the printer. In some applications, you can also choose colors using the RGB,
HSB, HSL, or other color models.
Generally, PostScript applications send color information to the Fiery 3850C as
CMYK data. An exception to this is an RGB image placed in the document, which is
sent directly to the Fiery 3850C (unless you specify special color management settings
in the application.) In addition, some PostScript applications that allow you to define
colors in RGB or other color models can also send data to the Fiery 3850C in those
color spaces.
Color controls in PostScript applications are typically designed for printing on an
offset press, and some adjustments are required for printing to the Fiery 3850C.
Displayed versions of colors you choose in these applications may not match
Fiery 3850C output exactly, and named colors may not print accurately on the
Fiery 3850C, since these colors typically require custom inks.
Choosing colors in PostScript applications
With PostScript applications, you can create colors using any of the color models
supported by the application. All PostScript applications support CMYK; some also
support RGB and other color models based on monitor display values. PostScript
applications also allow you to choose named colors using one or more color libraries,
such as PANTONE (see page 5-6).
You should use swatch color matching to ensure predictable color printing results with
the Fiery 3850C or to match the Fiery 3850C color output to colors produced by
other print devices.
Working with Color in Applications
Swatch color matching
Fiery 3850C user software includes several color reference pages (see page 5-2). By
choosing colors from these reference pages, you can ensure that you get the same color
from your printer. For best results, calibrate the Fiery 3850C before printing the
reference pages.
N OTE : Swatch color matching does not match monitor colors to printed colors. For
this, you must use a color management system and calibrate your monitor.
Using the CMYK Color Reference
The CMYK Color Reference included with your Fiery 3850C user software lets you
see how various cyan, magenta, yellow, and black combinations look when printed on
your printer.
Yellow: 0
Black
0
25 50 75
Magenta
0
0
10
10
20
20
30
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
10
10
20
20
30
30
40
40
Cyan
5
5-6
50
50
60
60
70
70
80
80
90
90
100
100
page 1
CMYK Color Reference
To print the CMYK Color Reference, download the file to the Fiery 3850C. The
printed pages display groups of color patches in graduated combinations of yellow,
magenta, and cyan, and smaller patches that include 25%, 50%, and 75% black. Refer
to these pages to pick colors and specify process color values in your application. For
the location of the file on the User Software CD, see Getting Started.
PANTONE Coated Color Reference
The PANTONE Coated Color Reference included with your Fiery 3850C user
5
5-7
PostScript applications
software can help ensure predictable results with colors chosen from the PANTONE
color library.
The information printed by the PANTONE Coated Color Reference depends on the
setting of the Spot Color Matching setting.
• On—Prints swatches of the closest equivalents of PANTONE colors your printer
can produce. The equivalent PANTONE color name/number is printed below each
swatch.
• Off—Prints swatches of the CMYK equivalents of PANTONE colors as defined
by PANTONE. (These are the same CMYK values defined in applications that
include PANTONE libraries.) The CMYK values used to produce the color, as well
as the PANTONE color name/number, are printed below each swatch.
To print the PANTONE Coated Color Reference, download the file to the
Fiery 3850C. (For the location of the file on the User Software CD, see Getting
Started.) If the default Spot Color Matching setting on the Fiery 3850C is not the
setting you want to use for printing the PANTONE colors, download the file to the
Hold queue. Then use Fiery WebSpooler or Command WorkStation to override the
Spot Color Matching setting.
Default output profile
The default output profile consists of both a profile for your printer, describing its
color characteristics, and a calibration target that describes the expected behavior of the
printer at a particular print resolution (600x600 dpi or 1200x1200 dpi). For more
information on output profiles, see page 1-6.
In certain cases, you may want to customize the default output profile to achieve
particular color effects (see page 4-11). When you do so, the new customized output
profile is applied to all data in the print job. You can also use ColorWise Pro Tools to
download your own output profile to the Fiery 3850C (see page 4-5). Downloaded
output profiles are at first associated with the default calibration target.
CMYK simulation
If you use the Fiery 3850C to print proofs for an offset press job or simulate another
print device, choose the appropriate CMYK Simulation Profile and CMYK Simulation
Method print option settings (see page 1-6).
6
6-1
Chapter 6:
Office
Applications
Working with office applications
The Fiery 3850C ColorWise color management system provides complete color
management for jobs printed from office applications. This chapter provides
instructions for printing color documents from GDI and QuickDraw applications
such as presentation, spreadsheet, and word processing programs. You can use these
instructions with the Microsoft Office applications.
Working with office applications
Before printing from these applications, make sure the appropriate printer driver and
the Fiery 3850C PPD are installed on your computer, as described in Getting Started.
Defining colors
Office applications use the RGB color model. For instructions on defining colors, see
“Choosing colors in office applications” on page 5-4.
The only way to use CMYK or PANTONE colors is to define them in EPS files with
an illustration or page layout application, and then place these files into office
documents. Colors in EPS files are preserved until they reach the Fiery 3850C
(assuming no PostScript Color Management information was included.)
Office applications lack finesse when displaying EPS files, so use these files only if RGB
colors are not practical in your specific workflow. EPS files are also useful when using
large or complex images that need to be printed at full resolution or cannot fit some
Microsoft Office configurations with limited memory.
Working with imported files
Although your application may allow you to import a variety of file formats, EPS files
are recommended for all raster images you want to import; some applications have
printing problems when using file formats such as TIFF and PICT.
N OTE : You may have to perform a “custom install” of your office application if you are
unable to import EPS elements.
6
6-2
Office Applications
Although there are no color management options within office applications, color
conversions do occur when you import images or page elements that were not defined
in RGB. To avoid such conversions with imported files, use the EPS file format for
artwork that is to be imported into office applications.
All RGB images placed in a document are affected by RGB Source and Rendering
Style settings.
Tip for advanced users
If you place multiple RGB images, mixed non-photographic and photographic, a
single CRD may not be suitable for all the images. In this case, you may want the
photographic images to bypass the CRD altogether. To accomplish this, save the image
in CMYK mode with a pixel-editing application such, as Photoshop, and perform
color correction. Save the image as a Photoshop EPS and import it into the document.
Selecting options when printing
There are few differences among office applications with regard to Fiery 3850C
printing. The instructions in this chapter apply to all office applications. Use the
instructions in Chapter 1 to specify print options and color management settings. To
specify these options, you must use a PostScript Level 2 (or later) printer driver, such as
an Adobe PostScript Printer Driver.
Because office applications send RGB data to the Fiery 3850C, your choices of
RGB Source and Rendering Style settings are important. Be sure to specify the
appropriate CRD for the color effect you want (see “Rendering styles” on page 1-4).
Output profiles
All color data in the job is affected by the output profile on the Fiery 3850C. This
profile may be the one designed for your printer and shipped with the Fiery 3850C, or
it may be a custom profile created at your site (see page 1-6). If necessary, print the Test
Page to see which profile is currently resident on the Fiery 3850C.
7
7-1
Chapter 7:
Adobe
Photoshop
Specifying color settings
This chapter covers features of Adobe Photoshop versions 6.x and 5.x for Windows
and Mac OS. The illustrations show only Mac OS dialog boxes, but the information
and instructions apply equally to the Windows version of Photoshop.
Specifying color settings
The following sections outline the recommended color settings for Photoshop 6.x
and 5.x in a Fiery 3850C workflow.
These color settings include:
Working Spaces—Default color spaces to use when working with RGB and CMYK
documents. ICC color profiles describe the gamut and color characteristics of these
working spaces.
Color Management Policies (Photoshop 6.x) or Profile Mismatch Handling
(Photoshop 5.x)—Instructions that tell Photoshop what to do when it encounters
color data from a color space other than the specified working space.
Photoshop 6.x color settings
Photoshop 6.x uses a sophisticated color management system that handles document
colors for a variety of color-managed workflows. By customizing color settings, you
can specify the amount of color management you want to use while working in
Photoshop 6.x.
7
7-2
TO
Adobe Photoshop
SPECIFY COLOR SETTINGS FOR
P HOTOSHOP 6. X
1.
Choose Color Settings from the Edit menu.
2.
Select Advanced Mode.
In Advanced Mode, a more extensive list of options is displayed.
7
7-3
3.
Specifying color settings
Choose the desired working space profile for each color mode in the
Working Spaces area.
Use the following guidelines for specifying working spaces:
• For RGB, choose the profile for the default RGB color space used by the
Fiery 3850C. In most cases, this is EFIRGB. Consider sRGB if you usually
view images on a generic PC monitor or rely on a Windows operating system
to manage color on your monitor. If you choose sRGB as a working space, you
must print with the ColorWise RGB Source option set to sRGB.
New RGB documents you create in Photoshop will use this working space.
N OTE : EFIRGB is set as the default RGB Source color space on the Fiery 3850C.
No matter what RGB space you select, make sure it is available on the Fiery 3850C.
•For CMYK, choose a profile that describes your target press (such as SWOP) if you
are a prepress user. If you are an office user printing final output, choose an output
profile that describes the printer connected to the Fiery 3850C. To use a devicespecific output profile, you must first upload the profile from the Fiery 3850C to
your computer. New CMYK documents you create in Photoshop will use the
specified working space.
• For guidelines on specifying Gray and Spot working spaces, see your Photoshop 6.x
documentation.
4.
In the Color Management Policies area, choose policies for handling documents
without embedded profiles or with embedded profiles that differ from the working
space.
Unless you are an advanced color user, we recommend that you choose Off from the
RGB, CMYK, and Gray menus. This option discards the original profile embedded in
a document if it differs from the specified working space, while preserving the numeric
color values in the document.
For Profile Mismatches, select Ask When Opening. This option displays an alert
message that lest you override the specified policy behavior (Off ) when opening
documents or importing color data.
5.
In the Conversion Options area, specify settings for converting between color spaces.
Choose Adobe (ACE) from the Engine menu to use the built-in color management
engine for Photoshop.
7
7-4
Adobe Photoshop
Choose a rendering intent from the Intent menu that will optimize the color quality of
the conversion. For guidelines on choosing the rendering intent, see your Photoshop
6.x documentation.
Select Use Black Point Compensation and Use Dither (8-bit/channel images) to
optimize the quality of color conversions.
6.
Clear the Desaturate Monitor Colors By and Blend RGB Colors Using Gamma options in
the Advanced Controls area.
Deselecting these options helps optimize the matching of the monitor display to
printed output.
7.
Click Save to save the current group of color settings.
The Save dialog box appears.
8.
Name the settings file, accept the default saved location, and click Save.
You can switch to your saved settings at any time by choosing the group name from the
Settings menu at the top of the Color Settings dialog box.
Photoshop 5.x
Because Photoshop 5.x uses a sophisticated color management system, there are several
setup steps you should take before you begin working. These steps include:
• Calibrating your monitor
• Adjusting Photoshop color settings
• Setting ColorSync defaults (Mac OS only)
For information on monitor calibration and color setup in Photoshop (version 5.02
or later), open the Adobe Color Management Assistant (Mac OS) or Adobe Color
Management Wizard (Windows) by choosing Help>Color Management. (See your
Adobe Photoshop 5.x documentation or the Adobe Technical Guidelines for
Photoshop at www.adobe.com.)
Photoshop 5.x color settings
The settings you select in the Photoshop 5.x control panel and three setup dialog boxes
control how color is managed when you open and save RGB and CMYK images. You
7
7-5
Photoshop 5.x
should calibrate your monitor using the Adobe Gamma control panel and specify
settings in the Photoshop’s Profile Setup, RGB Setup, and CMYK Setup dialog boxes
before you begin working with images in Photoshop.
N OTE : The Adobe Gamma control panel performs similar functions on both Windows
and Mac OS computers.
Adobe Gamma control panel
You can use the Adobe Gamma control panel to create and customize ICC profiles for
your monitor. Photoshop properly displays images on your monitor by compensating
between your chosen working space (see the following section on RGB Setup) and the
description of your monitor defined by its profile. If you do not create a profile in the
Adobe Gamma control panel that corresponds to your monitor, you may encounter
poor monitor-to-print matching.
N OTE : If a profile for your particular monitor is not available, use the Adobe Gamma
control panel setup Assistant (Wizard on Windows) to customize an available profile
that at least has the same type of phosphors as your monitor.
7
7-6
Adobe Photoshop
Display the Adobe Gamma control panel by double-clicking its icon in either the
Windows or Mac OS Control Panel. If you have not yet selected your monitor profile
or want to customize your current profile, click the Assistant (Wizard on Windows)
button.
7
7-7
Photoshop 5.x
Profile Setup
From the Photoshop 5.x File menu, choose Color Settings>Profile Setup.
In the Embed Profiles area, select all boxes to embed the appropriate ICC profile when
saving a file. By embedding a profile during the saving process, Photoshop can link a
color space (working space) definition with that file for future use. When you open an
image that already contains a profile, Photoshop can alert you as to which color space
the file was saved in. Be aware that you should avoid conversions between color spaces
as much as possible (each conversion results in loss of color information).
In the Assumed Profiles area, choose Ask When Opening from the RGB and CMYK
menus. When you open files that do not contain an ICC profile, you can convert the
file to your current Photoshop working space setting or leave the file unconverted—the
preferred choice, but make sure the current Photoshop working space setting matches
the intended color space of the image.
In the Profile Mismatch Handling area, choose Ask When Opening from the RGB and
CMYK menus. When you open a file containing an ICC profile that does not match
your current Photoshop working space setting, you have the choice to convert from the
embedded profile or not. If you want to preserve the color integrity of the source
image, do not convert. When you open the image, immediately go to RGB or CMYK
Setup to specify the working space for the image. If your working space is set to your
output device, you may want to convert.
7
7-8
Adobe Photoshop
RGB Setup
Photoshop 5.x allows you to simultaneously use two RGB spaces, one for the monitor
and one for the Photoshop RGB working space. The monitor RGB space setting does
not affect the image data in the file; it affects only the way the image is displayed on
the monitor. Even if an RGB image has been prepared with different monitor settings,
it is still correctly displayed on your monitor, without changes to the original values in
the file.
From the Photoshop 5.x File menu, choose Color Settings>RGB Setup.
Select this option
Select this option
From the RGB menu, choose your current Photoshop RGB color space, which should
reflect the color space of most RGB files you will be opening. If you create new RGB
files or you want to standardize your RGB files, choose EFIRGB.
Click Load if the file is not visible in the RGB pop-up menu. You can load the
Calibrated RGB setup file, EFIRGB ICC ColorSync file, or EFIRGB.ICM file.
All describe the same RGB space and automatically set the Gamma, White Point,
and Primaries. You may consider sRGB if you usually view images on a generic PC
monitor, or if you rely on a Windows operating system to manage color on your
monitor. If you choose sRGB as a working space, make sure to print with the
Fiery 3850C RGB Source option set to sRGB.
N OTE : EFIRGB is set as the default RGB Source color space on the Fiery 3850C. No
matter what RGB space you select, make sure it is available on the Fiery 3850C. For
more information on downloading RGB Source profiles to the Fiery 3850C, see
Chapter 4.
7
7-9
Photoshop 5.x
The Monitor area shows the currently selected profile in the Adobe Gamma control
panel. Select both the Display Using Monitor Compensation and Preview options.
CMYK Setup
From the Photoshop 5.x File menu, choose Color Settings > CMYK Setup.
Check this option
Select the Preview option. For CMYK Model, select ICC. Previous versions of
Photoshop used Photoshop Separation Tables, and you can load them for
Photoshop 5.x. However, you will get better results using ICC profiles and the built-in
color management system.
In the ICC Options area, choose from the Profile, Engine, and Intent menus.
• For Profile, choose your final output printer ICC profile. Prepress users should
choose an ICC describing their target press, such as SWOP. Office users should
choose the ICC profile describing the printer connected to the Fiery 3850C. In this
case, we recommend you leave images in RGB and allow the Fiery 3850C to convert
them to CMYK. However, if you want to use Photoshop to convert RGB images to
the CMYK color space of the Fiery 3850C, you must first upload one of the output
profiles from the Fiery 3850C to your computer (see page 4-7), and then select it in
Photoshop CMYK Setup. The output profile for the Fiery 3850C is also available on
the User Software CD (see Getting Started).
N OTE : For information about uploading and downloading profiles, see Chapter 4.
• For Engine, choose Built-in so the Photoshop engine will be used.
• From Intent, choose Perceptual (Images), which is appropriate for photographs
normally edited in Photoshop. The Intent setting is used only when you convert
between color spaces.
7
7-10
Adobe Photoshop
It is often better to select the Black Point Compensation option. With many ICC
profiles, this check box has no effect. However, when it does, it has a dramatic effect on
the dark areas of your image. If you want this effect, leave Black Point Compensation;
if not, clear the selection.
ColorSync defaults
You should have ColorSync 2.5.x or later installed on your Mac OS computer. The
ICC profiles used by ColorSync are saved in System Folder:ColorSync Profiles. From
the Apple menu, choose Control Panel>ColorSync.
Use the following settings:
• System Profile—choose the customized ICC profile for your monitor. Set up the
Adobe Gamma profile to ensure that your monitor profile is present (Mac OS only).
• RGB default—choose the same RGB working color space you set in Photoshop 5.x.
N OTE : The System Profile is the same one used in your monitor calibration and your
Monitors and Sounds control panel.
• CMYK default—choose the same CMYK color space you set in Photoshop 5.x.
• Preferred CMM—choose LinoColor CMM (both ColorSync 2.0 and Microsoft
ICM 2.0 are based on this color management module).
7
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Photoshop 5.x
Defining colors
You can choose colors in Photoshop with various color models, including HSB, CIE
Lab, RGB, and CMYK. You can also choose named colors from the PANTONE
Coated color library. For best results, use the color definition methods described in
Chapter 5.
Saving files for importing into other documents
Before saving a file, perform any rotating, cropping, and resizing needed. This speeds
processing when printing from the application in which the image is placed.
We recommend you use EPS or TIFF file formats to save RGB images that will be
imported into other documents and printed to the Fiery 3850C. You can import EPS
and TIFF files into virtually all page layout applications.
N OTE : Although TIFF files display better when imported into other applications, their
color and resolution characteristics may be altered by the application into which they
are imported. EPS files are unaffected.
Choose Photoshop EPS or TIFF
7
7-12
Adobe Photoshop
In the EPS Options dialog box, choose binary encoding and do not select PostScript
Color Management (see the following section for more information on PostScript
Color Management). Do not include transfer functions or halftone screens. A TIFF
preview is compatible with both Windows and Mac OS computers.
Do not select these options
N OTE : If you choose JPEG encoding, save a backup of the original image saved with
binary encoding until you see the printed results of the JPEG file. Occasionally, the
compression used for JPEG encoding produces unwanted artifacts. If you see
unexpected results in the printed output of a JPEG file, revert to a binary version.
If you experience problems printing the document in which you place the image,
substitute an ASCII version of the same image, and print the document again. Binary
encoding is much more compact than ASCII encoding, but occasionally causes
printing problems with some system configurations.
Advanced tips for using PostScript color management
Use the following information to implement alternate, more complex, color workflows
with Photoshop.
Saving EPS Documents with PostScript Color Management
Selecting the PostScript Color Management option when saving either a CMYK or
RGB EPS file prompts Photoshop to embed PostScript color information—which is
independent of ICC profiles—in the resulting document. This information is intended
for PostScript devices like the Fiery 3850C.
7
7-13
Photoshop 5.x
Printing RGB EPS Files Saved with PostScript Color Management
When you print an RGB EPS file that contains an embedded profile to the
Fiery 3850C, the working space information from the embedded RGB profile can be
used as an RGB source definition for Fiery 3850C CRDs. To use the source color space
information from the embedded profile with Fiery 3850C CRDs, choose None as the
Fiery 3850C RGB Source when you print. This applies when you print directly from
Photoshop, or when the same RGB EPS file is output from another application.
To override the embedded profile in an EPS file using an RGB Source definition made
available by the Fiery 3850C, choose anything except None as the Fiery 3850C RGB
Source Profile.
Printing CMYK EPS files saved with PostScript Color Management
If you select the Photoshop PostScript Color Management option when you save a
CMYK EPS image, Photoshop embeds PostScript color information that defines the
CMYK source color space of the image. When you print a CMYK EPS file that
contains PostScript color information to the Fiery 3850C, CRDs are used instead of
ColorWise CMYK Simulation setting. Make sure to choose the appropriate setting for
the Rendering Style option.
Selecting options when printing
You can print RGB or CMYK images from Photoshop.
• When you print an RGB image, you choose whether the conversion to CMYK is
performed by the Fiery 3850C (using a CRD), by PostScript (using PostScript Color
Management), or by the Photoshop built-in color management engine (by choosing
an Output profile from the Space menu).
• When you print a CMYK image, you can print composites or color separations.
N OTE : You cannot use the Combine Separations feature of the Fiery 3850C to
recombine separations printed from Photoshop.
7
7-14
Adobe Photoshop
Printing RGB images
Use the following instructions to print RGB images.
Choose RGB Color
as the color space
Choose an encoding method
Do not select PostScript
Color Management
Choose RGB Color from the Space pop-up menu. Any other setting causes Photoshop
to convert image data to that color space before sending it to the Fiery 3850C. With
the AdobePS printer driver for Mac OS, these options appear in the Adobe Photoshop
pane of the Print dialog box.
Printing CMYK images
Use the following instructions to print CMYK images.
Choose an encoding method
Choose CMYK Color
as the color space
7
7-15
Photoshop 5.x
Choose CMYK Color from the Space pop-up menu. Any other setting causes
Photoshop to convert image data to that color space before sending it to the
Fiery 3850C. (With the AdobePS printer driver for Mac OS, these options appear in
the Adobe Photoshop pane of the Print dialog box.)
N OTE : If you choose JPEG encoding, save a backup of the original image with binary
encoding until you see the printed results of the JPEG file. Occasionally, the
compression used for JPEG encoding produces unwanted artifacts. If you see
unexpected results in the printed output of a JPEG file, revert to the binary version.
Advanced tips for printing with Photoshop PostScript
color management
Use the following information to implement alternate, more complex, color workflows
with Photoshop.
Printing RGB images with Photoshop PostScript Color Management
If you select an RGB color space and decide to use PostScript Color Management from
the Photoshop pane of the printer driver, Photoshop sends RGB data to the
Fiery 3850C along with PostScript color information defining this RGB color space.
Remember that when you select PostScript Color Management, a CRD will be used to
perform color conversions to CMYK.
N OTE : The included RGB source color space information is overridden by the
Fiery 3850C RGB Source option unless it is set to None. With Photoshop 5.x, the
Fiery 3850C Rendering Style option specified will take effect if the Fiery 3850C RGB
Source Profile option is set to None.
For fastest print times, choose JPEG encoding, but check printed output carefully
for unwanted artifacts that can appear as a result of JPEG compression. If you
see unexpected results in the printed output, print the job again using Binary or
ASCII encoding.
Choose other print options you want to use (see Chapter 1).
7
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Adobe Photoshop
Printing CMYK images with Photoshop PostScript Color Management
If you select a CMYK color space and decide to use PostScript Color Management
from the Photoshop pane of the printer driver, Photoshop sends CMYK data to the
Fiery 3850C along with PostScript color information defining this CMYK color space.
Remember that when you select PostScript Color Management, a CRD will be used to
perform color conversions to the CMYK color space of the Fiery 3850C.
As for the destination color space for the CRDs, the CMYK image is converted to the
CMYK color space of the selected output profile.
The Spot Color Matching setting has no effect because Photoshop converts
PANTONE colors to CMYK values when you work in CMYK mode.
• If the image was separated for an offset press standard, apply the corresponding
CMYK Simulation setting. For example, if the image is separated for SWOP, choose
SWOP as the CMYK Simulation setting.
• If Photoshop is configured for a custom separation using ICC profiles, select the
corresponding profile from the CMYK Simulation print option for the
Fiery 3850C.
N OTE : The above custom simulation setting requires that the same profile used for
separation in Photoshop also resides on the Fiery 3850C. For more information on
downloading CMYK Simulation profiles to the Fiery 3850C with
ColorWise Pro Tools, see page 4-5.
7
7-17
Photoshop 4.x
Photoshop 4.x
A special feature of Photoshop allows you to save RGB EPS (PostScript) images that
include independent source color space information. This feature is sometimes referred
to as “PostScript Level 2 tagging” or “RGB tagging.”
You define the source color space to apply to RGB EPS images by specifying a Monitor
Setup in Photoshop. However, this Photoshop-specific source color space definition is
overridden by the RGB Source print option setting located in the Print dialog box
under Printer Specific Options, unless you set the latter to Off (see page 1-5).
Defining colors
You can choose colors in Photoshop with various color models, including HSB, CIE
Lab, RGB, and CMYK. You can also choose named colors from the PANTONE color
library in Photoshop. For best results, use the color definition methods described in
Chapter 5.
Saving files for importing into other documents
Before saving an RGB EPS file, check the Photoshop Monitor Setup. This setting
defines the RGB source color space information that will be included in the RGB EPS
image. You can override this source color space with the RGB Source setting in the
Print dialog box under Printer Specific Options (see page 1-5).
Before saving a file, perform any rotating, cropping, and resizing needed. This speeds
processing when printing from the application in which the image is placed.
7
7-18
Adobe Photoshop
We recommend you use the EPS or TIFF file formats to save RGB images that will be
imported into other documents and printed to the Fiery 3850C. EPS and TIFF files
can be imported into virtually all page layout applications.
Choose Photoshop EPS or TIFF
In the EPS Format dialog box, choose binary encoding and do not include transfer
functions or halftone screens. A TIFF preview is compatible with both Mac OS and
Windows computers.
N OTE : If you experience problems printing the document in which you place the
image, substitute an ASCII-encoded version of the same image, and print the
document again. Binary encoding is much more compact than ASCII encoding, but
can cause printing problems with some system configurations. If you choose JPEG
encoding, save a backup of the original image with binary encoding until you have
seen the printed results of the JPEG-encoded file. Although not often, at times the
compression used for JPEG encoding may produce unwanted artifacts in the file. If
you see unexpected results in the printed output of a JPEG-encoded file, use a binaryencoded version instead.
7
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Photoshop 4.x
Selecting options when printing
You can print RGB or CMYK images from Photoshop.
• When you print RGB images, you choose whether the conversion to CMYK data is
performed by the Fiery 3850C (using a CRD), by PostScript (using PS Color
Management), or by Photoshop (using Photoshop separation settings).
• When you print RGB images, you can choose whether a color conversion is
performed by the Fiery 3850C using a CRD or by Photoshop using Photoshop’s
separation settings.
• When you print CMYK images, you can print composites or color separations.
N OTE : You can not use the Combine Separations feature of the Fiery 3850C to
recombine separations printed from Photoshop.
Printing RGB images
Use the following instructions to print RGB images.
Select to print using
the Fiery 3850C CRD
Select to print using
Photoshop separation settings
Choose whether to print in RGB or CMYK. (With the AdobePS printer driver for
Mac OS, these options appear in the Adobe Photoshop pane of the Print dialog box.)
• If you select Print in RGB, Photoshop sends RGB data to the Fiery 3850C and a
CRD performs color conversion. Choose the appropriate print option settings for
RGB data (see Chapter 1).
7
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Adobe Photoshop
N OTE : The Fiery 3850C Rendering Style option specified will take effect if the
Fiery 3850C RGB Source Profile option is set to None.
• If you select Print in CMYK, Photoshop performs a color conversion and sends
CMYK data to the Fiery 3850C. With this setting, RGB Source, Rendering Style,
and Spot Color Matching settings have no effect.
For printing in CMYK, consider these Photoshop separation settings:
• If Photoshop is configured for separating to an offset press standard, apply the
corresponding CMYK Simulation setting. For example, if Photoshop is configured
for separating to SWOP, choose SWOP as the CMYK setting. If you apply a CMYK
Simulation setting (other than None) to the job, choose Color Proofing (Photo) or
Color Proofing (Solid) for the Rendering Style setting (see page 1-4).
• If Photoshop is configured for a custom separation (not a press standard), choose
None as the CMYK Simulation setting, or choose the corresponding custom
simulation profile on the Fiery 3850C if one has been downloaded with the Profile
Manager. For more information on the Profile Manager and ColorWise Pro Tools,
see Chapter 4.
N OTE : If you choose JPEG encoding, save a backup of the original image with binary
encoding until you see the printed results of the JPEG-encoded file. At times, the
compression used for JPEG encoding may produce unwanted artifacts in the file. If
you see unexpected results in the printed output of a JPEG-encoded file, revert to the a
binary-encoded version.
Printing CMYK images
Choose an encoding method. (With the AdobePS printer driver for Mac OS, these
options appear in the Adobe Photoshop pane of the Print dialog box.) For fastest print
times, select JPEG encoding.
N OTE : Check the printed output carefully for unwanted artifacts that can appear as a
result of JPEG compression. If you see unexpected results in the printed output when
printing with JPEG encoding, print the job again using binary encoding.
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Photoshop 4.x
RGB Source and Rendering Style settings have no effect on CMYK images. The Spot
Color Matching setting is also irrelevant because Photoshop converts PANTONE
colors to CMYK values when you work in CMYK mode.
• If the image was separated for an offset press standard, apply the corresponding
CMYK Simulation setting. For example, if the image is separated for SWOP, choose
SWOP as the CMYK Simulation setting. If you apply a CMYK Simulation setting
(other than None) to the job, choose Color Proofing (Photo) or Color Proofing
(Solid) for the Rendering Style setting (see page 1-4).
• If the image was separated using a custom separation (not a press standard), choose
None as the CMYK Simulation setting, or choose the corresponding custom
simulation profile on the Fiery 3850C if one has been downloaded with the Profile
Manager. For more information on the Profile Manager and ColorWise Pro Tools,
see Chapter 4.
8
8-1
Chapter 8:
Page Layout
Applications
Working with page layout applications
This chapter provides instructions for printing color documents from Adobe
PageMaker 7.x and 6.5, QuarkXPress 4.02, and QuarkXPress 3.32.
Before printing from these applications, make sure the appropriate printer driver
and the Fiery 3850C PPD are installed on your computer, as described in Getting
Started.
Working with page layout applications
The following sections apply to all page layout applications.
Defining colors
Page layout applications generally use the CMYK color model. Some allow you to
define colors with other color models and may be able to send that data to the
Fiery 3850C in those other color models. However, CRDs (which affect only RGB
data) usually do not affect colors defined in page layout applications. For predictable
results with CMYK colors, use the CMYK Color Reference when defining colors in
page layout applications. See “Choosing colors in PostScript applications” on page 5-5.
N OTE : If the application allows you to define colors in RGB, you should determine
whether it converts the RGB data to CMYK before sending it to the Fiery 3850C. If it
does, this will determine which Fiery 3850C print options affect your job. For
example, if the application converts RGB black (defined in the document as R0%,
G0%, B0%) to four-color CMYK black when it sends the job to the Fiery 3850C, the
Pure Black Text/Graphics option will have no effect when you print the job.
You can also choose named colors from the PANTONE color library. See “PANTONE
Coated Color Reference” on page 5-6.
8
8-2
Page Layout Applications
Importing images
EPS and TIFF are the recommended formats for images imported into page layout
documents. Support for importing other file formats may be provided by individual
applications.
All RGB images placed in a document are affected by the RGB Source and
Rendering Style settings. The Fiery 3850C color management system applies the
specified RGB Source setting to all RGB data and then uses the specified Rendering
Style (CRD) to perform a color conversion. An exception to this occurs if you assign
ICC profiles to RGB images using the application’s color management tools (see “Tips
for advanced users” below). In this case, the application performs the color conversion
of the image and sends CMYK data to the Fiery 3850C.
N OTE : To take advantage of RGB Source and Rendering Style settings for images
imported into QuarkXPress 4.02, either save images in the EPS format, or use the
Quark PrintRGB XTension, which outputs RGB TIFF image files without converting
them to CMYK.
Tips for advanced users
If you place multiple RGB images, some non-photographic and some photographic, a
single CRD may not be suitable for all the images. In this case, you may want the
photographic images to bypass the CRD altogether. To accomplish this, separate the
image to CMYK data with a pixel-editing application, such as Photoshop, and perform
color correction. Save the file as EPS or TIFF and import it into the document.
If your application supports this feature, you can save the RGB image in TIFF format
and assign it an ICC profile and rendering intent when you import it into the
document.
8
8-3
Adobe PageMaker 7.x and 6.5 for Mac OS and Windows
CMYK simulation
You can specify a CMYK Simulation profile for the job using the CMYK Simulation
Profile print option (see page 1-6). The CMYK Simulation setting affects all CMYK
color data sent by the page layout application.
• If the document contains CMYK images that were separated for an offset press
standard, apply the corresponding CMYK Simulation setting. For example, for
images separated for SWOP, choose SWOP as the CMYK Simulation setting.
• If the document contains CMYK images that were separated according to the color
characteristics of a custom ICC profile (not a press standard profile), choose the
corresponding profile as the CMYK Simulation Profile print option on the
Fiery 3850C.
N OTE : To achieve the workflow described above, the profile used for the separation
of CMYK images in the document should also reside on the Fiery 3850C. For more
information on downloading CMYK Simulation profiles to the Fiery 3850C with
ColorWise Pro Tools, see Chapter 4.
Adobe PageMaker 7.x and 6.5 for Mac OS and Windows
The Mac OS and Windows versions of PageMaker 7.x and 6.5 are essentially the same.
The illustrations in this section show only the Windows version, except where
differences exist between the two versions.
PageMaker color settings
We recommend you use ColorWise color management rather than the CMS options
built into Adobe PageMaker.
N OTE : Do not use both systems for the same print job.
TO
DISABLE
P AGE M AKER
COLOR MANAGEMENT
1.
Choose Preferences > General from the File menu.
2.
Click CMS Setup.
3.
Choose Off from the Color Management menu.
4.
Click OK, and then click OK again to close the dialog boxes.
8
8-4
TO
Page Layout Applications
DISABLE COLOR MANAGEMENT FOR A BITMAPPED IMAGE
1.
Select the bitmapped image in the document.
2.
Choose Image > CMS Source from the Element menu.
3.
Choose None from the This Item Uses menu and click OK.
Windows version requirement
For the Windows version of PageMaker 6.5, make sure a copy of the Fiery 3850C PPD
file is in the following folders:
• PM65\RSRC\USENGLSH\PPD4
• Windows\System
Importing images
All RGB images placed in a document are affected by your RGB Source and Rendering
Style settings. For best results with placed images, use the instructions in “Importing
images” on page 8-2 and “CMYK simulation” on page 8-3.
Selecting options when printing
All print settings are specified from the Print dialog boxes in PageMaker 7.x or 6.5.
The printer driver interface described in Chapter 1 is not used.
8
8-5
TO
Adobe PageMaker 7.x and 6.5 for Mac OS and Windows
SET PRINT OPTIONS WHEN PRINTING FROM
1.
P AGE M AKER
Choose the Fiery 3850C PPD from the PPD menu in the Print Document dialog box.
Choose the Fiery 3850C PPD
Click Options
2.
Click Options.
3.
Choose Normal from the “Send image data” menu in the Print Options dialog box and
click Features.
To ensure that TIFF images print at their full resolution, do not choose the Optimized
Subsampling default from the “Send image data” menu.
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8-6
4.
Page Layout Applications
If a document contains RGB placed images or colors defined in RGB that will not be
separated to process colors, choose RGB Source and Rendering Style settings in the
Print Features dialog box.
If the document contains PANTONE colors, choose the appropriate Spot Color
Matching setting.
5.
Click Print from any of the PageMaker dialog boxes to send the job to the Fiery 3850C.
N OTE : The printer driver dialog boxes described in Chapter 1 do not appear.
Optional Color Management from PageMaker
If you have additional color management requirements not offered by ColorWise,
such as managing color on non-Fiery 3850C devices, consider using the PageMaker
color management features. For more information, see your PageMaker
documentation.
QuarkXPress 4.x for Mac OS and Windows
If you have additional color management requirements not offered by ColorWise,
consider using Quark CMS XTension for QuarkXPress 4.02. These features allow
advanced users to control RGB to CMYK color conversions. If you plan to use these
features, make sure the Quark CMS XTension is installed before starting QuarkXPress.
If it is not, use the Quark XTensions Manager to install it. Refer to your QuarkXPress
documentation for instructions.
8
8-7
QuarkXPress 4.x for Mac OS and Windows
N OTE : Quark CMS converts RGB TIFF, JPEG, and PICT images to CMYK before
sending color data to the Fiery 3850C. RGB Source and Rendering Style settings have
no effect on this data unless you use Quark PrintRGB XTension, which outputs RGB
TIFF image files without converting them to CMYK.
Importing images
With the exception of RGB images that are saved in EPS format or use Quark
PrintRGB XTension, QuarkXPress 4.02 converts all RGB data into CMYK, even
when Quark CMS XTension is disabled.
Only RGB images saved in EPS format are affected by RGB Source and Rendering
Style settings. For best results with placed images, use the instructions in “Importing
images” on page 8-2 and “CMYK simulation” on page 8-3.
Selecting options when printing
You can select the print options that suit your print needs. Choose the Fiery 3850C
PPD from the Printer Description menu in the Print dialog box.
Mac OS
Choose the Fiery 3850C PPD
Choose an output paper size
Click to specify printer settings
8
8-8
Page Layout Applications
Windows
Choose the Fiery 3850C
Click to specify printer settings
Choose the Fiery 3850C PPD
If the document contains PANTONE colors, choose the appropriate Spot Color
Matching setting. For instructions on specifying print options, see Chapter 1.
Optional Color Management from QuarkXPress
If you have additional color management requirements not offered by ColorWise, such
as managing color on non-Fiery 3850C devices, consider using the QuarkXPress color
management features. For more information, see your QuarkXPress documentation.
QuarkXPress 3.32 for Mac OS and Windows
Before starting QuarkXPress 3.32, make sure the EfiColor XTension is not loaded in
the XTensions folder. EFICOLOR profiles are not currently provided with
Fiery 3850C products. Without the correct EFICOLOR profile, the EfiColor
XTension cannot perform color conversions on placed images.
Windows version requirement
For the Windows version of QuarkXPress, make sure a copy of the Fiery 3850C PPD
file is in the \XPRESS\PDF folder.
8
8-9
QuarkXPress 3.32 for Mac OS and Windows
Importing images
All RGB images placed in a document are affected by your RGB Source and Rendering
Style settings. For best results with placed images, use the instructions in “Importing
images” on page 8-2 and “CMYK simulation” on page 8-3.
Selecting options when printing
Select the Fiery 3850C PPD from the Printer Type menu in the Page Setup (Mac OS)
or Printer Setup (Windows) dialog box.
Mac OS
Choose the Fiery 3850C PPD
Choose an output paper size
Choose Binary
8
8-10
Page Layout Applications
Windows
Choose an output
paper size
Choose the Fiery 3850C PPD
Choose Binary
If a document contains RGB-placed images or RGB colors that QuarkXPress will print
without converting to CMYK, choose RGB Source and Rendering Style settings. If the
document contains PANTONE colors, choose the appropriate Spot Color Matching
setting. For instructions on specifying print options, see Chapter 1.
9
9-1
Chapter 9:
Illustration
Applications
Working with illustration applications
This chapter provides instructions for using Illustrator for Windows and Mac OS,
FreeHand for Windows and Mac OS, and CorelDRAW for Windows and Mac OS.
Before printing from these applications, make sure the appropriate PostScript
printer driver and the Fiery 3850C PPD are installed on your computer, as described
in Getting Started.
Working with illustration applications
You can print directly from an illustration application or use it to create and save files
that will be imported into a page layout document. To print from an illustration
application, use the printer driver and the print settings recommended in Chapter 1.
N OTE : These application notes provide instructions for printing composites only.
For instructions on printing color separations, refer to the documentation for
your application.
As a general rule, use the EPS file format when saving files with an illustration
application.
Defining colors
All illustration applications use the CMYK color model. While some also allow you
to define colors using other color models, they all send CMYK data to the
Fiery 3850C. Consequently, the RGB Source and Rendering Style settings in the PPD
do not affect all colors printed from illustration applications. For predictable results
with CMYK colors, use the CMYK Color Reference pages when defining colors (see
“Choosing colors in PostScript applications” on page 5-5).
N OTE : If you define colors in RGB and print directly from the application, the
application converts the RGB data to CMYK before sending it to the Fiery 3850C.
This conversion by the application will determine which Fiery 3850C print options
affect your job. For example, if the application converts RGB black (defined in your
document as R0%, G0%, B0%) to four-color CMYK black when it sends the job to
the Fiery 3850C, the Pure Black Text/Graphics option in the PPD will have no effect
when you print the job.
You can also choose named colors from the PANTONE color library. See page 5-6.
9
9-2
Illustration Applications
Importing images
In general, all images placed into illustration applications should be in EPS file format.
All RGB images placed in a document are affected by the RGB Source and
Rendering Style settings in the PPD. The Fiery 3850C color management system
applies the specified RGB Source setting to all RGB data and then uses the specified
Rendering Style (CRD) to perform a color conversion to CMYK. An exception to this
occurs if you assign ICC profiles to RGB images using the application’s color
management tools (see “Tips for advanced users” below). In this case, the application
performs the color conversion of the image and sends CMYK data to the Fiery 3850C.
Tips for advanced users
If you place multiple RGB images, some non-photographic and some photographic,
a single CRD may not be suitable for all the images. In this case, you may want the
photographic images to bypass the CRD altogether. To accomplish this, separate the
image to CMYK data with a pixel-editing application, such as Photoshop, and perform
color correction. Save the image as an EPS or TIFF file and import it into the
document. Or save the RGB image in TIFF format and assign it an ICC profile and
rendering intent when you import it into the document (see the individual application
notes in this chapter).
CMYK simulation
You can specify a press simulation target and a press simulation method for the job
with print options (see Chapter 1). The CMYK Simulation setting affects all CMYK
color data sent by the illustration application.
• If the document contains CMYK images that were separated for an offset press
standard, apply the corresponding CMYK Simulation setting. For example, for
images separated for SWOP, choose SWOP-Coated as the CMYK Simulation
setting.
• If the document contains CMYK images that were separated according to the
color characteristics of a custom ICC profile (not a press standard profile), select
the corresponding profile from the CMYK Simulation Profile print option on
the Fiery 3850C.
9
9-3
Adobe Illustrator for Windows and Mac OS
N OTE : The workflow described above requires that the profile used for the separation
of CMYK images in the document also resides on the Fiery 3850C. For more
information on downloading CMYK Simulation profiles to the Fiery 3850C with
ColorWise Pro Tools, see Chapter 4.
Adobe Illustrator for Windows and Mac OS
The following sections provide guidelines for working with versions 9.x and 8.x
of Adobe Illustrator.
Illustrator 9.x color settings
Illustrator 9.x uses a sophisticated color management system that can handle both
RGB and CMYK colors for a variety of color-managed workflows. By customizing
color settings, you can specify the amount of color management you want to use while
working in Illustrator 9.x. These color settings include:
Working spaces—Default color spaces to use when working with RGB and CMYK
documents. ICC color profiles describe the gamut and color characteristics of these
working spaces.
Color management policies—Instructions that tell Illustrator 9.x what to do when it
encounters color data from a color space other than the specified working space.
Specifying print options
The following procedure outlines the recommended color settings for Illustrator 9.x
in a Fiery 3850C workflow.
9
9-4
TO
Illustration Applications
SPECIFY COLOR SETTINGS
1.
Choose Color Settings from the Edit menu.
2.
Select Advanced Mode.
In Advanced Mode, a more extensive list of options is displayed.
3.
Choose the desired working space profile for each mode in the Working Spaces area.
Use the following guidelines for specifying working spaces:
• For RGB, choose EFIRGB. This profile represents the default RGB color space used
by the Fiery 3850C. New RGB documents you create in Illustrator will use this
working space.
• For CMYK, choose a profile that describes your target press (such as SWOP) if you
are a prepress user. If you are an office user printing final output, choose an output
profile that describes the printer connected to the Fiery 3850C. To use a devicespecific output profile, upload the profile from the Fiery 3850C to your computer.
New CMYK documents you create in Illustrator will use the specified working
space.
9
9-5
4.
Adobe Illustrator for Windows and Mac OS
Choose policies for handling documents without embedded profiles or with embedded
profiles that differ from the working space in the Color Management Policies area.
Choose Off from the RGB and CMYK menus. This option discards the original
profile embedded in a document if it differs from the specified working space.
In the Profile Mismatches area, select the Ask When Opening option. This option
displays an alert message that allows you to override the specified policy behavior (Off )
when opening documents or importing color data.
5.
Choose settings for converting between color spaces in the Conversion Options area.
Choose Adobe (ACE) from the Engine menu to use the built-in color management
engine for Photoshop.
Choose a rendering intent from the Intent menu that will optimize the color quality of
the conversion. For guidelines on choosing the rendering intent, see your Photoshop
6.x documentation.
Select the Use Black Point Compensation option to optimize the quality of
color conversions.
6.
Click Save to save the current group of color settings.
The Save dialog box appears.
7.
Name the settings file, accept the default saved location, and click Save.
You can switch to your saved settings at any time by choosing the group name from the
Settings menu at the top of the Color Settings dialog box.
9
9-6
Illustration Applications
Illustrator 8.x color settings
If you are using ColorWise color management, disable the Illustrator 8.x color
management system by removing the Color Conversion and Color Conversion
Utilities files from the Adobe Illustrator >Plug-ins>Extensions folder.
Consider the following points when working in Illustrator 8.x:
• Any colors defined in Illustrator are sent to the printer in CMYK—even those
defined using other color models. For best results, use the color definition
methods described on page 5-5.
• All RGB images placed in a document are affected by the RGB Source and
Rendering Style settings you select in the PPD. For best results with placed
images, use the instructions in “Importing images” on page 9-2 and “CMYK
simulation” on page 9-2.
If you have additional color management requirements not offered by ColorWise,
such as managing color on devices not controlled by the Fiery 3850C, you may want
to consider using the Illustrator color management features. For more information,
see your Illustrator documentation.
Specifying print options
The following procedure explains how to set print options when printing a document
from Illustrator 9.x or 8.x to the Fiery 3850C.
TO
SET PRINT OPTIONS IN
1.
I LLUSTRATOR
Choose Print from the File menu in Illustrator.
The Print dialog box appears.
2.
For the Windows version of Illustrator, specify appropriate print options.
• Choose the Fiery 3850C printer from the Name menu.
• Choose Composite from the Output menu.
9
9-7
Adobe Illustrator for Windows and Mac OS
• Choose Level 2 or 3 from the PostScript menu.
Windows
Select the printer name
Choose Composite
Choose PostScript Level 2 or 3
Click Properties
to set print options
9
9-8
3.
Illustration Applications
For the Mac OS version of Illustrator, specify appropriate print options.
• Choose the Fiery 3850C printer from the Printer menu.
• Choose Adobe Illustrator from the option menu below the Printer menu.
• Choose Composite from the Output menu.
• Choose Level 3 from the PostScript menu.
Mac OS
Choose Composite
Choose PostScript
Level 3
4.
If necessary, click Properties (Windows) or choose Printer Specific Options from the
option menu (Mac OS) and choose RGB Source and Rendering Style settings for the
Fiery 3850C.
You only need to specify these settings if you have a CMYK document containing
placed RGB images, or an RGB document in Illustrator 9.x. In all other cases, colors
remain unaffected by the settings.
5.
If the document contains PANTONE-named colors, choose the appropriate Spot Color
Matching setting.
Saving files for importing into other documents
When saving files in Illustrator 9.x or 8.x for importing into other types of documents,
use the EPS file format. Illustrator can save color information in both RGB and
CMYK. The ColorWise RGB Source and Rendering Style settings affect color output
of RGB artwork saved in Illustrator EPS and imported into other kinds of documents
(even when both RGB and CMYK artwork exists in the same file). In the case of
9
9-9
FreeHand 9.x and 8.x for Windows and Mac OS
Illustrator files imported into Photoshop, however, vector data from the Illustrator file
is rasterized into bitmaps in Photoshop, and the final color space of the bitmap data is
determined by the color mode you set in Photoshop.
FreeHand 9.x and 8.x for Windows and Mac OS
The information in this section applies to both the Windows and Mac OS versions
of FreeHand 9.x and 8.x. Only Mac OS dialog boxes are shown, but the information
and instructions are identical for the Windows version.
FreeHand color settings
When using ColorWise color management, turn off FreeHand color
management features.
TO
DISABLE COLOR MANAGEMENT IN
F REE H AND 9. X
OR
8. X
1.
Choose Preferences from the File menu.
2.
Click the Colors category in the Preferences dialog box.
3.
Choose None for the type of color management.
Click Colors to access the color
management settings
9
9-10
Illustration Applications
Defining colors
Any colors defined in FreeHand are sent to the printer in CMYK—even those defined
using other color models. For best results, use the color definition methods described
on page 5-5.
You can control the conversion of RGB colors defined in FreeHand by specifying
settings in the Preferences dialog box under the Colors category, or choosing Color
Management from the FreeHand menu on the Print dialog box.
Importing images
A number of file types can be imported into FreeHand, but once imported, all are
treated as EPS images, TIFF images, or editable paths. For details, see your FreeHand
documentation.
When you import an EPS image into a document, FreeHand inserts a link to the
image rather than embedding the original file, resulting in a smaller file size. If the
image is a CMYK EPS file, the colors print just as they would from the originating
application.
N OTE : Before placing a CMYK EPS file, be sure the file was saved with Desktop Color
Separation (DCS) set to Off. If the file was saved with DCS activated, FreeHand prints
composites of the image at the low resolution used for screen viewing.
All RGB images placed in a document are affected by your RGB Source and Rendering
Style settings in the PPD. For best results with placed images, follow the instructions
in “Importing images” on page 9-2 and “CMYK simulation” on page 9-2.
9
9-11
TO
FreeHand 9.x and 8.x for Windows and Mac OS
SET OPTIONS WHEN PRINTING FROM
1.
F REE H AND
Select the Use PPD option in the Print dialog box.
Click to access
FreeHand Print Setup
Choose Normal
Click to select a PPD
(PPD name appears at right)
2.
Choose Normal from the Print setting menu.
• If the Use PPD option is selected, a plus sign (+) appears in front of the
word “Normal.”
• If the PPD name for your Fiery 3850C is not displayed, click the button
labeled “…” and choose the appropriate PPD from the menu that appears.
3.
To use ColorWise color management features, clear the “Convert RGB to process”
option in the File > Output Options dialog box.
If this option is selected, FreeHand color management settings are used to convert
RGB colors and RGB TIFF, PICT, and JPEG images to CMYK.
Clear option to use ColorWise
color management
9
9-12
4.
Illustration Applications
If a document contains placed RGB images, choose RGB Source and Rendering Style
settings in the PPD.
With the exception of placed RGB images, these settings have no effect on colors
printed with FreeHand. If the document contains PANTONE-named colors, choose
the appropriate Spot Color Matching setting in the PPD.
For information about other FreeHand print options, see your FreeHand
documentation.
Saving files for importing into other documents
When saving files in FreeHand 8.x for importing into other types of documents, use
the EPS file format. FreeHand saves all color information in CMYK. The RGB Source
and Rendering Style print options have no effect on the color output of RGB artwork
saved in FreeHand 8.x and imported into other types of documents. In the case of
FreeHand files imported into Photoshop, however, vector data from the FreeHand file
is rasterized into bitmaps in Photoshop, and the final color space of the bitmap data is
determined by the color mode you set in Photoshop.
Optional color management in FreeHand
If you have additional color management requirements not offered by ColorWise, such
as managing color on devices not controlled by the Fiery 3850C, you may want to
consider using the FreeHand color management features. For more information, see
your FreeHand documentation.
CorelDRAW for Windows and Mac OS
Defining colors
Any colors defined in CorelDRAW 9.x for Windows or CorelDRAW 8.x for Mac OS
are sent to the printer in CMYK—even those defined using other color models. For
the best results, use the color definition methods described in “Choosing colors in
PostScript applications” on page 5-5.
You can control the conversion of RGB colors defined in CorelDRAW by specifying
settings in the Color Management dialog boxes. On Windows machines, the Color
Management dialog boxes are located in Tools>Color Management. On Mac OS
computers, the Color Management functions are located in Edit:Preferences:Global.
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9-13
CorelDRAW for Windows and Mac OS
N OTE : If you do not want to use color management in CorelDraw, do not select
options under Color Management and Color Management General, and select None
from the Composite Printer pop-up menu under Color Management/Profiles.
Importing images
All RGB images placed in a document are affected by your RGB Source and Rendering
Style settings in the PPD. For best results with placed images, use the instructions in
“Importing images” on page 9-2 and “CMYK simulation” on page 9-2.
Selecting options when printing
On Windows computers, in the Print dialog box under the General tab, make sure the
correct printer and PPD are selected and select the Use PPD check box. Click
Properties to specify Fiery 3850C print options.
Print device name appears here
Click Properties to access
Fiery 3850C print options
Printer driver/PPD name appears
here
On Mac OS computers, click the Printer button in the General Print dialog box to
select the printer and print options.
To use Fiery 3850C color management, make sure the “Use color profile” option in
the Misc tab of the Print dialog box is not selected. If this option is selected,
CorelDRAW color management settings are used to convert RGB colors and images to
CMYK.
9
9-14
Illustration Applications
Do not select to use
Fiery 3850C Color Management.
If a document contains placed RGB images, choose RGB Source and Rendering Style
settings for your printer. With the exception of placed RGB images, these settings have
no effect on colors printed with CorelDRAW. If the document contains PANTONE
named colors, choose the appropriate Spot Color Matching setting.
Saving files for importing into other documents
When saving files in CorelDRAW for importing into other types of documents,
use the EPS file format. CorelDRAW saves all color information in CMYK, so RGB
Source and Rendering Style print options have no effect on color output of artwork
saved with CorelDRAW and imported into other kinds of documents. In the case
of CorelDRAW files imported into Photoshop, however, vector data from the
CorelDRAW file is rasterized into bitmaps in Photoshop, and the final color space
of the bitmap data is determined by the color mode you set in Photoshop.
Optional Color Management in CorelDRAW
If you have additional color management requirements not offered by ColorWise, such
as managing color on non-Fiery 3850C devices, consider using the CorelDRAW color
management features. For more information, see your documentation.
A
A-1
Appendix A:
Desktop
Color Primer
Desktop Color Primer
This appendix covers concepts basic to printing in color, including:
• Properties of color
• Printing techniques
• Using color effectively
• Raster images and vector images
• Optimizing files for processing and printing
If you are already familiar with color theory and digital color printing, refer to the last
section (“Optimizing files for processing and printing” on page A-10) for tips on
optimizing files for printing.
The properties of color
This section introduces concepts that are basic to color theory. You will encounter
some of these concepts (such as hue, saturation, and brightness) when you work with
color in applications; others provide useful background information. Color is a complex
topic, so consider this a starting point for experimentation and further research.
The physics of color
The human eye can see electromagnetic radiation at wavelengths between 400
nanometers (purplish blue) and 700 nanometers (red). This range is called the visible
spectrum of light. We see pure spectral light as intensely saturated or pure colors.
Sunlight at midday, which we perceive as white or neutral light, is composed of light
from across the visible spectrum in more or less equal proportions. Shining sunlight
through a prism separates it into its spectral components, resulting in the familiar
rainbow of colors (color example 1).
A
A-2
Desktop Color Primer
Like the sun, most light sources we encounter in our daily environment emit a mixture
of light wavelengths, although the particular distribution of wavelengths can vary
considerably. Light from a tungsten light bulb, for example, contains much less blue
light than sunlight. Tungsten light appears white to the human eye, which, up to a
point, can adjust to the different light sources. However, color objects appear different
under tungsten light than they do in sunlight because of the different spectral makeup
of the two light sources.
The mixture of light wavelengths emitted by a light source is reflected selectively by
different objects. Different mixtures of reflected light appear as different colors. Some
of these mixtures appear as relatively saturated colors, but most appear to us as grays or
impure hues of a color.
CIE color model
In the 1930s, the Commission Internationale de l’Eclairage (CIE) defined a
standard color space, a way of defining colors in mathematical terms, to help in
the communication of color information. This color space is based on research on
the nature of color perception. The CIE chromaticity diagram (color example 2) is a
two-dimensional model of color vision. The arc around the top of the horseshoe
encompasses the pure, or spectral, colors from blue-violet to red. Although the CIE
chromaticity diagram is not perceptually uniform—some areas of the diagram seem
to compress color differences relative to others—it is a good tool for illustrating some
interesting aspects of color vision.
By mixing any two spectral colors in different proportions, we can create all the colors
found on the straight line drawn between them in the diagram. It is possible to create
the same gray by mixing blue-green and red light or by mixing yellow-green and blueviolet light. This is possible because of a phenomenon peculiar to color vision called
metamerism. The eye does not distinguish individual wavelengths of light. Therefore,
different combinations of spectral light can produce the same perceived color.
Purple colors, which do not exist in the spectrum of pure light, are found at the
bottom of the diagram. Purples are mixtures of red and blue light—the opposite ends
of the spectrum.
A
A-3
Desktop Color Primer
Hue, saturation, and brightness
A color can be described in terms of three varying characteristics, called the HSB color
model:
• Hue—tint (the qualitative aspect of a color—red, green, or orange)
• Saturation—the purity of the color
• Brightness—relative position between white and black
While the CIE chromaticity diagram (color example 2) conveys hue and saturation, a
three-dimensional color model is required to add the brightness component (color
example 3).
Many computer applications include dialog boxes in which you choose colors by
manipulating hue, saturation, and brightness. For example, some applications use a
color picker (color example 4) which can be reconfigured according to your preference.
Additive and subtractive color systems
Color devices used in desktop publishing and printing simulate the range of visible
colors using a set of primary colors that are combined to create other colors. There are
two methods for creating a range of colors from a set of primary colors. Computer
monitors and scanners are based on the additive color model. Printing technologies,
including the Fiery 3850C and offset presses, are based on the subtractive color
model.
Additive (RGB) color
Color devices that use the additive color model make a range of colors by combining
varying amounts of red, green, and blue light. These colors are called the additive
primaries (color example 5). White is created by adding the maximum amount of red,
green, and blue light available. Black occurs wherever all three colors are absent. Grays
are created by adding equal amounts of all three colors together. Combining varying
amounts of any two of the additive primaries creates a third, saturated hue.
A familiar device based on this color model is the computer monitor (color example 6).
Monitors have red, green, and blue phosphors that emit varying amounts of light to
display a given color. Scanners create digital representations of colors by measuring
their red, green, and blue components through colored filters.
A
A-4
Desktop Color Primer
Subtractive (CMY and CMYK) color
The subtractive color model is the basis for color printing and for color photographic
prints and transparencies. While the additive color model simulates the visible
spectrum of color by adding light of three primary hues, the subtractive color model
starts with a “white” or neutral light source containing light of many wavelengths.
Inks, toners, or other colorants are used to selectively absorb (subtract) certain
wavelengths of light that otherwise would be reflected or transmitted by the media
in use.
The subtractive primaries are cyan, magenta, and yellow; they absorb red, green, and
blue light, respectively (color example 7). Combining any two subtractive primaries
creates a new color that is relatively pure or saturated. For example, you can make red
by combining magenta and yellow, which absorb green and blue light, respectively.
White occurs when no colorant is applied. Combining all three subtractive primaries
in theory yields black, but due to deficiencies of cyan, magenta, and yellow colorants,
combining these three primaries actually yields a muddy brown. Black colorant is
added to compensate for the deficiencies of cyan, magenta, and yellow colorants.
Consequently, color printing uses four process colors: Cyan, Magenta, Yellow, and
blacK (CMYK). The use of black toner helps in producing rich, solid blacks and allows
for improved rendering of black text.
The CMYK colorants used in offset printing and by your printer toner are to some
degree transparent. When one layer of colorant is applied on top of another, you see
the effect of both. To create a range of intermediary colors, a method is required for
varying the amount of each colorant that is applied. A technique called halftoning is
used in offset printing, while color print devices typically use a proprietary system for
applying ink or toner colors that is similar to halftoning.
A
A-5
Desktop Color Primer
Printing techniques
Until recently, most color printing was done on printing presses using one of several
printing techniques—offset lithography, flexography, and gravure, to name a few.
All traditional printing techniques require lengthy preparation before a print run can
take place. Short-run color printing, including Fiery 3850C printing, eliminates most
of this preparation. By streamlining the process of color printing, the Fiery 3850C
makes short print runs economically feasible.
In contemporary offset lithographic printing, digital files from desktop computers are
output to an imagesetter, which creates film separations. The film is used to make a
prepress proof, which is an accurate predictor of the final print job and allows you to
make corrections before going to press. Once the proof is approved, the printer makes
plates from the film and runs the print job on the press.
Desktop
computer
Desktop
computer
Imagesetter
Film
Print device
Proof
Press
Print run
Color prints
With a Fiery 3850C, you simply print the file. The Fiery 3850C processes the
PostScript information in the file and sends four bitmaps (one each for cyan,
magenta, yellow, and black) to the print engine. The ease of Fiery 3850C printing
makes possible experimentation that would be too costly on press, allowing unlimited
fine-tuning of color and design elements.
A
A-6
Desktop Color Primer
Halftone and continuous tone devices
Halftoning is used in offset printing to print each process color at a different intensity,
allowing millions of different colors to be reproduced using only the four process
colors. Depending on the required intensity of a given color, toner is placed on paper
in dots of different size. The grid of dots used for each toner color is called a screen.
Halftone screens are aligned to unique angles designed to eliminate interference
patterns called moiré that can arise with halftoning.
Some color print devices are commonly referred to as continuous tone (or “contone”)
devices. They do not use traditional halftone screen patterns and angles. Contone
devices are capable of varying the intensity of individual dots.
Even if your color printing is done exclusively on the Fiery 3850C, you will encounter
concepts from offset printing if you use high-end graphics applications. For example,
color controls in illustration applications, such as Illustrator, are geared toward
specifying color for offset printing using process and spot colors. Many applications
allow you to specify the screening used for each printing plate.
Using color effectively
The ability to print in color can greatly increase the effectiveness of your message,
whether you are printing a presentation or a newsletter, or proofing an ad concept that
will later be printed on press. Some potential benefits of using color include:
• Conveying information rapidly by using color cues
• Making use of the emotive aspects of different colors
• Increasing impact and message retention
Color can also be a source of distraction and discord if it is used poorly. This section
outlines some tips and concepts that will prove useful as you approach designing
color materials.
A
A-7
Desktop Color Primer
A few rules of thumb
Try some of the following strategies for creating successful color materials:
• Rather than applying colors indiscriminately, use color to aid comprehension.
In presentations, graphs, and charts, use color to highlight patterns and emphasize
differences.
• In general, fewer colors work better than many colors.
• Use red as an accent color. Red is particularly effective when used in otherwise
monochromatic materials.
• Consider the tastes of your target audience when choosing colors.
• Keep a file of printed color pieces that appeal to you or strike you as effective.
Refer to it for ideas when designing your own documents.
Color wheel
A color wheel (color example 8) is a helpful tool for understanding the interrelation of
colors. The colors on one side of the color wheel, from magenta to yellow, appear to
most people to be warm colors, while those on the other side, from green to blue,
appear to be cool. The distance between two colors on the color wheel can help predict
how they will appear when seen side by side.
Colors opposite one another on the wheel are called complements (color example 9a),
and create a striking contrast side by side. This can be the basis for a bold graphical
design, but it is an effect you should use with discretion since it can be visually
fatiguing. Other bold combinations to consider are split complements (a color and the
two colors adjacent to its complement; color example 9b) and triads (three colors
evenly spaced on the color wheel; color example 9c). Colors adjacent to one another on
the color wheel result in subtle harmonies.
The color wheel simplifies color relationships for the purpose of clarity, showing only
saturated or pure colors. Adding the myriad variations of each hue to the palette (more
or less saturated, darker or lighter) creates a wealth of possibilities. Taking a pair of
complements from the color wheel and varying the saturation and brightness of one or
both colors produces a very different result from the pure complements. Combining a
light tint of a warm color with a darker shade of its cooler complement often gives
pleasing results. Combining a darker shade of a warm color with a light tint of its
cooler complement produces an unusual effect you may like.
A
A-8
Desktop Color Primer
Once you have mastered the concept of the color wheel, you have a good framework
for experimenting with color combinations. Many books targeted at graphic designers
show groups of preselected color combinations. Some are organized by themes or
moods, and some are based on a custom color system, such as PANTONE. The more
you develop a critical facility for judging color combinations, the more you will be able
to trust your own eye for color. The bibliography at the back of this manual includes
books on design.
Color and text
It is not a coincidence that the overwhelming majority of text you see is printed in
black on white paper. Text in black on white is highly legible and is not fatiguing to
read for extended periods. For many color materials, using black text on a white
background and confining color to graphic elements and headings is a good choice.
Color text can add flair to documents printed on paper when used skillfully. This
technique is widely used in presentations. When using color text, avoid dazzling text
and background combinations created from primary complements, especially red and
cyan or red and blue; they are visually fatiguing and hard to read. Color text is more
legible when distinguished from its background by a difference in lightness—for
example, dark blue text on a light beige background. In addition, using many different
colors in a string of text makes for a confused appearance and is hard to read. However,
using a single highlight color is an effective way to draw the reader’s eye to selected
words. See color example 10 for color text samples.
When using color text, keep in mind that small font sizes typically do not print in
color with the same sharpness as in black. In most applications, black text prints
exclusively in black toner, while color text usually prints with two or more toners.
Any misregistration between the different toners on paper causes color text to lose
definition. You can make test prints to find the smallest point size at which color text
prints clearly. When using high-end graphics applications that allow you to specify
color as percentages of cyan, magenta, yellow, and black, you can create pure cyan or
pure magenta text that prints with the same sharpness as black text. (Pure yellow text is
extremely hard to read on anything but a dark or complementary background.)
A
A-9
Desktop Color Primer
Raster images and vector images
Two broad categories of artwork can be printed from a personal computer to a color
printer: raster and vector images.
A raster image, also referred to as a bitmap, is composed of a grid of pixels, each
assigned a particular color value (color example 11a). The grid, when sufficiently
enlarged, resembles a mosaic made from square tiles. Examples of raster images include
scans and images created in painting or pixel-editing applications, such as Photoshop
and Painter.
The amount of data found in a raster image depends on its resolution and bit depth.
The resolution of a raster describes the compactness of the pixels and is specified in
pixels per inch (ppi). The bit depth is the number of bits of information assigned to
each pixel. Black and white raster images require only one bit of information per pixel.
Grayscale images require 8 bits per pixel. For photographic quality color, 24 bits of
RGB color information are required per pixel, yielding 256 levels of red, green, and
blue. For CMYK images, 32 bits per pixel are required.
When printing raster artwork, the quality of the output depends on the resolution of
the source raster. If the raster resolution is too low, individual pixels become visible in
the printed output as small squares. This effect is sometimes called “pixelation.”
In vector images, picture objects are defined mathematically as lines or curves between
points—hence the term “vector” (color example 11b). Picture elements can have solid,
gradient, or patterned color fills. Vector artwork is created in illustration and drawing
applications, such as Illustrator and CorelDRAW. Page layout applications, such as
QuarkXPress, also allow you to create simple vector artwork with their drawing tools.
PostScript fonts are vector-based as well.
Vector artwork is resolution-independent; it can be scaled to any size and resolution
without danger of pixels becoming visible in printed output.
A
A-10
Desktop Color Primer
Optimizing files for processing and printing
The following sections provide tips on how to create image files that produce the
highest possible print quality while minimizing the processing time and disk space
they require.
Resolution of raster images
While a 72-ppi raster image appears sharp on a monitor, the same image would likely
appear pixelated when printed to the Fiery 3850C. Color print devices are capable of
much greater detail than monitors, and require correspondingly higher resolution
image files. However, high-resolution files can be large, and therefore cumbersome to
transmit over a network, process for printing, store on disk, and edit.
Beyond a certain threshold, a higher image resolution greatly increases file size while
having a minimal effect on output quality. The optimal image resolution depends on
the resolution of the final print device. Aim for the resolution that optimizes both file
size and output quality.
The resolution of a raster image, along with its bit depth and physical dimensions,
determine its file size. The following table shows the file sizes of color raster images at
different dimensions and resolutions.
File size at
Image size
(inches)
100 ppi
150 ppi
200 ppi
400 ppi
600 ppi
RGB/CMYK
RGB/CMYK
RGB/CMYK
RGB/CMYK
RGB/CMYK
3" x 4"
0.4/0.5 MB
0.8/1.0 MB
1.4/1.8 MB
5.5/7.3 MB
12.4/16.5 MB
5" x 7"
1.0/1.3 MB
2.3/3.0 MB
4.0/5.3 MB
16.0/21.4 MB
36.1/48.1 MB
8.5" x 11"
2.7/3.6 MB
6.0/8.0 MB
10.7/14.3 MB
42.8/57.1 MB
96.4/128.5 MB
11" x 17"
5.4/7.1 MB
12.0/16.1 MB
21.4/28.5 MB
85.6/114.1 MB
192.7/256.9 MB
A
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Desktop Color Primer
In this table, the shaded areas indicate that 200 ppi is typically the best trade-off
between image quality and file size. However, higher resolutions (for example, 250 to
300 ppi) may be needed for offset printing, when quality is of the utmost importance,
or for images containing sharp diagonal lines.
To find the best image resolution for your purposes, make test prints of some raster
artwork at different resolutions. Start with a high-resolution image (400 ppi) and save
versions at progressively lower resolutions, down to 100 ppi, using a pixel-editing
application such as Photoshop. Always save a copy of the original high-resolution
version in case you need to revert to it. The high-resolution data cannot be recreated
from a lower resolution version.
Print the files and examine the output. You will likely begin to see a marked
deterioration in output quality at resolutions below 200 ppi, while above 200 ppi the
improvement may be very subtle.
Image quality
100 ppi
200 ppi
300 ppi
400 ppi
500 ppi
600 ppi
Image resolution
Raster images prepared for offset printing may need to be at higher resolutions than
needed for proofing on your Fiery 3850C.
A
A-12
Desktop Color Primer
Scaling
Ideally, each raster image should be saved at the actual size, and it will be placed into
the document at the optimal resolution for the print device. If the image resolution is
correct for the print device, there is no quality advantage to be gained by scaling an
image down to a percentage of its actual size. If you scale a large image down to a
percentage of its actual size, you incur unnecessary file transfer time because the image
data for the entire large image is sent to the printer. If an image is placed multiple times
at markedly different sizes in a document, save a separate version of the image at the
correct size for each placement.
If you need to place an image at greater than 100% in a document, remember that the
output image resolution is affected. For example, if you scale a 200 ppi image to
200%, the image is printed at 100 ppi.
B
B-1
Appendix B:
Color
Management
Color Management
This appendix provides information on controlling and managing color output in
order to achieve predictable color results. It also discusses the basics of color
management.
Controlling printed color
When working with color materials, whether they be presentations, illustrations, or
complicated page designs, you make aesthetic decisions about the colors you use. Once
you have decided on your goal, you then need to realize it in print. Your color printing
system becomes an ally in this creative process to the extent that results are predictable.
• If you designed a poster to print on the Fiery 3850C, you want the printed colors to
match the design specification.
• If you are printing presentations on the Fiery 3850C, you want to preserve the vivid
colors you see on your monitor.
• If you are working with color that will be printed on an offset press, you want the
Fiery 3850C output to match other prepress proofs or PANTONE color swatch
books.
The type of print job and the final print device, Fiery 3850C or offset press, determine
the methodology you use to achieve the best results.
No matter what your goals are, two factors always impact color print output: print
device consistency and the range of colors the device can print, known as its gamut.
These concepts are covered briefly in this chapter. Creating successful color documents
and presentations also requires an understanding of color management software as it is
implemented by the Fiery 3850C and on your desktop computer. Most of this chapter
is devoted to discussing the various elements of color management that contribute to
predictable color results.
B
B-2
Color Management
Maintaining printer consistency
The factors described below affect print device consistency, as well as color fidelity and
overall output quality.
Paper stock and toner
The paper and toner used by your printer can affect printed color. For best results, use
the supplies recommended by the manufacturer of the printer.
Maintenance
Problems, such as streaking and insufficient or excessive amounts of one or more
toners, arise when a printer does not receive periodic maintenance or needs major
repairs. In addition to having it serviced regularly, monitor the condition of your
printer by making standard test prints at regular intervals. You can do this easily by
printing the Fiery 3850C Test Page. Save the prints and show them to the service
technician whenever output densities vary from the norm or other problems appear.
Print device gamut
Different color reproduction techniques have different color capabilities or gamuts.
Color transparency films have comparatively large gamuts, as do color monitors. The
color gamut that can be produced using process inks or CMYK toners on paper is
smaller. This is why some colors that can be displayed on a color monitor, especially
bright saturated colors, cannot be reproduced exactly by your Fiery 3850C printer, nor
can they be reproduced on a press using process colors. Moreover, different print
devices have different gamuts—some colors your printer can produce cannot be
reproduced on an offset press, and vice versa. The following illustration provides a
graphical representation of this concept.
Color transparency film
RGB monitor
Offset press (white)
Other print device
B
B-3
Color Management
You need to account for the gamut of your print device when designing on a color
monitor. When printed, colors that fall outside the print device gamut are “mapped” to
printable colors. This process, referred to as gamut mapping, takes place when color
data is converted or adjusted to meet the gamut requirements of a print device.
The Fiery 3850C is specially designed to perform gamut mapping at high speed with
high quality results. It provides these color management features automatically, using
either built-in default settings or settings you specify for a particular print job. For
added flexibility, the Fiery 3850C color management system can also be used in
combination with color management systems on Windows and Mac OS computers.
Basics of color management
The past several years have seen progress toward standardization in the field of digital
color management systems. Both the Windows and Mac OS operating systems now
support a standard format developed by the International Color Consortium (ICC).
This ICC format is implemented on Windows 98/Me and Windows 2000 computers
in Image Color Matching (ICM) and on Mac OS computers in ColorSync. More and
more software developers are also incorporating color management systems into highend applications. The Fiery 3850C color management system, ColorWise, supports
this industry standard profile format.
A color management system, or CMS, is a “translator” between the color space of the
source image (the monitor, or a scanner, for example) and the color space of the output
device. The CMS uses a device-independent color space, such as CIELAB, as its
intermediate color space. To perform its translation, the CMS needs information about
the color space of the source image and the gamut of the print device. This
information is provided in the form of profiles, often created by the makers of the
monitor or print device. The end product of a CMS conversion is a printed document
or an image file in the gamut of a particular device.
N OTE : If color matching between computer display and printed output is critical, you
should calibrate your monitor as well as your printer. For most users, predictability of
printed color output is adequate and monitor calibration is not necessary. For
information on monitor calibration, see your Photoshop or Illustrator documentation.
B
B-4
Color Management
Color conversion
Before a color document can be printed, the color data in it must be converted to the
gamut of the print device. Whether performed by the Fiery 3850C or by a host-based
CMS, the process of converting color data for a print device is the same: the CMS
interprets RGB image data according to a specified source profile and adjusts both
RGB and CMYK data according to a specified output profile, also called a destination
profile by some color management systems.
Color management system
Source
profile
Output
profile
Device-independent
color space
The source profile defines the RGB color space of the image’s source—characteristics
such as the white point, gamma, and type of phosphors used. The output profile
defines the gamut of the output device. The Fiery 3850C (or the host-based CMS)
uses a device-independent color space to translate between the source color space and
the color space of the output device.
The Fiery 3850C allows you to specify default and override settings for the source
color space information and the output profile information (see page 1-1). When you
use these settings, you do not need to use the features of other color management
systems. Your Fiery 3850C software includes ICC profiles for use with other color
management systems, if you choose to use them, although conflicts may arise when the
Fiery 3850C CMS is used in conjunction with a host CMS.
Color management systems can also be used to adjust color data to the gamut of a
print device other than the one to which you are printing. This process of simulating
another print device is commonly used for proofing jobs that will print on an offset
press. The Fiery 3850C simulation feature is described on page 1-6.
C
C-1
Appendix C:
Importing
Densitometer
Measurements
Importing Densitometer Measurements
This appendix describes Simple ASCII File Format, which can be used to import
density measurements from measurement devices. To use your own measurement data
from an alternate densitometer, record your individual readings in a text file and
structure it as described below.
Simple ASCII Import File Format (SAIFF)
This format describes Status T measurement data and is for import into the
ColorWise Pro Tools Calibrator. There are three possible file formats:
• 1D Status T density for EFI 34 patch page
• 1D Status T density for EFI 21 patch page
• 1D Status T density for other pages (maximum of 256 patches per ink)
The file format is ASCII and has no tabs. A single space or multiple spaces are used
as delimiters. Blank lines are not allowed. Each line in the file represents four patches
(C, M, Y, K) of a specific ink value. Comments may be on any line in the file, and
these lines start with a pound sign (#) followed by a space. A line with a pound sign
followed by any character other than a space has been reserved. Comments must be
on an entire line by themselves.
Each line of data contains five values. The first number is the sequential patch number
(for EFI 34 and EFI 21 pages) or the ink value percentage (for other pages). The
following four values are the density values of C, M, Y, and K of the corresponding
patch. Lines are ordered either by increasing sequential patch numbers or by increasing
the ink percentage.
For Windows computers, the file extension must be .cm1. For Mac OS computers, the
file type must be ‘TEXT’.
Measurement data in EFI 34 and EFI 21 are paper-relative. For other pages, if the first
line corresponds to zero ink value, the Calibrator assumes that the measurement data is
absolute and adjusts it to become paper-relative by subtracting the density values of the
first line from the remaining patches.
C
C-2
Importing Densitometer Measurements
Example of 1D Status T density for EFI 34 patch page
This file format is used to specify the Status T density measurements of the EFI 34
patch page. The value in the first column is the patch number. The first patch must be
1 and the last must be 34.
#!EFI 3
# EFI ColorWise 2.0 Data
type: 1DST34
# Cyan
Magent Yellow Black
1 0.0300 0.0400 0.0200 0.0400
2 0.0600 0.0700 0.0800 0.0700
3 0.1000 0.1000 0.1000 0.1000
(…more data…)
33 1.6700 1.3400 0.8900 1.6700
34 1.7200 1.4300 0.9300 1.7500
Example of 1D Status T density for EFI 21 patch page
This file format is used to specify the Status T density measurements of the EFI 21
patch page. The value in the first column is the patch number. The first patch must be
1 and the last must be 21.
#!EFI 3
# EFI ColorWise 2.0 Data
type: 1DST21
# Cyan
Magent Yellow Black
1 0.0300 0.0400 0.0200 0.0400
2 0.0600 0.0700 0.0800 0.0700
3 0.1000 0.1000 0.1000 0.1000
(…more data…)
20 1.6700 1.3400 0.8900 1.6700
21 1.7200 1.4300 0.9300 1.7500
C
C-3
Importing Densitometer Measurements
Example of 1D Status T density for an arbitrary page
This file format is used to specify the Status T density measurements of a user-defined
patch page. The value in the first column is the ink/toner percentage of the patch. The
first percentage must be 0 and the last percentage must be 100. The percentages must
increase in between.
#!EFI 3
# EFI ColorWise 2.0 Data
type: 1DST
# percnt Cyan Magent Yellow Black
0.0000 0.0300 0.0400 0.0200 0.0400
0.3922 0.0600 0.0700 0.0800 0.0700
1.1765 0.1000 0.1000 0.1000 0.1000
(…more data…)
98.0000 1.6700 1.3400 0.8900 1.6700
100.0000 1.7200 1.4300 0.9300 1.7500
Glossary
additive color model
blasting
A system in which colors are produced
by combining red, green, and blue light
(the additive primaries). An RGB video
monitor is based on an additive color
model.
An undesirable effect that occurs when
excess amounts of toner, possibly
combined with certain types of paper
stock, cause objects in an image to
spread beyond its boundaries as defined
in the file.
additive primaries
Red, green, and blue light that is used in
additive color systems. When added
together in proper amounts, these colors
of light produce white.
BMP
artifact
calibration
A visible defect in an image, usually
caused by limitations in the input or
output process (hardware or software);
a blemish or error.
The process of ensuring that a device
behaves consistently with respect to a set
of specifications.
banding
See color management system.
Visible steps between shades in a color
gradient.
CMYK
bit depth
Amount of information used for each
pixel in a raster image. Black and white
images require only one bit per pixel.
Grayscale images with 256 shades of gray
require 8 bits (or 1 byte) per pixel.
Photographic quality color images can
require 24 bits per pixel (RGB images)
or 32 bits per pixel (CMYK images).
bitmap
An image comprised of small squares
arranged in a grid. Each square in the
grid is a pixel. The number of pixels per
inch defines the resolution of a bitmap.
A graphics file format established by
Microsoft and native to the Windows
operating system.
CMS
A subtractive color model that uses cyan,
magenta, yellow, and black, or process
colors, used in color printing; a color
model used in the printing of colors in
four-color process printing.
color channel
A single-color image that can be edited
separately from the other color channels
comprising a color space—for example,
the red channel of an RGB image.
color gamut
See gamut.
G-2
Glossary
color management system (CMS)
composite printer
System used to match color across
different input, display, and output
devices.
Any output device that can print directly
in color without first creating color
separations. A composite print can be
used as an early proof of an offset print
job.
color rendering dictionary
See CRD (color rendering dictionary).
color separation
The process of separating a color image
into the color components for
printing—cyan, magenta, yellow, and
black. Also used to refer to the four
sheets of film that result from the process
of separating a color image.
color space
A model for representing color in terms
of measurable values, such as the amount
of red, green, and blue in an image. RGB
and CMYK color spaces correspond to
color devices—monitors and printers
respectively. Other color spaces, such as
CIE Lab, are based on mathematical
models and are device-independent.
They are not based on the color response
of a particular device. See gamut.
colorant
An ink, dye, toner, paint, or other
pigment that modifies the color of media
to which it is applied.
ColorWise color management
Fiery 3850C ICC-open color
management solution, which is an easyto-use system that addresses the needs of
both casual and experienced color
management users.
continuous tone (contone)
Describes a photographic image that
contains gradient tones from black to
white (such as a 35mm transparency or a
photograph). Continuous tones cannot
be reproduced in that form for printing,
but must be screened to translate the
image into dots.
continuous tone (contone) image
An image containing fine gradations of
tones, such as a photographic image.
CRD (Color Rendering Dictionary)
A feature of color management systems
and PostScript Level 2 and PostScript 3
color printers that maintains the best
possible translation of color from one
color device to another. A color
rendering dictionary (CRD) is used by
the color management system or the
printer’s PostScript interpreter when
converting data between color spaces.
The Fiery 3850C includes several CRDs,
each of which provides a different color
rendering style.
custom color system
A system of named color swatches that
can be matched on press using process or
spot colors. PANTONE and TruMatch
are examples of custom color systems.
G-3
Glossary
DCS (Desktop Color Separation)
flexography
A data file standard defined by Quark,
Inc., to assist in making color separations
with desktop publishing system; five files
are created, four color files (one each for
C, M, Y, and K) and a composite color
preview file of the color image. It allows
an image-editing application to perform
color separation and pass it through to
final output with its integrity intact.
A printing technology that uses flexible
raised-image plates. Flexography can be
used to print on non-flat materials, such
as cans.
densitometer
An instrument commonly used in the
graphic arts industry to measure density
according to a specified standard.
density
A measurement of the light-absorbing
quality of a photographic or printed
image.
desktop color separation
See DCS.
DIC
A Japanese standard of specifications for
separations, proofs, and color printing.
EPS or EPSF (Encapsulated PostScript)
A PostScript file format designed to be
embedded in another PostScript stream.
Euroscale
A European standard of specifications
for separations, proofs, and color
printing.
four-color printer
A printing device that uses cyan,
magenta, yellow, and black ink or toner.
gamma
A numeric value representing the
relationship (gamma curve) between the
input and output values of a color
device. If gamma equals 1, input values
are mapped exactly to output values.
gamut
A range of colors. A device gamut is the
range of colors that a device, such as a
printer, can produce. An image gamut is
the range of colors in a particular image.
gamut mapping
The conversion of color coordinates
from one device’s gamut to another—
usually accomplished with algorithms or
look-up tables.
GDI (Graphics Device Interface)
Graphics and display technology used by
computers running Windows. GDI
applications rely on GDI (rather than
the PostScript language) to send text and
pictures to printers.
G-4
Glossary
GIF (Graphics Interchange Format)
ICC profile
A standard developed by CompuServe
for bitmap graphics of up to 256 colors
and used for posting photographic
images on the Internet or intranet pages;
rarely used for professional printing.
An industry standard color profile
format developed by the International
Color Consortium (ICC) that describes
the color capabilities, including the
gamut, of a color device based on the
differences between an ideal and the
current device. The ideal is often
provided by the manufacturer as a color
reference file. ICC profiles are
implemented on Mac OS computers in
ColorSync and on Windows 95/98,
Windows NT 4.0, and Windows 2000
computers in Image Color Matching
(ICM). The Fiery 3850C color
management system, ColorWise,
supports ICC profiles.
gradient
A smooth transition between two
different colors or between two shades of
a color.
Graphics Device Interface
See GDI.
Graphics Interchange Format
See GIF.
gravure
A printing technology that uses an
etched cylinder that has been immersed
in ink. The ink that remains in the
etched areas is applied to the paper. The
non-etched surfaces of the cylinder are
non-printing areas.
imagesetter
Raster-based film output device; a highresolution laser output device that writes
bitmapped data onto photosensitive
paper or film.
JPEG
halftoning
A method for representing an original
continuous tone image using a pattern of
dots, lines or other patterns.
HSB
A color model where each color is
represented by its hue, saturation, and
brightness components; supported by
most color applications.
A graphics file format defined by the
Joint Photographic Experts Group
committee of International Standards
Organization (ISO); a standard for
digital compression of still image
graphic data.
metamerism
Phenomenon in which two colors
composed of different combinations of
light wavelengths appear identical under
a specific light source, but may look
different under other light sources. The
colors are called “metamers.”
G-5
Glossary
moiré
photographic rendering
An undesirable pattern in images made
using halftone screens. Moiré can be
caused by the improper line frequency of
the screens, improper screen angles,
improper alignment of halftone screens,
or by the combination of a halftone
screen with patterns in the image itself.
A color rendering style that preserves
tonal relationships in images.
Unprintable colors are mapped to
printable colors in a way that retains
differences in lightness, sacrificing color
accuracy as necessary.
named color
The smallest distinct element of a raster
image. The term is a combination of the
words “picture” and “element.”
A color that is defined according to a
custom color system. For example,
PANTONE 107 C is a named color.
office applications
Software applications commonly used
for business purposes, including
presentation applications, spreadsheets,
and word processing programs.
offset lithography
Printing in which ink is transferred from
printing plates to a rubber blanket and
then from the blanket to paper.
output profile
The output profile describes the color
characteristics of a printing device. It
consists of both a profile for your printer
and a calibration target that defines the
expected density response of the printer.
phosphor
Material used in making computer
monitors; phosphors glow and emit red,
green, and blue light when struck by an
electron beam, thus creating an image.
pixel
PostScript
A device-independent page description
language developed by Adobe, which is
used to print and display pictures and
text. PostScript 3 includes many
enhancements to older versions of PostScript, including improved image quality
and color with Enhanced Image Technology, faster performance with
Advanced Page Processing, and ease of
use and setup with NetWorks System.
PPD (PostScript Printer Description
file)
A file containing information about a
particular PostScript print device’s
capabilities and restrictions. The
information in the PPD is presented via
the printer driver.
prepress proof
A print made from a set of film
separations or other file to simulate the
results of printing. A prepress proof is
the last opportunity to catch problems
before the print job goes to press.
G-6
Glossary
presentation graphics rendering
RGB
A color rendering style that creates
saturated colors but does not match
printed colors precisely to displayed
colors. It is appropriate for bright
saturated colors used in illustrations and
graphs.
An additive color model that makes a
range of colors by combining red, green,
and blue light, called the additive
primaries. Commonly used to refer to
the color space, mixing system, or
monitor in color computer graphics.
process colors
simulation profile
The four colors used in printing to
simulate full-spectrum color images:
Cyan, Magenta, Yellow, blacK (CMYK).
The simulation profile describes the
color characteristics of another print
device, such as a printing press, that you
want the Fiery 3850C to simulate.
QuickDraw
Graphics and display technology built
into Mac OS computers. QuickDraw
applications rely on QuickDraw (rather
than the PostScript language) to send
text and pictures to printers.
raster image
Electronic representation of a page or
image using a grid of points called pixels.
rendering intent
The style of color rendering, or gamut
mapping, designed for a particular type
of color job. An example of a rendering
intent is Photographic rendering—also
referred to as Image rendering or
Contrast rendering—which is designed
for photographic images.
solid color rendering
A color rendering style intended for use
when color accuracy is crucial.
Unprintable colors are mapped to the
closest printable colors. Solid color
rendering does the best job of preserving
the saturation of displayed colors.
source color space
The color environment of the
originating source of an image, including
scanners and color monitors.
source profile
A profile used by the color management
system to determine the characteristics of
the color values specified in a source
digital image.
resolution
spectral light
The number of pixels per inch (ppi) in a
bitmap image or the number of dots per
inch (dpi) that a device can render.
The wavelengths of electromagnetic
radiation emitted by a given light source
that can be seen by the human eye.
G-7
Glossary
spot color
substrate
A color that is printed on its own
separation plate when separations are
specified. A spot color is printed using a
custom ink for that color, in contrast to
process colors that are printed using
combinations of cyan, magenta, yellow,
and black.
In printing, the material upon which the
job is printed.
Status T
A spectral response for graphic arts
reflection densitometers defined by
ANSI (the American National Standards
Institute).
subtractive color model
A system in which color is produced by
combining colorants such as paint, inks,
or dyes on media such as paper or
transparent film or acetate. All printing
devices use the subtractive color model.
subtractive primaries
Cyan, magenta, and yellow colorants
used in subtractive color systems for
color printing. Combining the
subtractive primaries produces darker
colors. Black is added to the subtractive
primaries to compensate for deficiencies
of the toners or inks, and for more
efficient black printing.
SWOP
The abbreviation for Specifications for
Web Offset Publications. A standard of
specifications for separations, proofs, and
color printing on a web offset press (not a
sheet fed press).
undercolor removal
In areas where all three process colors (C,
M, Y) overprint, the amounts of those
colors are reduced and replaced by black.
This improves wet ink trapping and
reduces ink costs in process color
printing.
vector image
Graphic illustration created on
computers where picture objects are
defined mathematically as lines or curves
between points. These mathematical
definitions are interpreted by an image
language such as PostScript. Vector
images include artwork created with
illustration applications (such as
Illustrator or FreeHand) and page layout
applications (such as PageMaker).
G-8
Glossary
white point
workflow
The color temperature of any white light
source, typically expressed in degrees
Kelvin (for example, 6500 K, typical for
the white of a monitor).
The path a print job follows from
creation to destination. A workflow may
originate with an RGB scan imported to
the client workstation and opened on the
desktop in an image processing
application, such as Photoshop. After
adjustments are made to the scanned
image, it is evaluated on a color proofing
device for eventual color printing on the
same device or on press.
Bibliography
Books
Adobe Print Publishing Guide. Adobe Systems Incorporated, 1995. (Comes as part of the
documentation for Adobe products such as Adobe Photoshop and Adobe Illustrator,
P/N 0397 0719.)
Blatner, David and Fraser, Bruce. Real World Photoshop 3: Industrial Strength Production
Techniques. Berkeley: Peachpit Press, 1996.
Bruno, Michael H., ed. Pocket Pal ®: A Graphic Arts Production Handbook. Seventeenth
Edition. Memphis: International Paper, 1997.
Hunt, R.W.G. The Reproduction of Colour. Fifth Edition. Surrey: Fountain Press, 1996.
Kieran, Michael. The Color Scanning Success Handbook. Toronto: DPA Communications
Corp., 1997.
Kieran, Michael. Understanding Desktop Color, Second Edition. Berkeley: Peachpit Press,
1994.
Margulis, Dan. Professional Photoshop: Color Correction, Retouching, and Image
Manipulation with Adobe Photoshop. John Wiley & Sons, 1995.
Miller, Marc D. and Zaucha, Randy. The Color Mac. Second Edition. Hayden Books,
1995.
X-Rite Color Guide and Glossary: Communication, Measurement, and Control for Digital
Imaging and Graphic Arts. X-Rite Incorporated, 1996. (Provided as part of the
documentation for X-Rite densitometers, P/N XRC-550.)
World Wide Web sites
International Color Consortium: www.color.org
Graphic Arts Technical Foundation: www.gatf.org
Seybold Seminars Online: www.seyboldseminars.com
Adobe Systems Incorporated: www.adobe.com
Magazines
Adobe Magazine. Seattle: Adobe Systems Incorporated
Publish!. San Francisco: Integrated Media Inc.
Index
Numerics
8-pin DIN plug 3-10, 3-27
A
Absolute Colorimetric 1-4
accent color A-7
additive color model A-3
additive primaries A-3
Adobe Illustrator, see Illustrator
Adobe PageMaker, see PageMaker
Adobe Photoshop, see Photoshop
Adobe PostScript Printer Driver
Mac OS 1-16
Apple Standard setting, RGB Source
option 1-5
B
bit depth, of raster images A-9, A-10
bitmaps A-5
see also raster images
Black Overprint option 1-3, 1-8
black text 1-8
line art 1-7
brightness A-1, A-3
C
CALIB.PS file 4-18
calibration
checking status 3-5
color 3-5
COM1 and COM2 port 3-9, 3-26
densitometer 3-8 to 3-11, 3-25 to 3-28
from ColorWise Pro Tools 3-2
from the Control Panel 3-2, 3-17, 3-29
importing measurements C-1
measurements 3-1, 3-2, 3-3, 3-35
overview 3-1 to 3-5
scheduling 3-4
targets 3-1, 3-2, 3-3
VisualCal 3-7
see also densitometer, ColorWise Pro
Tools
see also spectrophotometer, ColorWise
Pro Tools
calibration patch page 3-3
charts, using color in A-7
CIE
chromaticity diagram A-2, A-3
color model A-2
CIELAB color space B-3
CMY color model 5-3
CMYK Color Reference 5-2, 5-6
CMYK Simulation Profile option 1-3, 1-6
color
accent color A-7
additive model A-3
calibration 3-5
choosing in applications 5-1
CMY model 5-3
complements A-7
controlling printing results B-1
conversion by color management
systems B-4
custom color systems 5-5
defining in applications 5-1
HSB model 5-5, A-3
HSL model 5-3, 5-5
HSV model 5-3
illustration applications 9-1
physics of A-1
process colors A-6
proofing examples 2-13
properties of A-1
reference pages 5-2
RGB model 5-3, 5-5
setting default print options 4-19
I-2
Index
split complements A-7
spot colors 5-5, A-6
subtractive model A-3, A-4
subtractive primaries A-4
swatch color matching 5-6
text A-8
theory A-1
triads A-7
using effectively A-6 to A-8
wheel A-7
working with 5-1
colorants A-4
Color Charts 3-4
Colorimetric ICC rendering style 1-4
color management
basics B-3 to B-4
ColorWise 1-1 to 1-10, 2-2
color management print options for
Windows 98/Me 1-13
color management system (CMS) xiv, B-3
color matching systems, see custom color
systems
color monitors, see monitors
Color Reference pages 3-4
color rendering styles, see rendering styles
color space A-2
ColorSync B-3
color theory A-1
color wheel A-7
ColorWise B-3
key features xiv, 4-19
ColorWise Pro Tools
calibration from 3-2
checking calibration status 3-5
overview 3-16, 3-29 to 3-36
Commission Internationale de l’Eclairage, see
CIE
Comparison Page 3-35
complements, color A-7
compression, JPEG 7-12, 7-15, 7-18, 7-20
computer monitors, see monitors
Configuration page
calibration status 3-5
continuous tone devices A-6
Contrast ICC rendering style 1-4
Control Panel
calibration from 3-2, 3-17, 3-29
CorelDRAW 9-12
CRDs
bypassing 6-2, 8-2, 9-2
PostScript color matching 1-17
rendering intent 5-3
custom color systems 5-5, A-8
D
default color controls set in Setup 1-2
densitometer
calibrating 3-28
DTP32 3-1, 3-8 to 3-11, 3-25 to 3-28
DTP41 3-12
density patches 3-5
device profiles B-3
drivers, see printer drivers
E
EFICOLOR
profiles 8-8
XTension 8-8
EPS (Encapsulated PostScript)
color conversion of RGB EPS
images 1-5
recommended for imported images 6-1,
7-11, 7-18, 8-2, 9-1, 9-2, 9-8, 9-12,
9-14
RGB images saved with
Photoshop 7-12, 7-17, 7-18
Excel, see Microsoft Office
F
file size, of raster images 2-3, A-10
flexography A-5
font size, for color text A-8
FreeHand 5-5, 9-9, 9-12
I-3
Index
G
L
gamma B-4
Gamma option 1-2
gamut
of monitors B-2
of photographic transparencies B-2
of print devices B-1
gamut mapping B-3
GDI applications, using color in 5-3 to 5-5
Graphics Device Interface, see GDI
Graphics ICC rendering style 1-4
graphs, using color in A-7
gravure A-5
light A-1 to A-2
line art, see vector images
H
halftoning A-4, A-6
HSB color model 5-5, A-3
HSL color model 5-3, 5-5
HSV color model 5-3
hue, saturation, and brightness A-1, A-3
I
ICC profiles
assigning to RGB images 9-2
included with user software B-4
rendering styles 1-4
workflow 2-13
ICC standard for color management
systems B-3
ICM
profiles, applied to RGB images 9-2
illustration applications 9-1
Illustrator 5-5, 9-3, 9-9
Image Color Matching, see ICM
Image ICC rendering style 1-4
ink B-2
International Color Consortium, see ICC
J
JPEG 7-12, 7-15, 7-18, 7-20
M
Macintosh interface cable 3-10, 3-27
Mac OS
printer driver 1-16
Macromedia FreeHand, see FreeHand
maintenance of print devices B-2
measurements file 3-3, 3-35
metamerism A-2
Microsoft Excel, see Microsoft Office
Microsoft Office 6-1 to 6-2
Microsoft PowerPoint, see Microsoft Office
Microsoft Printer Driver
Windows 2000 1-15
Microsoft Word, see Microsoft Office
misregistration of colors A-8
moiré A-6
monitors
calibration B-3
color model A-3
gamut of B-2
phosphors A-3
N
named colors 5-5
None setting, RGB Source option 1-5
O
office applications 5-1, 5-3 to 5-5, 6-1 to 6-2
offset lithographic printing A-5
offset press printing A-5 to A-6
offset press print jobs, workflow issues 5-2
Other setting, RGB Source option 1-5
output profile
color conversion B-4
Output Profile option 1-3
P
page layout applications 8-1
I-4
Index
PageMaker 5-5, 8-3
painting applications A-9
PANTONE
color system 5-5
PANTONE Coated Color Reference 1-10,
5-2
paper stock B-2
passwords
for calibration 3-2, 3-17, 3-29
Perceptual ICC rendering style 1-4
phosphors A-3, B-4
Phosphors option 1-2
photographic prints A-4
Photographic rendering style 1-4
photographic transparencies A-4, B-2
Photoshop 5-5, 7-1 to 7-20
physics of color A-1
pixel-editing applications A-9, A-11
pixels in raster images A-9
PostScript and non-PostScript RGB
data 7-17
PostScript applications
color handling 5-5
using color in 5-5 to 5-8
PostScript printer description file, see PPD
PostScript Printer Driver
Windows 98/Me 1-12
PostScript printer drivers 6-2
PowerPoint, see Microsoft Office
PPD 1-11, 1-13, 1-15, 1-16, G-5
prepress proof A-5, B-1
presentation print jobs
rendering styles appropriate for 1-4
using color in A-7
Presentation rendering style 1-4
press simulation, see CMYK Simulation
option
print devices
consistency B-1
gamut B-1
maintenance B-2
printing test prints B-2
printer
recalibrating color output 3-5
printer drivers
Mac OS 1-16
Windows 1-12 to 1-16
printing
calibration pages 3-5
raster images A-9
techniques A-5
prism A-1
process colors 5-6, A-4, A-6
profiles, device B-3
proofing
prepress A-5, B-1
Pure Black Text/Graphics option 1-3, 1-7
Q
QuarkXPress 5-5, 8-6
QuickDraw applications, using color in 5-3
to 5-5
R
raster images A-9 to A-11
bit depth A-9, A-10
file size A-10
for offset press printing A-11
printing A-9
resolution A-10 to A-11
scaling of A-12
registration of colors A-8
Relative Colorimetric 1-4
Rendering Style option 1-2
rendering styles 1-4, 5-3
RGB color model 5-3, 5-5
RGB Color Reference 5-2, 5-4
RGB images
EPS, color conversion 1-5
PostScript and non-PostScript 1-6
RGB source color space, see source color
space
RGB Source option 1-2, 1-5
S
saturation A-1, A-3
I-5
Index
Saturation ICC rendering style 1-4
scaling of raster images A-12
scanners A-3
screens, used in halftoning A-6
Server Status option 3-5
Setup, default color controls set in 1-2
short-run color jobs, workflow issues 5-1
short-run color printing 2-1
simulation, see CMYK Simulation option
Source 1–10 option 1-5
source color space B-4
source color space profile
color conversion B-4
spectral colors A-2
spectral components of light A-1, A-2
spectrophotometer
calibrating 3-11
split complements A-7
Spot Color Matching option 1-3, 1-9, 5-7
spot colors 5-5, A-6
Status T C-1
subtractive color model A-3, A-4
subtractive primaries A-4
sunlight A-1
swatch color matching 5-6
T
targets 3-3
Test Page
calibration status 3-5
examining 3-5
test prints B-2
text
font size A-8
using color with A-8
TIFF images
assigning ICC profiles to 8-2
preview 7-12, 7-18
printing at full resolution 8-5
recommended for imported
images 7-11, 7-18, 8-2
RGB 9-2
tint A-3
toner B-2
transfer functions 3-3
transparencies (photographic) A-4, B-2
triads A-7
V
vector images A-9
visible spectrum of light A-1
VisualCal calibration method 3-5
W
white point B-4
White Point option 1-2
Windows 2000 printer driver 1-15
Windows 98/Me
color management print options 1-13
Windows 98/Me printer driver 1-12
Windows Graphics Device Interface, see GDI
applications
Word, see Microsoft Office
workflow
advanced 2-7
color proofing 2-1
ICC profiles 2-13
short-run jobs 2-1
simple 2-3
with Illustrator 2-9
with Photoshop 2-7, 2-15