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Xerox Fiery color server User Manual

Other manuals for Fiery color server: Brochure & Specs, Troubleshooting Tips
Manual is about: Color Server

Summary of Fiery color server

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    Color server fier y color reference.

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    Copyright © 2002 electronics for imaging, inc. All rights reserved. This publication is protected by copyright, and all rights are reserved. No part of it may be reproduced or transmitted in any form or by any means for any purpose without express prior written consent from electronics for imaging, ...

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    Rfi compliance notice this equipment has been tested concerning compliance with the relevant rfi protection requirements both individually and on system level (to simulate normal operation conditions). However, it is possible that these rfi requirements are not met under certain unfavorable conditio...

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    Limited warranty and disclaimer efi warrants to the original purchaser (“customer”) for thirty (30) days from the date of original purchase from efi or its authorized retailer that the software will perform in substantial conformance to the documentation when the product is used as authorized by efi...

  • Page 7: Contents

    Contents introduction basics of color management xi controlling printed color xii maintaining printer consistency xiii printer gamut xiv color conversion xv chapter 1: simple and advanced workflows workflow concepts 1-1 short-run printing versus color proofing 1-1 rgb, cmyk, and spot colors 1-2 desk...

  • Page 8: Chapter 4: Adobe Photoshop

    Viii contents chapter 3: office applications working with office applications 3-1 defining colors 3-1 working with imported files 3-1 selecting options when printing 3-2 output profiles 3-2 chapter 4: adobe photoshop creating a monitor profile 4-1 specifying color settings 4-2 photoshop 6.X color se...

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    Ix contents adobe pagemaker 7.X and 6.5 for mac os and windows 5-7 pagemaker color settings 5-7 windows version requirement 5-8 importing images 5-8 selecting options when printing 5-9 optional color management from pagemaker 5-10 quarkxpress 4.X for mac os and windows 5-10 importing images 5-11 sel...

  • Page 10: Glossary

    X contents coreldraw for windows and mac os 6-13 defining colors 6-13 importing images 6-13 specifying print options 6-14 saving files for importing into other documents 6-16 optional color management in coreldraw 6-16 appendix a: desktop color primer the properties of color a-1 the physics of color...

  • Page 11: Basics Of Color Management

    Xi basics of color management this manual introduces the concepts and issues associated with printing to the color server ™ . It outlines key workflow scenarios and provides application notes that explain how to print to the color server from popular microsoft windows and apple mac os applications. ...

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    Xii introduction n ote : if color matching between your monitor and printed output is critical, calibrate your monitor, as well as your color server. For most users, predictability of printed color output is adequate and monitor calibration is not necessary. For information on monitor calibration, s...

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    Xiii basics of color management maintaining printer consistency the factors described in the following sections affect printer 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,...

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    Xiv introduction printer 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 wh...

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    Xv basics of color management color conversion before you can print a color document, the color data in it must be converted to the gamut of the printer. Whether performed by the color server or a host-based cms, the process of converting color data for a printer is the same: the cms interprets rgb ...

  • Page 17: Workflow Concepts

    1 1-1 workflow concepts this chapter discusses color management workflows used in short-run color printing, as well as color proofing on the color server. It also gives examples of color management in specific desktop applications and discusses the interaction between those applications and colorwis...

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    1 1-2 simple and advanced workflows rgb, cmyk, and spot colors colors can be defined in several different color models, the most common being rgb , cmyk , and the spot color matching system. Each model requires a different color conversion at the color server. These different color conversion workfl...

  • Page 19: Simple Workflows

    1 1-3 simple workflows using colorwise color management over desktop color management relieves your computer from having to perform additional processing. Delaying color conversions until the color data reaches the color server frees your computer so you can continue working, and color conversions o...

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    1 1-4 simple and advanced workflows 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 color server. If you are not equipped or inclined to maintain accurate ...

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    1 1-5 simple workflows n ote : cmyk simulation set to none is also useful when you want to prepare an output profile of your calibrated color server 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 calibrat...

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    1 1-6 simple and advanced workflows the color server comes into play near the end of the color workflow. To ensure the colors you selected reach the color server and colorwise in a usable form, bypass any color management from applications and printer drivers. Keep in mind, however, that colorwise f...

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    1 1-7 simple workflows the following diagram indicates that no modifications are made to colors in this workflow. Turn off color management in your application generally, when printing to the color server, it is best to disable color management in the application to ensure the color server receives ...

  • Page 24: Advanced Workflows

    1 1-8 simple and advanced workflows 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 ...

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    1 1-9 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 • rgb separation set to output the following diagram indicates the steps for this particular workflow in black. Photosho...

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    1 1-10 simple and advanced workflows photoshop rgb with illustrator and quarkxpress cmyk and spot colors this workflow involves short-run printing of a complex page layout with images saved in photoshop, illustrations created in illustrator, and spot colors. A photoshop image is saved in an rgb colo...

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    1 1-11 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 • rgb separation set to output • cmyk simulation set to none • spot color matching set to on the following diagram indi...

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    1 1-12 simple and advanced workflows photoshop rgb with illustrator cmyk and spot colors and powerpoint rgb this workflow involves short-run printing of a complex presentation document with images saved in photoshop, illustrations created in illustrator, and spot colors. All elements are imported in...

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    1 1-13 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 • rgb separation set to output • cmyk simulation set to none • spot color matching set to on the following diagram indi...

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    1 1-14 simple and 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 s...

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    1 1-15 advanced workflows the colorwise settings used in this example are: • cmyk simulation profile set to the desired press standard or the corresponding custom simulation (simulation 1-10) if you downloaded your profile with colorwise pro tools • cmyk simulation method set to full (source gcr) th...

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    1 1-16 simple and 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 photos...

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    1 1-17 advanced workflows the colorwise settings used in this example are: • cmyk simulation profile set to simulation-1 • cmyk simulation method set to full the following diagram indicates the steps for this particular workflow in black. Photoshop5.X rgb-to-cmyk workflow photoshop 5.X printer drive...

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    1 1-18 simple and advanced workflows photoshop rgb and quarkxpress cmyk this workflow exemplifies the use of the rgb separation feature of colorwise. An rgb image, originally saved in photoshop, is printed to the color server from quarkxpress. To simulate how the rgb image would print on an offset p...

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    1 1-19 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 • rgb separation set to simulation • cmyk simulation profile set to swop • cmyk simulation method set to full (source g...

  • Page 37: Working With Color

    2 2-1 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 ( graphics device interface ) or quickdraw...

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    2 2-2 working with color in applications the type of printing you plan for the document—short-run color printing on the color server versus color proofing for eventual printing on an offset press—determines the way you define colors, as well as the print option settings you choose. • for short-run c...

  • Page 39: Office Applications

    2 2-3 office applications office applications the color server 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 processing, spread...

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    2 2-4 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 color server user software. You can print these files using different crds to see how the colors appear when pr...

  • Page 41: Postscript Applications

    2 2-5 postscript applications postscript applications most applications used for illustration, pixel editing, and page layout can create the postscript information they send to a postscript printer or save in postscript files. Illustrator, photoshop, pagemaker, quarkxpress, and macromedia freehand a...

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    2 2-6 working with color in applications 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 ...

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    2 2-7 postscript applications using the cmyk color reference the cmyk color reference included with your color server user software allows you to see how various cyan, magenta, yellow, and black combinations look when printed on your printer. To print the cmyk color reference, download the file to t...

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    2 2-8 working with color in applications the information printed by the pantone coated color reference depends on the spot color matching setting. • on —prints swatches of the closest cmyk equivalents of pantone colors your printer can produce. The equivalent pantone color name/number is printed bel...

  • Page 45: Chapter 3:

    3 3-1 working with office applications the colorwise color management system provides complete color management for jobs printed from office applications. This chapter provides instructions for printing color documents from gdi (graphics device interface) and quickdraw applications, such as presenta...

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    3 3-2 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 impor...

  • Page 47: Creating A Monitor Profile

    4 4-1 creating a monitor profile 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. Because photoshop uses a sophisticate...

  • Page 48: Specifying Color Settings

    4 4-2 adobe photoshop 3. Follow the step-by-step instructions in the assistant or wizard to calibrate your monitor and create a monitor profile. Specifying color settings the following sections outline the recommended color settings for photoshop 6.X and 5.X in a color server workflow. These color s...

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    4 4-3 specifying color settings 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 i...

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    4 4-4 adobe photoshop 3. 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 color server. In most cases, this is efirgb. Conside...

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    4 4-5 specifying color settings 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 photosho...

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    4 4-6 adobe photoshop t o set profile defaults in p hotoshop 5. X 1. Choose color settings>profile setup from the photoshop 5.X file menu. 2. In the embed profiles area, specify whether to embed the appropriate icc profiles when saving a file. Unless you are an advanced color user, we recommend that...

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    4 4-7 specifying color settings when you open a file that contains 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 y...

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    4 4-8 adobe photoshop the monitor area shows the currently selected profile in the adobe gamma control panel. Select both the display using monitor compensation and preview options. T o set cmyk defaults 1. Choose color settings > cmyk setup from the photoshop 5.X file menu. 2. Select the preview op...

  • Page 55: Saving Files

    4 4-9 saving files • for engine, choose built-in so that the photoshop engine will be used. • for 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. At times it may be useful to...

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    4 4-10 adobe photoshop t o save a document from p hotoshop 6. X or 5. X 1. Choose save as from the file menu. The save as dialog box appears. 2. Specify settings in the save as dialog box. • specify a name, file format, and saved location for the document. • clear the embed color profile option (mac...

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    4 4-11 saving files 3. Click save. If you chose photoshop eps as the format, the eps options dialog box appears. 4. Specify eps options and click ok. • choose a tiff preview option. A tiff preview is compatible with both windows and mac os computers. • do not select the postscript color management o...

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    4 4-12 adobe photoshop advanced tips for using postscript color management use the following information to implement alternative, more complex, color workflows with photoshop. Saving eps documents with postscript color management selecting the postscript color management option when saving either a...

  • Page 59: Defining Colors

    4 4-13 defining colors 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 2 . Selecting op...

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    4 4-14 adobe photoshop 2. Choose the color server destination from the printer menu, and then choose adobe photoshop. 3. Choose an encoding method. 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. Occasi...

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    4 4-15 selecting options when printing advanced tips for printing with photoshop postscript color management use the following information to implement alternative, more complex, color workflows with photoshop. • to use postscript color management with photoshop 6.X, choose postscript color manageme...

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    4 4-16 adobe photoshop the destination color space for the crds is determined by the rgb separation print option. If rgb separation is set to simulation, the cmyk image is printed according to all specified cmyk simulation profile and cmyk simulation method settings. If rgb separation is set to outp...

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    5 5-1 working with page layout applications this chapter provides instructions for printing color documents from adobe indesign 1.5.2, adobe pagemaker 7.X and 6.5, and quarkxpress 4.02 and 3.32. Before printing from these applications, make sure the appropriate printer driver and the color server pp...

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    5 5-2 page layout applications importing images eps (or epsf) 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 a...

  • Page 65: Adobe Indesign 1.5.2

    5 5-3 adobe indesign 1.5.2 cmyk simulation you can specify a cmyk simulation profile and a cmyk simulation method for a job using the cmyk simulation profile and cmyk simulation method print options (see the color guide ). The cmyk simulation setting affects all cmyk color data sent by the page layo...

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    5 5-4 page layout applications t o disable i n d esign color management 1. Choose color settings > document color settings from the edit menu. The document color settings dialog box appears. 2. Clear the enable color management option and click ok. Importing images all rgb images, except for rgb tif...

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    5 5-5 adobe indesign 1.5.2 t o disable i n d esign color management when importing images 1. Choose place from the file menu. The place dialog box appears. 2. Select the show import options option. 3. Select the file you want to import and click place. The image import options dialog box appears. 4....

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    5 5-6 page layout applications t o set print options from the w indows version of i n d esign 1.5.2 1. Choose print from the file menu. The print dialog box appears. 2. Choose the color server from the name menu. 3. Click properties. 4. Click the fiery printing tab in the dialog box that appears. Th...

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    5 5-7 adobe pagemaker 7.X and 6.5 for mac os and windows t o set print options from the m ac os version of i n d esign 1.5.2 1. Choose print from the file menu. The print dialog box appears. 2. Choose the color server from the printer menu. 3. Choose printer specifc options from the options menu. Th...

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    5 5-8 page layout applications t o 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. T o disable color management for a bitmapped ...

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    5 5-9 adobe pagemaker 7.X and 6.5 for mac os and windows selecting options when printing all print settings are specified from the various print dialog boxes in pagemaker 7.X or 6.5. The printer driver interface described in the color guide is not used. T o set print options when printing from p age...

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    5 5-10 page layout applications 4. 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 col...

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    5 5-11 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 color server. Rgb source and rendering style settings have no effect on this data unless you use quark printrgb xtension, which outputs rgb tiff image fil...

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    5 5-12 page layout applications 2. If the document contains pantone colors, choose the appropriate spot color matching setting. For instructions on specifying print options, see the color guide . Optional color management from quarkxpress if you have additional color management requirements not offe...

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    5 5-13 quarkxpress 3.32 for mac os and windows windows version requirement for the windows version of quarkxpress, make sure a copy of the color server ppd file is in the \xpress\pdf folder. Importing images all rgb images placed in a document are affected by your rgb source and rendering style sett...

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    5 5-14 page layout applications 2. 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 instructi...

  • Page 77: Chapter 6:

    6 6-1 working with illustration applications this chapter provides instructions for using adobe illustrator, macromedia freehand, and coreldraw for windows and mac os. Before printing from these applications, make sure the appropriate postscript printer driver and the color server ppd are installed ...

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    6 6-2 illustration applications 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 color server. This conversion by the application will determine which colorwise print options affect your job. For examp...

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    6 6-3 adobe illustrator for windows and mac os cmyk simulation you can specify a press simulation target and a press simulation method for the job with print options (see the color guide ). The cmyk simulation setting affects all cmyk color data sent by the illustration application. • if the documen...

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    6 6-4 illustration applications specifying print options the following procedure outlines the recommended color settings for illustrator 9.X in a color server workflow. T o specify color settings 1. Choose color settings from the edit menu. The color settings dialog box appears. 2. Select advanced m...

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    6 6-5 adobe illustrator for windows and mac os 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 color server. New...

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    6 6-6 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 f...

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    6 6-7 adobe illustrator for windows and mac os 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 color server. T o set print options in i llustrator 1. Choose print from the file menu in illustrator. The pri...

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    6 6-8 illustration applications 3. For the mac os version of illustrator, specify appropriate print options. • choose the color server device 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 ...

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    6 6-9 freehand 9.X and 8.X for windows and mac os 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 illustrator files imported into photoshop, however, vector data from the illustrator file...

  • Page 86

    6 6-10 illustration applications defining colors any colors defined in freehand are sent to the device in cmyk—even those defined using other color models. For best results, use the color definition methods described on page 2-6 . You can control the conversion of rgb colors defined in freehand by s...

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    6 6-11 freehand 9.X and 8.X for windows and mac os t o set options when printing from f ree h and 1. Select the use ppd option in the print dialog box. 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 p...

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    6 6-12 illustration applications 4. Make sure the “convert rgb to process” option is cleared. If this option is selected, freehand color management settings are used to convert rgb colors and rgb tiff, pict, and jpeg images to cmyk. 5. If a document contains placed rgb images, choose rgb source and ...

  • Page 89

    6 6-13 coreldraw for windows and mac os coreldraw for windows and mac os the following sections describe the recommended color settings for coreldraw 9.X and 8.X. Defining colors any colors defined in coreldraw 9.X for windows or coreldraw 8.X for mac os are sent to the device in cmyk—even those def...

  • Page 90

    6 6-14 illustration applications specifying print options the following procedure outlines how to set print options when printing from coreldraw 9.X or 8.X to the color server. T o set print options in c orel draw 1. On windows computers, click the general tab, and then click print. 2. Make sure you...

  • Page 91

    6 6-15 coreldraw for windows and mac os 4. On mac os computers, click printer in the general print dialog box to select the device and print options. To use colorwise color management, make sure the “use color profile” option on the misc tab of the print dialog box is cleared. If this option is sele...

  • Page 92

    6 6-16 illustration applications 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...

  • Page 93: The Properties Of Color

    A a-1 desktop color primer this appendix covers concepts that are basic to printing in color, including: • properties of color • printing techniques • effective use of color • raster images and vector images • file optimization for processing and printing if you are already familiar with color theor...

  • Page 94

    A a-2 desktop color primer shining sunlight through a prism separates it into its spectral components, resulting in the familiar rainbow of colors shown in the following figure. Like the sun, most light sources we encounter in our daily environment emit a mixture of light wavelengths, although the p...

  • Page 95

    A a-3 desktop color primer 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 ...

  • Page 96

    A a-4 desktop color primer 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. Hue, saturation, and brightness a color can be described in terms of three varying charact...

  • Page 97

    A a-5 desktop color primer 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 that can be reconfigured according to your preference (as shown in the following figure). Additive ...

  • Page 98

    A a-6 desktop color primer combining varying amounts of any two of the additive primaries creates a third, saturated hue. A familiar device that is based on this color model is the computer monitor, shown in the following figure. Monitors have red, green, and blue phosphors that emit varying amounts...

  • Page 99

    A a-7 desktop color primer subtractive (cmy and cmyk) color the subtractive color model is the basis for color printing, 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 ...

  • Page 100

    A a-8 desktop color primer.

  • Page 101: Printing Techniques

    A a-9 desktop color primer 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 o...

  • Page 102: Using Color Effectively

    A a-10 desktop color primer some color printers are commonly referred to as continuous tone (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 ...

  • Page 103

    A a-11 desktop color primer a few rules of thumb try some of the following strategies for creating successful color materials: • use color to aid comprehension, rather than applying colors indiscriminately. In presentations, graphs, and charts, use color to highlight patterns and emphasize differenc...

  • Page 104

    A a-12 desktop color primer colors opposite one another on the color wheel are called complements (see example a in the following figure), 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 ...

  • Page 105

    A a-13 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...

  • Page 106: Stop!

    A a-14 desktop color primer 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 ...

  • Page 107

    A a-15 desktop color primer 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. Bl...

  • Page 108

    A a-16 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 raste...

  • Page 109

    A a-17 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 necessary for offset printing, when quality is of the utmost importance, or for imag...

  • Page 110

    A a-18 desktop color primer scaling ideally, each raster image should be saved at the actual size, and it will be placed in the document at the optimal resolution for the printer. If the image resolution is correct for the printer, there is no quality advantage to be gained by scaling an image to a ...

  • Page 111: Glossary

    Additive color model 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. Additive primaries red, green, and blue light used in additive color systems. When blended together in proper amounts...

  • Page 112

    G-2 glossary color management system (cms) system used to match color across different input, display, and output devices. 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, y...

  • Page 113

    G-3 glossary dcs (desktop color separation) a data file standard defined by quark, inc., to assist in making color separations with desktop publishing systems; 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 im...

  • Page 114

    G-4 glossary gif (graphics interchange format) 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. Gradient a smooth transition between two different colors or tw...

  • Page 115

    G-5 glossary 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.” moiré an undesirable pattern in images made using halfton...

  • Page 116

    G-6 glossary 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. Presentation graphics rendering a color rendering style that creates saturated col...

  • Page 117

    G-7 glossary spectral light the wavelengths of electromagnetic radiation emitted by a given light source that can be seen by the human eye. Spectrophotometer an instrument commonly used in the graphic arts industry to measure spectral light according to a specified standard. Spot color a color that ...

  • Page 118

    G-8 glossary workflow 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 evalua...

  • Page 119: Bibliography

    Books adobe print publishing guide. Adobe press, 2001. Isbn: 1568304684 blatner, david and fraser, bruce. Real world photoshop 6. Berkeley: peachpit press, 2001. Isbn: 020m21996 bruno, michael h., ed. Pocket pal ® : a graphic arts production handbook. Eighteenth edition. Memphis: international paper...

  • Page 121: Index

    Index a accent color a-11 additive color model a-5 additive primaries a-5 adobe illustrator, see illustrator adobe indesign, see indesign adobe pagemaker, see pagemaker adobe photoshop, see photoshop b bit depth, of raster images a-15, a-16 bitmaps a-9 see raster images brightness a-1, a-4 c calibra...

  • Page 122

    I-2 index computer monitors, see monitors continuous tone devices a-10 coreldraw 6-13 to 6-16 crds bypassing 3-2, 5-2, 6-2 rendering intent 2-3 custom color systems 2-5, a-13 d device profiles xi e eficolor profiles 5-12 xtension 5-12 eps (encapsulated postscript) recommended for imported images 3-1...

  • Page 123

    I-3 index o office applications 2-1, 2-3 to 2-5, 3-1 to 3-2 offset lithographic printing a-9 offset press print jobs, workflow issues 2-2 offset press printing a-9 to a-10 output profile color conversion xv p page layout applications 5-1 pagemaker 2-5, 5-7 to ?? Painting applications a-14 pantone co...

  • Page 124

    I-4 index spot colors 2-5, 2-6, a-10 subtractive color model a-5, a-7 subtractive primaries a-7 sunlight a-1 swatch color matching 2-6 t test prints xiii text font size a-14 using color with a-13 tiff images assigning icc profiles to 5-2 preview 4-11 printing at full resolution 5-9 recommended for i...