Color Network Printer Board-A1 Color Guide Printer (PS) Manual Please read this manual before operating this equipment. After you finish reading this manual, store it in a safe place for future reference.
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Contents Introduction About the documentation xiii Key features of ColorWise xiv Chapter 1: iR C2100/2100S Color Management Managing color on the iR C2100/2100S 1-1 Rendering styles 1-4 RGB Source Profile 1-5 RGB Separation 1-6 CMYK Simulation Profile 1-7 CMYK Simulation Method 1-8 Output Profile 1-9 Pure Black Text/Graphics 1-9 Black Overprint 1-10 Spot Color Matching 1-11 Printer Drivers and Print Options 1-12 What a printer driver does 1-12 PostScript printer driver for Window
viii Contents Chapter 3: Color Calibration Introduction 3-1 Understanding calibration 3-2 How calibration works 3-2 Scheduling calibration 3-4 Checking calibration status 3-4 Using a densitometer 3-5 Setting up the densitometer 3-5 Calibrating the densitometer 3-7 Calibrating with ColorWise Pro Tools 3-8 Expert Mode 3-13 Calibrating from the Control Panel using ReaderCal 3-15 Removing calibration 3-16 Calibrating from the Control Panel using VisualCal 3-16 Limits and 30% Match 3-17 Gra
ix Contents Chapter 6: Office Applications Working with office applications 6-1 Defining colors 6-1 Working with imported files 6-1 Selecting options when printing 6-2 Output profiles 6-2 Chapter 7: Adobe Photoshop Photoshop 5.x 7-1 Photoshop 5.x color settings 7-1 ColorSync defaults 7-6 Defining colors 7-6 Saving files for importing into other documents 7-7 Selecting options when printing 7-9 Printing tips for advanced users 7-10 Photoshop 4.
x Contents Chapter 9: Illustration Applications Working with illustration applications 9-1 Defining colors 9-1 Importing images 9-2 CMYK simulation 9-2 Adobe Illustrator 8.x for Windows and Mac OS 9-3 Defining colors 9-3 Importing images 9-3 Optional Color Management in Illustrator 9-3 Selecting options when printing 9-4 Saving files for importing into other documents 9-5 Macromedia FreeHand 8.
xi Contents Using color effectively A-6 A few rules of thumb A-6 Color wheel A-7 Color and text A-7 Raster images and vector images A-8 Optimizing files for processing and printing A-9 Resolution of raster images A-9 Scaling A-11 Appendix B: Color Management Controlling printed color B-1 Maintaining copier/printer consistency B-1 Print device gamut B-2 Basics of color management B-3 Color conversion B-4 Appendix C: Importing densitometer measurements Simple ASCII Import File Form
xiii Introduction About the documentation Welcome to the Color Guide. This manual introduces you to the concepts and issues associated with printing to the Color Network Printer Board-A1™, a special-purpose controller board built into the Canon iR C2100/C2100S series. It enables you to use your copier/printer as a high-speed, networked color printer.
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, be sure to read Appendixes A and B or check the glossary.
xv Key features of ColorWise There are a number of features that can be used to modify printing results. Depending on your particular needs, you can: • Set the behavior of CMYK printing to emulate DIC, Euroscale, and SWOP offset press standards • Match PANTONE colors for the best match when printed using fourcolor press conditions or when printed using presses with extra, custom plates • Select a color rendering dictionary (CRD), also called a rendering style, for RGB printing.
1 1-1 Chapter 1: iR C2100/ 2100S Color Management Managing color on the iR C2100/2100S The first part of this chapter describes the options available from the ColorWise color management system and explains how you can customize the color settings for your particular needs. It provides descriptions of the preset default settings of ColorWise and covers additional options for users who need to customize ColorWise.
1 1-2 iR C2100/2100S Color Management iR C2100/2100S color management generates CMYK data to be sent to the copier/printer; additional processing may then be performed before printing begins. The diagram below illustrates the print options in the iR C2100/2100S color management process that affect color data conversions. You access these print options when you send a print job to the iR C2100/2100S. Most of these options and settings are described in subsequent sections of this chapter.
1 1-3 Managing color on the iR C2100/2100S Settings for the following options can be specified via print options when you send a job to the iR C2100/2100S. Some can also be set as defaults by the administrator during iR C2100/2100S Setup. Settings specified via print options override the defaults.
1 1-4 iR C2100/2100S Color Management iR C2100/2100S color print option: Quick simulation applies one-dimensional transfer curves that adjust output density only. Full simulation applies colorimetric transformations that adjust hue as well as output density (see page 1-8).
1 1-5 Managing color on the iR C2100/2100S Equivalent ICC rendering style: iR C2100/2100S rendering style: Best used for: 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.
1 1-6 iR C2100/2100S Color Management • 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.
1 1-7 Managing color on the iR C2100/2100S The two choices available for this option determine whether RGB data is converted into the full gamut of the copier/printer (Output) or whether it is first converted into the gamut of another digital printer or a press standard (Simulation). This feature is helpful for making one device behave like another for RGB data. For example, if a high-quality ICC profile is available for another print device, the copier/printer can simulate the behavior of that device.
1 1-8 iR C2100/2100S Color Management N OTE : If you are printing with the PostScript printer driver on a Windows 95/98 computer, the name of each profile is visible in the pop-up menu for the CMYK Simulation Profile setting. If you are printing with the PostScript printer driver on Windows NT, Windows 2000, or a Mac OS computer, custom simulations appear as Simulation 1 through Simulation 10.
1 1-9 Managing color on the iR C2100/2100S Output Profile The output profile is applied to all data in the print job, so make sure the selected profile is right for your job. The default output profile consists of both a profile for your copier/printer, describing its color characteristics, and a calibration target that describes the expected behavior of the copier/printer. You can use ColorWise Pro Tools’ Profile Manager to download your own output profile to the iR C2100/2100S (see page 4-5).
1 1-10 iR C2100/2100S Color Management N OTE : The Pure Black Text/Graphics option can be used only when printing composites, not when printing separations. Input black color: RGB Pure Black Text/Graphics: On Prints 100% black Off 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 copier/printer.
1 1-11 Managing color on the iR C2100/2100S N OTE : PostScript applications may perform their own black overprint conversions before sending the print job to the iR C2100/2100S. 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%.
1 1-12 iR C2100/2100S 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 iR C2100/2100S uses its built-in table to generate the best matches of the PANTONE colors that your copier/printer can produce. The PANTONE number is printed below each swatch.
1 1-13 Printer Drivers and Print Options Your iR C2100/2100S user software includes Adobe PostScript printer drivers for Windows 95/98, Windows NT 4.0, and Mac OS computers or Microsoft PostScript printer driver for Windows 2000. These are the recommended printer drivers for printing to the iR C2100/2100S. (See Getting Started for information on installing printer drivers.) N OTE : For information on setting the color print options in the Windows 2000 printer driver, see the Printing Guide.
1 1-14 iR C2100/2100S Color Management Setting color management print options for Windows 95/98 This section explains how to set iR C2100/2100S color print options with the Adobe PostScript printer driver version 4.3.x for Windows 95/98, a PostScript 3 printer driver that can take full advantage of the color features of the iR C2100/2100S. Before you proceed, make sure you have completed the following procedures described in Getting Started: • Install the Adobe PostScript Printer Driver version 4.3.
1 1-15 Printer Drivers and Print Options Click the Expert Settings button to access additional ColorWise options Click the Expert Settings button on the ColorWise window (above), and click Update to display the current iR C2100/2100S settings. This brings up the Expert Color Settings flowchart window (below), which displays additional color settings for the iR C2100/2100S. Each option includes a pop-up menu from which you can select settings for your specific job.
1 1-16 iR C2100/2100S Color Management Selecting Other for RGB Source Profile brings up the following window for specifying custom RGB source settings (see page 1-5). Clicking on the Update button on the lower right-hand side of the Expert Color Settings window (on the previous page) queries the iR C2100/2100S for the current default settings. This feature is available only when you enable Two-Way Communication in the driver (see Getting Started).
1 1-17 Printer Drivers and Print Options To set print options, open the PPD as described on page 1-13. From the Advanced tab of the Default Document Properties dialog box, choose settings for the print options described on page 1-3. Setting color management print options for Windows 2000 This section explains how to set iR C2100/2100S color print options with the Microsoft PostScript Printer Driver for Windows 2000.
1 1-18 iR C2100/2100S Color Management To set print options, open the PPD as described on page 1-13. From the Advanced tab of the Printing Preferences dialog box, choose settings for the print options described on page 1-3. Adobe PostScript printer driver for Mac OS This section explains how to set color management print options with the AdobePS 8.
1 1-19 Printer Drivers and Print Options Setting color management print options You choose print options from the various panes of the AdobePS driver dialog box. To access the initial AdobePS dialog box, choose Print from your application’s File menu. N OTE : The word “pane” is used to describe the different pages that appear in the driver’s dialog box when you make selections from the pull-down menu at the top left. Each pane presents a particular set of print options.
1 1-20 iR C2100/2100S Color Management Setting iR C2100/2100S color management options In the AdobePS Print dialog box, choose Color Matching from the pulldown menu. Choose Color Matching from the pull-down menu In the Color Matching pane, choose Color/Grayscale from the Print Color pop-up menu.
1 1-21 Printer Drivers and Print Options In the Printer Specific Options pane, choose settings for the print options described on page 1-3. 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 iR C2100/2100S. It also gives examples of color management in specific desktop applications and 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.
2 2-2 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 iR C2100/2100S. These different color conversion workflows are explained below.
2 2-3 Simple workflows One advantage of using ColorWise color management over desktop color management is that your computer is spared the added processing chores; delaying color conversions until the color data reaches the iR C2100/2100S frees up your computer so you can continue working, and color conversions on the iR C2100/2100S are in most cases much faster than similar conversions on a host computer.
2 2-4 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 copier/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 for you— printed colors or monitor displayed colors.
2 2-5 Simple workflows N OTE : CMYK Simulation set to None is also useful when you want to prepare an output profile of your calibrated copier/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.
2 2-6 Simple and Advanced Workflows The iR C2100/2100S comes into play near the end of the color workflow. To ensure that the colors you have selected reach the iR C2100/2100S 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).
2 2-7 Advanced workflows Turn off color management in your application Generally, when printing to the iR C2100/2100S, it is best to disable color management in the application to ensure that the iR C2100/2100S receives color data properly and prints it accurately. Save your files using color-safe settings There are several additional steps you can take to ensure color accuracy. • When saving EPS files, do not include PostScript Color Management information.
2 2-8 Simple and Advanced Workflows Short-run printing examples The following examples illustrate short-run printing on the iR C2100/ 2100S. Photoshop RGB workflow This short-run workflow of printing an RGB image from Photoshop is one of the simplest iR C2100/2100S color workflows. In it, RGB data is sent from the application, through the printer driver, to the iR C2100/2100S, and the RGB-to-CMYK conversion takes place on the iR C2100/2100S using a CRD rather than in the application.
2 2-9 Advanced workflows The diagram below indicates the steps for this particular workflow in black.
2 2-10 Simple and Advanced Workflows • Print the QuarkXPress document to the iR C2100/2100S. • Use ColorWise to convert the RGB image to copier/printer CMYK, to adjust the process colors for short-run printing, and to match the PANTONE spot colors using the full copier/printer gamut.
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.
2 2-12 Simple and Advanced Workflows The diagram below indicates the steps for this particular workflow in black.
2 2-13 Advanced workflows 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 iR C2100/2100S.
2 2-14 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 Photoshop 5.x’s Built-in color conversion features in the CMYK Setup option. (For more information on CMYK Setup, see your Photoshop 5.x documentation.
2 2-15 Advanced workflows The diagram below indicates the steps for this particular workflow in black. Photoshop5.x RGB-to-CMYK workflow Photoshop 5.
2 2-16 Simple and Advanced Workflows • CMYK Simulation Profile set to SWOP • CMYK Simulation Method set to Full The diagram below indicates the steps for this particular workflow in black.
3 3-1 Chapter 3: Color Calibration Introduction Calibrating the iR C2100/2100S ensures consistent, reliable color output. You can calibrate the iR C2100/2100S with ColorWise Pro Tools using an X-Rite DTP32 automatic scanning densitometer (available as an option). By connecting the densitometer to the serial port on your computer, you can quickly measure color patches and download measurements to the iR C2100/2100S.
3 3-2 Color Calibration • A calibration target that describes the expected behavior of the copier/printer is contained in each output profile. Once you have calibrated the iR C2100/2100S, a calibration set is stored on the iR C2100/2100S. This calibration set will be 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.
3 3-3 Understanding calibration 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-to-day variations in densities, and calibration corrects for them. Calibration works by creating calibration curves on the iR C2100/2100S that compensate for the difference between actual (measured) and desired (target) density values.
3 3-4 Color Calibration Scheduling calibration In general, you should calibrate the iR C2100/2100S at least once a day, depending on the volume of print jobs. If it is very important to maintain consistent color, or if the copier/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.
3 3-5 Using a densitometer Using a densitometer ColorWise Pro Tools are designed to work with the X-Rite DTP32 reflection densitometer where color measurements are entered automatically. When you cannot obtain an expected result with ReaderCal, use this procedure. N OTE : Measurements from other densitometers can be input using a simple ASCII file format (see page C-1).
3 3-6 3. Color Calibration 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.
3 3-7 4. Calibrating the densitometer 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 page 3-7). 7. Use ColorWise Pro Tools to calibrate the iR C2100/2100S (see page 3-8). Calibrating the densitometer You will need the black-and-white X-Rite Auto-Cal Strip included with the densitometer.
3 3-8 4. Color Calibration 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.
3 3-9 TO Calibrating with ColorWise Pro Tools CALIBRATE THE COPIER / PRINTER USING 1. C ALIBRATOR : Launch ColorWise Pro Tools and connect to the iR C2100/2100S. For instructions on configuring the connection to the iR C2100/2100S, see Getting Started. N OTE : If the connection to the iR C2100/2100S 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 3-10 3. Color Calibration Select a measurement method. ReaderCal (copier only) and X-Rite DTP32 should appear as the measurement methods. This information is provided to Calibrator by the iR C2100/2100S. If neither option appears, make sure you are connected to the iR C2100/2100S. 4. Under Check Print Settings, choose the desired calibration set. Choose the appropriate calibration set you will use most often.
3 3-11 Calibrating with ColorWise Pro Tools In the Paper Size pop-up menu, specify the paper size for the measurement page: For ReaderCal, LTR/A4 appears in this menu. For densitometer, the menu will automatically select LTR/A4 for 21 Sorted Patches or 11x17/A3 for 34 Sorted Patches. In the Input Tray pop-up menu, specify the paper source. Print Options windows for DTP32 (left) and ReaderCal (right) calibration methods 7. Under Get Measurements, click Measure. 8.
3 3-12 9. Color Calibration If you chose the densitometer method, select the Page Type and Paper Size options you selected for the measurements page, and click Measure. Then 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. 10.
3 3-13 TO Calibrating with ColorWise Pro Tools 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. Expert Mode Expert Mode offers two additional options: Print Pages and View Measurements.
3 3-14 Color Calibration 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 print the file to the Hold Queue of the iR C2100/2100S from your application or download it to the Hold Queue with Fiery Downloader.
3 3-15 Calibrating from the Control Panel using ReaderCal Calibrating from the Control Panel using ReaderCal You can calibrate the iR C2100/2100S from the Control Panel using ReaderCal, which calibrates the iR C2100/2100S using the copier’s built-in scanner as a densitometer. If an Administrator password has been set, you will need it for calibration. N OTE : This method is for the copier model only. If you have the printer model, use the VisualCal calibration method described on page 3-16.
3 3-16 12. Color Calibration Click OK. Status messages display the progress of scanning and calculating measurements. 13. When prompted to Print Comparison Page (Expert Mode only), select Yes to print a preview of the selected calibration. Select from a list of output profiles that use the same calibration set and press OK. This option appears only in Expert Mode calibration. 14. When prompted to overwrite calibration, select Yes. 15. Select Yes to confirm.
3 3-17 Calibrating from the Control Panel using VisualCal 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.
3 3-18 7. Color Calibration 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.
4 4-1 Chapter 4: ColorWise Pro Tools Profile Manager ColorWise Pro Tools are color management applications that give you flexible control of color printing. There are two tools: • Calibrator (see Chapter 3) • Profile Manager 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.
4 4-2 ColorWise Pro Tools Several profiles are provided with the iR C2100/2100S, and you can create additional ones as needed by modifying the existing ones. You can also download profiles from any workstation to the iR C2100/2100S.
4 4-3 TO Profile Manager 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 iR C2100/2100S. 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.
4 4-4 ColorWise Pro Tools 3. In the Profile Settings dialog box, click Default and click Apply. 4. Click OK. 5. In the main Profile Manager window, the target icon appears next to the new default profile you specified. Repeat steps 2 through 4 for each type of profile. Profile Settings windows for Simulation (left) and Output (right) If no default is set for RGB Source, then the RGB Source print option is set to None.
4 4-5 Profile Manager Downloading profiles The iR C2100/2100S comes with default profiles. It is possible to download additional profiles from any computer connected to the iR C2100/2100S. 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 95/98, the default directory is \Windows\System\Color. For Windows NT 4.
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 iR C2100/2100S.
4 4-7 TO Profile Manager BACK UP PROFILES : 1. Launch ColorWise Pro Tools and click Profile Manager. 2. Select the profile on the iR C2100/2100S 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.
4 4-8 ColorWise Pro Tools Defining profiles For Windows NT 4.0, Windows 2000, and Mac OS computers, 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 the default profiles on page 4-2). There are 10 names available for custom profiles— Source-1 through 10 for RGB Source, Simulation-1 through 10 for Simulation, or Output-1 through 10 for Output.
4 4-9 3. Profile Manager 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.
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 TO Profile Manager CHANGE THE G LOBAL S ETTINGS : 1. Launch ColorWise Pro Tools and click Profile Manager. 2. Click Global Settings at the top right corner. Click Global Settings 3. Choose Full or Quick for the Default CMYK Simulation Method. See Chapter 1 for details on print options.
4 4-12 4. ColorWise Pro Tools Choose Simulation or Output for RGB Separation. See Chapter 1 for details on print options. Although the RGB Separation feature is primarily intended for RGB, it can also apply to data in the Lab color space or data that uses PostScript Color Management. 5. To see a diagram of how color settings affect print jobs, click the question mark (?) button at the bottom left. The diagram is illustrative and does not include selectable options. Click OK to close. 6.
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.
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 application’s 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). N OTE : The iR C2100/2100S allows you to use RGB or CMYK data when printing proofs for an offset press run.
5 5-3 Office applications Office applications The iR C2100/2100S must receive PostScript instructions to print an image or a document. Many applications do not create these PostScript instructions by themselves, and instead rely on the printer driver to create them. Included in this category are most word processors, spreadsheets, and presentation packages.
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 iR C2100/2100S user software. Print these files using different CRDs to see how the colors appear when printed to the iR C2100/2100S. For best results, print the color reference page using the same print options you plan to use for your final document.
5 5-5 PostScript applications Generally, PostScript applications send color information to the iR C2100/ 2100S as CMYK data. An exception to this is an RGB image placed in the document, which is sent directly to the iR C2100/2100S (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 iR C2100/2100S in those color spaces.
Working with Color in Applications Using the CMYK Color Reference The CMYK Color Reference included with your iR C2100/2100S user software lets you see how various cyan, magenta, yellow, and black combinations look when printed on your copier/printer.
5 5-7 PostScript applications 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 copier/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.
6 6-1 Chapter 6: Office Applications Working with office applications This chapter provides instructions for printing color documents from GDI and QuickDraw applications such as presentation, spreadsheet, and word processing software. You can use these instructions with the Microsoft Office 2000, Microsoft Office 97, and Microsoft Office 95 suite of applications.
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.
7 7-1 Chapter 7: Adobe Photoshop Photoshop 5.x This chapter covers features of Adobe Photoshop versions 4.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. 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 5.
7 7-2 Adobe Photoshop 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.
7 7-3 Photoshop 5.x Profile Setup From the Photoshop 5.x File menu, choose Color Settings>Profile Setup. In the Embed Profiles area, check 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.
7 7-4 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.
7 7-5 Photoshop 5.x CMYK Setup From the Photoshop 5.x File menu, choose Color Settings>CMYK Setup. Check this option Turn on 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.
7 7-6 Adobe Photoshop 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. You need to set up the Adobe Gamma profile to ensure that your monitor’s profile is already present (Mac OS only).
7 7-7 Photoshop 5.x 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. It is recommended that you use EPS or TIFF file formats to save RGB images that will be imported into other documents and printed to the iR C2100/ 2100S. You can import EPS and TIFF files into virtually all page layout applications.
7 7-8 Adobe Photoshop 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. Tips for advanced users Use the following information to implement alternate, more complex, color workflows with Photoshop.
7 7-9 Photoshop 5.x Selecting options when printing You can print RGB or CMYK images from Photoshop. • When you print an RGB image, you can choose whether the conversion to CMYK is performed by the iR C2100/2100S (using a CRD), by PostScript (using PostScript Color Management), or by Photoshop's builtin 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.
7 7-10 Adobe Photoshop Printing CMYK images Use the following instructions to print CMYK images. Choose an encoding method Choose CMYK Color as the color space 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 iR C2100/2100S. (With the AdobePS 8.7 printer driver for Mac OS, these options appear in the Adobe Photoshop pane of the Print dialog box.
7 7-11 Photoshop 5.x 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 7-12 Adobe Photoshop 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.
7 7-13 Photoshop 4.x It is recommended that you use the EPS or TIFF file formats to save RGB images that will be imported into other documents and printed to the iR C2100/2100S. 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.
7 7-14 Adobe Photoshop Selecting options when printing You can print RGB or CMYK images from Photoshop. • When you print RGB images, you can choose whether the conversion to CMYK data is performed by the iR C2100/2100S (using a CRD), by PostScript (using PS Color Management), or by Photoshop (using Photoshop’s separation settings). • When you print CMYK images, you can print composites or color separations.
7 7-15 Photoshop 4.x 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.
7 7-16 Adobe Photoshop Choose other print options (see Chapter 1). 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.
8 8-1 Chapter 8: Page Layout Applications Working with page layout applications This chapter provides instructions for printing color documents from Adobe PageMaker 6.5, QuarkXPress 4.02, and QuarkXPress 3.32. Before printing from these applications, make sure the appropriate printer driver and the iR C2100/2100S 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.
8 8-2 Page Layout Applications All RGB images placed in a document are affected by the RGB Source and Rendering Style settings. The iR C2100/2100S 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).
8 8-3 Adobe PageMaker 6.5 for Mac OS and Windows • 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 iR C2100/2100S. 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 iR C2100/2100S.
8 8-4 Page Layout Applications Selecting options when printing All print settings are specified from the various Print dialog boxes in PageMaker 6.5. The printer driver interface described in Chapter 1 is not used. Choose the iR C2100/2100S PPD Click Options In the Print Document dialog box, choose the iR C2100/2100S PPD from the PPD menu.
8 8-5 QuarkXPress 4.02 for Mac OS and Windows 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. When you click Print from any of the PageMaker 6.5 dialog boxes, the job is sent to the iR C2100/2100S. You do not see the printer driver dialog boxes described in Chapter 1.
8 8-6 Page Layout Applications Importing images With the exception of RGB images that are saved in EPS format or that use Quark’s PrintRGB XTension, QuarkXPress 4.02 converts all RGB data into CMYK, even when the 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 8-1 and “CMYK simulation” on page 8-2.
8 8-7 QuarkXPress 3.32 for Mac OS and Windows 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-iR C2100/2100S devices, you may want to consider using the color management features offered by QuarkXPress.
8 8-8 Page Layout Applications Selecting options when printing You must select the iR C2100/2100S PPD from the Printer Type menu in the Page Setup (Mac OS) or Printer Setup (Windows) dialog box.
9 9-1 Chapter 9: Illustration Applications Working with illustration applications This chapter provides instructions for using Adobe Illustrator for Windows and Mac OS, Macromedia 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 iR C2100/2100S PPD are installed on your computer as described in Getting Started.
9 9-2 Illustration Applications You can also choose named colors from the PANTONE color library. See “PANTONE Coated Color Reference” on page 5-6. Importing images In general, all images placed into illustration application documents should be in EPS format. All RGB images placed in a document are affected by the RGB Source and Rendering Style settings in the PPD.
9 9-3 Adobe Illustrator 8.x 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 iR C2100/ 2100S. For more information on downloading CMYK Simulation profiles to the iR C2100/2100S with ColorWise Pro Tools, see Chapter 4. Adobe Illustrator 8.
9 9-4 Illustration Applications Selecting options when printing For the Windows version of Illustrator, select the appropriate copier/printer from the Name pop-up menu and select PostScript Level 2 or 3. Windows Click Properties to set print options Select the copier/printer name Choose Composite Choose PostScript Level 2 or 3 For the Mac OS version of Illustrator, choose Composite output and PostScript Level 2.
9 9-5 Macromedia FreeHand 8.x for Windows and Mac OS If a document contains placed RGB images, click on the Properties button (Windows) or select Printer Specific Options from the pop-up menu (Mac OS) and choose RGB Source and Rendering Style settings for the iR C2100/2100S. With the exception of placed RGB images, these settings have no effect on colors printed with Illustrator 8.x. If the document contains named PANTONE named colors, choose the appropriate Spot Color Matching setting.
9 9-6 Illustration Applications You can control the conversion of RGB colors defined in FreeHand by specifying settings in the Preferences dialog box under the Colors category, or by clicking the Color Management button in the FreeHand pop-up menu on the Print dialog box. Click on Colors to access the color management settings Importing images A number of file types can be imported into FreeHand 8.x, but once imported, all are treated as either EPS images, TIFF images, or editable paths.
9 9-7 Macromedia FreeHand 8.x for Windows and Mac OS Selecting options when printing from FreeHand When printing, refer to the following illustrations to select options. Choose Normal Click to access FreeHand Print Setup Click to select a PPD PPD name shown here In the Print dialog box, make sure the Use PPD option is turned on. From the Print setting menu, choose Normal. • If the Use PPD option is on, a plus sign (+) appears in front of the word “Normal.
9 9-8 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. Refer to your FreeHand documentation for information about other FreeHand print options.
9 9-9 CorelDRAW for Windows and Mac OS N OTE : If you do not wish to use color management in CorelDraw, do not check 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.
9 9-10 Illustration Applications To use iR C2100/2100S color management, do not check this box If a document contains placed RGB images, choose RGB Source and Rendering Style settings for your copier/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.
A A-1 Appendix A: Desktop Color Primer Desktop Color Primer This appendix covers concepts that are basic to printing in color, including: • The 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, you can skip to the last section (“Optimizing files for processing and printing” on page A-9) for tips on optimizing files for printing.
A A-2 Desktop Color Primer 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.
A A-3 Desktop Color Primer Many computer applications include dialog boxes in which you choose colors by manipulating hue, saturation, and brightness. For example, Photoshop uses a square Color Picker (plate 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.
A A-4 Desktop Color Primer The subtractive primaries are cyan, magenta, and yellow; they absorb red, green, and blue light, respectively (plate 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.
A A-5 Desktop Color Primer 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.
A A-6 Desktop Color Primer Even if your color printing is done exclusively on the iR C2100/2100S, 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.
A A-7 Desktop Color Primer Color wheel A color wheel (plate 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.
A A-8 Desktop Color Primer 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.
A A-9 Desktop Color Primer 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.” Picture elements can have solid, gradient, or patterned color fills.
A A-10 Desktop Color Primer 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: 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.
A A-11 Desktop Color Primer 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 iR C2100/2100S.
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.
B B-2 Color Management Paper stock and toner The paper and toner used by your copier/printer can greatly affect printed color. For best results, use the supplies recommended by the manufacturer of the copier/printer. Maintenance Problems such as streaking and insufficient or excessive amounts of one or more toners arise when a copier/printer does not receive periodic maintenance or needs major repairs.
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 iR C2100/2100S is specially designed to perform gamut mapping at high speed with high quality results.
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 iR C2100/2100S 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.
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.
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.
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.
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.
G-2 Glossary color rendering dictionary continuous tone (contone) See CRD (color rendering dictionary). 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. color separation The process of separating a color image into the color components for printing—cyan, magenta, yellow, and black.
G-3 Glossary editing application to perform color separation and pass it through to final output with its integrity intact. density A measurement of the light-absorbing quality of a photographic or printed image. densitometer An instrument commonly used in the graphic arts industry to measure density according to a specified standard. desktop color separation See DCS. DIC A Japanese standard of specifications for separations, proofs, and color printing.
G-4 Glossary Graphics Interchange Format imagesetter See GIF. Raster-based film output device; a high-resolution laser output device that writes bitmapped data onto photosensitive paper or film. 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.
G-5 Glossary 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 copier/printer and a calibration target that defines the expected density response of the copier/printer.
G-6 Glossary raster image source color space Electronic representation of a page or image using a grid of points called pixels. The color environment of the originating source of an image, including scanners and color monitors. 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.
G-7 Glossary subtractive primaries white point 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. The color temperature of any white light source, typically expressed in degrees Kelvin (for example, 6500 K, typical for the white of a monitor).
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.
Index Numerics 8-pin DIN plug 3-6 A Absolute Colorimetric 1-5 accent color A-6 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 1-18 Apple Standard setting, RGB Source option 1-6 B bit depth, of raster images A-8, A-10 bitmaps A-5 see also raster images Black Overprint option 1-4, 1-10 black text 1-10 line art 1-9 brightness A-1, A-2 Brightness option 1-3 C calibration by
I-2 Index wheel A-7 working with 5-1 Color Charts 3-4 color management basics B-3 to B-4 ColorWise 1-1 to 1-12, 2-2 color management print options for Windows 95/98 1-14 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 1-1, A-2 color theory A-1 color wheel A-7 colorants A-3 Colorimetric ICC rendering style 1-5 ColorSync B-3 ColorWise B-3 key features xiv Co
I-3 Index H halftoning A-4, A-5 HSB color model 5-4, A-2 HSL color model 5-3, 5-4 HSV color model 5-3 hue, saturation, and brightness A-1, A-2 I ICC profiles assigning to RGB images 9-2 included with user software B-4 rendering styles 1-4 workflow 2-12 ICC standard for color management systems B-3 ICM profiles, applied to RGB images 9-2 illustration applications 9-1 Illustrator 5-4, 9-3 Image Color Matching, see ICM Image ICC rendering style 1-4 ink B-2 International Color Consortium, see ICC J JPEG 7-7
I-4 Index physics of color A-1 pixel-editing applications A-8, A-10 pixels in raster images A-8 PostScript and non-PostScript RGB data 1-6, 7-12 PostScript applications color handling 5-5 using color in 5-4 to 5-7 PostScript printer description file, see PPD PostScript Printer Driver Windows 95/98 1-13 Windows NT 4.
I-5 Index simulations, custom 1-7 Source 1–10 option 1-6 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 split complements A-7 Spot Color Matching option 1-4, 1-11, 5-7 spot colors 5-4, A-6 Status T C-1 subtractive color model A-3 subtractive primaries A-4 sunlight A-1 swatch color matching 5-5 T targets 3-3 Test Page calibration status 3-4 test prints B-2 text font size A-8 using color with A-7 TIFF images assigning ICC pro
