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Xerox Phaser EX7750 Color Manual

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  • Page 2 Job Management Guide explains the functions of the job management utilities, and how you can use them to monitor and control jobs on the Xerox EX7750. This manual is intended for a user with the necessary access privileges who monitors and manages job flow and troubleshoots problems that may arise.
  • Page 3 Copyright © 2004 Electronics for Imaging, Inc. All rights reserved. This product documentation 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, Inc. (“EFI”), except as expressly permitted herein. Information in this document is subject to change without notice and does not represent a commitment on the part of EFI.
  • Page 4 FCC Information WARNING: FCC Regulations state that any unauthorized changes or modifications to this equipment not expressly approved by the manufacturer could void the user’s authority to operate this equipment. Refer to the Class Compliance sticker affixed to the back of your Fiery (or, in the case of embedded systems, to the sticker affixed to the print engine) to identify the appropriate classification (A or B, below) for this product.
  • Page 5 CE Marking (Declaration of Conformity) This product complies with the following EU directives: 89/336/EEC, 73/23/EEC, and 93/68/EEC directives. This declaration is valid for the area of the European Union. SOFTWARE LICENSE AGREEMENT PLEASE READ THIS SOFTWARE LICENSE AGREEMENT (“LICENSE AGREEMENT”) CAREFULLY. THIS LICENSE AGREEMENT IS A LEGAL AGREEMENT BETWEEN YOU AND ELECTRONICS FOR IMAGING, INC.
  • Page 6 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, EXCEPT FOR THE EXPRESS LIMITED WARRANTY SET FORTH ABOVE (“LIMITED WARRANTY”), EFI MAKES AND YOU RECEIVE NO REPRESENTATIONS OR WARRANTIES RELATING TO THE SOFTWARE, ANY PRODUCT AND/OR ANY SERVICES, WHETHER EXPRESS, IMPLIED, STATUTORY, OR IN ANY OTHER PROVISION OF THIS AGREEMENT OR ANY OTHER COMMUNICATION.
  • Page 7 U.S. Government Restricted Rights Use, duplication, or disclosure of the Software by the United States Government is subject to restrictions as set forth in FAR 12.212 or DFARS 227.7202-3 - 227.7202-4 and, to the extent required under U.S. federal law, the minimum restricted rights as set out in FAR 52.227-14, Restricted Rights Notice (June 1987) Alternate III(g)(3) (June 1987) or FAR 52.227-19 (June 1987).
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  • Page 9: Table Of Contents

    Contents About the Documentation Introduction About this manual xiii Key features of ColorWise Chapter 1: EX7750 Color Management Managing color on the EX7750 Rendering Style Pure Black Text/Graphics Black Overprint Spot Color Matching RGB Source Profile 1-11 CMYK Simulation Profile 1-12 CMYK Simulation Method 1-14...
  • Page 10 x Contents Using Calibrator Starting Calibrator Expert Mode Restoring default calibration measurements 2-10 Calibrating the EX7750 with the ES-1000 2-10 Calibrating the EX7750 with the DTP41 2-14 Calibrating the EX7750 with the DTP32 or DTP32HS 2-18 Calibrating from the Control Panel using VisualCal 2-20 Limits and 30% Match 2-20...
  • Page 11 xi Contents Appendix A: Color Measurement Instruments Using the EFI Spectrometer ES-1000 Setting up the ES-1000 Calibrating the ES-1000 Using the X-Rite DTP41 spectrophotometer Setting up the DTP41 Calibrating the DTP41 Using the X-Rite DTP32 densitometer Setting up the DTP32 A-10 Calibrating the DTP32 A-12...
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  • Page 13: About This Manual

    The other manuals are available at your site—see them for a complete description of your Xerox EX7750. The term “EX7750” is used in this manual to refer to the Xerox EX7750. The term “printer” is used to refer to the Phaser 7750. The name “Aero” is used in illustrations to represent the EX7750.

  • Page 14: Key Features Of Colorwise

    xiv Introduction • Appendix B describes the Simple ASCII File Format (SAIFF), which you can use to import toner density measurements from measurement devices. • The Fiery Color Reference Glossary defines words in bold—for example, output profile—that appear throughout this manual. Color terms and concepts such as “color space,”...
  • Page 15 xv Key features of ColorWise • Define the source of incoming RGB color data for better screen matching and provide for better color conversion of RGB data with no source information. • Define whether RGB data is converted into the full gamut of the printer or is first converted into the gamut of another device, such as a press standard.
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  • Page 17: Chapter 1: Ex7750 Color Management

    1-1 Managing color on the EX7750 The following sections describe the options available from the ColorWise color Chapter 1: management system and explain how to customize the color settings for your EX7750 Color particular needs. They provide descriptions of the preset ColorWise default settings Management and cover additional options for users who need to customize ColorWise.
  • Page 18 1-2 EX7750 Color Management control the printing of these mixed-color documents with features that apply specifically to RGB, CMYK, or spot color data. EX7750 color management generates CMYK data to be sent to the printer. The following diagram illustrates the print options in the EX7750 color management process that affect color data conversions.
  • Page 19 1-3 Managing color on the EX7750 You can specify settings for the following options by selecting print options when you send a job to the EX7750. Some can also be set as defaults by the administrator during EX7750 Setup or using ColorWise Pro Tools. Settings specified using print options override the defaults.
  • Page 20 1-4 EX7750 Color Management EX7750 color print option What it does RGB Source Profile Applies an RGB source space definition to RGB data (see page 1-11). If you EFIRGB/sRGB (PC) choose the Other setting, you must also specify particular settings for Gamma, /Apple Standard/Other/ Phosphors, and White Point.
  • Page 21 1-5 Managing color on the EX7750 EX7750 color print option What it does RGB Separation Determines which CMYK color space your original RGB data will be Output/Simulation separated into—CMYK for the printer (Output) or CMYK for a specified (Default set at Setup or with ColorWise Pro simulation (Simulation).

  • Page 22: Rendering Style

    1-6 EX7750 Color Management Rendering Style The Rendering Style option specifies a CRD for color conversions. To control the appearance of images, such as prints from office applications or RGB photographs from Photoshop, select the appropriate Rendering Style. The EX7750 allows you to select from the four rendering styles currently found in industry standard ICC profiles.

  • Page 23: Pure Black Text/Graphics

    1-7 Managing color on the EX7750 The rendering styles associated with the PCL driver do not match those associated with the PostScript driver. Pure Black Text/Graphics The Pure Black Text/Graphics option affects the printout for black text and vector graphics on a page.

  • Page 24: Black Overprint

    1-8 EX7750 Color Management PostScript applications (such as QuarkXPress) may convert elements defined as RGB = 0, 0, 0 to four-color CMYK black before sending the job to the EX7750. These elements are not affected by the Pure Black Text/Graphics option. For details, see the Fiery Color Reference.

  • Page 25: Spot Color Matching

    1-9 Managing color on the EX7750 One example of how you might use this setting is with a page that contains 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%. •...
  • Page 26 1-10 EX7750 Color Management For jobs that include spot colors, set Spot Color Matching to On unless you are printing press simulations. In that case, set Spot Color Matching to Off and choose the appropriate CMYK Simulation setting (see page 1-12).

  • Page 27: Rgb Source Profile

    1-11 Managing color on the EX7750 RGB Source Profile The RGB source profile setting allows you to define the characteristics of the RGB data in your document so the appropriate color conversion can occur on the EX7750. Commonly used monitor color spaces are available from the printer driver and from the ColorWise Pro Tools Profile Manager.

  • Page 28: Cmyk Simulation Profile

    1-12 EX7750 Color Management • specify the definitions you download as RGB source profiles. For more Sources 1-10 information about downloading RGB source profiles, see page 3-5. If you are printing with the PostScript driver from a Windows computer and have Two-Way Communication enabled, the name of each downloaded profile is represented in the RGB Source Profile setting menu.
  • Page 29 1-13 Managing color on the EX7750 If you are printing with the PostScript driver from a Windows computer and have Two-Way Communication enabled, the name of each downloaded or custom profile is represented in the CMYK Simulation Profile setting menu. If you are printing with the AdobePS driver from a Mac OS computer, downloaded or custom profiles appear as Simulation-1 through Simulation-10.

  • Page 30: Cmyk Simulation Method

    1-14 EX7750 Color Management CMYK Simulation Method The CMYK Simulation Method allows you to define your preferred CMYK-to-CMYK conversion technique. • applies one-dimensional transfer curves to adjust output densities in the cyan, Quick magenta, yellow, and black channels. This technique leads to pleasant color output from your printer because pure primary colors are not “contaminated”...

  • Page 31: Rgb Separation

    1-15 Managing color on the EX7750 RGB Separation The RGB Separation option determines how RGB colors (as well as Lab and XYZ colors) are converted to CMYK. The name of this option is meant to be descriptive, since the option defines the color spaces that will be used by the EX7750 to “separate” the RGB data into CMYK values.

  • Page 32: Image Smoothing

    1-16 EX7750 Color Management Image Smoothing The Image Smoothing option prevents low-resolution images from appearing “jaggy” or “blocky.” This option uses an image interpolation technique that averages the color of individual pixels based on their neighbors. The Image Smoothing option only affects images and supports all image file formats.

  • Page 33: Combine Separations

    1-17 PostScript printer driver for Windows and Mac OS Combine Separations The Combine Separations setting specifies how to print separated CMYK data. With Spot-On, you can combine an unlimited number of spot color separations along with the CMYK separations.The Combine Separations options are: •...

  • Page 34: Setting Color Management Print Options For Windows

    1-18 EX7750 Color Management The following illustrations and instructions do not apply to all applications. Many applications, such as Adobe PageMaker, Photoshop, Adobe Illustrator, QuarkXPress, and CorelDRAW, have other color management options in addition to those presented in the printer driver. For information about specific applications, see Fiery Color Reference.
  • Page 35 1-19 PostScript printer driver for Windows and Mac OS 3. Click Expert Settings. Click Expert Settings to access additional ColorWise options The Expert Color Settings flowchart appears. This window displays additional color settings for the EX7750. Each option includes a menu from which you select settings for your specific job.

  • Page 36: Adobe Postscript Printer Driver For Mac Os

    1-20 EX7750 Color Management Adobe PostScript printer driver for Mac OS This section explains how to set color management print options with the AdobePS printer driver for Mac OS, a PostScript 3 driver that takes full advantage of the color features of the EX7750 and allows you to save a set of print option settings.
  • Page 37 1-21 PostScript printer driver for Windows and Mac OS If you use the PostScript Color Matching option, the driver may, depending on the application in use, attach a CMYK source definition to the CMYK data in your document. In such a case, the CMYK data in the document is reseparated using a EX7750 CRD.
  • Page 38 1-22 EX7750 Color Management 2. Choose Color/Grayscale from the Print Color menu. Choose Color/Grayscale 3. In the Printer Specific Options menu, choose settings for the print options described page 1-3. If these settings are used regularly, click Save Settings to save them for subsequent jobs.
  • Page 39 1-23 PostScript printer driver for Windows and Mac OS EX7750 OS X 10.2 O SET COLOR MANAGEMENT OPTIONS FROM OR LATER 1. In the Print dialog box, choose Printer Features. Choose Printer Features from this menu 2. In the Printer Features area, choose settings for the print options described on page 1-3.
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  • Page 41: Chapter 2: Color Calibration

    2-1 Color Calibration Calibrating the EX7750 ensures consistent, reliable color output. This chapter explains Chapter 2: calibration works and provides instructions for all calibration procedures. Color Calibration This chapter describes calibrating the EX7750. You must also calibrate the Phaser 7750. For instructions, see the documentation that accompanies your printer. We recommend that you calibrate the Phaser 7750 first, and then the EX7750.

  • Page 42: An Overview Of Calibration

    2-2 Color Calibration For information about the advanced calibration and simulation features available with ColorWise Pro Tools, such as editing profiles and creating custom profiles, see Chapter 3. A format for inputting color measurements from other densitometers described in Appendix The procedures described in this chapter are fundamentally the same for Windows and Mac OS computers.

  • Page 43: Understanding Calibration

    2-3 Understanding calibration Understanding calibration Although the default calibration set meets most users’ needs, the EX7750 allows you to choose a calibration set to customize calibration for specialized jobs. Calibration allows you to: • Maximize the color reproduction capabilities of the EX7750. •...

  • Page 44: Scheduling Calibration

    2-4 Color Calibration Measurements Measurement files contain numerical values that correspond to the toner density produced by the printer when it prints solid cyan, magenta, yellow, and black, and graduated tints of those colors. To create a measurement file, print a page of color patches and then measure the patches using a color measurement instrument connected to a computer on the network.

  • Page 45: Checking Calibration Status

    2-5 Understanding calibration To monitor print quality, print the following color reference pages: • Color Charts from the Control Panel (see the Configuration Guide) • Color Charts from Command WorkStation/Command WorkStation LE (see the Job Management Guide) • Color reference pages included with the user software (see the User Software Installation Guide)

  • Page 46: Using Calibrator

    2-6 Color Calibration Using Calibrator ColorWise Pro Tools Calibrator allows you to calibrate the EX7750 using the measurement method of your choice. Changing the calibration has the potential to affect all jobs for all users, so consider limiting the number of people authorized to perform calibration. Set an Administrator password to control access to calibration (see the Configuration Guide).
  • Page 47 2-7 Using Calibrator 2. Click Calibrator. 3. Use the Calibrator window to perform the calibration method of your choice. Procedures for each calibration method are described in subsequent sections of this chapter.

  • Page 48: Expert Mode

    2-8 Color Calibration Expert Mode Calibrator provides two modes: Standard Mode and Expert Mode. You can perform all essential calibration tasks while in Standard Mode. Expert Mode offers two additional options: Print Pages and View Measurements. With the Print Pages option, print a calibration Comparison Page showing the results of the new measurements with any profile associated with the currently selected calibration set.
  • Page 49 2-9 Using Calibrator The View Measurements option allows you to view the current set of measurements as a table or graph that shows both the measurements and the target curves. When more than one profile uses the same target, an additional menu called Plot Against appears in the upper-right corner of the dialog box.

  • Page 50: Restoring Default Calibration Measurements

    2-10 Color Calibration Restoring default calibration measurements The EX7750 is shipped with default calibration measurements. You can use these measurements to achieve acceptable color without calibration, depending on the printer you use. If the measurement device you use does not produce acceptable color, you can easily return to the default measurements.
  • Page 51 2-11 Calibrating the EX7750 with the ES-1000 O CONFIGURE INDOWS TO GENERATE A VISUAL SIGNAL FOR A BEEP 1. Click Start. 2. Choose Control Panel. 3. Double-click the Accessibility Options icon. 4. Click the Sound tab. 5. Select Use SoundSentr, and set the visual warning to Flash Desktop. 6.
  • Page 52 2-12 Color Calibration 5. Choose the appropriate options and click Print. For Page Type, choose 21 or 34 Sorted Patches, or 21 or 34 Randomized Patches. Sorted patches are printed on the page in the order of their hue and saturation levels. Randomized patches are printed on the page in random order, to help compensate for density inconsistencies on different areas of the page.
  • Page 53 2-13 Calibrating the EX7750 with the ES-1000 8. Check the settings and click Measure. The Information dialog box appears. 9. Place the ES-1000 spectrometer in the calibration cradle. When you place the ES-1000 spectrometer in the calibration cradle, white point calibration is used to calibrate the spectrometer and to compensate for gradual drifts in the instrument.

  • Page 54: Calibrating The Ex7750 With The Dtp41

    2-14 Color Calibration 14. Press and hold the measure button and wait for a beep. To hear a beep with a Windows compatible computer, you must install a sound card and speaker(s). You might need to turn up the volume on your computer to hear the beep.
  • Page 55 2-15 Calibrating the EX7750 with the DTP41 EX7750 DTP41 O CALIBRATE THE USING THE 1. Start Calibrator. For instructions on starting Calibrator, see page 2-6. 2. Choose X-Rite DTP41 as the measurement method. 3. In the Check Print Settings pane, choose the desired calibration set. Choose the appropriate calibration set for the mode and type of media that you use most often.
  • Page 56 2-16 Color Calibration 7. Click Measure in the Get Measurements pane. The Measurement Options dialog box displays the specified Page Type and Paper Size options. 8. Click Measure. 9. If necessary, choose the appropriate COM port for the DTP41 from the Available Ports menu.
  • Page 57 2-17 Calibrating the EX7750 with the DTP41 11. Click Read Strip. The DTP41 pulls the measurement page through automatically. After the measurement page is read, Calibrator instructs you to insert and align the page again for the next color. 12. Repeat the measurement process for the magenta, yellow, and black strips. A check mark appears on the circle of the color just read, and the Status field indicates the color was measured successfully.

  • Page 58: Calibrating The Ex7750 With The Dtp32 Or Dtp32Hs

    2-18 Color Calibration Calibrating the EX7750 with the DTP32 or DTP32HS Using the DTP32 or DTP32HS, you can quickly measure color patches and download these measurements to the EX7750 using ColorWise Pro Tools Calibrator. Before using ColorWise Pro Tools and the DTP32 to calibrate the EX7750, follow the instructions on page A-12 for calibrating the DTP32 densitometer.
  • Page 59 2-19 Calibrating the EX7750 with the DTP32 or DTP32HS For Input Tray, specify the paper source. 6. Retrieve the measurement page from the printer. 7. Click Measure in the Get Measurements pane. The Measurement Options dialog box displays the specified Page Type and Paper Size options.

  • Page 60: Calibrating From The Control Panel Using Visualcal

    2-20 Color Calibration 9. When the Status field indicates that the measurements were read successfully, click Accept. 10. Click OK in the Measure dialog box. 11. Click Apply in the Calibrator window to implement the new calibration set. 12. Click OK in the Information dialog box. This completes the EX7750 calibration process.

  • Page 61: Gray Balance

    2-21 Calibrating from the Control Panel using VisualCal Gray Balance The second VisualCal page, “Gray Balance,” provides the basis for calculating a “neutral gray balance,” that is, a CMY gray that as closely as possible matches a pure K (blacK) gray produced by the printer’s engine. This page consists of rows of CMY gray patches on a field of gray produced solely from black.
  • Page 62 2-22 Color Calibration 7. Select Yes to print the Gray Balance page. To reset the printer’s gray balance, follow the instructions provided on the Gray Balance page. When you finish entering all values, the screen appears PRINT COLOR TEST (Expert Mode only). If the Gray Balance page is printed after the Limits calculations have been made, the gray field on which the CMY patches appear on the Limits page uses the new density and luminosity calibration settings.
  • Page 63 2-23 Calibrating from the Control Panel using VisualCal O REMOVE CALIBRATION FROM THE ONTROL ANEL 1. From the EX7750 Control Panel, access the Calibration menu as described on page 2-21. 2. Choose Remove Calibration. 3. Select the Media type. 4. When prompted, verify that you want to proceed with removing calibration. The current measurements are removed and a default calibration is restored.
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  • Page 65: Chapter 3: Colorwise Pro Tools

    3-1 ColorWise Pro Tools Designed to give you flexible control of color printing, ColorWise Pro Tools include Chapter 3: the following color management tools: ColorWise Pro Tools • Calibrator (see Chapter • Color Editor • Profile Manager • Spot-On • Color Setup ColorWise Pro Tools for Windows and Mac OS computers are fundamentally the same;...

  • Page 66: Profile Manager

    3-2 ColorWise Pro Tools Profile Manager Profile Manager allows you to manage and edit ICC profiles. In the case of the EX7750, these profiles are divided into RGB Source, Simulation, and Output profiles: • contains all monitor profiles resident on the EX7750. RGB Source RGB Source profiles are used to define the source color space for RGB colors processed by the EX7750.

  • Page 67: Setting Default Profiles

    3-3 Profile Manager Setting default profiles Use Profile Manager to set a default RGB source profile, simulation profile, and output profile. The default RGB source and simulation profiles that you set are applied to all print jobs sent to the EX7750, unless you override them using print options. The same is true of the default output profile that you set, unless you select the Use Media Defined Profile option.

  • Page 68: Using Media-Defined Output Profiles

    3-4 ColorWise Pro Tools default RGB Source and Output profiles looks like a target ( ). The icon indicating the default Simulation profile changes in appearance depending on whether the default RGB Separation setting is set to Simulation ( ) or Output ( 2.

  • Page 69: Downloading Profiles

    3-5 Profile Manager O USE MEDIA DEFINED OUTPUT PROFILES 1. Start ColorWise Pro Tools and click Profile Manager. 2. Select Use Media Defined Profile in the Output bar of Profile Manager. Changing the setting for the Use Media Defined Profile option in Profile Manager automatically changes the same setting in Color Setup.
  • Page 70 3-6 ColorWise Pro Tools 3. When the profile you want to download appears in the list in the main Profile Manager window, select it. If the profile is compatible with the EX7750, a green arrow indicates that the profile is available for downloading.

  • Page 71: Editing Profiles

    3-7 Profile Manager Editing profiles Customize the profiles on the EX7750 to meet your specific needs and the characteristics of your printer using Color Editor, either directly or through Profile Manager. For more information about editing profiles, see “Color Editor” page 3-11.

  • Page 72: Defining Profiles

    3-8 ColorWise Pro Tools EX7750 O DELETE PROFILES FROM THE 1. Start ColorWise Pro Tools and click Profile Manager. 2. Select the profile you want to delete and click Delete. A Warning dialog box asks you to confirm the deletion. You cannot delete preset profiles, profiles that are currently set as default, or profiles that are linked to any of the predefined custom names, for example Simulation-1.
  • Page 73 3-9 Profile Manager O DEFINE A CUSTOM SIMULATION PROFILE 1. Start ColorWise Pro Tools and click Profile Manager. Custom profile created with Color Editor For the purposes of this example, assume DIC-new is a custom simulation profile created with Color Editor and, as such, no information is displayed for DIC-new under the heading “Appear in Driver as.”...
  • Page 74 3-10 ColorWise Pro Tools Although you cannot delete a preset profile, you can use the name of a preset profile for your edited profile when you select the “Appear in Driver as” option. This replaces the preset profile with your own profile. In Profile Settings, you can also change profile descriptions for all non-locked profiles.

  • Page 75: Color Editor

    3-11 Color Editor If you do not define a custom simulation profile, your job prints with CMYK Simulation Profile set to None. If you do not define a custom RGB Source or Output profile, the default profile is used. Considerations for defining Output Profiles The procedure for defining Output Profiles is similar to the preceding example for defining Simulations profiles.
  • Page 76 3-12 ColorWise Pro Tools Color Editor also has several Edit Modes for editing simulations: • —Create a custom master simulation that affects all print jobs to which it is Master applied, unless a linked simulation exists for the selected combination of simulation profile, simulation method, and output profile.
  • Page 77 3-13 Color Editor 3. Choose a profile to edit and click Select. Another method is to open the Profile Manager, select a profile, and then click Edit. 4. For a simulation profile, choose Master from the Edit Mode menu. For an output profile, choose Custom from the Edit Mode menu.
  • Page 78 3-14 ColorWise Pro Tools 5. Select the colors that you want to edit by turning colors off and on. The Eye icon to the left of each color indicates whether that color is visible on the graph and will be affected by changes to the curves, brightness, and dot gain controls. You can view and edit all four colors (cyan, magenta, yellow, and black) at once, or in any combination.
  • Page 79 3-15 Color Editor If you use Dot Gain values, apply the settings first, so that the curves are deflected from their straight-line positions. Then make edits to the new curves. When you adjust Dot Gain values, all existing points on the curve are removed. A warning dialog box allows you to cancel Dot Gain settings before they are applied.
  • Page 80 3-16 ColorWise Pro Tools Adjust points in this way only after you have entered the Dot Gain and Brightness values. For greater precision, type percentages in the Input and Output fields or use the arrow keys on the keyboard to adjust the curve. To use the arrow keys, you must first click the curve to establish an anchor point that serves as a reference.
  • Page 81 3-17 Color Editor GCR), O EDIT A SIMULATION IN UICK OURCE GCR) UTPUT MODE 1. Start ColorWise Pro Tools and click Color Editor. 2. Choose Simulation from the View menu, select the simulation profile to edit, and then click Select. Another method is to open the Profile Manager, select a simulation profile, and click Edit.

  • Page 82: Undoing Cmyk Simulation Edits

    3-18 ColorWise Pro Tools 4. Edit and save the simulation, as described in steps through of the procedure starting on page 3-14. For this new simulation to be automatically applied to a print job, the CMYK Simulation, Simulation Method, and Output Profile settings must be the same as those used when you edited the profile.

  • Page 83: Using Spot-On

    3-19 Using Spot-On O CHECK A PROFILE 1. Click Test Print at the bottom of the Color Editor window. Output profile names appear here 2. Select a page to print. If you selected Comparison Page, choose a paper size. If you selected Sample Image Page, choose an output profile. Then click Print Using Spot-On The ColorWise Spot Color Matching option automatically matches spot colors with their best CMYK equivalents so that spot colors can be simulated using the CMYK...

  • Page 84: Starting Spot-On

    3-20 ColorWise Pro Tools Starting Spot-On You can start Spot-On from ColorWise Pro Tools. To use Spot-On, you must first specify the output profile associated with the Spot Color Dictionary that you want to edit. However, you may switch to a different output profile at any time while working with Spot-On.

  • Page 85: Using The Spot-On Main Window

    3-21 Using Spot-On Using the Spot-On main window The Spot-On main window displays a list of color groups that represent libraries of spot colors on the EX7750. Tool icons for working with colors appear at the top of the window. Copy Download Paste...
  • Page 86 3-22 ColorWise Pro Tools O OPEN AND CLOSE A COLOR GROUP 1. To open a color group, click the icon to the left of the group name. You can also open a group by double-clicking the blank area to the right of the group name.

  • Page 87: Working With Existing Colors

    3-23 Using Spot-On Working with existing colors With Spot-On, you can view and manage existing groups of colors on the EX7750. You can also search for a particular color in the Spot-On list. Color groups in the Spot-On window appear in order of their priority. Highest priority is given to color groups at the top of the list.

  • Page 88: Creating Custom Colors

    3-24 ColorWise Pro Tools O FIND A SPECIFIC COLOR 1. Choose Find from the Edit menu. The Find dialog box appears. 2. Enter the name of the color you want to find and click OK. Spot-On searches for the specified color, starting from the top of the color list. The located color appears selected in the color list.
  • Page 89 3-25 Using Spot-On O RENAME A CUSTOM COLOR OR COLOR GROUP 1. Select the Color Name or specific color you want to edit. 2. Type the new name exactly as it appears in the print job documents, including uppercase and lowercase characters and spaces, as necessary. Default groups or colors, such as PANTONE, cannot be renamed.

  • Page 90: Downloading Custom Color Groups

    3-26 ColorWise Pro Tools Downloading custom color groups You can download custom color groups from your computer to the EX7750. Downloaded groups are added as custom groups to the Spot-On color list and are enabled immediately for use on the EX7750. O DOWNLOAD CUSTOM COLOR GROUPS 1.

  • Page 91: Uploading Custom Color Groups

    3-27 Using Spot-On Uploading custom color groups Upload custom color groups from the EX7750 to your computer as ICC files. The upload feature allows you to share a group by creating a local copy that can be downloaded to another EX7750. Before you can upload a color group to your computer, it must be saved to the EX7750.

  • Page 92: Editing Color Values

    3-28 ColorWise Pro Tools Editing color values The Spot-On Color Search targets the exact CMYK toner equivalents required to simulate a desired spot color on the printer. If an existing spot color is not printing as desired, you can modify the color values as needed to achieve your intended result. Beginning with an approximate color, you can adjust the hue, saturation, and lightness of the color until you achieve a desirable match.
  • Page 93 3-29 Using Spot-On 2. To update the center patch to a neighboring color that more closely matches the target, click the corresponding neighbor patch. Neighboring patches represent variations from the center patch and can be selected if they offer a closer match to the desired color. Clicking one of these patches updates the center patch to the new color and provides a new selection of neighboring colors.
  • Page 94 3-30 ColorWise Pro Tools Select Monitor Compensation to simulate how all the on-screen color patches will appear when printed on paper. This simulation depends on the monitor profile that has been configured for the display. To specify the monitor profile, choose Preferences from the Edit menu in the Spot-On main menu.
  • Page 95 3-31 Using Spot-On 6. Click OK to print the patches. The Print Pattern test page prints the following information: • Center patch color CMYK value • Color spacing • Lightness or Saturation neighbors selected • Output profile selected The goal of the Spot-On Color Search is to find the color values that make a printed color patch match a target, not the screen simulation of it.
  • Page 96 3-32 ColorWise Pro Tools CMYK O TARGET A COLOR USING EXACT VALUES 1. Click the center patch in the Spot-On Color Search window. The Set Center Patch Color dialog box appears. 2. Select how you want to enter the CMYK values. The Percentages option allows you to enter color values between 0 and 100%, in increments of 0.5.

  • Page 97: Using A Measurement Instrument To Target Colors

    3-33 Using Spot-On Using a measurement instrument to target colors If you use the EFI Spectrometer ES-1000, you can import measured color values directly into Spot-On. This feature allows you to target matches based on the actual colors of immediate objects, such as the red of a printed logo or the yellow of a packaging envelope.

  • Page 98: Saving Changes And Exiting Spot-On

    3-34 ColorWise Pro Tools 4. Place the ES-1000 over the target color, making sure to center the sample aperture over the color. Press Measure to take the measurement. The measured CMYK values are imported into Spot-On as follows: • If an individual color is selected in the color list, it updates to the measured color. •...

  • Page 99: Color Setup

    3-35 Color Setup Color Setup Use Color Setup to set the default ColorWise settings for the EX7750. To access Color Setup, click its icon in the ColorWise Pro Tools main window. Setting default ColorWise options Color Setup allows you to configure the default color management settings for the EX7750.
  • Page 100 3-36 ColorWise Pro Tools For those color options that offer multiple choices, make your selection from the menu that appears. For RGB Separation, use the radio button next to the option name. For other options, use the check box next to the option name. Once you make your changes, you must click OK or Apply for the changes to take effect.

  • Page 101: Appendix A: Color Measurement Instruments

    A-1 Color Measurement Instruments This appendix explains how to set up and calibrate the following color measurement Appendix A: instruments: Color Measurement • EFI Spectrometer ES-1000 hand-held spectrometer Instruments • X-Rite DTP41 automatic scanning spectrophotometer • X-Rite DTP32 automatic scanning densitometer Using the EFI Spectrometer ES-1000 The EFI Spectrometer ES-1000 is a hand-held spectrophotometer...

  • Page 102: Calibrating The Es-1000

    A-2 Color Measurement Instruments The following illustration shows the different parts of the ES-1000. Measure button Sample aperture White tile reference Calibration cradle Calibrating the ES-1000 When you place the ES-1000 in the calibration cradle, white point calibration is used to calibrate the spectrometer.
  • Page 103 A-3 Color Measurement Instruments DTP41 O CONNECT THE TO THE COMPUTER 1. Turn off the computer. 2. Unpack the X-Rite DTP41 and remove the spacer from the measurement page slot. 3. Plug the square end of the interface cable (looks like a modular phone plug) into the serial interface connection on the side of the X-Rite DTP41.
  • Page 104 A-4 Color Measurement Instruments 4. 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.
  • Page 105 A-5 Color Measurement Instruments For Mac OS computers with a USB port (for example, an iMac), you need an adapter to connect the DTP41 to your computer. For information about supported adapters, see the X-Rite, Inc. web site (www.x-rite.com). 5. Use the AC adapter to provide power. Plug the small connector on the adapter cable into the power input of the X-Rite DTP41 and plug the AC adapter into the power cord.

  • Page 106: Calibrating The Dtp41

    A-6 Color Measurement Instruments Calibrating the DTP41 For the best color accuracy, calibrate the X-Rite DTP41 spectrophotometer every time you calibrate the EX7750. You can initiate the calibration sequence in ColorWise Pro Tools Calibrator as part of the process of EX7750 calibration. The computer may also prompt you that it is necessary to calibrate the spectrophotometer.
  • Page 107 A-7 Color Measurement Instruments 4. In the Get Measurements pane, click Measure. 5. In the Measurement Options dialog box, click Measure. 6. Choose the appropriate COM port for the DTP41 from the Available Ports menu. The Instructions area displays instructions for selecting the port.
  • Page 108 A-8 Color Measurement Instruments 7. Click Utilities. The Utilities dialog box appears. To view version and serial number information, click Show DTP-41 Info, and then click Done when you are finished. 8. Click Calibrate DTP-41. The Instrument Calibration dialog box appears.

  • Page 109: Using The X-Rite Dtp32 Densitometer

    A-9 Color Measurement Instruments 9. If you have not already done so, remove the shipping spacer from the measurement page slot. 10. Insert the end of the Color Reflection Reference strip into the calibration strip entrance on the DTP41. Center the arrow on the strip below the alignment mark (see the diagram on page A-3), and slide the strip into the DTP41 until you feel the...

  • Page 110: Setting Up The Dtp32

    A-10 Color Measurement Instruments Setting up the DTP32 Before you calibrate the EX7750 using the X-Rite DTP32, you need to connect, configure, and calibrate the densitometer to prepare for measuring the printed patches (see “Calibrating the DTP32” on page A-12). For additional information about setting up and using the DTP32, see the documentation that accompanies the densitometer.
  • Page 111 A-11 Color Measurement Instruments For a Mac OS computer, connect the 8-pin mini-DIN plug directly into the serial port of the computer. Unused connector Connect to serial port For Mac OS computers with a USB port (for example, an iMac), you need an adapter to connect the DTP32 to your computer.

  • Page 112: Calibrating The Dtp32

    A-12 Color Measurement Instruments Calibrating the DTP32 You will need the black-and-white X-Rite Auto-Cal Strip included with the densitometer. Calibrating the densitometer does not require ColorWise Pro Tools. DTP32 O CALIBRATE THE 1. Connect the densitometer to the computer and supply power (see page A-10).

  • Page 113: Appendix B: Importing Density Measurements

    B-1 Importing Density Measurements This appendix describes Simple ASCII File Format, which can be used to import Appendix B: density measurements from measurement devices. To use your own measurement data Importing from an alternate measurement instrument, record your individual readings in a text Density file and structure it as follows.

  • Page 114: Example Of 1D Status T Density For Efi 34 Patch Page

    B-2 Importing Density 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.

  • Page 115: Example Of 1D Status T Density For An Arbitrary Page

    B-3 Importing Density 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.
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  • Page 117 Index Index CMYK Simulation Method option 1-4, 1-14 Absolute Colorimetric rendering style 1-6 CMYK Simulation Profile option 1-4, 1-12 Apple Standard setting, RGB Source Profile color calibration 2-20 option 1-11, 3-2 Color Charts 2-5 Color Editor Black Detection option 1-5 dot gain adjustment 3-14 Black Overprint option 1-8 Edit Modes 3-12...
  • Page 118 I-2 Index default color controls set in Setup 1-3 ICC profiles densitometer backing up 3-7 DTP32 2-18 to 2-20, A-9 to A-12 defined xv density values defining 3-9 about 2-3, 2-5 deleting 3-8 importing B-1 to B-3 descriptions 3-2 DIC, CMYK Simulation option 3-2 downloading 3-5 dot gain values, adjusting 3-14 editing 3-11 to 3-19...
  • Page 119 I-3 Index PostScript Color Management 1-20 PostScript Color Matching option 1-20 SAIFF format B-1 to B-3 PPD 1-18, 1-20 Saturation ICC rendering style 1-6 Presentation rendering style 1-6 Screen Switching option 1-5 Print Mode option 1-3 separations print options printing 1-5, 1-7, 1-10, 1-17 ColorWise 1-3 to 1-10 target color space 1-5, 1-15 Mac OS 1-20 to 1-22...
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