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Oki CX3641MFP Technical Reference

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  • Page 2 EFI Fiery Color Printing Technical Reference Part Number: 59308806, Rev. 1.0 15 March 2008...

  • Page 3: Table Of Contents

    ONTENTS ONTENTS ONTENTS NTRODUCTION Terminology and conventions About this document Key features of ColorWise OLOR OOLS About this chapter Setting up ColorWise Pro Tools on a Windows computer Installing ColorWise Pro Tools Installing the ICC profiles Configuring the connection Editing the configuration Setting up ColorWise Pro Tools on a Mac OS computer Installing ColorWise Pro Tools on a Mac OS computer Installing the ColorSync profiles...
  • Page 4 ONTENTS Calibrating with ColorWise Pro Tools Calibrator Starting Calibrator Expert mode Applying measurements to multiple calibration sets Restoring default calibration measurements Calibrating with ColorCal Calibrating with the DTP32 or DTP32 Series II Calibrating with the DTP41 Calibrating with the ED-100 Calibrating with the ES-1000 Calibrating from the copier/printer touch panel Calibrating with ColorCal...
  • Page 5 Substitute Color dialog box Principles for Substitute Colors Uploading and downloading a substitute color group OLOR RINT PTIONS About this chapter Managing color on the CX3641MFP ColorWise print options Auto Trapping Black Detection Black Overprint Black Text/Graphics CMYK Simulation Profile...
  • Page 6 ONTENTS MPORTING ENSITY EASUREMENTS Simple ASCII Import File Format Example of 1D Status T density for EFI 21 patch page Example of 1D Status T density for EFI 34 patch page Example of 1D Status T density for an arbitrary page NDEX...

  • Page 7: Introduction

    This document is part of a set of documentation that includes documentation for users and system administrators. For a complete description of your CX3641MFP, see the other documentation available at your site. Terminology and conventions This document uses the following terminology and conventions.

  • Page 8: About This Document

    • Installing and configuring ColorWise Pro Tools • Using Color Editor, Profile Manager, and Color Setup • Overview of calibration and description of how to calibrate the CX3641MFP using various ColorWise Pro Tools Calibrator methods • Using Spot-On to manage spot colors •...
  • Page 9 RGB file to CMYK first. ColorWise color management (ColorWise) offers an open color architecture, allowing users to customize the CX3641MFP to meet new printing needs as they arise. ColorWise supports profiles, which are industry standard color profiles that describe the color behavior of a device.

  • Page 10: Color Wise Pro Tools

    The ColorWise default settings provide high-quality out-of-box color from many Windows and Mac OS applications. This allows casual users to achieve quality output without knowing about or changing color settings on the CX3641MFP. The ColorWise color management system (CMS) also allows expert users to obtain the best color output.

  • Page 11: Setting Up Colorwise Pro Tools On A Windows Computer

    OLOR OOLS Platform To do this Windows and Mac OS Use Calibrator page 20 Use Color Editor page 20 Use Profile Manager page 25 Use Spot-On page 30 Use Color Setup page 30 Setting up ColorWise Pro Tools on a Windows computer The following sections describe how to install ColorWise Pro Tools and other files and configure the connection on a Windows computer.
  • Page 12 A 20-page, Letter-size PostScript file that PANTONE Book.ps: indicates the closest equivalent of PANTONE coated colors that the CX3641MFP can produce. The method used to print the PANTONE Book.ps file differs depending on the Spot Color Matching setting. For more information, see “Spot...

  • Page 13: Configuring The Connection

    For TCP/IP installations, you can use the Domain Name Server (DNS) name of the CX3641MFP instead of the IP address. Make sure the CX3641MFP is listed in a DNS used by your network. For more information, see the documentation that accompanies your Windows system.

  • Page 14: Editing The Configuration

    4 When you have typed all the information, click Add. 5 With the device name (3641A3) selected in the Devices list, click OK. The CX3641MFP appears in the list of Available Servers. The first line of the entry displays the nickname you assigned the CX3641MFP, followed by the protocol.
  • Page 15 OLOR OOLS O EDIT THE CONFIGURATION 1 To add a new CX3641MFP, click Add. Configure the Add New Server dialog box as outlined in steps through in the previous procedure. 2 To remove a CX3641MFP, select the CX3641MFP by its nickname and click Remove.

  • Page 16: Setting Up Colorwise Pro Tools On A Mac Os Computer

    OLOR OOLS Setting up ColorWise Pro Tools on a Mac OS computer The following sections describe how to install ColorWise Pro Tools and other files and configure the connection on a Mac OS computer. Installing ColorWise Pro Tools on a Mac OS computer You can install ColorWise Pro Tools from the User Software (Utilities) CD.

  • Page 17: Configuring The Connection

    A 20-page, Letter-size PostScript file that PANTONE Book.ps: indicates the closest equivalent of PANTONE coated colors that the CX3641MFP can produce. The method used to print the PANTONE Book.ps file differs depending on the Spot Color Matching setting. For more information, see “Spot Color...
  • Page 18 Domain Name Server (DNS) name of the CX3641MFP instead of the IP address. Make sure the CX3641MFP is listed in a DNS used by your network. For more information, see the documentation that accompanies your Macintosh system.

  • Page 19: Editing The Configuration

    IP address change. Change the specific CX3641MFP Setup information before you configure the connection. O EDIT THE CONFIGURATION 1 To add a new CX3641MFP, click Add. Configure the Add Server dialog box as outlined in steps through in the previous procedure.

  • Page 20: Using Colorwise Pro Tools

    CX3641MFP, manage spot colors, and set default values for ColorWise print options. Using Calibrator ColorWise Pro Tools Calibrator allows you to calibrate the CX3641MFP using one of a number of measurement methods. For information about calibrating the CX3641MFP, see...
  • Page 21 OLOR OOLS 2 Click Color Editor. Simulation lists the simulation profiles resident on the CX3641MFP. Output lists the output profiles resident on the CX3641MFP. 3 Select a profile and click Select. For more information about Color Editor, see ColorWise Pro Tools Help.
  • Page 22 OLOR OOLS Adjusting gray balance The AutoGray feature allows you to use the copier/printer’s built-in scanner as a measurement device for adjusting the gray balance of output profiles. Gray balance refers to the quality of neutral gray tones in a profile. In many cases, gray tones may contain a bluish or reddish color cast.
  • Page 23 OLOR OOLS 6 If the output profile contains no edit points, continue to step 8. If the output profile contains edit points from a previous AutoGray session, choose Refine or New. reuses edits points from a previous session in an attempt to make them more Refine accurate.
  • Page 24 OLOR OOLS 8 In the Print Options dialog box that appears, choose the Input Tray to use for the measurement page and click Print. The Page Type is automatically set to AutoGray Measurement Page. The Paper Size is automatically set to LTR/A4. 9 Retrieve the measurement page from the copier/printer.

  • Page 25: Using Profile Manager

    ColorWise Pro Tools Profile Manager allows you to manage and edit ICC profiles. O USE ROFILE ANAGER 1 Start ColorWise Pro Tools and connect to the CX3641MFP. 2 Click Profile Manager. The Profile Manager window appears. Output profiles 3 Click any profile to select it.
  • Page 26 The default RGB source and simulation profiles that you set are applied to all print jobs sent to the CX3641MFP, 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 27 CMYK Simulation Profile, and Output Profile. These settings apply to all jobs unless overridden for a particular job. • Use Expert Color Settings in the CX3641MFP printer drivers to select the settings for RGB Source Profile, CMYK Simulation Profile, and Output Profile when you print a job.
  • Page 28 OLOR OOLS 3 To add the Device Link Profile to the Device Link panel, select the Device Link Profile in the Description list and click the green arrow pointing to the Device Link panel. Device Link Panel The Device Link Profile Settings dialog box appears. To assign settings, see the following procedure.
  • Page 29 Click Information to find out more about the missing profile. If you install the source or output profile to the CX3641MFP that matches the missing profile referenced in the Device Link Profile, the “Unassigned” setting is automatically updated.

  • Page 30: Using Spot-On

    ColorWise Pro Tools Color Setup allows you to set the default values for the ColorWise print options and print settings for the CX3641MFP. These settings are applied to all print jobs sent to the CX3641MFP, unless a user overrides them for an individual job by changing settings in the printer driver. These default settings can also be overridden using Command WorkStation.
  • Page 31 The options in Color Setup are arranged in a pattern representing the flow of color processing that takes place on the CX3641MFP. To reset the CX3641MFP to its factory default settings, click Factory Default in the lower-left corner of the Color Setup window.
  • Page 32 OLOR OOLS O USE OLOR OLOR ETUP TO ENABLE EVICE ROFILES 1 Open Color Setup from ColorWise Pro Tools. 2 Select the RGB Source profile or the CMYK Simulation Profile and the Output Profile. When you select a source and output combination that is defined as a Device Link Profile, the Device Link Profile is automatically activated.

  • Page 33: Calibration

    ALIBRATION ALIBRATION Calibrating the CX3641MFP ensures consistent and reliable color output. Calibrate the CX3641MFP using ColorWise Pro Tools Calibrator with the copier/printer’s built-in scanner, a densitometer or a spectrophotometer. This document uses the following terminology for color measurement instruments: Term...

  • Page 34: Calibrating With Colorwise Pro Tools Calibrator

    Windows and Mac OS computers. Illustrations from a Windows computer are used in this chapter. Calibrating with ColorWise Pro Tools Calibrator ColorWise Pro Tools Calibrator allows you to calibrate the CX3641MFP using the measurement method of your choice. Changing calibration has the potential to affect all jobs for all users, so consider limiting the number of people authorized to perform calibration.
  • Page 35 O CALIBRATE THE USING ALIBRATOR 1 Start ColorWise Pro Tools and connect to the CX3641MFP. For information about configuring the connection to the CX3641MFP, see pages and 17. 2 Click Calibrator. 3 Choose a method from the Select Measurement Method menu.

  • Page 36: Expert Mode

    Comparison Page and save it as a PostScript or Encapsulated PostScript (EPS) file called CALIB.PS. Next, print the file to the Hold queue of the CX3641MFP from your application. You can also create a CALIB.PS file by renaming any job in the Hold queue using Command WorkStation (see Utilities).

  • Page 37: Applying Measurements To Multiple Calibration Sets

    Calibrator provides an option (Apply to All Calibration Sets) that allows you to copy the measurements from the calibration you are currently performing to all calibrations sets on the server. This option is only available if the CX3641MFP has more than one calibration set. It is selected by default.

  • Page 38: Calibrating With Colorcal

    To calibrate using ColorCal, you will need the Kodak Gray Scale strip included in the customer media pack that came with your CX3641MFP. You also need the Kodak Gray Scale strip and Kodak Color Control Patches strip to calibrate the scanner of the copier/printer for ColorCal.
  • Page 39 If you clear this option, only the ColorCal measurement page is printed, and the scanner calibration is skipped. We recommend that you always calibrate the scanner before calibrating the CX3641MFP. 8 Click Print. A message appears stating the status of your print job.
  • Page 40 ALIBRATION 13 Place the Kodak Gray Scale strip, Kodak Color Control Patches strip, and scanner measurement page in the correct positions on the copier/printer glass for scanner calibration. Place the Gray Scale strip face down on the copier/printer glass so that it is centered along the top edge of the scanner measurement page.

  • Page 41: Calibrating With The Dtp32 Or Dtp32 Series Ii

    CX3641MFP. Before you use ColorWise Pro Tools to calibrate the CX3641MFP, set up and calibrate the DTP32 or DTP32 Series II. For instructions, see the documentation that accompanies the instrument.
  • Page 42 ALIBRATION 4 Click Print in the Generate Measurement Page pane. The Print Options dialog box appears. 5 Choose the appropriate options and click Print. Choose 21 or 34 Sorted Patches. Page Type: Automatically set to LTR/A4 for 21 Sorted Patches. Choose 11 x 17/A3 or Paper Size: 12 x 18/SRA3 for 34 Sorted Patches.

  • Page 43: Calibrating With The Dtp41

    Using the DTP41 spectrophotometer, you can measure color patches generated by the CX3641MFP and automatically download the measurements to the Fiery. Before you use ColorWise Pro Tools to calibrate the CX3641MFP, set up and calibrate the DTP41. For instructions, see the documentation that accompanies the instrument.
  • Page 44 ALIBRATION 5 Choose the appropriate options and click Print. Choose 21 or 34 Sorted Patches. Page Type: Automatically set to LTR/A4 for 21 Sorted Patches. Choose 11 x 17/A3 or Paper Size: 12 x 18/SRA3 for 34 Sorted Patches. Choose the paper source for printing the measurement page. Input Tray: 6 Retrieve the measurement page from the copier/printer.
  • Page 45 ALIBRATION 10 Feed the measurement page into the DTP41, starting with the cyan strip. Align the page in the measurement page slot of the DTP41 so that the appropriate color column is centered below the alignment mark. Insert the page about three inches, past the front idler rollers, until it rests against the rear drive rollers and you feel resistance.

  • Page 46: Calibrating With The

    ALIBRATION 16 Click OK in the Information dialog box. This completes the CX3641MFP calibration process. Calibrating with the ED-100 You can use ColorWise Pro Tools in conjunction with the ED-100 to calibrate the CX3641MFP. You need to calibrate the copier/printer every time you use the ED-100.
  • Page 47 CX3641MFP. Multiple measurements are more accurate, but may take more time. To hear a confirmation tone each time a measurement is recorded, select the Audio Feedback option.
  • Page 48 11 When all the patches have been read successfully, click Accept. 12 Click Apply in the Calibrator dialog box. The new calibration measurement is implemented. 13 Click OK in the Information dialog box. This completes the CX3641MFP calibration process.

  • Page 49: Calibrating With The Es-1000

    Calibrating with the ES-1000 Use ColorWise Pro Tools in conjunction with the ES-1000 spectrophotometer to calibrate the CX3641MFP. Before you use ColorWise Pro Tools to calibrate the CX3641MFP, set up and calibrate the ES-1000. For instructions, see the documentation that accompanies the instrument.
  • Page 50 ALIBRATION 6 Retrieve the printed measurement page from the copier/printer. 7 Click Measure in the Get Measurements pane. The Measurement Options dialog box appears. Page Type is automatically set to the type that you selected in step 8 Check the settings and click Measure. The Information dialog box appears.

  • Page 51: Calibrating From The Copier/Printer Touch Panel

    This completes the CX3641MFP calibration process. Calibrating from the copier/printer touch panel You can also calibrate the CX3641MFP from the scanner panel using ColorCal or VisualCal, without using ColorWise Pro Tools Calibrator. Use ColorCal if your copier/ printer has a built-in scanner. Use VisualCal if it does not.

  • Page 52: Calibrating With Colorcal

    8 Choose Calibrate. 9 Select the Calibration Set. Choose from the list of all calibration sets on the CX3641MFP. This prompt appears only if more than one calibration set is available. 10 Choose Yes to print the measurement page.
  • Page 53 ALIBRATION 12 When prompted on the copier/printer touch panel, place the Kodak Gray Scale strip face-down on the copier/printer glass. Place the strip along the top edge of the copier/printer so that it is centered between the paper width marks on the copier/printer. Place grayscale strip face down Place color measurement...

  • Page 54: Calibrating With Visualcal

    1 At the Idle screen, press the Menu button to enter the Functions menu. 2 Choose Calibration, and choose Set Up Calibration. If a password is set on the CX3641MFP, enter it and press OK. 3 For Calibration Mode, select Standard or Expert.
  • Page 55 ALIBRATION 8 For Gradation Smoothing, choose Off, Fine, or Coarse. 9 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.

  • Page 56: Understanding Calibration

    • Each output profile contains a calibration target that describes the expected behavior of the copier/printer. After you calibrate the CX3641MFP, a calibration set is stored. This calibration set is used when it is associated with an output profile. Every output profile has an associated calibration set.
  • Page 57 CX3641MFP. When you calibrate the CX3641MFP, select the calibration set that corresponds to the typical printing jobs at your site. This same calibration set can be associated with one or more output profiles. For...

  • Page 58: Scheduling Calibration

    ALIBRATION Scheduling calibration Calibrate the CX3641MFP at least once a day, depending on the volume of print jobs. If it is very important to maintain consistent color, or your copier/printer is subject to wide fluctuations in temperature or humidity, calibrate every few hours. For optimal performance, calibrate whenever there is a noticeable change in print quality or printing results are not as expected.

  • Page 59: Spot -O N

    Spot-On allows you to maintain multiple Spot Color Dictionaries for each output profile on the CX3641MFP. Spot-On is an optional feature for the CX3641MFP. To use the Spot-On features with named colors, you must enable the Spot Color Matching print option. For more information about this option, see page Spot colors identified by names are printed with their defined CMYK values.

  • Page 60: Starting Spot-On

    Lab values using Output profile X and creates new CMYK values for use with Output profile Y. The CX3641MFP allows only one user to connect to Spot-On at a time. O START 1 Start ColorWise Pro Tools and connect to the CX3641MFP.

  • Page 61: Spot-On Main Window

    Spot-On main window The Spot-On main window list color groups that represent libraries of spot colors on the CX3641MFP. Tool icons for working with colors appear at the top of the window. Output profile Save Upload Download Copy Paste Close All...

  • Page 62: Working With Existing Colors

    For instance, if two colors from two different color groups have the same name, the CX3641MFP uses the color from the higher group and disregards the other color. By managing the priority of colors in this way, you can maintain several CMYK variants for the same spot color.

  • Page 63: Creating Custom Colors

    The Cut operation is available only for custom colors. 4 Click the location in the list where you want to paste the cut or copied selection, and then click the Paste icon in the toolbar. When you paste a default PANTONE color or group, a warning message appears asking you to rename the selection because of the multiple prefixes and suffixes for the PANTONE colors and groups.

  • Page 64: Downloading Custom Color Groups

    Default groups or colors (such as PANTONE) cannot be renamed. Downloading custom color groups You can download custom color groups from your computer to the CX3641MFP. Downloaded groups are added as custom groups to the Spot-On color list and are immediately enabled for use on the CX3641MFP.

  • Page 65: Uploading Custom Color Groups

    The upload feature allows you to share a group by creating a local copy that can be downloaded to another CX3641MFP. You must save a color group to the CX3641MFP before you can upload it to your computer. To upload a factory default group, copy and paste the group as a new custom group, and then upload the group as required.
  • Page 66 The Device Codes option allows you to enter color values between 0 and 255. This option reflects the full range of color values that the CX3641MFP can reproduce and provides finer gradations of color than are possible with Percentages.
  • Page 67 6 Click OK. The new color is displayed in the center of the Spot-On Color Search dialog box. 7 Click OK. The edited color appears in the color list of the Spot-On main window. Use the following procedure to target a color using the Spot-On Color Search dialog box. Beginning with an approximate color in the Spot-On Color Search dialog box, adjust the hue, saturation, and lightness of the color until you achieve an acceptable match.
  • Page 68 O TARGET A COLOR USING OLOR EARCH 1 Select the color that you want to edit. 2 Double-click the color icon. The Spot-On Color Search dialog box appears with the current color in the center. 3 To update the center patch to a neighboring color that more closely matches the target, click the corresponding neighbor patch.
  • Page 69 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 your monitor. To specify the monitor profile, choose Preferences from the Edit menu in the Spot-On main window.

  • Page 70: Using A Measurement Instrument To Target Colors

    9 Select the desired target color in the Spot-On Color Search dialog box and click OK. The edited color appears in the color list of the Spot-On main window. Using a measurement instrument to target colors If you have the Densitometer ED-100 or Spectrophotometer ES-1000, you can import measured color values directly into Spot-On.

  • Page 71: Reverting Default Colors To Factory Settings

    4 Click OK. Saving changes and exiting Spot-On To enable your spot color matches for use with the CX3641MFP, save your edits before you exit Spot-On. This ensures that all your changes to Spot-On color definitions are stored on the CX3641MFP and available for use when printing documents that contain spot colors.

  • Page 72: Spot-On With Substitute Colors

    O ADD A NEW SUBSTITUTE COLOR AND SPECIFY THE VALUE NAME FOR SUBSTITUTION 1 Start ColorWise Pro Tools and connect to the CX3641MFP. Start ColorWise Pro Tools from a stand-alone application or Command WorkStation, at your computer or at the monitor connected to the CX3641MFP.
  • Page 73 3 Select an output profile and click OK. The Spot-On main window appears. Output profile Save Upload Download Copy Paste Close all Print 10 Up 11 Down 4 Select the location in the group list where you want the addition to be placed. 5 Choose New Substitute Group from the Edit menu.

  • Page 74: Defining The Color Values For A Substitute Color

    To define a substitute color in the Spot-On Color Search dialog box, page O DEFINE A SUBSTITUTE COLOR IN THE N MAIN WINDOW 1 Start ColorWise Pro Tools and connect to the CX3641MFP. 2 Click Spot-On. The Select Output Profile dialog box appears. 3 Select an output profile and click OK.
  • Page 75 O DEFINE A SUBSTITUTE COLOR IN ENTER ATCH OLOR 1 Select the color that you want to substitute. 2 Double-click the color icon. The Spot-On Color Search dialog box appears with the selected color in the center. Center patch 3 Click the center patch. The Set Center Patch Color dialog box appears.

  • Page 76: Printing A Job With A Substitute Color

    O DEFINE A SUBSTITUTE COLOR USING OLOR EARCH 1 Select the color that you want to substitute. 2 Double-click the color icon. The Spot-On Color Search dialog box appears, displaying the current color in the center. Neighboring patch 3 Click neighboring patches until you find the color that you want to use for the substitution. For information about using Spot-On Color Search, see page 68.

  • Page 77: Substitute Color Dialog Box

    3 Click Copies & Pages and choose ColorWise from the menu. The ColorWise pane appears. screenshot 4 Select Substitute Colors. 5 Click Print. The job is printed with the substitute you defined in Spot-On. Substitute Color dialog box You can define the color mode and tolerance range for a substitute color in the Add Substitute Color or Rename Substitute Color dialog box.

  • Page 78: Principles For Substitute Colors

    To accommodate the “errors” that occur because of the rounding rules between the numbers entered by users and the numbers received by the CX3641MFP, the options of the small and large tolerance ranges are provided for color substitution.
  • Page 79 • CMYK (0-100%) – Small: A substitute color replaces any color that falls within the nearest +/- 0.25% of the color value entered. – Large: A substitute color replaces any color that falls within the nearest +/- 0.5% of the color value entered. •...
  • Page 80 Priority scheme If two substitute colors are defined with the same value-names, but with different sets of CMYK values and different tolerance ranges, Spot-On resolves the priority of substitution according to the order of color in the group. Spot-On process color substitution is based on the order of color in the group. The color entries at the top of the list have priority over the colors at the bottom of the list.

  • Page 81: Uploading And Downloading A Substitute Color Group

    • In Case 2, Substitute 4, green, is given higher priority because it is higher in the list. Substitute 3, red, can only substitute for occurrences of the original color, cyan, within the Small tolerance range, and those occurrences have already been substituted with green.

  • Page 82: Olor Ise Rint Ptions

    About this chapter This chapter provides an overview of the ColorWise management system, which controls color on the CX3641MFP (see page 83), and detailed explanations of each print option. For the location of each print option, see the following table.

  • Page 83: Managing Color On The Cx3641Mfp

    The following diagram illustrates the print options in the CX3641MFP color management process that affect color data conversions. You can access these print options when you send a print job to the CX3641MFP. Most of these options and settings are described in subsequent sections of this chapter.

  • Page 84: Colorwise Print Options

    OLOR RINT PTIONS With PostScript 3, a PostScript job can include calibrated CMYK (or CIEBasedDEFG) data. The Rendering Style print option, which normally affects only RGB data, affects calibrated CMYK data as well. The RGB Source Profile setting does not affect calibrated CMYK data. ColorWise print options The following sections provide detailed explanations of the ColorWise print options and how these options affect print jobs.

  • Page 85: Black Overprint

    OLOR RINT PTIONS Black Overprint The Black Overprint option allows you to specify whether or not black text or black text and graphics, defined as RGB=0, 0, 0, or as CMYK=0%, 0%, 0%, 100%, overprints colored backgrounds. • Black text overprints colored backgrounds, eliminating white gaps and reducing Text: the halo effect or misregistration of colors.

  • Page 86: Black Text/Graphics

    OLOR RINT PTIONS Black Text/Graphics The Black Text/Graphics option affects black text and vector graphics. Under most circumstances, set this option to Pure Black On. When Black Text/Graphics is set to Pure Black On, black colors generated by applications (for example, RGB=0, 0, 0 or CMYK=0%, 0%, 0%, 100%) are printed using black toner only.

  • Page 87: Cmyk Simulation Profile

    Graphics setting) 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 CX3641MFP. These elements are not affected by the Black Text/Graphics option. For more information, see Fiery Color Reference.

  • Page 88: Cmyk Simulation Method

    CMYK data was separated. • For images that were separated using a custom separation (such as a separation produced with an ICC profile), choose the corresponding profile on the CX3641MFP with the CMYK Simulation Profile setting. • For images that were separated for SWOP, choose SWOP as the CMYK Simulation Profile setting.

  • Page 89: Combine Separations

    OLOR RINT PTIONS • is a complete and accurate simulation method based on colorimetric Full (Output GCR) transformations. Hues are preserved, even for primary colors. With this method, the Gray Component Replacement (GCR) level that was specified in the original document is not preserved.

  • Page 90: Composite Overprint

    • Adobe InDesign • Macromedia FreeHand • QuarkXPress • CorelDRAW If Composite Overprint is enabled for a job that contains spot colors, Spot-On must be enabled on the CX3641MFP. A job with more than 32 spot colors may not print as expected.

  • Page 91: Output Profile

    Use the ColorWise Pro Tools Profile Manager to download your own output profile to the CX3641MFP (see “Using Profile Manager” on page 25). Downloaded output profiles are at first associated with the calibration target that is tied to the default output profile. You can edit calibration target D-Max values separately.

  • Page 92: Rendering Styles

    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, because the option defines the color spaces that are used by the CX3641MFP to “separate” the RGB data into CMYK values.

  • Page 93: Rgb Source Profile

    Commonly used monitor color spaces are available from the printer driver and the CX3641MFP. For others, use ColorWise Pro Tools Profile Manager to download custom monitor or scanner profiles. When you specify a setting other than None for the RGB Source Profile, the CX3641MFP overrides source color space definitions or profiles that other color management systems may have specified.

  • Page 94: Spot Color Matching

    The Spot Color Matching option provides automatic matching of spot colors with their best CMYK equivalents. • The CX3641MFP uses a built-in table to generate the closest CMYK matches of spot colors your copier/printer can produce. (New tables are generated when you add new output profiles.)

  • Page 95: Substitute Colors

    For a PDF job that includes spot colors that are not included in the built-in table, setting Spot Color Matching to On retains the original spot colors. The CX3641MFP references the built-in table to generate the closest CMYK matches of the original spot color.

  • Page 96: Printer Drivers And Print Options

    The printer driver writes a PostScript file containing the instructions generated by your application and the settings for the ColorWise print options you selected. The printer driver then sends the PostScript file to the CX3641MFP. The CX3641MFP performs PostScript processing and color conversions and sends raster color data to the copier/ printer.

  • Page 97: Setting Color Management Print Options For Mac Os

    The Expert Color Settings dialog box appears. screenshot This dialog box displays most of the ColorWise print options for the CX3641MFP. 6 Click Update to display the current CX3641MFP settings. If the Update button does not appear, make sure that Two-Way Communication is set up.
  • Page 98 OLOR RINT PTIONS OS X O SET PRINT OPTIONS FOR COMPUTERS 1 Choose Print in your application. The Print dialog box appears. 2 Choose ColorSync from the drop-down list. The ColorSync pane appears. 3 Choose In Printer from the Color Conversion menu. 4 Choose ColorWise from the drop-down list.

  • Page 99: Using Expert Color Settings To Enable Device Link Profiles

    10 Click Print. Using Expert Color Settings to enable Device Link Profiles When you print a job, you can enable Device Link Profiles by using the CX3641MFP printer driver if you have Two-Way Communication enabled. When you enable a Device Link Profile, you will be able to see the Device Link Profile in use in Expert Color.
  • Page 100 Printing from Windows Printing from Mac 2 From your application, select Print. 3 Select CX3641MFP as your printer and click Properties. 4 Click the Color icon. 5 Click Expert Settings. 6 Select the Source Profile and the Output Profile. When you select a Source Profile and Output Profile combination that is defined in a Device Link Profile, the Device Link Profile is automatically enabled.

  • Page 101: Importing Density Measurements

    MPORTING ENSITY EASUREMENTS MPORTING ENSITY EASUREMENTS This chapter describes Simple ASCII File Format (SAIFF), which you can use to import density measurements from measurement devices into ColorWise Pro Tools Calibrator. To use your own measurement data from an alternate measurement instrument, rather than make measurements directly in Calibrator, record your individual readings in a text file, structured as described in this chapter.

  • Page 102: Example Of 1D Status T Density For Efi 21 Patch Page

    MPORTING ENSITY EASUREMENTS Example of 1D Status T density for EFI 21 patch page This file format is used to specify the Status T density measurements of the EFI 21 patch page. The value in the first column is the patch number. The first patch must be 1 and the last must be 21.

  • Page 103: Example Of 1D Status T Density For An Arbitrary Page

    MPORTING ENSITY EASUREMENTS 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.
  • Page 104 NDEX NDEX CMYK Simulation Profile option 87, 88 color calibration 54 Absolute Colorimetric rendering style 92 Color Chart 58 Apple Standard setting, RGB Source Profile Color Editor 20 option 93 AutoGray 22 Auto Trapping option 84 color management system (CMS) 8 AutoGray 22 color profiles 10 color reference files...
  • Page 105 NDEX Device Link Profiles measurements page 57 about 26 monitor compensation assigning settings 28 Spot-On 69 enabling using Color Setup 31 enabling using Expert Color Settings 99 None setting, RGB Source Profile option 94 installing 27 device name 14, 19 DNS name 13, 18 output profile Domain Name Server 18...
  • Page 106 NDEX PostScript and non-PostScript Standard21.ps 12, 17 conversion 94 Standard34.ps 12, 17 RGB page 01 12, 17 Status T 101 RGB page 02 12, 17 Substitute Colors RGB Separation option 92 accuracy 78 RGB Source Profile option 83, 93 adding substitute colors 73, 77 CMYK (0-100%) mode 78 color substitution 79 SAIFF format 101...

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