Toshiba manual Pure Black Text/Graphics, 11-8 GA-1121 Color Management, Off

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11-8

GA-1121 Color Management

NOTE: 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. Under most circumstances, leave this option set to On. When Pure Black Text/Graphics is on, black colors generated by applications (for example, RGB = 0, 0, 0; CMYK = 0%, 0%, 0%, 100%; or K = 100%) are printed using the maximum amount of black toner allowed by the calibration curve. This means the black text and line art will not exhibit halftone artifacts (as long as the copier/printer is calibrated correctly) and will not be misregistered, since there is only one toner used. In addition, this setting eliminates blasting.

For some jobs, it is preferable to clear this option, for example, if the page includes gradient fills that use black. The following table describes the behavior of the Pure Black Text/Graphics option with black data defined in different color spaces.

NOTE: Use the Pure Black Text/Graphics option only when printing composites, not when printing separations.

Input

 

Pure Black Text/Graphics

 

 

black color

On

Off

 

 

 

 

RGB

Prints 100% black

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.

 

 

 

Spot

 

Prints only with black toner, because spot color

 

 

simulations preserve the black channel. The actual

 

 

amount of toner used depends on the current

 

 

simulation and the calibration state of the

 

 

copier/printer.

 

 

 

NOTE: 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 GA-1121. These elements are not affected by the Pure Black Text/Graphics option. For details,

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Contents Toshiba GA-1121 About the Documentation Part Number Avis de Conformation Classe a de l’Industrie Canada Software License Agreement Limitation of Liability Contents Using the EFI Densitometer ED-100 Viii Contents Using CalibratorUsing the EFI Spectrometer ES-1000 Using Spot -OnUsing the X-Rite DTP41 spectrophotometer ContentsColor Setup Using the X-Rite DTP32 densitometerPage About this manual IntroductionAbout this manual Key features of ColorWise Xii IntroductionXiii Key features of ColorWise Page Managing color on the GA-1121 Chapter GA-1121 Color Management11-1 Managing color on the GA-1121 11-2 GA-1121 Color Management RGB data Cmyk data Spot color data11-3 Managing color on the GA-1121 GA-1121 color print option What it doesAutomatic/Off/On/Below 90-300 ppi Output profile is applied to all data in the print job see EFIRGB/sRGB PC Rendering Style 11-7 Managing color on the GA-1121Input Pure Black Text/Graphics Pure Black Text/Graphics11-8 GA-1121 Color Management OffBlack Overprint 11-9 Managing color on the GA-1121Spot Color Matching 11-10 GA-1121 Color ManagementRGB Source Profile Cmyk Simulation Profile 11-12 GA-1121 Color ManagementCmyk Simulation Method 11-13 Managing color on the GA-1121RGB Separation 11-14 GA-1121 Color ManagementCombine Separations Output profile11-15 Managing color on the GA-1121 Toner Reduction PostScript printer driver for Windows and Mac OS11-16 GA-1121 Color Management Click Update to display the current GA-1121 settings Setting color management print options for Windows11-17 PostScript printer driver for Windows and Mac OS Adobe PostScript printer driver for Mac OS 11-18 GA-1121 Color ManagementSetting color management print options 11-19 PostScript printer driver for Windows and Mac OS11-20 GA-1121 Color Management Choose Color/Grayscale from the Print Color menuPage Print dialog box, choose Printer Features from the menu 11-22 GA-1121 Color ManagementChapter 22-1 An overview of calibrationUnderstanding calibration An overview of calibration22-2 Color Calibration How calibration works 22-3 Understanding calibrationScheduling calibration 22-4 Color Calibration22-5 Using Calibrator Using CalibratorChecking calibration status Start ColorWise Pro Tools and connect to the GA-1121 Starting Calibrator22-6 Color Calibration Click CalibratorExpert Mode 22-7 Using Calibrator22-8 Color Calibration Restoring default calibration measurements 22-9 Using CalibratorUsing the EFI Spectrometer ES-1000 Setting up the ES-1000Start Calibrator 22-11 Using the EFI Spectrometer ES-1000Calibrating the GA-1121 with the ES-1000 Generate Measurement Page pane, click PrintCheck the settings, and click Measure 22-13 Using the EFI Spectrometer ES-1000 Place the ES-1000 in the calibration cradle, and click OKUsing the EFI Densitometer ED-100 Setting up the ED-10022-15 Using the EFI Densitometer ED-100 Calibrating the GA-1121 with the ED-100Choose the appropriate options, and then click Start 22-17 Using the EFI Densitometer ED-100 22-18 Color Calibration Repeat to measure each successive patch on the Measurement22-19 Calibrating the GA-1121 with the DTP41 Calibrating the GA-1121 with the DTP41Choose the appropriate options, and click Print 22-20 Color Calibration Click Read Strip Calibrating the GA-1121 with the DTP32 22-22 Color CalibrationClick Measure Using AutoCal and ColorCal 22-25 Using AutoCal and ColorCal 22-26 Color Calibration Calibrating from the Control Panel with AutoCal or ColorCal When prompted, choose Yes to print the measurement With Expert Mode, you can print a Comparison Page seeOn the Control Panel, press Set To Remove Calibration from the Control Panel Chapter ColorWise Pro Tools 33-1Profile Manager 33-2 ColorWise Pro Tools33-3 Profile Manager Setting the default profilesStart ColorWise Pro Tools and click Profile Manager Repeat steps 2 through 4 for each type of profile Downloading profiles33-4 ColorWise Pro Tools Start ColorWise Pro Tools and click the Profile Manager33-5 Profile Manager Managing profiles Editing profiles33-6 ColorWise Pro Tools Defining profiles To Define a Custom Simulation Profile 33-9 Profile Manager Color Editor 33-10 ColorWise Pro Tools33-11 Color Editor Page Page Use the plus and minus buttons to adjust brightness 33-14 ColorWise Pro Tools33-15 Color Editor ColorWise Pro Tools Undoing Cmyk simulation edits Checking edited profiles33-18 ColorWise Pro Tools Using Spot-OnStarting Spot-On Click Test Print from the Color Editor windowUsing the Spot-On main window 33-19 Using Spot-On33-20 ColorWise Pro Tools 33-21 Using Spot-On Working with existing colorsChoose Find from the Edit menu Enter the name of the color you want to find and click OKCreating custom colors New color group entry or color entry appears as Untitled33-24 ColorWise Pro Tools Downloading custom color groupsUploading custom color groups Locate and select the desired color group, and click Open33-25 Using Spot-On Editing color values33-26 ColorWise Pro Tools 33-27 Using Spot-On Click the center patch in the Spot-On Color Search window ColorWise Pro Tools Click OK to print the patchesSelect how you want to enter the Cmyk values 33-29 Using Spot-On Using a measurement instrument to target colorsChoose Start from the Instrument menu Saving changes and exiting Spot-On Setting default ColorWise options Color Setup33-31 Color Setup 33-32 ColorWise Pro Tools Appendix a Color Measurement Instruments Using the X-Rite DTP41 spectrophotometerSetting up the DTP41 AA-1 Color Measurement InstrumentsLED indicator Unused connector Connect to serial port Calibrating the DTP41 AA-5 Color Measurement Instruments Click Utilities AA-6 Color Measurement InstrumentsClick Calibrate DTP-41 Click Done Close the Utilities window Setting up the DTP32 Using the X-Rite DTP32 densitometerAA-8 Color Measurement Instruments Interface cable Calibrating the DTP32 AA-11 Color Measurement Instruments Page Simple Ascii Import File Format Saiff Appendix BBB-1 Importing density measurements Example of 1D Status T density for EFI 21 patch Example of 1D Status T density for EFI 34 patchBB-2 Importing density measurements Example of 1D Status T density for an arbitrary BB-3 Importing density measurementsPage Index Index DTP41DTP41 2-19 to 2-22, A-1 to A-7 Index