Xerox Fiery color server User Manual Download Page 42 | Manualshive

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Working with Color in Applications

Choosing colors in PostScript applications

With PostScript applications, you can create colors using any of the color models
supported by the application. All PostScript applications support CMYK; some also
support RGB and other color models based on monitor display values. PostScript
applications also allow you to choose named colors using one or more color libraries,
such as PANTONE (see

Use swatch color matching to ensure predictable color printing results with
the Color Server or to match your Color Server output to colors produced by
other printers.

Swatch color matching

Your Color Server user software includes several color reference pages (see

).

By choosing colors from these reference pages, you ensure that you get the same color
from your device. For best results, calibrate the Color Server before printing the
reference pages.

N

OTE

:

Swatch color matching does not match

monitor

colors to printed colors.

For this, you must use a color management system and calibrate your monitor.

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Summary of Contents for Fiery color server

Page 1: ...Color Server FIERY COLOR REFERENCE ...

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Page 3: ...Chips Splash Velocity Velocity Balance Velocity Build Velocity Design Velocity Estimate Velocity Scan and VisualCal are trademarks of Electronics For Imaging Inc All other terms and product names may be trademarks or registered trademarks of their respective owners and are hereby acknowledged Legal Notices APPLE COMPUTER INC APPLE MAKES NO WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION...

Page 4: ... your rights under this Agreement to another person or legal entity provided that 1 you transfer to the person or entity all of the Software and Documentation including all copies updates upgrades prior versions component parts the media and printed materials and this Agreement 2 you retain no copies of the Software and Documentation including copies stored on a computer and 3 the recipient agrees...

Page 5: ...THER SPECIAL INCIDENTAL CONSEQUENTIAL OR INDIRECT DAMAGES ARISING FROM THE SALE INSTALLATION MAINTENANCE USE PERFORMANCE OR FAILURE OF THE SOFTWARE HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY THIS LIMITATION WILL APPLY EVEN IF EFI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE YOU ACKNOWLEDGE THAT THE PRICE OF THE PRODUCT REFLECTS THIS ALLOCATION OF RISK BECAUSE SOME JURISDICTIONS DO NOT ALL...

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Page 7: ...2 Desktop versus ColorWise color management 1 2 Simple workflows 1 3 Select your colors wisely 1 4 Select a short workflow 1 4 Advanced workflows 1 8 Short run printing examples 1 8 Color proofing examples 1 14 Chapter 2 Working with Color in Applications Working with color 2 1 Color reference pages 2 2 Office applications 2 3 Choosing colors in office applications 2 4 PostScript applications 2 5 ...

Page 8: ...5 x color settings 4 5 Saving files 4 9 Saving files from Photoshop 6 x or 5 x 4 9 Advanced tips for using PostScript color management 4 12 Defining colors 4 13 Selecting options when printing 4 13 Advanced tips for printing with Photoshop PostScript color management 4 15 Chapter 5 Page Layout Applications Working with page layout applications 5 1 Defining colors 5 1 Importing images 5 2 CMYK simu...

Page 9: ...rement 5 13 Importing images 5 13 Selecting options when printing 5 13 Chapter 6 Illustration Applications Working with illustration applications 6 1 Defining colors 6 1 Importing images 6 2 CMYK simulation 6 3 Adobe Illustrator for Windows and Mac OS 6 3 Illustrator 9 x color settings 6 3 Specifying print options 6 4 Illustrator 8 x color settings 6 6 Specifying print options 6 7 Saving files for...

Page 10: ...perties of color A 1 The physics of color A 1 CIE color model A 3 Hue saturation and brightness A 4 Additive and subtractive color systems A 5 Printing techniques A 9 Halftone and continuous tone devices A 9 Using color effectively A 10 A few rules of thumb A 11 Color wheel A 11 Color and text A 13 Raster images and vector images A 14 Optimizing files for processing and printing A 16 Resolution of...

Page 11: ...the field of digital color management systems Both the Windows and Mac OS operating systems now support an industry standard format developed by the International Color Consortium ICC This ICC format is implemented on Windows computers in Image Color Matching ICM and on Mac OS computers in ColorSync More and more software developers are also incorporating color management systems into high end app...

Page 12: ...cess to the extent that results are predictable If you designed a poster to print on the Color Server you want the printed colors to match the design specification If you are printing presentations on the Color Server you want to preserve the vivid colors you see on your monitor If you are working with color that will be printed on an offset press you want the Color Server output to match other pr...

Page 13: ...prints and show them to the service technician whenever output densities vary from the norm or other problems appear Calibration Output from color printers is subject to changes in temperature and humidity and is prone to drift over time with a resulting loss in color predictability For this reason regular service visits alone do not guarantee consistent results from a printer Where color accuracy...

Page 14: ... following figure illustrates this concept of differing gamuts You must account for the gamut of your printer when designing on a color monitor When printed colors that fall outside the printer 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 printer The Color Server is specially ...

Page 15: ...ate between the source color space and the color space of the output device The Color Server allows you to specify default and override settings for the source color space information and the output profile information see the Color Guide When you use these settings you do not need to use the features of other color management systems Your Color Server software includes ICC profiles for use with o...

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Page 17: ...to the version of a particular application when considering the workflows in this chapter Short run printing versus color proofing Short run color printing refers to those jobs for which the Color Server is the final print device Printing jobs to the Color Server in preparation for printing on an offset press is referred to as color proofing Both types of Color Server print jobs use RGB CMYK and s...

Page 18: ...r simulation during printing Spot colors such as PANTONE are special inks manufactured to run on an offset printing press Spot colors can be simulated using CMYK toners or process color inks Two basic workflows exist for printing spot colors to the Color Server Spot Color Matching On uses color tables built in the Color Server to simulate the spot color with its closest CMYK equivalent Spot Color ...

Page 19: ...affic is minimized and jobs generally print faster ColorWise uses ICC profiles to convert colors to the device gamut or simulate other devices such as an offset printing press ColorWise manages color conversions for all users printing to the Color Server from Windows and Mac OS computers It allows users to follow a simple workflow with minimal intervention using robust default settings while givin...

Page 20: ...onsistent regardless of how the colors appear on different monitors Print the palette of available colors from business applications and select colors from the printed samples Color reference files are included on the User Software CD see page 2 2 You can also print color charts from the Control Panel and select colors by name or number from the printed samples Advanced applications allow you to d...

Page 21: ...interactions among toners natural smoothness of blends and the capability to render spot and custom colors The Color Server distinguishes text and graphics from image elements so the black channel information is preserved while parameters used for CMYK color separations are maintained Conventional color management systems typically address only color conversions and they occupy your computer proce...

Page 22: ...spect the color standard for each region If colors have been selected specifically for your calibrated Color Server set CMYK Simulation to None For a list and descriptions of ColorWise print options that affect CMYK RGB spot and other colors see the Color Guide Workflow 3 bypassing ColorWise not recommended Bypassing ColorWise color management while a possibility is not a recommended workflow When...

Page 23: ...r CMYK and RGB colors to be interpreted by the Color Server as though they were supplied in the Lab color space and as a result processed by CRDs rather than your simulation settings Include ICC color information in files ColorWise does not conflict with this information and such data is useful for identifying the specific color space used by your files Do not include halftone and transfer functio...

Page 24: ...osoft PowerPoint respectively Short run printing examples The following examples illustrate short run printing on the Color Server Photoshop RGB workflow This short run workflow of printing an RGB image from Photoshop is one of the simplest color workflows In it RGB data is sent from the application through the printer driver to the Color Server The RGB to CMYK conversion takes place on the Color ...

Page 25: ...ce Embed Source Profiles Convert RGB to CMYK Convert CMYK to CMYK Select RGB Mode Select CMYK Mode Select Destination Profile Save as TIFF Save as EPS Save as JPEG Print Mac OS Only Black and White Color Grayscale ColorSync Color Matching PostScript Color Matching Define RGB Source Select RGB Source None Select Rendering Style CRD Select RGB Separation Output Select RGB Separation Simulation Conve...

Page 26: ...kXPress are colored using CMYK process colors or spot colors Use the settings illustrated in this workflow for printing brochures newsletters and other layouts NOTE When you place CMYK colors in a document select them from printed output see page 1 4 This document could be created as follows Create an RGB image in Photoshop and save it as Photoshop EPS Create a graphic in Illustrator using CMYK an...

Page 27: ...PS Save as JPEG Print Read Embedded Profile Define RGB Colors Define CMYK Colors Define spot Colors Convert RGB to CMYK Convert spot to CMYK Embed Source Profile Select Destination Profile Export as TIFF Save as EPS Print Read Embedded Profile Define RGB Colors Define CMYK Colors Define spot Colors Convert RGB to CMYK Convert CMYK to CMYK Convert spot to CMYK Embed Source Profile Select Destinatio...

Page 28: ...eate an RGB image in Photoshop and save it as Photoshop EPS Create a graphic in Illustrator using CMYK colors and a spot color and save as Illustrator EPS Create a presentation in PowerPoint using RGB colors Import the Illustrator EPS graphic into the PowerPoint presentation and place the Photoshop EPS image Print the PowerPoint document to the Color Server Use ColorWise to convert the PowerPoint ...

Page 29: ... to CMYK Select RGB Mode Select CMYK Mode Select Destination Profile Save as TIFF Save as EPS Save as JPEG Print Read Embedded Profile Define RGB Colors Define CMYK Colors Define spot colors Convert RGB to CMYK Convert spot to CMYK Embed Source Profile Select Destination Profile Export as TIFF Save as EPS Print Define RGB Colors Convert CMYK to RGB Print Mac OS Only Black and White Color Grayscale...

Page 30: ...e presses they use In this example an image in Photoshop 5 x is converted from RGB to CMYK using the Photoshop ICC color conversion features in the CMYK Setup option Using the Simulation settings available in ColorWise the CMYK image is printed to the Color Server and the output is made to appear as if it were printed on an offset press For more information on CMYK Setup see your Photoshop 5 x doc...

Page 31: ...e print options Read Embedded Profiles Define RGB Source Embed Source Profiles Convert RGB to CMYK Convert CMYK to CMYK Select RGB Mode Select CMYK Mode Select Destination Profile Save as TIFF Save as EPS Save as JPEG Print Mac OS Only Black and White Color Grayscale ColorSync Color Matching PostScript Color Matching Define RGB Source Select RGB Source None Select Rendering Style CRD Select RGB Se...

Page 32: ...ect the Built in option from CMYK Setup in Photoshop 5 x Color Settings Adjust the Ink Options and Separation Options to match your offset press Select the Tables option in CMYK Setup and click Save This saves your settings as a CMYK ICC profile you will later download to the Color Server as a custom simulation profile Select the Built in option in CMYK Setup again and click OK Start ColorWise Pro...

Page 33: ...es Convert RGB to CMYK Convert CMYK to CMYK Select RGB Mode Select CMYK Mode Select Destination Profile Save as TIFF Save as EPS Save as JPEG Print Mac OS Only Black and White Color Grayscale ColorSync Color Matching PostScript Color Matching Define RGB Source Select RGB Source None Select Rendering Style CRD Select RGB Separation Output Select RGB Separation Simulation Convert Press CMYK to Press...

Page 34: ...lorWise is set to Simulation This workflow useful for proofing brochures newsletters and other layouts allows you to maintain consistency by using the source RGB file for multiple purposes This document could be created as follows Create an RGB image in Photoshop and save it as Photoshop EPS Place the EPS image in a QuarkXPress document Create several process colored page elements alongside the im...

Page 35: ...MYK to CMYK Select RGB Mode Select CMYK Mode Select Destination Profile Save as TIFF Save as EPS Save as JPEG Print Read Embedded Profile Define RGB Colors Define CMYK Colors Define spot Colors Convert RGB to CMYK Convert CMYK to CMYK Convert spot to CMYK Embed Source Profile Select Destination Profile Export as TIFF Save as EPS Print Mac OS Only Black and White Color Grayscale ColorSync Color Mat...

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Page 37: ...g with color The two main factors that influence how you work with color in the creation of documents are the applications you use and the Color Server Applications vary in the methods they provide for choosing colors and in the way they transmit color data to the Color Server Office applications such as presentation software spreadsheets and word processing programs use the RGB color model They t...

Page 38: ...uide NOTE The Color Server allows you to use RGB or CMYK data when printing proofs for an offset press run However sending data to an imagesetter most often requires CMYK data Color reference pages Your Color Server user software includes several types of color reference pages that allow you to see the range of colors that can be printed on your printer For predictable color use the color referenc...

Page 39: ...ow you to add new colors to the palette using a color picker Although some applications allow you to specify color using the CMY HSL and HSV color models these applications always send RGB color data to the Color Server An exception to this is a CMYK EPS file placed in the document which is sent as CMYK data Consider the following when working with color in office applications The range of colors ...

Page 40: ... software You can print these files using different CRDs to see how the colors appear when printed to the Color Server For best results print the color reference page using the same print options you plan to use for your final document Select the colors you want to use from the printed version of the RGB color reference page and use those colors in your document RGB Color Reference Microsoft Power...

Page 41: ...tions you can also choose colors using the RGB HSB HSL or other color models Generally PostScript applications send color information to the Color Server as CMYK data An exception to this is an RGB image placed in the document which is sent directly to the Color Server unless you specify special color management settings in the application In addition some PostScript applications that allow you to...

Page 42: ...ONE see page 2 7 Use swatch color matching to ensure predictable color printing results with the Color Server or to match your Color Server output to colors produced by other printers Swatch color matching Your Color Server user software includes several color reference pages see page 2 2 By choosing colors from these reference pages you ensure that you get the same color from your device For best...

Page 43: ...lay groups of color patches in graduated combinations of yellow magenta and cyan and smaller patches that include 25 50 and 75 black Refer to these pages to pick colors and specify process color values in your application For the location of the file on the User Software CD see the User Software Installation Guide PANTONE Coated Color Reference The PANTONE Coated Color Reference included with your...

Page 44: ...ANTONE colors download the file to the Hold queue Then override the Spot Color Matching setting using a job management utility such as Command WorkStation see the Job Management Guide Default output profile The default output profile consists of both a profile for the printer supported by the Color Server and a calibration target that describes the expected behavior of the printer For more informa...

Page 45: ...y to use CMYK or PANTONE colors is to define them in EPS files with an illustration or page layout application and then place these files in Office documents Colors in EPS files are preserved until they reach the Color Server assuming no PostScript Color Management information was included Office applications lack finesse when displaying EPS files so use these files only when RGB colors are imprac...

Page 46: ...S and import it into the document Selecting options when printing There are few differences among office applications with regard to Color Server printing The instructions in this chapter apply to all office applications Follow the instructions in the Color Guide to specify print options and color management settings To specify these options you must use a PostScript Level 2 or later printer drive...

Page 47: ...scribes the unique display characteristics of your monitor This monitor profile enables Photoshop to compensate for the color behavior of the monitor when displaying images As a result colors previewed on the monitor will more closely match colors in your printed output NOTE If a profile for your monitor is not available use the Adobe Gamma control panel setup Assistant Wizard on Windows to custom...

Page 48: ...and 5 x in a Color Server workflow These color settings include Working Spaces Default color spaces to use when working with RGB and CMYK documents ICC color profiles describe the gamut and color characteristics of these working spaces Color Management Policies Photoshop 6 x or Profile Mismatch Handling Photoshop 5 x Instructions that tell Photoshop what to do when it encounters color data from a ...

Page 49: ... of color managed workflows By customizing color settings you can specify the amount of color management you want to use while working in Photoshop 6 x TO SPECIFY COLOR SETTINGS FOR PHOTOSHOP 6 X 1 Choose Color Settings from the Edit menu The Color Settings dialog box appears 2 Select Advanced Mode In Advanced Mode a more extensive list of options is displayed ...

Page 50: ...you are an office user printing final output choose an output profile that describes the device connected to the Color Server To use a device specific output profile you must first upload the profile from the Color Server to your computer see the Color Guide New CMYK documents you create in Photoshop will use the specified working space For guidelines on specifying Gray and Spot working spaces see...

Page 51: ...e the current group of color settings The Save dialog box appears 8 Name the settings file accept the default saved location and click Save You can switch to your saved settings at any time by choosing the group name from the Settings menu at the top of the Color Settings dialog box Photoshop 5 x color settings Like Photoshop 6 x Photoshop 5 x offers settings for default RGB and CMYK color spaces ...

Page 52: ...en you open an image that already contains a profile Photoshop alerts you as to which color space the file was saved in Avoid conversions between color spaces as much as possible as each conversion results in loss of color information 3 Choose Ask When Opening from the RGB and CMYK menus in the Assumed Profiles area When you open files that do not contain an ICC profile you can convert the file to...

Page 53: ... most RGB files you will be opening If you create new RGB files or want to standardize your RGB files choose EFIRGB 3 Click Load if the file is not visible in the RGB menu You can load the Calibrated RGB setup file EFIRGB ICC ColorSync file or EFIRGB ICM file All describe the same RGB space and automatically set the Gamma White Point and Primaries Consider sRGB if you usually view images on a gene...

Page 54: ...scribing their target press such as SWOP Office users should choose the ICC profile describing the device connected to the Color Server In this case we recommend that you leave images in RGB and allow the Color Server to convert them to CMYK However if you want to use Photoshop to convert RGB images to the CMYK color space of the Color Server you must first upload one of the output profiles from t...

Page 55: ...r TIFF file formats to save RGB images that will be imported into other documents and printed to the Color Server You can import EPS and TIFF files into virtually all page layout applications NOTE Although TIFF files display better when imported into other applications their color and resolution characteristics may be altered by the application into which they are imported EPS files are unaffected...

Page 56: ... X OR 5 X 1 Choose Save As from the File menu The Save As dialog box appears 2 Specify settings in the Save As dialog box Specify a name file format and saved location for the document Clear the Embed Color Profile option Mac OS or ICC Profile option Windows ...

Page 57: ...lude Halftone Screen NOTE If you choose JPEG encoding save a backup of the original image saved with binary encoding until you see the printed results of the JPEG file Occasionally the compression used for JPEG encoding produces unwanted artifacts If you see unexpected results in the printed output of a JPEG file revert to a binary version If you experience problems printing the document in which ...

Page 58: ...or Color Server CRDs To use this source color space information from the embedded profile with Color Server CRDs choose None as the ColorWise RGB Source when you print This applies when you print directly from Photoshop or when the same RGB EPS file is output from another application To override the embedded profile in an EPS file using an RGB Source definition made available by the Color Server c...

Page 59: ...es from Photoshop 6 x and 5 x When you print an RGB image you choose whether the conversion to CMYK is performed by the Color Server using a CRD PostScript using PostScript Color Management or Photoshop built in color management When you print a CMYK image you can print composites or color separations NOTE You cannot use the Combine Separations feature of the Color Server to recombine separations ...

Page 60: ...cts If you see unexpected results in the printed output of a JPEG file revert to the binary version 4 Specify the color space for printing the image For Photoshop 6 x choose Same as Source from the Profile menu For Photoshop 5 x choose RGB Color from the Space menu if you are printing an RGB image Choose CMYK Color if you are printing a CMYK image Any other setting causes Photoshop to convert imag...

Page 61: ...cript Color Management a CRD will be used to perform color conversions to CMYK NOTE The included RGB source color space information is overridden by the ColorWise RGB Source option unless it is set to None The ColorWise Rendering Style option specified will take effect if the ColorWise RGB Source Profile option is set to None For fastest print times you can choose JPEG encoding but check printed o...

Page 62: ...spot 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 If Photoshop is configured for a custom separation using a ICC profile choose the corresponding profile for the ColorWise CMYK Simulation option The pre...

Page 63: ...els Generally however CRDs which affect only RGB data do not affect colors defined in page layout applications For predictable results with CMYK colors use the CMYK Color Reference when defining colors in page layout applications see Choosing colors in PostScript applications on page 2 6 NOTE If the application allows you to define colors in RGB determine whether it converts the RGB data to CMYK b...

Page 64: ...e color conversion of the image and sends CMYK data to the Color Server NOTE To take advantage of RGB Source and Rendering Style settings for images imported into QuarkXPress 4 02 save images in the EPS format or use the Quark PrintRGB XTension which outputs RGB TIFF image files without converting them to CMYK Tips for advanced users If you place multiple RGB images some non photographic and some ...

Page 65: ...ons feature in conjunction with Full Simulation the result may not match that of the same page printed as composite If the document contains CMYK images that were separated according to the color characteristics of a custom ICC profile not a press standard profile specify the corresponding profile as the CMYK Simulation Profile setting on the Color Server NOTE To achieve the workflow described ear...

Page 66: ...ment option and click OK Importing images All RGB images except for RGB TIFF images placed in a document are affected by your RGB Source and Rendering Style settings For best results with placed images use the instructions in Importing images on page 5 2 and CMYK simulation on page 5 3 NOTE InDesign 1 5 2 converts placed RGB TIFF images to CMYK Disable InDesign color management when placing images...

Page 67: ...port Options option 3 Select the file you want to import and click Place The Image Import Options dialog box appears 4 Choose Color Settings from the option menu Make sure the Enable Color Management option is cleared and click OK Selecting options when printing You can use the standard Color Server printer driver interface to select print options from InDesign 1 5 2 ...

Page 68: ... The Print dialog box appears 2 Choose the Color Server from the Name menu 3 Click Properties 4 Click the Fiery Printing tab in the dialog box that appears The standard printer driver interface for the Color Server appears 5 Choose the desired print options For information on setting ColorWise print options see the Color Guide ...

Page 69: ...lect the desired options For information on setting ColorWise print options see the Color Guide Adobe PageMaker 7 x and 6 5 for Mac OS and Windows The Mac OS and Windows versions of PageMaker 7 x and 6 5 are essentially the same The illustrations in this section show only the Windows version except where differences exist between the two versions PageMaker color settings We recommend you use Color...

Page 70: ...ocument 2 Choose Image CMS Source from the Element menu 3 Choose None from the This Item Uses menu and click OK Windows version requirement For the Windows version of PageMaker 6 5 make sure a copy of the Color Server PPD file is in the following folders PM65 RSRC USENGLSH PPD4 Windows System Importing images All RGB images placed in a document are affected by your RGB Source and Rendering Style s...

Page 71: ...ide is not used TO SET PRINT OPTIONS WHEN PRINTING FROM PAGEMAKER 1 Choose the Color Server PPD from the PPD menu in the Print Document dialog box 2 Click Options 3 Choose Normal from the Send image data menu in the Print Options dialog box and click Features To ensure that TIFF images print at their full resolution do not choose the Optimized Subsampling default from the Send image data menu Choo...

Page 72: ...you have additional color management requirements not offered by ColorWise such as managing color on devices not controlled by the Color Server consider using the PageMaker color management features For more information see your PageMaker documentation QuarkXPress 4 x for Mac OS and Windows If you have additional color management requirements not offered by ColorWise consider using Quark CMS XTens...

Page 73: ...kXPress 4 02 converts all RGB data into CMYK even when 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 follow the instructions in Importing images on page 5 2 and CMYK simulation on page 5 3 Selecting options when printing The following procedure provides instructions on printing files to...

Page 74: ... Color Server you may want to consider using the QuarkXPress color management features For more information see your QuarkXPress documentation QuarkXPress 3 32 for Mac OS and Windows Before starting QuarkXPress 3 32 make sure the EfiColor XTension is not loaded in the XTensions folder EFICOLOR profiles are not currently provided with Color Server products Without the correct EFICOLOR profile the E...

Page 75: ...yle settings For best results with placed images follow the instructions in Importing images on page 5 2 and CMYK simulation on page 5 3 Selecting options when printing The following procedure provides instructions on printing files to the Color Server TO SELECT PRINT OPTIONS IN QUARKXPRESS 3 3 1 Choose the Color Server PPD from the Printer Type menu in the Page Setup Mac OS or Printer Setup Windo...

Page 76: ... print without converting to CMYK choose RGB Source and Rendering Style settings If the document contains PANTONE colors choose the appropriate Spot Color Matching setting For instructions on specifying print options see the Color Guide Choose the Color Server PPD Windows Choose output paper size Choose Binary ...

Page 77: ...driver and print settings recommended in the Color Guide NOTE This manual provides instructions for printing composites only For instructions on printing color separations see the documentation for your application As a general rule use the EPS file format when saving files with an illustration application Defining colors All illustration applications use the CMYK color model Although you may be a...

Page 78: ...m applies the specified RGB Source setting to all RGB data and then uses the specified Rendering Style CRD to perform a color conversion to CMYK 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 in the following section In this case the application performs the color conversion of the image and sends CMYK...

Page 79: ...ed for the separation of CMYK images in the document also resides on the Color Server For more information on downloading CMYK Simulation profiles to the Color Server with ColorWise Pro Tools see the Color Guide Adobe Illustrator for Windows and Mac OS The following sections provide guidelines for working with versions 9 x and 8 x of Adobe Illustrator Illustrator 9 x color settings Illustrator 9 x...

Page 80: ... outlines the recommended color settings for Illustrator 9 x in a Color Server workflow TO SPECIFY COLOR SETTINGS 1 Choose Color Settings from the Edit menu The Color Settings dialog box appears 2 Select Advanced Mode In Advanced Mode a more extensive list of options is displayed ...

Page 81: ...olicies area Choose Off from the RGB and CMYK menus This option discards the original profile embedded in a document if it differs from the specified working space In the Profile Mismatches area select the Ask When Opening option This option displays an alert message that allows you to override the specified policy behavior Off when opening documents or importing color data 5 Choose settings for c...

Page 82: ...e defined using other color models For best results use the color definition methods described on page 2 6 All RGB images placed in a document are affected by the RGB Source and Rendering Style settings you select in the PPD For best results with placed images use the instructions in Importing images on page 6 2 and CMYK simulation on page 6 3 If you have additional color management requirements n...

Page 83: ...ONS IN ILLUSTRATOR 1 Choose Print from the File menu in Illustrator The Print dialog box appears 2 For the Windows version of Illustrator specify appropriate print options Choose the Color Server device from the Name menu Choose Composite from the Output menu Choose Level 2 or 3 from the PostScript menu Windows Choose Composite Choose PostScript Level 2 or 3 Click Properties to set print options S...

Page 84: ...ecify these settings if you have a CMYK document containing placed RGB images or an RGB document in Illustrator 9 x In all other cases colors remain unaffected by the settings 5 If the document contains PANTONE named colors choose the appropriate Spot Color Matching setting For instructions on setting additional ColorWise print options see the Color Guide Saving files for importing into other docu...

Page 85: ... Photoshop FreeHand 9 x and 8 x for Windows and Mac OS The information in this section applies to both the Windows and Mac OS versions of FreeHand 9 x and 8 x Only Mac OS dialog boxes are shown but the information and instructions are identical for the Windows version FreeHand color settings When using ColorWise color management turn off FreeHand color management features TO DISABLE COLOR MANAGEME...

Page 86: ...editable paths For details see your FreeHand documentation When you import an EPS image into a document FreeHand inserts a link to the image rather than embedding the original file resulting in a smaller file size If the image is a CMYK EPS file the colors print just as they would from the originating application NOTE Before placing a CMYK EPS file be sure the file was saved with Desktop Color Sep...

Page 87: ...ears in front of the word Normal If the PPD name for your Color Server is not displayed click the button labeled and choose the appropriate PPD from the menu that appears 3 To use ColorWise color management features choose Output Options from the File menu The Output Options dialog box appears Click to select a PPD PPD name appears at right Choose Normal Click to access FreeHand Print Setup Clear ...

Page 88: ...uments When saving files in FreeHand 8 x for importing into other types of documents use the EPS file format FreeHand saves all color information in CMYK The RGB Source and Rendering Style print options have no effect on the color output of RGB artwork saved in FreeHand 8 x and imported into other types of documents In the case of FreeHand files imported into Photoshop however vector data from the...

Page 89: ...lDRAW by specifying settings in the Color Management dialog boxes On Windows computers the Color Management dialog boxes are located in Tools Color Management On Mac OS computers the Color Management functions are located in Edit Preferences Global NOTE If you do not want to use color management in CorelDRAW choose None from the Composite Printer menu under Color Management Profiles Do not select ...

Page 90: ...r Server TO SET PRINT OPTIONS IN CORELDRAW 1 On Windows computers click the General tab and then click Print 2 Make sure you have selected the correct device and PPD and select the Use PPD option 3 Click Properties to specify ColorWise print options Click Properties to access ColorWise print options Print device name appears here Printer driver PPD name appears here ...

Page 91: ...If this option is selected CorelDRAW color management settings are used to convert RGB colors and images to CMYK 5 If a document contains placed RGB images choose RGB Source and Rendering Style settings for your device With the exception of placed RGB images these settings have no effect on colors printed with CorelDRAW 6 If the document contains PANTONE named colors choose the appropriate Spot Co...

Page 92: ...other kinds of documents In the case of CorelDRAW files imported into Photoshop however vector data from the CorelDRAW file is rasterized into bitmaps in Photoshop and the final color space of the bitmap data is determined by the color mode you set in Photoshop Optional color management in CorelDRAW If you have additional color management requirements not offered by ColorWise such as managing colo...

Page 93: ...o color theory You will encounter some of these concepts such as hue saturation and brightness when you work with color in applications others provide useful background information Color is a complex topic so consider this a starting point for experimentation and further research The physics of color The human eye can see electromagnetic radiation at wavelengths between 400 nanometers purplish blu...

Page 94: ... example contains much less blue light than sunlight Tungsten light appears white to the human eye which up to a point can adjust to the different light sources However color objects appear different under tungsten light than they do in sunlight because of the different spectral makeup of the two light sources The mixture of light wavelengths emitted by a light source is reflected selectively by d...

Page 95: ...chromaticity diagram is not perceptually uniform some areas of the diagram seem to compress color differences relative to others it is a good tool for illustrating some interesting aspects of color vision By mixing any two spectral colors in different proportions we can create all the colors found on the straight line drawn between them in the diagram It is possible to create the same gray by mixi...

Page 96: ...an be described in terms of three varying characteristics called the HSB color model Hue tint the qualitative aspect of a color red green or orange Saturation the purity of the color Brightness relative position between white and black While the CIE chromaticity diagram shown earlier conveys hue and saturation a three dimensional color model is required to add the brightness component as shown in ...

Page 97: ...ere are two methods for creating a range of colors from a set of primary colors Computer monitors and scanners are based on the additive color model Printing technologies including the Color Server and offset presses are based on the subtractive color model Additive RGB color Color devices that use the additive color model create a range of colors by combining varying amounts of red green and blue...

Page 98: ...iliar device that is based on this color model is the computer monitor shown in the following figure Monitors have red green and blue phosphors that emit varying amounts of light to display a given color Scanners create digital representations of colors by measuring their red green and blue components through colored filters ...

Page 99: ...ow they absorb red green and blue light respectively as shown in the following figure 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 In theory combining all three subtractive primaries yields black but...

Page 100: ...AA 8 Desktop Color Primer ...

Page 101: ...g 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 With the Color Server you simply print the fil...

Page 102: ...offset printing using process and spot colors Many applications allow you to specify the screening used for each printing plate Using color effectively The ability to print in color can greatly increase the effectiveness of your message whether you are printing a presentation or newsletter or proofing an ad concept that will later be printed on a press Some potential benefits of using color includ...

Page 103: ...chromatic materials Consider the tastes of your target audience when choosing colors Keep a file of printed color pieces that appeal to you or strike you as effective Refer to it for ideas when designing your own documents Color wheel A color wheel like the one in the following figure is a helpful tool for understanding the interrelation of colors The colors on one side of the color wheel from mag...

Page 104: ...one another on the color wheel result in subtle harmonies The color wheel simplifies color relationships for the purpose of clarity showing only saturated or pure colors Adding the myriad variations of each hue to the palette more or less saturated darker or lighter creates a wealth of possibilities Taking a pair of complements from the color wheel and varying the saturation and brightness of one ...

Page 105: ...is not fatiguing to read for extended periods For many color materials using black text on a white background and confining color to graphic elements and headings is a good choice 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 comple...

Page 106: ...create pure cyan or pure magenta text that prints with the same sharpness as black text Pure yellow text is extremely hard to read on anything but a dark or complementary background Raster images and vector images Two broad categories of artwork can be printed from a personal computer to a color printer raster and vector images A raster image also referred to as a bitmap is composed of a grid of p...

Page 107: ...lity 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 graphics picture objects are defined mathematically as lines or curves between points hence the term vector see example b Picture elements can have solid gradient or pattern...

Page 108: ... edit Beyond a certain threshold a higher image resolution greatly increases file size while having a minimal effect on output quality The optimal image resolution depends on the resolution of the final print device Aim for the resolution that optimizes both file size and output quality The resolution of a raster image along with its bit depth and physical dimensions determine its file size The fo...

Page 109: ... and save versions at progressively lower resolutions down to 100 ppi using a pixel editing application such as Photoshop Always save a copy of the original high resolution version in case you must revert to it The high resolution data cannot be recreated from a lower resolution version Print the files and examine the output You will likely begin to see a marked deterioration in output quality at ...

Page 110: ...If you scale a large image to a percentage of its actual size you incur unnecessary file transfer time because the image data for the entire large image is sent to the printer If an image is placed multiple times at markedly different sizes in a document save a separate version of the image at the correct size for each placement If you need to place an image at greater than 100 in a document remem...

Page 111: ...bits per pixel CMYK images bitmap An image comprised of small squares arranged in a grid Each square in the grid is a pixel The number of pixels per inch defines the resolution of a bitmap blasting 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 the boundaries defined in the file BMP A gra...

Page 112: ...h casual and experienced color management users composite printer Any output device that can print directly in color without first creating color separations A composite print can be used as an early proof of an offset print job continuous tone contone Describes a photographic image that contains gradient tones from black to white such as a 35mm transparency or a photograph Continuous tones cannot...

Page 113: ...ded in another PostScript stream Euroscale A European standard of specifications for separations proofs and color printing flexography A printing technology that uses flexible raised image plates Flexography can be used to print on non flat materials such as cans four color printer A printing device that uses cyan magenta yellow and black ink or toner gamma A numeric value representing the relatio...

Page 114: ...method for representing an original continuous tone image using a pattern of dots lines or other patterns HSB A color model where each color is represented by its hue saturation and brightness components supported by most color applications ICC profile An industry standard color profile format developed by the International Color Consortium ICC that describes the color capabilities including the g...

Page 115: ...It consists of both a profile for your device and a calibration target that defines the expected density response of the device phosphor Material used in making computer monitors phosphors glow and emit red green and blue light when struck by an electron beam thus creating an image photographic rendering A color rendering style that preserves tonal relationships in images Unprintable colors are ma...

Page 116: ...ndering intent is Photographic rendering also referred to as Image rendering or Contrast rendering which is designed for photographic images resolution The number of pixels per inch ppi in a bitmap image or the number of dots per inch dpi that a device can render RGB An additive color model that makes a range of colors by combining red green and blue light called the additive primaries Commonly us...

Page 117: ...lors Black is added to the subtractive primaries to compensate for deficiencies of the toners or inks and for more efficient black printing substrate In printing the material upon which the job is printed SWOP The abbreviation for Specifications for Web Offset Publications A standard of specifications for separations proofs and color printing on a web offset press not a sheet fed press undercolor ...

Page 118: ...ay originate with an RGB scan imported to the client workstation and opened on the desktop in an image processing application such as Photoshop After adjustments are made to the scanned image it is evaluated on a color proofing device for eventual color printing on the same device or on press ...

Page 119: ... Michael Understanding Desktop Color Second Edition Berkeley Peachpit Press 1994 Margulis Dan Professional Photoshop 6 The Classic Guide to Color Correction John Wiley Sons 2000 ISBN 0471403997 Miller Marc D and Zaucha Randy The Color Mac Second Edition Hayden Books 1995 Out of print X Rite Color Guide and Glossary Communication Measurement and Control for Digital Imaging and Graphic Arts X Rite I...

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Page 121: ...i conversion by color management systems xv custom color systems 2 5 defining in applications 2 1 HSB model 2 5 A 4 HSL model 2 3 2 5 HSV model 2 3 illustration applications 6 1 physics of A 1 process colors A 9 proofing examples 1 14 properties of A 1 reference pages 2 2 RGB model 2 3 2 5 split complements A 12 spot colors A 10 subtractive model A 5 A 7 subtractive primaries A 7 swatch color matc...

Page 122: ... in A 11 gravure A 9 H halftoning A 9 HSB color model 2 5 A 4 HSL color model 2 3 2 5 HSV color model 2 3 hue saturation and brightness A 1 A 4 I ICC profiles assigning to RGB images 6 2 included with user software xv workflow 1 14 ICC standard for color management systems xi illustration applications 6 1 Illustrator 2 5 6 3 to 6 9 Image Color Matching xi InDesign 5 3 to 5 7 ink xiii International...

Page 123: ...mulation option print devices maintenance xiii printing test prints xiii printing raster images A 15 techniques A 9 prism A 2 process colors 2 7 A 7 A 9 A 10 profiles device xi proofing prepress A 9 Q QuarkXPress 2 5 5 10 to 5 14 QuickDraw applications using color in 2 3 to 2 5 R raster images A 14 to A 17 bit depth A 15 A 16 file size A 16 for offset press printing A 17 printing A 15 resolution A...

Page 124: ...w 4 11 printing at full resolution 5 9 recommended for imported images 4 9 5 2 RGB 6 2 tint A 4 toner xiii transparencies photographic xiv A 7 triads A 12 V vector images A 14 A 15 visible spectrum of light A 1 W white point xv Windows Graphics Device Interface see GDI applications Word see Microsoft Office workflow advanced 1 8 color proofing 1 1 ICC profiles 1 14 short run jobs 1 1 simple 1 3 wi...

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