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Oki ES3640eMFP, Reference Manual

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1

1-18 Overview of Color Management Concepts

ES3640e MFP Color Reference Guide - 18

• Process Simulation of PANTONE Solid Coated Colors—a 19-page 

downloadable PostScript file of color patches showing CMYK 
equivalents of PANTONE Coated colors. This file prints differently 
depending on the setting of the Spot Color Matching option 
(see 

“Using the PANTONE reference”

 on page 4-35). 

In addition, you can print RGB, CMY, and PANTONE color charts 
from the Fiery.

Summary of Contents for ES3640eMFP

Page 1: ......

Page 2: ...040 5 343 311 5 398 107 5 424 754 5 442 429 5 459 560 5 467 446 5 506 946 5 517 334 5 537 516 5 543 940 5 553 200 5 563 689 5 565 960 5 583 623 5 596 416 5 615 314 5 619 624 5 625 712 5 640 228 5 666...

Page 3: ...l not be copied onto another disk or into memory except as part of the delivery of the Electronics for Imaging Inc products or software This product includes software developed by the Apache Software...

Page 4: ...Einhaltung zutreffender Bestimmungen h ngt davon ab dass geschirmte Ausf hrungen ben tzt werden F r die Beschaffung richtiger Ausf hrungen ist der Betreiber verantwortlich Software License Agreement...

Page 5: ...he Software will be corrected EFI makes no warranty implied or otherwise regarding the performance or reliability of any third party products software or hardware THE INSTALLATION OF ANY THIRD PARTY P...

Page 6: ...tronics for Imaging General The rights and obligations of the parties related to this Agreement will be governed in all respects by the laws of the State of California exclusively as such laws apply t...

Page 7: ...ment tools 1 17 Chapter 2 Using Color Management Workflows Understanding workflows 2 19 Standard recommended workflow 2 22 Choosing colors 2 23 Understanding color models 2 24 Optimizing for output ty...

Page 8: ...fined halftone screens 4 40 Ensuring color accuracy when you save a file 4 41 Chapter 5 Managing Color in Adobe Photoshop Specifying color settings 5 42 Configuring Photoshop color settings 5 42 Savin...

Page 9: ...r models in Adobe Illustrator 7 72 Illustrator color settings 7 72 Specifying print options 7 73 Saving files for importing into other documents 7 75 Specifying print options 7 76 Using Illustrator co...

Page 10: ...and subtractive color systems A 92 Understanding color gamut A 96 Printing techniques A 97 Halftone and continuous tone devices A 97 Using color effectively A 98 A few rules of thumb A 98 Color wheel...

Page 11: ...r computers The Color Guide provides information on managing the color output of the Fiery It explains how to calibrate your Fiery and take advantage of the ColorWise color management system as well a...

Page 12: ...n notes that explain how to print to the Fiery from popular Microsoft Windows and Apple Mac OS applications The Glossary at the back of this guide defines terms and concepts for example output profile...

Page 13: ...bout the software provided with your Fiery including sample color reference pages used to verify print results Job Management Guide for information about performing color management tasks and using Co...

Page 14: ...ce such as CIELAB as its intermediate color space To perform its translation a CMS needs information about the color space of the source image and the gamut of the printer This information is provided...

Page 15: ...e source color space and the color space of the output device The Fiery allows you to specify default and override settings for the source color space information and the output profile information se...

Page 16: ...Fiery to manage color for most color printing jobs without adjusting any settings A desktop host based color management system uses ICC profiles to convert colors from one device gamut to another see...

Page 17: ...mputers It allows users to follow a simple workflow with minimal intervention using robust default settings while giving advanced users the control and precision they need Using ColorWise color manage...

Page 18: ...d Colors a 19 page downloadable PostScript file of color patches showing CMYK equivalents of PANTONE Coated colors This file prints differently depending on the setting of the Spot Color Matching opti...

Page 19: ...e color management Understanding workflows The term workflow is used to describe the path a job follows from its creation in a desktop application to final printed output The Fiery supports a variety...

Page 20: ...cation Select colors based on the desired output see Choosing colors on page 2 23 Select file format based on the desired output EPS data is not manipulated Use ColorWise Color Management as described...

Page 21: ...de 21 Calibration Device maintenance Calibrate as described in the Color Guide Perform regular maintenance as recommended by the printer manufacturer Use the paper stock toner and other materials reco...

Page 22: ...color workflow For this workflow Bypass any color management in the applications and printer drivers This ensures that the colors you selected reach the Fiery and ColorWise in a usable form Keep in mi...

Page 23: ...he printed colors to match the design specification If you are printing presentations on the Fiery you want to preserve the vivid colors you see on your monitor If you are working with color that is t...

Page 24: ...ors can be simulated using CMYK toners also known as process color inks With the Spot Color Matching print option you can determine how spot colors are printed at the Fiery Spot Color Matching On uses...

Page 25: ...m on demand applies to producing printed output when it is needed You may be familiar with the term short run which usually applies to the volume of a printing task Although these terms do not mean ex...

Page 26: ...oose the appropriate settings for print options affecting color output see the Color Guide Chapter 1 Note The Fiery allows you to use RGB or CMYK data when printing proofs for an offset press run Howe...

Page 27: ...lors you ensure your printed output remains consistent regardless of how the colors appear on different monitors Print the palette of available colors from business applications and select colors from...

Page 28: ...s category are most word processing spreadsheet and presentation graphics applications These applications use Windows GDI to display and print when running Windows and Apple QuickDraw to display and p...

Page 29: ...style and has a different way of mapping unprintable colors to the color gamut of your printer For more information on color rendering styles see the Color Guide Chapter 1 Using color matching tools...

Page 30: ...with an illustration or page layout application and then place these files in Microsoft Office documents Colors in EPS files are preserved until they reach the Fiery assuming no PostScript Color Mana...

Page 31: ...placed in a document are affected by the settings you choose for the RGB Source and Rendering Style print options Mixing imported image types Advanced color management If you place multiple RGB images...

Page 32: ...to ensure color accuracy When saving EPS files do not include PostScript Color Management information This minimizes the risk of conflicting data and multiple color conversions PostScript Color Manage...

Page 33: ...different ways Most allow you to choose process colors by entering percentages for cyan magenta yellow and black as well as named colorsfrom a spot color system such as PANTONE When you print composit...

Page 34: ...color libraries such as PANTONE see page 4 35 Using swatch color matching tools Your Fiery user software includes several color reference pages see page 1 17 By choosing colors from these reference pa...

Page 35: ...in your application For the location of the file on the EFI Utilities CD see the User Software Installation Guide Using the PANTONE reference Use this reference Process Simulation of PANTONE Solid Co...

Page 36: ...as well as the PANTONE color name number are printed below each swatch To print the reference download the file to the Fiery For the location of the file on the User Software CD see the User Software...

Page 37: ...hich 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 application...

Page 38: ...ou print the job Illustration application If you define colors in RGB and print directly from the application the application converts the RGB data to CMYK before sending it to the Fiery This conversi...

Page 39: ...g the application s color management tools see the following section In this case the application performs the color conversion of the image and sends CMYK data to the Fiery Note To take advantage of...

Page 40: ...ith Full Simulation the result may not match that of the same page printed as composite If the document contains CMYK graphics that were separated according to the color characteristics of a custom IC...

Page 41: ...ng color accuracy when you save a file You can take the following steps to ensure color accuracy When saving EPS files do not include PostScript Color Management information This minimizes the risk of...

Page 42: ...e when working with RGB and CMYK documents ICC color profiles describe the gamut and color characteristics of these working spaces Color Management Policies Instructions that tell Photoshop what to do...

Page 43: ...cument converted to RGB CMYK or Grayscale color modes and for spot colors in a document Choose an appropriate ICC profile to embed when saving a file for each color space Use the following guidelines...

Page 44: ...New CMYK documents you create in Photoshop will use the specified working space For guidelines on specifying Gray and Spot working spaces see your Photoshop documentation 4 In the Color Management Pol...

Page 45: ...he rendering intent see your Photoshop documentation Select Use Black Point Compensation and Use Dither 8 bit channel images to optimize the quality of color conversions 7 Clear the Desaturate Monitor...

Page 46: ...s to save RGB images that will be imported into other documents and printed to the Fiery You can import EPS and TIFF files into virtually all page layout applications Note Although TIFF files generall...

Page 47: ...47 2 Specify settings in the Save As dialog box Specify a name file format and location for the document Clear the Embed Color Profile option Mac OS or ICC Profile option Windows 3 Click Save If you c...

Page 48: ...een 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 encodi...

Page 49: ...PostScript Color Management or Photoshop built in color management When you print a CMYK graphic you can print composites or color separations Note Make sure that the Fiery Combine Separations print o...

Page 50: ...If you choose JPEG encoding save a backup of the original image with binary encoding until you see the printed results of the JPEG file Occasionally the compression used for JPEG encoding produces un...

Page 51: ...m the Profile menu to specify the color space for printing the image Any other setting causes Photoshop to convert image data to that color space before sending it to the Fiery 7 Click Print To print...

Page 52: ...lly the compression used for JPEG encoding produces unwanted artifacts If you see unexpected results in the printed output of a JPEG file revert to the binary version 4 Choose Same as Source from the...

Page 53: ...s To use this source color space information from the embedded profile with Fiery CRDs choose None as the ColorWise RGB Source when you print This applies when you print directly from Photoshop or whe...

Page 54: ...on Printing CMYK graphics with Photoshop PostScript Color Management If you select a CMYK color space and decide to use PostScript Color Management Photoshop sends CMYK data to the Fiery along with Po...

Page 55: ...phic 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 Sim...

Page 56: ...stalled on your computer as described in the User Software Installation Guide Adobe InDesign 2 0 1 and 1 5 2 The following sections outline the recommended settings for using Adobe InDesign with a Fie...

Page 57: ...n 2 0 1 and 1 5 2 ES3640e MFP Color Reference Guide 57 To disable InDesign 1 52 color management 1 Choose Color Settings Document Color Settings from the Edit menu 2 Clear the Enable Color Management...

Page 58: ...o CMYK Disable InDesign color management when placing images in a document To disable InDesign 2 0 1 color management when importing images 1 Choose Place from the File menu The Place dialog box appea...

Page 59: ...om the option menu Make sure the Enable Color Management option is cleared and click OK Selecting options when printing You can use the standard Fiery printer driver interface to select print options...

Page 60: ...Printing tab in the dialog box that appears The standard printer driver interface for the Fiery appears 6 Choose the desired print options For information on setting ColorWise print options see the C...

Page 61: ...e InDesign 2 0 1 and 1 5 2 ES3640e MFP Color Reference Guide 61 3 Click Printer The AdobePS Print dialog box appears 4 Choose Printer Specific Options The Fiery print options appear 5 Select the desir...

Page 62: ...e Color Guide Chapter 1 6 Click Print To set print options from the Windows version of InDesign 1 5 2 1 Choose Print from the File menu The Print dialog box appears 2 Choose the Fiery from the Name me...

Page 63: ...e Color Guide Chapter 1 To set print options from the Mac OS version of InDesign 1 5 2 1 Choose Print from the File menu The Print dialog box appears 2 Choose the Fiery from the Printer menu 3 Choose...

Page 64: ...of PageMaker 6 5 make sure a copy of the Fiery PPD file is in the following folders PM65 RSRC USENGLSH PPD4 Windows System For information about installing this file see your PageMaker documentation...

Page 65: ...settings For best results with placed images use the instructions in Working with imported images on page 4 39 Selecting options when printing All print settings are specified from the various Print...

Page 66: ...rint at their full resolution do not choose the Optimized Subsampling default from the Send image data menu 4 If a document contains RGB placed images or colors defined in RGB that will not be separat...

Page 67: ...Fiery consider using the PageMaker color management features For more information see your PageMaker documentation QuarkXPress 5 x and 4 x for Mac OS Importing images With the exception of RGB images...

Page 68: ...cument contains PANTONE colors choose the appropriate Spot Color Matching setting For instructions on specifying print options see the Color Guide Chapter 1 Optional Color Management from QuarkXPress...

Page 69: ...which outputs RGB TIFF image files without converting them to CMYK QuarkXPress 3 32 for Mac OS and Windows Before starting QuarkXPress 3 32 make sure the EfiColor XTension is not loaded in the XTensi...

Page 70: ...the Printer Type menu in the Page Setup Mac OS or Printer Setup Windows dialog box 2 If a document contains RGB placed images or RGB colors that QuarkXPress will print without converting to CMYK choo...

Page 71: ...and 4 x for Mac OS ES3640e MFP Color Reference Guide 71 If the document contains PANTONE colors choose the appropriate Spot Color Matching setting For instructions on specifying print options see the...

Page 72: ...re installed on your computer as described in the User Software Installation Guide This chapter provides instructions for using Adobe Illustrator Macromedia FreeHand and CorelDRAW for Windows and Mac...

Page 73: ...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 Instructions that tell Illustr...

Page 74: ...profile represents the default RGB color space used by the Fiery New RGB documents you create in Illustrator will use this working space For CMYK choose a profile that describes your target press such...

Page 75: ...Choose a rendering intent from the Intent menu that will optimize the color quality of the conversion For guidelines on choosing the rendering intent see your Illustrator documentation Select the Use...

Page 76: ...ou set in Photoshop Specifying print options The following procedure explains how to set print options when printing a document from Illustrator to the Fiery To set print options in Illustrator 1 Choo...

Page 77: ...77 77 Adobe Illustrator for Windows and Mac OS ES3640e MFP Color Reference Guide 77 Illustrator 10 x for Windows Choose Composite Click Properties to set print options Select the device name...

Page 78: ...Fiery device from the Printer menu Choose Adobe Illustrator from the option menu below the Printer menu Choose Composite from the Output menu Choose Level 3 from the PostScript menu If you encounter...

Page 79: ...79 Adobe Illustrator for Windows and Mac OS ES3640e MFP Color Reference Guide 79 Choose Composite Illustrator 10 x for Mac OS Choose Composite Choose PostScript Level 3 Illustrator 8 x and 9 x for Mac...

Page 80: ...print options see the Color Guide Chapter 1 Using Illustrator color management If you have additional color management requirements not offered by ColorWise such as managing color on devices not cont...

Page 81: ...in FreeHand are sent to the device in CMYK even those defined using other color models For best results use the color definition methods described on page 4 34 You can control the conversion of RGB co...

Page 82: ...FreeHand prints composites of the image at the low resolution used for screen viewing All RGB images placed in a document are affected by your RGB Source and Rendering Style settings in the PPD For be...

Page 83: ...he Print setting menu If the Use PPD option is selected a plus sign appears in front of the word Normal If the model name for your Fiery is not displayed click the button labeled and choose the approp...

Page 84: ...ced RGB images these settings have no effect on colors printed with FreeHand If the document contains PANTONE named colors choose the appropriate Spot Color Matching setting when you print the documen...

Page 85: ...ools 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 compos...

Page 86: ...ure outlines how to set print options when printing from CorelDRAW to the Fiery To set print options in CorelDRAW 1 On Windows computers click the General tab and then click Print 2 Make sure you have...

Page 87: ...ndering 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...

Page 88: ...pts 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 experimen...

Page 89: ...ngsten 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 o...

Page 90: ...d Although the CIE 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...

Page 91: ...brightness A color can 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 col...

Page 92: ...ors by manipulating hue saturation and brightness For example some applications use a color picker that can be reconfigured according to your preference as shown below Additive and subtractive color s...

Page 93: ...ese colors are called the additive primaries shown in the following figure White is created by adding the maximum amount of red green and blue light available Black occurs wherever all three colors ar...

Page 94: ...transmitted by the media in use The subtractive primariesare cyan magenta and yellow they absorb red green and blue light respectively as shown in the following figure Combining any two subtractive p...

Page 95: ...A A 95 The properties of color ES3640e MFP Color Reference Guide 95 Magenta Yellow and blacK CMYK The use of black toner produces rich solid blacks and allows for improved rendering of black text...

Page 96: ...n offset press and vice versa The 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 tha...

Page 97: ...e 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 Fiery you simply print the file The Fiery processes t...

Page 98: ...lor effectively The ability to print in color can greatly increase the effectiveness of your message whether you are printing a presentation or newsletter short run printing or proofing an ad concept...

Page 99: ...ted 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...

Page 100: ...ample b and triads three colors evenly spaced on the color wheel example c Colors adjacent to one another on the color wheel result in subtle harmonies The color wheel simplifies color relationships f...

Page 101: ...heel you have a good framework for experimenting with color combinations Many books targeted at graphic designers show groups of preselected color combinations Some are organized by themes or moods an...

Page 102: ...nts printed on paper This technique is widely used in presentations When using color text avoid dazzling text and background combinations created from primary complements especially red and cyan or re...

Page 103: ...test prints to find the smallest point size at which color text prints clearly When using high end graphics applications that allow you to specify color as percentages of cyan magenta yellow black yo...

Page 104: ...t of information per pixel Grayscale images require 8 bits per pixel For photographic quality color 24 bits of RGB color information are required per pixel yielding 256 levels of red green and blue Fo...

Page 105: ...es that produce the highest possible print quality while minimizing the processing time and disk space they require Resolution of raster images While a 72 ppi raster image appears sharp on a monitor t...

Page 106: ...le size However higher resolutions for example 250 to 300 ppi may be necessary for offset printing when quality is of the utmost importance or for images containing sharp diagonal lines To find the be...

Page 107: ...resolutions than necessary for proofing on your Fiery Scaling Ideally each raster image should be saved at the actual size and it will be placed in the document at the optimal resolution for the print...

Page 108: ...e Guide 108 image at the correct size for each placement If you need to place an image at greater than 100 in a document remember that the output image resolution is affected For example if you scale...

Page 109: ...r image Black and white images require only one bit per pixel Grayscale images with 256 shades of gray require 8 bits or 1 byte per pixel Photographic quality color images can require 24 bits per pixe...

Page 110: ...ystem CMS System used to match color across different input display and output devices color rendering dictionary See CRD Color Rendering Dictionary color separation The process of separating a color...

Page 111: ...ostScript Level 2 and PostScript 3 color devices that maintains the best possible translation of color from one color device to another A color rendering dictionary CRD is used by the color management...

Page 112: ...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...

Page 113: ...ng technology that uses an etched cylinder that has been immersed in ink The ink that remains in the etched areas is applied to the paper The non etched surfaces of the cylinder are non printing areas...

Page 114: ...nization ISO a standard for digital compression of still image graphic data metamerism Phenomenon in which two colors composed of different combinations of light wavelengths appear identical under a s...

Page 115: ...ination of the words picture and element PostScript A device independent page description language developed by Adobe which is used to print and display pictures and text PostScript 3 includes many en...

Page 116: ...An example of a rendering 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...

Page 117: ...rinted using a custom ink for that color in contrast to process colors that are printed using combinations of cyan magenta yellow and black Also referred to as a named color Status T A spectral respon...

Page 118: ...ere picture objects are defined mathematically as lines or curves between points These mathematical definitions are interpreted by an image language such as PostScript Vector images include artwork cr...

Page 119: ...of print Kieran Michael Understanding Desktop Color Second Edition Berkeley Peachpit Press 1994 Margulis Dan Professional Photoshop The Classic Guide to Color Correction John Wiley Sons 2002 ISBN 076...

Page 120: ...4 40 CMYK Simulation profile 4 40 color accent color A 99 additive model A 93 CMY model 3 28 complements A 100 controlling printing results 2 23 conversion by color management systems 1 14 custom colo...

Page 121: ...s 1 14 Document Color Mode Illustrator 7 72 E EFICOLOR profiles 6 69 XTension 6 69 EFIRGB Illustrator 7 74 Photoshop 5 43 embedded profile Illustrator 7 75 Encoding Photoshop setting 5 50 EPS Encapsul...

Page 122: ...icrosoft Office 3 28 to 3 32 Microsoft PowerPoint see Microsoft Office Microsoft Word see Microsoft Office misregistration of colors A 103 moir A 97 monitor color management 2 26 monitors color model...

Page 123: ...1 14 proofing color 2 25 prepress A 97 Q Quark CMS XTension 6 69 QuarkXPress 4 33 6 67 to 6 71 QuarkXPress color management 6 68 QuickDraw applications using color in 3 28 to 4 33 R raster images abou...

Page 124: ...ssigning ICC profiles to 4 39 preview 5 48 printing at full resolution 6 66 recommended for imported images 4 39 5 46 tint A 91 transparencies photographic A 94 A 96 triads A 100 V vector images A 103...

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