Oki C942dp C931 C941 C942 - Fiery C9 Server - Color Guide
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- Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 1
Fiery® C9 Server Color Printing - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 2
© 2016 Electronics For Imaging, Inc. The information in this publication is covered under Legal Notices for this product. 31 March 2016 45142408 *45142408* - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 3
Contents Color Printing 3 Contents Introduction 5 Terminology, conventions, and documentation resources 5 Key features of ColorWise 6 Color features in Command WorkStation 7 Color print options 8 Color management on the C9 Server 8 Auto trapping 9 Black overprint 9 Black Point - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 4
Color Printing 4 Contents Install ICC profiles on a Windows computer 27 Install ICC profiles on a Mac OS computer 27 Install ICC profiles on a Windows computer over the network 27 Install ColorSync profiles on a Mac OS computer over the network 28 Color Bars folder 28 Calibration 29 Check - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 5
documentation resources This document uses the following terminology and conventions to refer to the Fiery® C9 Server, printer, and supported operating systems. Term or convention Refers to Aero C9 Server (in illustrations and examples) Command WorkStation Fiery Command WorkStation Printer - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 6
. This feature is useful for making one device behave like another for RGB data. It also allows you to evaluate the appearance of an RGB file under C9 Server to meet new printing needs as they arise. ColorWise supports ICC profiles, which are industry-standard color profiles that describe the - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 7
-to-use calibrator, which allows you to calibrate using a measurement instrument. Command WorkStation also allows you to use any Status T densitometer by importing data in a standard file format. In this case, it is important to note that the quality of the instrument used determines the quality of - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 8
page of a document may contain a mix of RGB, CMYK, and spot colors. Through print options that apply specifically to RGB, CMYK, or spot color data, you specify the color management of a job. Note: Before you set these color management options, you must set the Color Mode option, which specifies the - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 9
, the CMYK processing options are not used. Instead, the RGB/Lab Rendering Intent print option, which normally affects only RGB data, is used to process the calibrated CMYK data. Auto trapping Trapping is a technique where the size of objects is modified so that colors printed next to each other - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 10
Color Printing 10 Color print options Black overprint The Black overprint option specifies whether black text, or black text and vector graphics (where black is defined as RGB=0, 0, 0, or as CMYK=0%, 0%, 0%, 100%) print over colored backgrounds. If you turn off this option, black text, or black text - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 11
Color Printing 11 Color print options amounts of toner, combined with certain types of paper stock, cause objects to spread beyond their defined boundaries. For some jobs, we recommend setting Black Text and Graphics to Normal. For example, if a job includes gradient fills that use black, the - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 12
Method The CMYK Processing Method option allows you to define the CMYK-to-CMYK conversion method for the CMYK data in a print job. • Pure Primaries - If your C9 Server supports this setting, it outputs the primary colors in a job (C only, M only, or Y only) as primary colors, using only a single - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 13
you print with the ColorWise Off setting, make sure that the options you choose in your application do not cause the application to modify CMYK data. You must specify no color management in the application when you print with the ColorWise Off setting. RGB/Lab Source When you specify a profile for - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 14
bypasses its normal color management and applies the device link conversion to the color data in the job. The source profile and the output profile are not used. regardless of the original application used. This feature also fully supports DCS 2.0 file formats when included in a PostScript print job - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 15
Composite overprint option does not overprint the foreground object if it is an RGB object. The Composite overprint print option is supported for PostScript and PDF jobs produced by the following applications: • Adobe Acrobat • Adobe Illustrator • Adobe InDesign • QuarkXPress • CorelDRAW The 2-color - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 16
They might be objects that you specified as transparent using an application that supports this capability, or they might be objects with a special effect, such can result in a longer processing time, especially for variable data printing (VDP) jobs that contain multiple individual PDF pages. We - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 17
, which are not affected by Optimize RGB transparency. Output profile The Output profile print option specifies the output profile used to process a job. Color data in a print job is converted to the color space of the printer, which is described by the output profile. In addition, the calibration - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 18
to select from the four rendering intents currently found in industry-standard ICC profiles. Note: If you experience tone reproduction problems, use the Photographic setting. Rendering intent Best used for Photographic - Typically results in less-saturated output than presentation rendering when - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 19
style may also be used with PostScript color management to affect CMYK data for simulation purposes. Absolute Colorimetric Separate RGB/Lab to CMYK Source the color spaces that are used by the C9 Server to separate the RGB data into CMYK values. • When Separate RGB/Lab to CMYK Source is turned on - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 20
profiles.) With Spot-On, the C9 Server uses the CMYK matches determined through Spot-On. • Off - The C9 Server processes spot colors as CMYK data and uses CMYK equivalents defined by the spot color manufacturer, such as PANTONE. These are the same CMYK equivalents used by applications that include - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 21
Color Printing 21 Color print options RGB If you turn on Use Embedded Profile When Present (RGB), the C9 Server ignores the RGB Source option and uses the RGB profile embedded in the print job (if any) as the RGB source profile. If you turn off this option, the C9 Server uses the profile specified - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 22
Color Printing 22 Color print options Color print option Color tab of printer driver or Job Properties Basic Settings in printer driver, Job Properties, or Color Setup Expert Settings in printer driver, Job Properties, or Color Setup CMYK/Grayscale source or device link x x Combine - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 23
Color Printing 23 Color print options Print with color settings in Mac OS When you print a job from a Mac OS application using the printer driver, you must set color-management print options appropriately. 1 Select Print in your application. 2 Expand the dialog box, if necessary, by clicking the - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 24
new profile. You can install (copy) additional ICC profiles from the User Software DVD to your computer. Use the ICC profiles with applications that support ICC standards, such as Adobe Photoshop. You can also install ICC profiles from the C9 Server to your computer over the network. ICC profiles on - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 25
icc • PSO_LWC_Standard_eci.icc • PSO_MFC_Paper_eci.icc • PSO_SNP_Paper_eci.icc • PSO_Uncoated_ISO12647_eci.icc • PSO_Uncoated_NPscreen_ISO12647_eci.icc • SC_paper_eci.icc EFI Support folder The EFI Support folder is located inside the Windows Color Files\Legacy\ICC Profiles folder or Mac Color Files - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 26
Color Printing 26 Color profiles CMYK Profiles: • EFIEURO.icc • EFISWOP.icc • Enterprise CMYK.icc • GRACoL2006_Coated1_EFI.icc • ISOCoated.icc • ISOCoated_FOGRA39L_EFI.icc • ISOUncoated_FOGRA29L_EFI.icc • SWOP2006_Coated3_EFI.icc • SWOP2006_Coated5_EFI.icc RGB Profiles: • EFI Fiery RGB Chroma.icc • - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 27
Color Printing 27 Color profiles Add ICC profiles from the User Software DVD The User Software DVD includes a number of ICC profiles that you can add to the C9 Server: For most ICC-aware applications, you must install the files in the Color folder (Windows) or the Library/ColorSync/ Profiles folder - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 28
Color Printing 28 Color profiles Install ColorSync profiles on a Mac OS computer over the network You must log on with Administrator privileges. 1 Select Go > Connect to Server. 2 Type smb:// followed by the IP address of the C9 Server and click Connect. If you cannot locate your C9 Server, contact - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 29
can disable it for a specific job. The ColorWise Off setting for the CMYK/ Grayscale Source option disables calibration (and color management) for CMYK data in a job. You might want to disable calibration for testing purposes, for example. If you defined a custom halftone screen with the Halftone - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 30
WorkStation. Calibrator provides a choice of measurement methods depending on the methods supported by your C9 Server: • ES-1000 or ES-2000 - density is greater than or equal to the target value, this is usually not a problem. If the curves are not smooth, it may be because the printer does not - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 31
setting provides the C9 Server with density measurements of each of the printed colorants, for specific printing conditions (for example, media type). This data, along with the expected density response of the printer, allows the C9 Server to apply corrections to color values that are sent to the - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 32
. Note: Before creating a custom calibration setting and custom output profile, make sure that the printer is calibrated (if calibration is supported on the printer). For information about performing printer calibration, see the documentation that accompanies the printer. When color quality is - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 33
Color Printing 33 Calibration Understanding calibration Calibration generates adjustments to toner densities that account for the difference between the actual toner densities (measurements) and the expected response (target). • Measurements represent the actual color behavior of the printer. • - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 34
from 100% to zero. If the solid density patches (100% cyan, magenta, yellow, or black) look less saturated over time, show the pages to your service technician to determine whether adjusting the printer can improve output. - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 35
Spot-On Color Printing 35 Spot-On The Spot Color Matching print option automatically matches spot colors with their best CMYK equivalents so that spot colors can be simulated using the CMYK colors. However, you may want to adjust the default CMYK equivalents to achieve a better match for your - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 36
Color Printing 36 Spot-On If you select Output profile X and redefine PANTONE 123 from 30%M to 50%M using Spot-On, the output will reflect 50%M when you print a job with Output profile X. If you print a job with Output profile Y, you will get the original value. If you select Output profile X and - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 37
Specialty colors Color Printing 37 Specialty colors A specialty color is an additional color (besides Cyan, Magenta, Yellow, and Black) installed on the printer. Specialty color features on the C9 Server give you access to specialty colors. Either White toner or Clear toner can be installed on the - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 38
as a special spot color. You can create documents with spot colors in a design application that supports spot colors, such as Adobe InDesign or Quark XPress. Microsoft Office applications do not support spot colors. If you cannot create spot colors in your job, you can still apply a specialty - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 39
color name, for example WHITE_INK or CLEAR_INK, that was defined on the printer or another server can be used. Note: Double-byte characters are not supported. Print a job with Clear toner You can print a job with Clear toner that you have specified as a spot color in Adobe InDesign, QuarkXPress, or - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 40
you print a job, you might want to select this setting to print a test print without Clear toner. After you check the output and resolve any problems, you can reprint the job with Clear toner. This practice helps to conserve the Clear toner supply. • Apply Clear to 'Clear' spot color(s) and selected - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 41
colors defined and can be created with an application that does not support an overprinting function. 3 In your application, click File > Print, test print without White toner. After you check the output and resolve any problems, you can reprint the job with White toner. This practice helps to - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 42
Color Printing 42 Specialty colors • Use alternate color for 'White' spot color(s) if present - Substitutes the White spot color with the alternate color defined in the document. White toner is not applied. Use this setting to print a test print and check the placement of the White toner in the - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 43
IEVE in Command WorkStation 1 In Job Center in Command WorkStation, select the job containing the images that you want to adjust. Note: IEVE supports PDF, PostScript, and imposed (.dbp) jobs only. 2 To start IEVE, do one of the following: • Select Actions > Image Enhance Visual Editor. • Right-click - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 44
Color Printing 44 Image Enhance Visual Editor - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 45
6 color options, specifying 21 color patches in Test Page 33 colors, proofing 43 color space 8 ColorWise color management system ICC profile support 6 key features 6 Combine separations option 14 Command WorkStation monitor settings 36 Composite overprint option 15 composites, printing 14, 20 custom - Oki C942dp | C931 C941 C942 - Fiery C9 Server - Color Guide - Page 46
printing 14, 20 sharpness adjustment in IEVE 43 Specialty color 37 Spot color matching option 20 spot colors, CMYK equivalents 20, 35 Spot-On named colors 35 Spot Color Matching 35 Substitute colors option 20 T test page 33 tone adjustment in IEVE 43 transparent objects 16 trapping 9 U Ugra/Fogra
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Fiery
®
C9 Server
Color Printing