background image

1

1-11

Managing color on the EX7750

RGB Source Profile

The RGB 

source profile

 setting allows you to define the characteristics of the RGB 

data in your document so the appropriate color conversion can occur on the EX7750. 
Commonly used monitor color spaces are available from the printer driver and from 
the ColorWise Pro Tools Profile Manager. For special needs, use ColorWise Pro Tools 
to download custom monitor or scanner profiles.

When you specify a setting other than None for the RGB Source Profile, the EX7750 
overrides 

source color space

 definitions or profiles that other color management 

systems may have specified. For example, if you specified a ColorSync System Profile 
on your Mac OS computer, the RGB Source Profile setting overrides it. In cases where 
you do

 not

 want this setting to override another specified source color space, choose 

the None setting.

When you specify a setting other than None for the RGB Source Profile—since the 
color space definitions are overridden—the output from the EX7750 is consistent 
across platforms. The EX7750 RGB Source Profile options are:

EFIRGB

 specifies an EFI-defined color space recommended for users who have no 

detailed information about their RGB data.

sRGB (PC)

 specifies the industry standard definition for a generic Windows 

computer monitor.

Apple Standard

 specifies the definition of all standard Mac OS computer monitors.

Other

 allows you to specify custom RGB source settings. If you choose Other as the 

RGB Source Profile setting, you must choose settings for the Gamma, Phosphors, 
and White Point options. 

Содержание Phaser EX7750

Страница 1: ...OLOR UIDE...

Страница 2: ...ng Guide describes the printing features of the Xerox EX7750 for users who send jobs from their computers The Color Guide provides information on managing the color output of the Xerox EX7750 It expla...

Страница 3: ...roteus RIP While Print Splash and Spot On are registered trademarks of Electronics for Imaging Inc in the U S Patent and Trademark Office and or certain other foreign jurisdictions Bestcolor is a regi...

Страница 4: ...d by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separat...

Страница 5: ...ight or license of any kind is granted You receive no rights or license under any patents copyrights trade secrets trademarks whether registered or unregistered or other intellectual property You agre...

Страница 6: ...NT SHALL EFI AND ITS SUPPLIERS BE LIABLE FOR COST OF PROCUREMENT OF SUBSTITUTE SOFTWARE PRODUCTS OR SERVICES LOST PROFITS OR DATA THIRD PARTY CLAIMS OR ANY SPECIAL INDIRECT RELIANCE CONSEQUENTIAL EXEM...

Страница 7: ...eement will be governed in all respects by the laws of the State of California exclusively as such laws apply to contracts between California residents performed entirely within California The United...

Страница 8: ...This page is intentionally blank...

Страница 9: ...11 CMYK Simulation Profile 1 12 CMYK Simulation Method 1 14 RGB Separation 1 15 Image Smoothing 1 16 Output Profile 1 16 Combine Separations 1 17 PostScript printer driver for Windows and Mac OS 1 17...

Страница 10: ...default profiles 3 3 Using media defined output profiles 3 4 Downloading profiles 3 5 Editing profiles 3 7 Defining profiles 3 8 Color Editor 3 11 Editing profiles 3 11 Undoing CMYK simulation edits 3...

Страница 11: ...g up the DTP41 A 2 Calibrating the DTP41 A 6 Using the X Rite DTP32 densitometer A 9 Setting up the DTP32 A 10 Calibrating the DTP32 A 12 Appendix B Importing Density Measurements Simple ASCII Import...

Страница 12: ...This page is intentionally blank...

Страница 13: ...erever appropriate Illustrations of Windows software may not necessarily reflect the version of Windows that you use About this manual This manual is organized to supply you with key information about...

Страница 14: ...s and Mac OS applications This allows casual users to achieve quality output without knowing about or changing any color settings on the EX7750 For consistent color calibrate the EX7750 on a regular b...

Страница 15: ...lorWise color management ColorWise offers an open color architecture allowing users to customize the EX7750 to meet new printing needs as they arise ColorWise supports ICC profiles which are industry...

Страница 16: ...This page is intentionally blank...

Страница 17: ...n the printer driver Select most ColorWise options as server defaults from the Color Setup application in ColorWise Pro Tools see page 3 35 Defaults can also be set from EX7750 Setup as described in t...

Страница 18: ...so affect the more rarely used Lab XYZ and other calibrated color spaces NOTE For users who are familiar with PostScript 3 color RGB Source Profile affects all CIEBasedABC color spaces if the source s...

Страница 19: ...tScript source color space definition including CMYK The rendering styles associated with the PCL driver do not match those associated with the PostScript driver Pure Black Text Graphics On Off Defaul...

Страница 20: ...11 To use this print option you must choose Other as the RGB Source Profile setting This option is only available with the PostScript driver Other Phosphors Hitachi EBU Hitachi Ikegami NTSC Radius Pi...

Страница 21: ...defined output profiles can be downloaded to the EX7750 using ColorWise Pro Tools For more information about using ColorWise Pro Tools see Chapter 3 This option is only available with the PostScript...

Страница 22: ...well similar to the Photographic rendering style Artwork and graphs in presentations In many cases it can be used for mixed pages that contain both presentation graphics and photographs Saturation Gr...

Страница 23: ...In addition this setting eliminates blasting For some jobs it is preferable to clear this option for example if the page includes gradient fills that use black The following table describes the behavi...

Страница 24: ...ensity of the printer set the Pure Black Text Graphics option to On NOTE This feature is not available with the PCL driver Black Overprint The Black Overprint option allows you to specify whether or n...

Страница 25: ...es of the text or text graphics The option also works with text defined in the RGB color space that is RGB 0 0 0 With Black Overprint Off the border of the text or text graphics is on an edge that has...

Страница 26: ...ations Spot Color Matching and the PANTONE Coated Color Reference The PANTONE Coated Color Reference described in the Fiery Color Reference prints differently depending on the Spot Color Matching sett...

Страница 27: ...n your Mac OS computer the RGB Source Profile setting overrides it In cases where you do not want this setting to override another specified source color space choose the None setting When you specify...

Страница 28: ...For example RGB EPS files will look different from RGB TIFF files With RGB Source set to None PostScript RGB data that contains a source color space definition is converted using the CRD specified by...

Страница 29: ...g is not generally recommended unless you want to bypass the conversion by ColorWise and use another color management system The CMYK Simulation Profile setting you specify depends on the press standa...

Страница 30: ...ponent Replacement GCR level that was specified in the original source document is also preserved Full Source GCR is therefore an excellent simulation technique for the highest quality press proofing...

Страница 31: ...of that device RGB Separation is also useful for prepress applications For example it allows you to experiment with the appearance of an RGB scan under different press printing conditions without havi...

Страница 32: ...Tools Color Editor to achieve particular color effects see page 3 11 If you do so the new customized output profile is applied to all data in the print job Changing the output profile does not affect...

Страница 33: ...ccess the printer driver options described in this section choose Start Settings Printers Windows 2000 or Printers and Faxes Windows XP right click the appropriate printer PPD name and choose Printing...

Страница 34: ...PostScript Printer Driver for Windows This driver is a PostScript 3 printer driver that takes full advantage of the color features of the EX7750 Before you proceed complete the following procedures In...

Страница 35: ...f Update does not appear make sure that Two Way Communication is set up as described in the User Software Installation Guide 5 To specify custom RGB source settings select Other for the RGB Source Pro...

Страница 36: ...inter driver For information about specific applications see the Fiery Color Reference Setting color management print options Choose settings for color print options from the various panes of the Adob...

Страница 37: ...s When RGB Separation is set to Output CMYK data is converted to the selected output profile s CMYK color space ColorSync Color Matching Provides for color conversion on the host computer This option...

Страница 38: ...rayscale from the Print Color menu 3 In the Printer Specific Options menu choose settings for the print options described on page 1 3 If these settings are used regularly click Save Settings to save t...

Страница 39: ...OS TO SET EX7750 COLOR MANAGEMENT OPTIONS FROM MAC OS X V10 2 OR LATER 1 In the Print dialog box choose Printer Features 2 In the Printer Features area choose settings for the print options described...

Страница 40: ...This page is intentionally blank...

Страница 41: ...or USB port on your computer you can quickly measure calibration color patches and download measurements to the EX7750 NOTE To use the ES 1000 with a Mac OS computer you must connect the instrument to...

Страница 42: ...ts and the response expected by the output profile Measurements represent the actual color behavior of the printer Calibration sets are sets of measurements Each output profile contains a calibration...

Страница 43: ...ng optimal toner densities The density is the measure of the light absorbed by a surface By carefully regulating toner densities you obtain consistent printed color Even with a calibrated system toner...

Страница 44: ...r more output profiles For more information about output profiles see page 1 16 Scheduling calibration In general you should calibrate the EX7750 at least once a day depending on the volume of print j...

Страница 45: ...es all color patches should be visible even though they may be very faint in the five percent and two percent range Each color s patch set should show uniform gradation from patch to patch as the colo...

Страница 46: ...ly one user at a time can use Calibrator An error message appears if you try to calibrate when another user is using ColorWise Pro Tools to calibrate Starting Calibrator Start Calibrator from the Colo...

Страница 47: ...Using Calibrator 2 Click Calibrator 3 Use the Calibrator window to perform the calibration method of your choice Procedures for each calibration method are described in subsequent sections of this cha...

Страница 48: ...results of the new measurements with any profile associated with the currently selected calibration set You can also create a custom Comparison Page and save it as a PostScript or Encapsulated PostSc...

Страница 49: ...ofile uses the same target an additional menu called Plot Against appears in the upper right corner of the dialog box It lists all output profiles that use that same calibration set Selecting an outpu...

Страница 50: ...ly selected calibration set Calibrating the EX7750 with the ES 1000 You can use ColorWise Pro Tools in conjunction with the ES 1000 spectrometer to calibrate the EX7750 NOTE Before using ColorWise Pro...

Страница 51: ...tructions on starting Calibrator see page 2 6 2 Choose EFI Spectrometer ES 1000 as the measurement method 3 In the Check Print Settings pane choose the desired calibration set Choose the appropriate c...

Страница 52: ...ate for density inconsistencies on different areas of the page Page Size is automatically set to LTR if the EX7750 is set up for US standards or A4 if the EX7750 is set up for metric standards for 21...

Страница 53: ...calibration cradle the spectrometer will not return accurate measurements 10 Click OK The EFI Spectrometer Measurements dialog box appears Directions for measuring the strips appear in the Status fie...

Страница 54: ...ross hair moves to the next color If the strip is not measured successfully a message directs you to try again 17 Repeat step 13 through step 16 until all the strips have been measured NOTE You must t...

Страница 55: ...calibration set must be associated with one or more output profiles You do not need to make any new associations for the default calibration set since it is already associated with the default output...

Страница 56: ...he specified Page Type and Paper Size options 8 Click Measure 9 If necessary choose the appropriate COM port for the DTP41 from the Available Ports menu Click Start Measurements 10 Insert the measurem...

Страница 57: ...k appears on the circle of the color just read and the Status field indicates the color was measured successfully Click Previous and Next to reverse or advance to another step in the measurement seque...

Страница 58: ...Method pane choose X Rite DTP32 3 In the Check Print Settings pane choose the desired calibration set Choose the appropriate calibration set for the mode and type of media that you will use most ofte...

Страница 59: ...In the dialog box that appears follow the directions for feeding the measurement page through the DTP32 or DTP32HS NOTE For the DTP32HS disregard any instruction regarding the page guide The DTP32HS...

Страница 60: ...ner densities and color combinations produced on two specially designed calibration pages printed from the Control Panel Limits and 30 Match The first VisualCal page Limits and 30 Match provides the b...

Страница 61: ...on and then choose Set Up Calibration If a password is set on the EX7750 enter it and press OK 3 For Calibration Mode select Standard or Expert Expert Mode adds the option to print a Comparison Page s...

Страница 62: ...new values NEW COLOR TEST PAGE Press Enter to print the pages 9 If you are satisfied with the printer s calibration based on the new values select YES from the APPLY CHANGES screen that appears and p...

Страница 63: ...L PANEL 1 From the EX7750 Control Panel access the Calibration menu as described on page 2 21 2 Choose Remove Calibration 3 Select the Media type 4 When prompted verify that you want to proceed with r...

Страница 64: ...This page is intentionally blank...

Страница 65: ...ferences are noted in this chapter The windows and dialog boxes illustrated are Windows versions For information about installing and configuring a connection to ColorWise Pro Tools see the User Softw...

Страница 66: ...device on the EX7750 Output contains printer profiles that describe the printer For more information about output profiles see page 1 16 NOTE Changing the EX7750 default profiles affects all jobs for...

Страница 67: ...formation see Using media defined output profiles on page 3 4 TO SPECIFY A DEFAULT PROFILE 1 Start ColorWise Pro Tools and click Profile Manager The left side of the main Profile Manager window lists...

Страница 68: ...see Chapter 1 The Output profile always has a default profile To change the Output default select a preset profile you want as the default and click Profile Settings Or create a new default under a n...

Страница 69: ...any computer connected to the EX7750 TO DOWNLOAD A PROFILE 1 Start ColorWise Pro Tools and click Profile Manager The left side of the main Profile Manager windows lists the ICC profiles in the defaul...

Страница 70: ...s Output profiles should be profiles only for the printer to which you print Although you can download CMYK printer profiles as Simulation or Output consider how they will be used If you want the EX77...

Страница 71: ...on next to them Locked profiles cannot be deleted but most can be backed up TO BACK UP PROFILES 1 Start ColorWise Pro Tools and click Profile Manager 2 Select the profile on the EX7750 to upload The a...

Страница 72: ...computers before you apply any downloaded or edited profile to a print job that profile must be linked to one of the predefined custom names or you can set the profile as the default for all print job...

Страница 73: ...OTE You can define custom profiles only Default profiles are predefined and cannot be changed 2 Select DIC new in the Simulation list and click Profile Settings or double click DIC new 3 Select the Ap...

Страница 74: ...replaces the preset profile with your own profile In Profile Settings you can also change profile descriptions for all non locked profiles 4 Click OK Simulation 1 now appears under the Appear in Drive...

Страница 75: ...alibration sets see page 2 3 Color Editor Color Editor allows you to customize simulation and output profiles Access Color Editor directly by clicking its icon in the ColorWise Pro Tools main window o...

Страница 76: ...method for which you have created a custom linked simulation that simulation is applied automatically to the job If you choose a simulation method or output profile for which there is no custom linked...

Страница 77: ...R or Full Output GCR mode see page 3 17 Use this dialog box to view or edit profiles The graph allows you to view and manipulate color output values NOTE When you edit an output profile in Custom mode...

Страница 78: ...r two colors at a time allows you to fine tune your adjustments To turn off a color click its Eye icon In the following example cyan and magenta are visible and can be edited 6 To adjust the dot gain...

Страница 79: ...to the brightness are reflected in the curve s 8 To adjust the curves directly click and drag points on the curve or enter numbers into the input and output boxes The graph maps the input percentage...

Страница 80: ...roscale consider including the original name as part of the new target name for example DIC new to help you remember the source of the new target NOTE Preset default profiles are locked and must be sa...

Страница 81: ...choose an output profile with which your edited simulation will be linked from the Link with menu The edited simulation will be linked with the output profile you choose from the Link with menu NOTE...

Страница 82: ...e is 0 the Use Master print option has no effect Undoing CMYK simulation edits Undo the changes you made to CMYK simulations master and linked in the following ways If you have not yet saved your edit...

Страница 83: ...ors can be simulated using the CMYK toner of the printer However you may want to adjust the default CMYK equivalents to achieve a better match for your specific printing conditions Spot On allows you...

Страница 84: ...may switch to a different output profile at any time while working with Spot On NOTE The EX7750 allows only one user connection through Spot On at a time TO START SPOT ON 1 Start ColorWise Pro Tools...

Страница 85: ...ries along with a System library The DIC HKS and TOYO libraries are available with Spot On These factory default libraries appear marked with the default group icon You can also add custom color group...

Страница 86: ...the group name When you open a group all colors in the group are displayed and the group icon changes appearance 2 To close a color group click the icon to the left of the group name or double click...

Страница 87: ...rearrange an entire color group select the desired color group To rearrange an individual color select the desired color Individual spot colors are marked with circular color icons 2 To move the selec...

Страница 88: ...colors based on the same search criteria choose Find Again from the Edit menu Creating custom colors Spot On provides a number of default color groups such as PANTONE and DIC in the color list You can...

Страница 89: ...1 Select the Color Name or specific color you want to edit 2 Type the new name exactly as it appears in the print job documents including uppercase and lowercase characters and spaces as necessary NOT...

Страница 90: ...Select the line in the color list where you want to add the downloaded group 2 Choose Download from the File menu The Select file dialog box appears 3 Locate and select the desired color group and cl...

Страница 91: ...ou can upload a color group to your computer it must be saved to the EX7750 To upload a factory default group copy and paste the group as a new custom group You can then upload the group as desired TO...

Страница 92: ...our intended result Beginning with an approximate color you can adjust the hue saturation and lightness of the color until you achieve a desirable match TO TARGET A COLOR USING SPOT ON COLOR SEARCH 1...

Страница 93: ...within the gamut rather than the out of gamut color You can also click the center patch to enter CMYK values directly For more information see the procedure on page 3 32 3 Use the following techniques...

Страница 94: ...nitor select a profile customized to describe the characteristics of that monitor 4 Continue adjusting the color patch controls and clicking neighbor patches until the desired color appears in the cen...

Страница 95: ...make a printed color patch match a target not the screen simulation of it Printing a Print Pattern of the neighbor color patches allows you to compare the printed patches to the color target Once you...

Страница 96: ...t whole or half percentage The Device Codes option allows you to enter color values between 0 and 255 This option reflects the full range of color values that the EX7750 can actually reproduce and pro...

Страница 97: ...he instrument For information about downloading stored data from the ES 1000 see the documentation that accompanies the instrument TO IMPORT COLOR MEASUREMENTS INTO SPOT ON 1 Install and set up the ES...

Страница 98: ...measured values are imported into the CMYK entry fields 5 When you finish taking color measurements choose Stop from the Instrument menu Spot On closes the connection to the instrument Saving changes...

Страница 99: ...ng settings in the printer driver These default settings can also be overridden using Command WorkStation Command WorkStation LE or Fiery Spooler Color Setup maintains a connection to the EX7750 so ch...

Страница 100: ...box next to the option name Once you make your changes you must click OK or Apply for the changes to take effect Clicking OK sets the new defaults and closes the Color Setup window Clicking Apply sets...

Страница 101: ...output and other colored materials as well as the density of printed ink and toner It uses the density measurements to effectively calibrate the EX7750 Setting up the ES 1000 To use the ES 1000 for ca...

Страница 102: ...Tools Calibrator supports the X Rite DTP41 spectrophotometer a device that measures density and color data The DTP41 communicates directly with the Calibrator application in ColorWise Pro Tools sendin...

Страница 103: ...remove the spacer from the measurement page slot 3 Plug the square end of the interface cable looks like a modular phone plug into the serial interface connection on the side of the X Rite DTP41 Inst...

Страница 104: ...the 9 pin end into the COM1 or COM2 port on the computer and tighten the screws If the available port on your computer is 25 pin you must use the 8 pin to 25 pin adapter For a Mac OS computer connect...

Страница 105: ...e com 5 Use the AC adapter to provide power Plug the small connector on the adapter cable into the power input of the X Rite DTP41 and plug the AC adapter into the power cord Plug the power cord into...

Страница 106: ...panies the X Rite DTP41 Multiple users can be connected to one EX7750 with ColorWise Pro Tools but only one user at a time can use the Calibrator module An error message appears if you try to calibrat...

Страница 107: ...the Get Measurements pane click Measure 5 In the Measurement Options dialog box click Measure 6 Choose the appropriate COM port for the DTP41 from the Available Ports menu The Instructions area displ...

Страница 108: ...7 Click Utilities The Utilities dialog box appears To view version and serial number information click Show DTP 41 Info and then click Done when you are finished 8 Click Calibrate DTP 41 The Instrume...

Страница 109: ...strip through automatically A message appears in the Status area when the calibration is finished 12 Click Done 13 Close the Utilities window This completes DTP41 calibration When the DTP41 requires...

Страница 110: ...O THE COMPUTER 1 Turn off the computer 2 Plug the square end of the interface cable looks like a modular phone plug into the I O port on the side of the X Rite DTP32 3 Attach the connector to the comp...

Страница 111: ...to your computer For information about supported adapters see the X Rite Inc web site www x rite com 4 Plug the small connector on the adapter cable into the side of the X Rite DTP32 and plug the AC a...

Страница 112: ...layed followed by the words INSERT CAL STRIP 4 Insert the X Rite Auto Cal Strip into the 35mm slot on the front of the X Rite DTP32 arrow end first until it stops or the densitometer starts pulling th...

Страница 113: ...e Comments may be on any line in the file and these lines start with a pound sign followed by a space A line with a pound sign followed by any character other than a space has been reserved Comments m...

Страница 114: ...0 0 0800 0 0700 3 0 1000 0 1000 0 1000 0 1000 more data 33 1 6700 1 3400 0 8900 1 6700 34 1 7200 1 4300 0 9300 1 7500 Example of 1D Status T density for EFI 21 patch page This file format is used to s...

Страница 115: ...lumn is the ink toner percentage of the patch The first percentage must be 0 and the last percentage must be 100 The percentages must increase in between EFI 3 EFI ColorWise 2 0 Data type 1DST percnt...

Страница 116: ...This page is intentionally blank...

Страница 117: ...14 CMYK Simulation Profile option 1 4 1 12 color calibration 2 20 Color Charts 2 5 Color Editor dot gain adjustment 3 14 Edit Modes 3 12 importing calibration target 3 13 undoing simulation edits 3 1...

Страница 118: ...d option 1 14 Full Source GCR setting CMYK Simulation Method option 1 14 G Gamma option 1 4 Graphics ICC rendering style 1 6 I ICC profiles backing up 3 7 defined xv defining 3 9 deleting 3 8 descript...

Страница 119: ...images defining source profiles for 1 11 3 2 PostScript and non PostScript conversion 1 12 RGB Separation option 1 5 1 15 RGB Source Profile option 1 2 1 4 1 11 S SAIFF format B 1 to B 3 Saturation I...

Страница 120: ...This page is intentionally blank...

Отзывы: