XEROX 240, 250 User Manual

Splash RPX-i Color Server

Color Guide

45054794 05 May 2006

ONTENTS

CONTENTS

NTRODUCTION

Terminology and conventions

Splash color tools

Splash color correction

ROFILE

Importing proﬁles

ANAGEMENT

Exporting proﬁles

Deleting proﬁles

CMYK press proﬁles

Output proﬁles

CopyCal

Other color management systems

ALIBRATION

Calibrating the Splash RPX-i

Verifying copier color accuracy

AutoGray

Splash Proof

Creating color proﬁle sets

Setting ColorCal preferences

CONTENTS

Editing custom color proﬁles (Be An Expert)

Editing the calibration curve 34

Editing the white point 36

Previewing a proﬁle 38

OLOR

RINT

PTIONS

Splash Color options in the printer drivers

Splash Color default settings on the Splash RPX-i

Splash Color job settings on the Splash RPX-i

Two-Way Communication

Splash Color options

Color Model 46

Printer Mode (Color Mode) 46

RGB Proﬁle 46

Press Simulation 48

CMYK Press Proﬁle 48

Preserve Original GCR 49

Match Spot Colors 49

Use Black Ink Only 49

Overprint Black 49

Rendering Style 49

Output Proﬁle 50

Splash Quality options

Dynamic Image Enhancement 51

Graphics Edge Enhancement 51

Text/Graphics Quality 51

Show Composite Overprints 51

Auto Trapping 52

Splash Proof 52

Gradient Smoothing 52

Apply ColorTuner 52

CONTENTS

Splash Extras options

Separations 53

Print In Own Color 54

Print Progressives 54

Invert Image 54

Print Info Strip 54

Save As TIFF 55

Mirror Image 55

Color Postﬂight 55

Gloss Level option

Color print options in server preferences

Example color print option combinations

OLOR

UNING

Editing colors with ColorTuner

ColorTuner preview

ColorTuner tools

Selecting an area to tune

ColorTuner color modes

Editing in a substitution mode 62

Editing in a global mode 65

Combining global and substitution modes 67

ColorTuner filters

ColorTuner sets

ColorTuner job options

CONTENTS

POT

OLOR

Editing spot colors

Renaming a spot color

Reverting spot color changes

NDEX

DITOR

NTRODUCTION

Terminology and conventions

INTRODUCTION

This document describes how to use the color management tools in the Splash RPX-i Color Server. It also describes the color print options supported by the Splash RPX-i Color Server and the DocuColor 240/250.

This document uses the following terminology and conventions.

Term or convention Refers to

Copier DocuColor 240/250

Mac OS Apple Mac OS 9, Mac OS X

Splash RPX-i Splash RPX-i Color Server

Titles in italics

Windows Microsoft Windows 2000, Windows XP, Windows Server 2003

Splash color tools

The color tools in the Splash RPX-i consist of the following:

Proﬁle management

• easier and more customizable color management. You can also export color proﬁles from the Splash RPX-i. You can manage CMYK proﬁle associations, proﬁle sets for calibration, and associate output proﬁles with speciﬁc media types and screening methods.

•

CopyCal

output of any other color copier.

ColorCal

• most accurate CMYK and RGB color output possible. ColorCal also offers two unique calibration features: AutoGray and Splash Proof. AutoGray adjusts the gray balance of the copier. Splash Proof uses a special set of selected print settings to output a speciﬁc prooﬁng style.

Color Tuner

• document) at the Splash RPX-i without having to reopen and edit the original ﬁle in the original application. You can make color (RGB or CMYK) or grayscale changes globally by adjusting either the overall intensity of a speciﬁc color or the highlights, midtones, or shadows. Direct color substitution changes the selected color to a new color for a single page of a document or the entire document. Smoothed color substitution changes all occurrences of a single color to another color, allowing you to adjust the dominant color in an image.

allows you to import color proﬁles to the Splash RPX-i, providing

allows you to create color proﬁles that enable the copier to simulate the color

allows you to create custom CMYK proﬁles to calibrate the copier to produce the

allows you to make color changes to any document (a single page or the entire

Spot Color Editor

• output for any particular spot color.

Before using any of these tools, you must log on to the Splash RPX-i.

allows you to add and delete spot colors, as well as change the value

INTRODUCTION

Splash color correction

The Splash RPX-i has built-in color correction capabilities that allow you to match the colors of the image on your computer monitor to process inks used on commercial printing presses.

CMYK color correction on the Splash RPX-i is optimized for matching mixed press ink colors. Splash CMYK color correction automatically compensates for differences between press ink colors to accurately simulate the selected press ink proﬁle.

Splash color correction produces the same RGB color results for TIFF and EPS ﬁles. Since color correction is applied by the Splash RPX-i, instead of the application, you can color-correct any print job, whether the job was created with a pre-press application, such as QuarkXPress, or an ofﬁce application, such as Microsoft Word.

Documents that contain both RGB and CMYK graphics are a special problem for color prooﬁng. Correcting color for one type of graphic affects the quality of the other. The Splash RPX-i provides RGB and CMYK color correction that produces accurate, consistent color for both.

ROFILE

ANAGEMENT

PROFILE MANAGEMENT

This chapter describes how to manage color proﬁles and adjust color output on the Splash RPX-i.

Color proﬁles are descriptions of the color characteristics of a device. The Splash RPX-i uses several types of proﬁles to manage color.

•

Output proﬁle

250 in this case. The output proﬁle is associated with a calibration target that deﬁnes the expected density response of the copier.

•

Press proﬁle

device, such as a printing press, that you want the Splash RPX-i to simulate. These color characteristics are speciﬁed in CMYK color space.

describes the color characteristics of a printing device, the DocuColor 240/

, or

simulation proﬁle

, describes the color characteristics of another printing

•

RGB proﬁle

speciﬁed in a source digital image. These colors are speciﬁed in the RGB color space.

The Splash RPX-i comes with several ICC proﬁles installed. The ICC format is an industry standard color proﬁle format developed by the International Color Consortium (ICC) that describes the color capabilities, including the gamut, of a color device based on the differences between an ideal and the current device. The ideal is often provided by the manufacturer as a color reference ﬁle.

is used by the Splash RPX-i to determine the characteristics of the color values

PROFILE MANAGEMENT

Importing proﬁles

You can import an ICC proﬁle to the Splash RPX-i from a ﬁle on your system.

IMPORT

PROFILE

1 Choose Import Color Proﬁle from the Proﬁles menu.

You can import RGB and CMYK proﬁles. A CMYK proﬁle can be used as a press proﬁle or as an output proﬁle.

2Browse to the ﬁle location and select the ﬁle that you want to import.

Information about the selected proﬁle appears at the bottom of the dialog box.

OTE

If you import a proﬁle that has the same ﬁle name as a proﬁle that already exists on the Splash RPX-i, it replaces the existing proﬁle. If you do not want to replace the existing proﬁle, change the ﬁle name before importing.

3 Click Import.

If you selected an RGB proﬁle, the proﬁle is imported.

If you selected a CMYK proﬁle, a dialog box appears that allows you to set the proﬁle type. The proﬁle type determines whether the proﬁle is added to the Splash RPX-i CMYK press proﬁles or to its output proﬁles. For a CMYK press proﬁle, you can further specify whether the proﬁle is classiﬁed as a SWOP, Euroscale, Enhanced, or Custom proﬁle.

For more information about CMYK press proﬁles, see “CMYK press proﬁles” on page 14. For more information about Output Proﬁles, see “Output proﬁles” on page 16.

PROFILE MANAGEMENT

4 Select a proﬁle type and click OK.

For a CMYK press proﬁle, the Color Proﬁles dialog box allows you to specify the imported proﬁle as one of the predeﬁned settings for the CMYK Press Proﬁle option.

For an output proﬁle, the Output Proﬁles dialog box allows you to select whether you want the imported proﬁle to be used by default when printing with a speciﬁc media type and printer mode.

5 If desired, choose the appropriate assignment for the new proﬁle.

6 Click OK.

Exporting proﬁles

You can export any RGB, CMYK, or output proﬁle and save it as a ﬁle.

TO EXPORT A PROFILE

1 Choose Export Color Proﬁle from the Proﬁles menu.

2 Select the proﬁle that you want to export.

3 Enter the ﬁle name or leave the default name.

4Browse to the location in which you want to save the ﬁle.

5 Select Macintosh or Windows compatibility.

If you are going to import the proﬁle to another Splash RPX-i, select Macintosh compatibility.

6 Click Export.

NOTE: If you export a custom proﬁle that you created by editing a standard proﬁle in the

ColorCal Expert tool, the edits you made are recognized only if you import the proﬁle to another Splash RPX-i. They are not recognized by other color management systems, such as ColorSync.

PROFILE MANAGEMENT

Deleting proﬁles

You can delete any custom RGB, CMYK, or output proﬁle from the Splash RPX-i. You cannot delete the proﬁles that are included with the Splash RPX-i by default.

TO DELETE A PROFILE

1 Choose Delete Color Proﬁles from the Proﬁles menu.

2 Select the type of proﬁle: CMYK, RGB, or Output.

All proﬁles of that type that can be deleted are displayed.

3 Select the proﬁle that you want to delete, click Delete, and then click Delete again

to conﬁrm.

4 Click Done to close the window.

PROFILE MANAGEMENT

CMYK press proﬁles

The Splash RPX-i provides standard CMYK press proﬁles. The following are 4D (new style) proﬁles:

•Enterprise CMYK

•Euroscale Coated

•Euroscale Enhanced

•Japanese Press Enhanced

•Japanese Press Inks

• ISO Coated

• ISO Uncoated

•Newsprint Recycled Paper

•Newsprint White Paper

•SWOP Coated

•SWOP Enhanced

•Type D Enhanced

•Type D Inks

• Corel “RGB”

• CGATS SWOP

•Euro-Simulation

•Fogramat

The following are 1D (old style) proﬁles:

• CMYK Enhanced

• CMYK Euroscale

• CMYK SWOP

•Uncalibrated

•Visual Standard EHW

•Visual Standard

You can use these proﬁles as the basis for creating custom proﬁles using the ColorCal Expert tool. For more information, see “Calibration” on page 22.

PROFILE MANAGEMENT

When you print a job to the Splash RPX-i from a client computer with Two-Way Communication enabled in the printer driver, you can set the CMYK Press Proﬁle option (see “CMYK Press Proﬁle” on page 48) to any of these proﬁles or any CMYK proﬁle you have imported.

When you print a job to the Splash RPX-i from a client computer that does not have Two-Way Communication enabled in the printer driver, the selections shown for the CMYK Press Proﬁle option are:

•Printer’s default

•SWOP

•Euroscale

•Enhanced

•Custom 1 - Custom 10

• Color Management Off

These selections correspond to actual CMYK proﬁles residing on the Splash RPX-i. By default, the selections are deﬁned as follows:

• CMYK SWOP: CGATS SWOP

• CMYK Euroscale: Euroscale Coated

• CMYK Enhanced: SWOP Enhanced

•Custom 1: Japanese Press Inks

•Custom 2: Euroscale Enhanced

•Custom 3: CMYK SWOP

•Custom 4: CMYK Euroscale

•Custom 5: CMYK Enhanced

•Custom 6: Euro-Simulation

•Custom 7: Fogramat

•Custom 8: Newsprint - White Paper

•Custom 9: Enterprise CMYK

•Custom 10: Uncalibrated

•Pass Thru (Color Management Off): Visual Standard

PROFILE MANAGEMENT

You can change the deﬁnition of any setting in the Color Proﬁles dialog box. To access this dialog box, choose Color Proﬁles from the Proﬁles menu.

To import a new CMYK proﬁle, click Proﬁle Loader and browse for the ﬁle (see “Importing

proﬁles” on page 11). The new proﬁle is added as a selection in the list of proﬁles available for

each setting.

Output proﬁles

When you print a job to the Splash RPX-i with the Output Proﬁle option (see “Output

Proﬁle” on page 50) set to Printer’s default rather than a speciﬁc proﬁle, the Splash RPX-i

determines the output proﬁle to use based on the Media Type and Printer Mode settings of the job. You can set which output proﬁle to use for each combination of Media Type and Printer Mode.

PROFILE MANAGEMENT

Printer Mode is either Contone or Screened. Media Type is grouped into Paper, OHP (Transparency), and Extra Heavyweight groups, deﬁned as follows:

Group Media type

Paper Plain

Plain (Side 2)

Recycled

Custom 1

Custom 2

Custom 3

Custom 4

Custom 5

OHP Transparency

Transparency Interleave

Extra Heavyweight

Heavyweight 1

Heavyweight 1 (Side 2)

Coated 1

Coated 1 (Side 2)

Labels 1

Tab Stock 1

Heavyweight 2 (177-220 gsm)

Heavyweight 2 (Side 2) (177-220 gsm)

Heavyweight 2 (221-300 gsm)

Heavyweight 2 (Side 2) (221-300 gsm)

Coated 2 (177-220 gsm)

Coated 2 (Side 2) (177-220 gsm)

Coated 2 (221-280 gsm)

Coated 2 (Side 2) (221-280 gsm)

Labels 2

Tab Stock 2

Extra Heavy Weight

PROFILE MANAGEMENT

You can set the associations of output proﬁles with Media Type group and Printer Mode in the Output Proﬁles dialog box. To access this dialog box, choose Output Proﬁles from the Proﬁles menu.

To import a new output proﬁle, click Load Output Proﬁle and browse for the ﬁle (see

“Importing proﬁles” on page 11). The new proﬁle is added as a selection in the list of proﬁles

available for each setting.

NOTE: The settings in the Output Proﬁles dialog box take effect when the Output Proﬁle

setting for a job is set to Printer’s default. You can also select a speciﬁc output proﬁle for a job, although take care to select a proﬁle that is appropriate for the job. For more information, see

“Output Proﬁle” on page 50.

The Splash RPX-i provides versions of output proﬁles that preserve the original GCR settings of CMYK data. You can select one of these proﬁles with the Preserve Original GCR print option (see page 49).

CopyCal

TO USE COPYCAL

PROFILE MANAGEMENT

CopyCal is a standalone application that creates proﬁles that allow the Splash RPX-i to emulate the output of any color printer. CopyCal is started from the Splash RPX-i server application main window. CopyCal and the Splash RPX-i server application can run at the same time. The copier must be running during the entire proﬁling procedure.

CopyCal proﬁles are proﬁles that combine CMYK and RGB color correction into a single selection. Choosing a CopyCal proﬁle in the CMYK proﬁle list overrides any RGB color correction setting for that job.

The following procedure describes how to create a CopyCal proﬁle for a color printer.

1 Open one of the ﬁles in the Splash Extras/CopyCal Target folder in Adobe Acrobat.

For Letter size output, open CopyCalTarget.pdf. For A4 size output, open CopyCalTarget.A4.pdf.

2 Print the ﬁle on the printer that you want to emulate, using the color correction settings that

give you the desired output.

Pages 2, 3, and 4 of the reference target are printed. Print Page 1 of the reference target from the CopyCal application.

3 Click the CopyCal icon in the Splash RPX-i main window.

The CopyCal main window appears.

PROFILE MANAGEMENT

4 Click Calibrate.

5 Select the input tray for printing the calibration target.

The paper size can be 8.5x 11, A4, or larger. Only page sizes large enough to ﬁt the CopyCal target are allowed.

If you select Tray 5/Manual Feed, choose a paper size from the menu that appears and feed that paper size through the bypass tray.

6 Click Next.

7 Select the gloss level and, if you are printing from Tray 5, the media type.

For Tray 5, you must select the media type for printing the calibration target. The default selection is Heavyweight 2 (221-300 gsm). The Tray Default setting is not allowed because the copier setting for Tray 5 does not affect print jobs.

For input trays other than Tray 5, the media type is automatically set to the type of paper in the tray.

8 Click Next.

CopyCal prints Page 1 of the reference target using the normal color correction settings of the copier.

9 Click Scan and follow the instructions that appear.

For step 1 of the on-screen instructions, place Page 1 of the CopyCal reference target facedown on the scanner surface. Match the arrow on the target with the arrow at the back of the copier glass, lining up the short edge of the target with the left side of the copier glass.

If the Color Space option does not appear, contact your system administrator.

If the image size is not recognizable, select the appropriate scan image size on the copier control panel, and press the green Start button on the copier to begin scanning.

PROFILE MANAGEMENT

CopyCal scans the target and determines current color performance based on the acquired image.

NOTE: If you edit the other settings in the Splash template before the scan, you might get an

error message. In this case, repeat the scan sequence.

10 Repeat step 9 for pages 2, 3, and 4.

NOTE: If the pages are placed on the glass quickly, it may not be necessary to repeat steps.

NOTE: If the wrong target was placed on the glass, a CopyCal error message appears, stating

that it could not ﬁnd registration marks. Restart the CopyCal procedure.

11 When prompted, name the proﬁle and save it.

You can now select the CopyCal proﬁle created as a custom CMYK proﬁle. If the proﬁle already exists, CopyCal prompts you to replace the proﬁle. If you do not want to overwrite the existing proﬁle, click Cancel.

Other color management systems

You can disable Splash color correction and use a third-party color management system to correct screen-to-print or process ink-to-print jobs.

NOTE: Using a third-party color management system increases processing time.

The Splash RPX-i provides color proﬁles for Apple’s ColorSync color management software. The Splash ColorSync color proﬁles are located in the Splash:Splash Extras:ColorSync folder. These proﬁles enable ColorSync to print to the Splash RPX-i.

NOTE: Disable Splash Color Correction in the print driver before printing with ColorSync

color management software.

For best results with ColorSync, set the Splash Pass Through proﬁle to Visual Standard with the ColorCal application.

For more information about using ColorSync, see the documentation that accompanies the ColorSync software.

CALIBRATION

The color output on any color copier changes over time, producing inconsistent color from day to day, or even hour to hour. ColorCal adjusts these changes, keeping output consistent. Calibration takes only a few minutes, so the copier’s color output can be tested and recalibrated as often as necessary.

You can calibrate using the scanner on the copier or using an ES-1000 spectrophotometer. connected to the Splash RPX-i.

Proﬁle sets allow you to save multiple calibrations for use with speciﬁc printing conditions and print media.

ColorCal also offers AutoGray calibration to improve the gray balance of the calibrated copier and Splash Proof calibration using speciﬁc print option settings intended for prooﬁng.

In the ColorCal Expert interface, you can create and save custom color proﬁles.

CALIBRATION

Calibrating the Splash RPX-i

This section describes how to calibrate the Splash RPX-i with ColorCal using the scanner on the copier or an ES-1000 spectrophotometer connected to the Splash RPX-i. ColorCal runs only on the Splash RPX-i.

For optimal color printing results, calibrate the copier at least once daily. Calibrate several times a day during heavy use.

TO CALIBRATE THE SPLASH RPX-I WITH COLORCAL

1 If you are using an ES-1000 spectrophotometer, make sure it is installed and connected to

the Splash RPX-i.

2 With the copier running, click the ColorCal icon in the toolbar of the Splash RPX-i

main window.

The ColorCal main window appears.

NOTE: You can run the Splash RPX-i server application during calibration. However, you

should stop all processing.

CALIBRATION

3 If you are using an ES-1000 to calibrate, choose Preferences from the ColorCal menu.

Otherwise, skip to step 5.

By default, the calibration procedure uses the copier’s scanner. To use an ES-1000, you must change a ColorCal preference.

4 Select Use ES-1000 and click OK.

The ES-1000 is now the default method for calibration, AutoGray, and Splash Proof.

5 Choose Calibrate Scanner from the Splash menu.

If you are using ColorCal for the ﬁrst time, or if the copier has recently been serviced, we recommend that you calibrate the scanner.

Calibrating the scanner adjusts the copier to compensate for scanning differences that could affect calibration quality. This command affects ColorCal operation only. It does not affect the scanning capability of the copier for other scanning operations.

6 In the ColorCal main window, click Run Calibration.

7 If you have set the ColorCal preference for the calibration to affect only a selected proﬁle

set, a list of the proﬁle sets appears. Choose a proﬁle set and click Next.

For more information about the ColorCal preference that determines which proﬁle sets are affected by calibration, see “Setting ColorCal preferences” on page 33.

8 Select the input tray for printing the calibration target.

If you select Tray 5, choose the paper size as well. For input trays other than Tray 5, the page size is automatically set to the size of the paper in the tray.

9 Click Next.

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