Xerox EX7750 User Manual

#OLOR'UIDE

About the Documentation

This manual is part of a set of Xerox EX7750 documentation that includes the following manuals for users and system administrators. Most are available as Acrobat PDF (Portable Document Format) ﬁles on the User Documentation CD.

• The

Quick Start Guide

and printing. It also describes how to access the Adobe Acrobat PDF ﬁles on the User Documentation CD.

• The

User Software Installation Guide

User Software CD and enable users to print to the Xerox EX7750.

• The

Conﬁguration Guide

Xerox EX7750 for the supported platforms and network environments. It also includes guidelines for setting up network servers to provide printing services to users.

• The

Printing Guide

who send jobs from their computers.

• The

Color Guide

Xerox EX7750. It explains how to take advantage of the ColorWise management system, as well as features in ColorWise Pro Tools.

• The

Fiery Color Reference

the color output of the Xerox EX7750. In addition, it offers information on printing color documents from popular Microsoft Windows and Apple Mac OS applications.

summarizes the steps for conﬁguring the Xerox EX7750

describes how to install software from the

explains basic conﬁguration and administration of the

describes the printing features of the Xerox EX7750 for users

provides information on managing the color output of the

addresses concepts and issues associated with managing

color

• The

Job Management Guide

and how you can use them to monitor and control jobs on the Xerox EX7750. This manual is intended for a user with the necessary access privileges who monitors and manages job ﬂow and troubleshoots problems that may arise.

•

Customer Release Notes

for some of the problems you may encounter.

explains the functions of the job management utilities,

provide last-minute product information and workarounds

This product documentation is protected by copyright, and all rights are reserved. No part of it may be reproduced or transmitted in any form or by any means for any purpose without express prior written consent from Electronics for Imaging, Inc. (“EFI”), except as expressly permitted herein. Information in this document is subject to change without notice and does not represent a commitment on the part of EFI.

This product documentation is provided in conjunction with the EFI software (“Software”) and any other EFI product described in this documentation. The Software is furnished under license and may only be used or copied in accordance with the terms of the Software License Agreement set forth below.

Patents

This product may be covered by one or more of the following U.S. Patents:

4,716,978, 4,828,056, 4,917,488, 4,941,038, 5,109,241, 5,170,182, 5,212,546, 5,260,878, 5,276,490, 5,278,599, 5,335,040, 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, 5,666,436, 5,745,657, 5,760,913, 5,799,232, 5,818,645, 5,835,788, 5,859,711, 5,867,179, 5,940,186, 5,959,867, 5,970,174, 5,982,937, 5,995,724, 6,002,795, 6,025,922, 6,035,103, 6,041,200, 6,065,041, 6,112,665, 6,116,707, 6,122,407, 6,134,018, 6,141,120, 6,166,821, 6,173,286, 6,185,335, 6,201,614, 6,215,562, 6,219,155, 6,219,659, 6,222,641, 6,224,048, 6,225,974, 6,226,419, 6,238,105, 6,239,895, 6,256,108, 6,269,190, 6,271,937, 6,278,901, 6,279,009, 6,289,122, 6,292,270, 6,299,063, 6,310,697, 6,321,133, 6,327,047, 6,327,050, 6,327,052, 6,330,071, 6,330,363, 6,331,899, 6,340,975, 6,341,017, 6,341,018, 6,341,307, 6,347,256, 6,348,978, 6,356,359, 6,366,918, 6,369,895, 6,381,036, 6,400,443, 6,429,949, 6,449,393, 6,476,927, 6,490,696, 6,501,565, 6,519,053, 6,539,323, 6,543,871, 6,546,364, 6,549,294, 6,549,300, 6,550,991, 6,552,815, 6,559,958, 6,572,293, 6,590,676, 6,606,165, 6,633,396, 6,636,326, 6,643,317, 6,647,149, 6,657,741, 6,662,199, 6,678,068, 6,707,563, 6,741,262, 6,748,471, 6,753,845, 6,757,436, 6,757,440, RE33,973, RE36,947, D341,131, D406,117, D416,550, D417,864, D419,185, D426,206, D439,851, D444,793.

Trademarks

Auto-Count, ColorCal, ColorWise, Command WorkStation, DocBuilder Pro, EDOX, EFI, Fiery, the Fiery logo, Fiery Driven, the Fiery Driven logo, Fiery Spark, MicroPress, OneFlow, Printcafe, PrinterSite, PrintMe, Prograph, Proteus, 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 registered trademark of Best GmbH in the U.S. Patent and Trademark Ofﬁce.

ADS, AutoCal, Balance, Build, Digital StoreFront, DocStream, Fiery Link, Fiery Prints, FreeForm, Hagen, Intelligent Device Management, Logic, PrintFlow, PrintSmith, PrintSmith Site, PSI, PSI Flexo, RIPChips, Scan, SendMe, VisualCal, WebTools, the EFI logo, the Fiery Prints logo, and Essential to Print are trademarks of Electronics for Imaging, Inc. Best, the Best logo, Colorproof, PhotoXposure, Remoteproof, and Screenproof are trademarks of Best GmbH.

All other terms and product names may be trademarks or registered trademarks of their respective owners, and are hereby acknowledged.

Legal Notiﬁcations

APPLE COMPUTER, INC. (“APPLE”) MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE. APPLE DOES NOT WARRANT, GUARANTEE, OR MAKE ANY REPRESENTATIONS REGARDING THE USE OR THE RESULTS OF THE USE OF THE APPLE SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY, CURRENTNESS, OR OTHERWISE. THE ENTIRE RISK AS TO THE RESULTS AND PERFORMANCE OF THE APPLE SOFTWARE IS ASSUMED BY YOU. THE EXCLUSION OF IMPLIED WARRANTIES IS NOT PERMITTED BY SOME STATES. THE ABOVE EXCLUSION MAY NOT APPLY TO YOU.

IN NO EVENT WILL APPLE, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE TO YOU FOR ANY CONSEQUENTIAL, INCIDENTAL, OR INDIRECT DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, AND THE LIKE) ARISING OUT OF THE USE OR INABILITY TO USE THE APPLE SOFTWARE, EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU.

Apple’s liability to you for actual damages from any cause whatsoever, and regardless of the form of the action (whether in contract, tort [including negligence], product liability, or otherwise), will be limited to $50.

PANTONE Publications for accurate color. PANTONE® and other Pantone, Inc. trademarks are the property of Pantone, Inc. © Pantone, Inc., 2001. Pantone, Inc. is the copyright owner of PANTONE color data and/or software.

This product includes software developed by the Apache Software Foundation (www.apache.org).

Colors displayed in the Software or in the documentation may not match PANTONE-identiﬁed standards. Consult current PANTONE Color

Part Number: 45042986 10 December 2004

FCC Information

WARNING: FCC Regulations state that any unauthorized changes or modiﬁcations to this equipment not expressly approved by the manufacturer could void the user’s authority to operate this equipment.

Refer to the Class Compliance sticker afﬁxed to the back of your Fiery (or, in the case of embedded systems, to the sticker afﬁxed to the print engine) to identify the appropriate classiﬁcation (A or B, below) for this product.

Class A Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause interference, in which case the user will be required to correct the interference at his own expense.

Industry Canada Class A Notice

This Class A digital apparatus complies with Canadian ICES-003.

Avis de Conformation Classe A de l’Industrie Canada

Cet appareil numérique de la Classe A est conforme à la norme NMB-003 du Canada.

Class B Declaration of Conformity

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television reception, which can be determined 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 separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

In order to maintain compliance with FCC regulations, shielded cables must be used with this equipment. Operation with non-approved equipment or unshielded cables is likely to result in interference to radio and TV reception. The user is cautioned that changes and modiﬁcations made to the equipment without the approval of the manufacturer could void the user’s authority to operate this equipment.

Industry Canada Class B Notice

This Class B digital apparatus complies with Canadian ICES-003.

Avis de Conformation Classe B de l’Industrie Canada

Cet appareil numérique de la Classe B est conforme à la norme NMB-003 du Canada.

RFI Compliance Notice

This equipment has been tested concerning compliance with the relevant RFI protection requirements both individually and on a system level (to simulate normal operation conditions). However, it is possible that these RFI Requirements are not met under certain unfavorable conditions in other installations. It is the user who is responsible for compliance of his particular installation.

Dieses Gerät wurde sowohl einzeln als auch in einer Anlage, die einen normalen Anwendungsfall nachbildet, auf die Einhaltung der Funkentstörbestimmungen geprüft. Es ist jedoch möglich, dass die Funkentstörbestimmungen unter ungünstigen Umständen bei anderen Gerätekombinationen nicht eingehalten werden. Für die Einhaltung der Funkentstörbestimmungen einer gesamten Anlage, in der dieses Gerät betrieben wird, ist der Betreiber verantwortlich.

Compliance with applicable regulations depends on the use of shielded cables. It is the user who is responsible for procuring the appropriate cables.

Die Einhaltung zutreffender Bestimmungen hängt davon ab, dass geschirmte Ausführungen benützt werden. Für die Beschaffung richtiger Ausführungen ist der Betreiber verantwortlich.

CE Marking (Declaration of Conformity)

This product complies with the following EU directives: 89/336/EEC, 73/23/EEC, and 93/68/EEC directives. This declaration is valid for the area of the European Union.

SOFTWARE LICENSE AGREEMENT

PLEASE READ THIS SOFTWARE LICENSE AGREEMENT (“LICENSE AGREEMENT”) CAREFULLY. THIS LICENSE AGREEMENT IS A LEGAL AGREEMENT BETWEEN YOU AND ELECTRONICS FOR IMAGING, INC. (“EFI”) REGARDING THE EFI SOFTWARE (“SOFTWARE”). BY INSTALLING, COPYING OR OTHERWISE USING THE SOFTWARE, YOU AGREE TO BE BOUND BY THIS LICENSE AGREEMENT. IF YOU DO NOT AGREE, DO NOT INSTALL, COPY, OR OTHERWISE USE THE SOFTWARE AND YOU MAY RETURN THE UNUSED SOFTWARE, WITH PROOF OF PAYMENT, FOR A FULL REFUND TO THE PLACE OF PURCHASE WITHIN THIRTY (30) DAYS OF THE PURCHASE DATE.

License

EFI grants you a limited, non-exclusive license to use the Software solely in accordance with the terms and conditions of this License Agreement, solely as speciﬁed in the EFI product documentation, and solely with the product(s) speciﬁed in the EFI product documentation (“Product(s)”).

The term “Software” as used in this License Agreement shall mean the EFI software and all documentation, downloads, on-line materials, bug ﬁxes, patches, releases, release notes, updates, upgrades, technical support materials, and information regarding the EFI software. The terms and conditions of this License Agreement shall apply to and govern your use of any such item to the extent that EFI does not provide a separate or additional written license agreement for such item.

The Software is licensed, not sold. You may use the Software solely for the purposes described in the EFI product documentation. You may not rent, lease, sublicense, lend, or otherwise distribute the Software or use the Software in any time sharing, service bureau, or similar arrangement.

You may not make or have made, or permit to be made, any copies of the Software or portions thereof, except one (1) backup or archive copy for the purposes permitted in this License Agreement; provided, however, that under no circumstances may you make or have made, or permit to be made, any copies of any portion of the Software that is included on any portion of the controller board or hardware of a product. You agree not to localize, translate, disassemble, decompile, decrypt, reverse engineer, discover the source code of, modify, create derivative works of, or in any way change any part of the Software.

Intellectual Property Rights

You acknowledge and agree that all rights, title, and interest, including all intellectual property rights, in and relating to the Software, all EFI Products, and all copies, modiﬁcations, and derivative works thereof, are solely owned by and shall remain with EFI and its suppliers. Except for the express limited license granted in this License Agreement, no right 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 agree not to adopt, register, or attempt to register any EFI trademark or trade name or any confusingly similar mark, URL, internet domain name, or symbol as your own name or the name of your afﬁliates or products, and agree not to take any other action which impairs or reduces the trademark rights of EFI or its suppliers.

Conﬁdentiality

The Software is conﬁdential, proprietary information of EFI and you may not distribute or disclose the Software. You may, however, permanently transfer all of your rights under this License Agreement to another person or legal entity provided that: (1) such a transfer is authorized under all applicable export laws and regulations, including the laws and regulations of the United States, including the United States Export Administration Regulations; (2) you transfer to the person or entity all of the Software (including all copies, updates, upgrades, media, printed documentation, and this License Agreement); (3) you retain no copies of the Software, including no backup, archival, or other copies, however stored; and (4) the recipient agrees to all of the terms and conditions of this License Agreement.

Te rmination

Unauthorized use, copying, or disclosure of the Software, or any breach of this License Agreement will result in automatic termination of this license and will make available to EFI other legal remedies. In the event of termination, you must destroy all copies of the Software and all component parts thereof. All provisions of this License Agreement relating to conﬁdentiality of the Software, disclaimers of warranties, limitation of liability, remedies, damages, governing law, jurisdiction, venue, and EFI’s intellectual property rights shall survive any termination of this license.

Limited Warranty and Disclaimer

EFI warrants that the Software, if used as speciﬁed in the EFI product documentation, will perform substantially in accordance with the EFI product documentation for a period of ninety (90) days from the date of receipt. EFI makes no warranty or representation that the Software will meet your speciﬁc requirements, that the operation of the Software will be uninterrupted, secure, fault-tolerant, or error free, or that all defects in the Software will be corrected. EFI makes no warranty, implied or otherwise, regarding the performance or reliability of any other Products or services or any third party products (software or hardware) or services. THE INSTALLATION OF ANY THIRD PARTY PRODUCTS OTHER THAN AS AUTHORIZED BY EFI WILL VOID THIS WARRANTY. USE, MODIFICATION, AND/OR REPAIR OF THE SOFTWARE OR AN EFI PRODUCT OTHER THAN AS AUTHORIZED BY EFI WILL VOID THIS WARRANTY. FURTHER, THIS LIMITED WARRANTY IS VOID IF A PROBLEM WITH THE SOFTWARE ARISES FROM ACCIDENT, ABUSE, MISAPPLICATION, ABNORMAL USE, VIRUS, WORM, OR SIMILAR CIRCUMSTANCE.

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Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, YOU AGREE THAT THE ENTIRE LIABILITY OF EFI AND ITS SUPPLIERS FOR ALL CLAIMS RELATED TO ANY SOFTWARE, PRODUCT, SERVICES, AND/OR THIS LICENSE AGREEMENT, REGARDLESS OF THE FORM OF ACTION (WHETHER IN CONTRACT, TORT, UNDER STATUTE, OR OTHERWISE), SHALL BE LIMITED TO THE AMOUNT PAID BY YOU, IF ANY, FOR THE EFI SOFTWARE. YOU AGREE THAT SUCH AMOUNT IS SUFFICIENT TO SATISFY THE ESSENTIAL PURPOSE OF THIS LICENSE AGREEMENT AND THAT SUCH A LIABILITY IS A FAIR AND REASONABLE ESTIMATE OF ANY LOSS AND DAMAGE LIKELY TO BE SUFFERED IN THE EVENT OF ANY WRONGFUL ACT OR OMISSION BY EFI AND/OR ITS SUPPLIERS. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT 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, EXEMPLARY, PUNITIVE, OR INCIDENTAL DAMAGES, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, RELATED TO ANY SOFTWARE, PRODUCT, SERVICES AND/OR THIS LICENSE AGREEMENT. THIS LIMITATION SHALL APPLY EVEN IF EFI AND ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. YOU AGREE THAT THE PRICE OF THE EFI SOFTWARE REFLECTS THIS ALLOCATION OF RISK. YOU ACKNOWLEDGE AND AGREE THAT THE FOREGOING LIMITATIONS OF LIABILITY AND DISCLAIMERS FORM AN ESSENTIAL ELEMENT OF THIS LICENSE AGREEMENT, WITHOUT WHICH EFI WOULD NOT HAVE LICENSED THE EFI SOFTWARE TO YOU.

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You are hereby notiﬁed that Adobe Systems Incorporated, a Delaware corporation located at 345 Park Avenue, San Jose, CA 95110-2704 (“Adobe”) is a thirdparty beneﬁciary to this License Agreement to the extent that this License Agreement contains provisions which relate to your use of any software, font programs, typefaces, and/or trademarks licensed or supplied by Adobe. Such provisions are made expressly for the beneﬁt of Adobe and are enforceable by Adobe in addition to EFI. ADOBE WILL HAVE NO LIABILITY WHATSOEVER TO YOU FOR ANY ADOBE SOFTWARE OR TECHNOLOGY LICENSED HEREUNDER.

Export Restrictions

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U.S. Government Restricted Rights

Use, duplication, or disclosure of the Software by the United States Government is subject to restrictions as set forth in FAR 12.212 or DFARS 227.7202-3 -

227.7202-4 and, to the extent required under U.S. federal law, the minimum restricted rights as set out in FAR 52.227-14, Restricted Rights Notice (June 1987) Alternate III(g)(3) (June 1987) or FAR 52.227-19 (June 1987). To the extent any technical data is provided pursuant to the Agreement, such data is protected per FAR 12.211 and DFARS 227.7102-2 and to the extent explicitly required by the U.S. Government, is subject to limited rights as set out in DFARS 252.227.7015 (November 1995) and DFARS 252.227-7037 (September 1999). In the event that any of the above referenced agency regulations are modiﬁed or superseded, the subsequent equivalent regulation shall apply. The name of the Contractor is Electronics for Imaging, Inc.

Governing Law and Jurisdiction

The rights and obligations of the parties related to this License Agreement 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 Nations Convention on Contracts for the International Sale of Goods and any other similar convention does not apply to this License Agreement. For all disputes related to the Software, Products, Services, and/or this License Agreement, you consent to the exclusive personal jurisdiction and venue of the state courts in San Mateo County, California and the federal court for the Northern District of California.

General

This Agreement is the entire agreement held between us and supersedes any other communications or advertising with respect to the Software, Products, Services, and any other subject matter covered by this License Agreement. If any provision of the License Agreement is held invalid, such provision shall be deemed modiﬁed to the extent necessary to be enforceable and the other provisions in this License Agreement shall continue in full force and effect.

If you have any questions, see the EFI web site at www.eﬁ.com.

Electronics for Imaging, Inc. 303 Velocity Way Foster City, CA 94404 USA

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Contents

About the Documentation

Introduction

About this manual

Key features of ColorWise

Chapter 1: EX7750 Color Management

Managing color on the EX7750

Rendering Style 1-6

Pure Black Text/Graphics 1-7

Black Overprint 1-8

Spot Color Matching 1-9

RGB Source Proﬁle 1-11

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

Setting color management print options for Windows 1-18

Adobe PostScript printer driver for Mac OS 1-20

xiii

xiv

1-1

1-17

Chapter 2: Color Calibration

An overview of calibration

Understanding calibration

How calibration works 2-3

Scheduling calibration 2-4

Checking calibration status 2-5

2-2

2-3

x Contents

Using Calibrator

Starting Calibrator 2-6

Expert Mode 2-8

Restoring default calibration measurements 2-10

Calibrating the EX7750 with the ES-1000

Calibrating the EX7750 with the DTP41

Calibrating the EX7750 with the DTP32 or DTP32HS

Calibrating from the Control Panel using VisualCal

Limits and 30% Match 2-20

Gray Balance 2-21

Chapter 3: ColorWise Pro Tools

Proﬁle Manager

Setting 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

Editing proﬁles 3-11

Undoing CMYK simulation edits 3-18

Checking edited proﬁles 3-18

2-6

2-10

2-14

2-18

2-20

3-2

3-11

Using Spot-On

Starting Spot-On 3-20

Using the Spot-On main window 3-21

Working with existing colors 3-23

Creating custom colors 3-24

Downloading custom color groups 3-26

Uploading custom color groups 3-27

Editing color values 3-28

Using a measurement instrument to target colors 3-33

Saving changes and exiting Spot-On 3-34

Color Setup

Setting default ColorWise options 3-35

3-19

3-35

xi Contents

Appendix A: Color Measurement Instruments

Using the EFI Spectrometer ES-1000

Setting up the ES-1000 A-1

Calibrating the ES-1000 A-2

Using the X-Rite DTP41 spectrophotometer

Setting up the DTP41 A-2

Calibrating the DTP41 A-6

Using the X-Rite DTP32 densitometer

Setting up the DTP32 A-10

Calibrating the DTP32 A-12

Appendix B: Importing Density Measurements

Simple ASCII Import File Format (SAIFF)

Example of 1D Status T density for EFI 34 patch page B-2

Example of 1D Status T density for EFI 21 patch page B-2

Example of 1D Status T density for an arbitrary page B-3

Index

A-1

A-2

A-9

B-1

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xiii About this manual

Introduction

This manual explains how to manage color output on the Xerox EX7750, and provides information on calibration and color proﬁles.

This manual is part of a set of documentation that includes manuals for users and system administrators. The other manuals are available at your site—see them for a complete description of your Xerox EX7750.

OTE

The term “EX7750” is used in this manual to refer to the Xerox EX7750. The

term “printer” is used to refer to the Phaser 7750. The name “Aero” is used in illustrations to represent the EX7750. The term “Windows” is used to refer to Windows 2000 and Windows XP, wherever 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 managing the color output of your EX7750.

• Chapter 1 describes the EX7750 print options and how to get the best color results.

• Chapter 2 discusses various methods of calibrating the EX7750.

• Chapter 3 describes the features of ColorWise Pro Tools. ColorWise Pro Tools include Proﬁle Manager, used to manage color proﬁles on the EX7750, and Color Editor, which allows you to customize simulation and output proﬁles. This chapter also describes Spot-On®, which allows you to deﬁne CMYK equivalents for spot colors.

• Appendix A provides information about setting up and calibrating color measurement instruments.

xiv Introduction

• Appendix B describes the Simple ASCII File Format (SAIFF), which you can use to import toner density measurements from measurement devices.

• The

Fiery Color Reference

proﬁle

—that appear throughout this manual. Color terms and concepts such as “color space,” “spot color,” “gamut,” and “source proﬁle” are used throughout this manual. If you are new to desktop color, or if any terms are unfamiliar, consult the Glossary.

Glossary deﬁnes words in bold—for example,

Key features of ColorWise

output

ColorWise

designed to provide both casual and expert users with the best color output for a variety of purposes. The ColorWise default settings provide high-quality out-of-box color from many Windows 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 basis. ColorWise Pro Tools includes an easy-to-use calibrator that allows you to calibrate using a

spectrophotometer

ColorWise features allow you to modify printing results. Depending on your particular needs, you can:

•Set the behavior of press standards.

•Match PANTONE and other four-color press conditions or when printed using presses with extra, custom plates.

•Select a printing. CRDs allow for rich, saturated printing of accurate printing of photographs; and relative or absolute colorimetric rendering for specialized needs.

is the

color management system (CMS)

densitometer

CMYK

printing to emulate

spot colors

color rendering dictionary

built into the EX7750 and

(see Chapter 2).

DIC, Euroscale

for the best match when printed using

(CRD), also called a rendering style, for

presentation graphics

, and

SWOP

offset

RGB

; smooth,

xv Key features of ColorWise

•Deﬁne the source of incoming RGB color data for better screen matching and provide for better color conversion of RGB data with no source information.

•Deﬁne whether RGB data is converted into the full gamut of the printer or is ﬁrst converted into the gamut of another device, such as a press standard. This feature is helpful for making one device behave like another. It is also useful for evaluating the appearance of the RGB ﬁle under different printing conditions without having to reprocess the RGB data each time.

ColorWise 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 standard color proﬁles that describe the color behavior of a device. Downloading ICC proﬁles to the EX7750 enables the EX7750 to simulate a custom press (or another printer), as well as accurately print colors from a particular monitor or a scanner. In addition, you can create customized ICC proﬁles for the printer.

ColorWise also allows you to use any

Status T

densitometer by importing data in a standard ﬁle format (see Appendix B). In this case, it is important to note that the quality of the instrument used determines the quality of the

calibration

This page is intentionally blank.

1-1 Managing color on the EX7750

Chapter 1: EX7750 Color Management

The following sections describe the options available from the management system and explain how to customize the color settings for your particular needs. They provide descriptions of the preset ColorWise default settings and cover additional options for users who need to customize ColorWise.

For information about The section also contains information on the capabilities of printer drivers and instructions for setting color options with the PostScript drivers for Windows and Mac OS computers.

OTE

Many of the color management options described in this chapter are only

available with the PostScript driver, not the PCL driver.

PostScript

Level 2 or 3 printer drivers, see page 1-17.

ColorWise

color

Managing color on the EX7750

To modify EX7750 printing behavior, do any of the following:

•Select ColorWise options for an individual print job using menus that appear in 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 the subsequent print jobs unless you override them.

Conﬁguration Guide

. These defaults will apply to all

•Select some ColorWise options, particularly default

calibration options, from ColorWise Pro Tools. These options include default Simulation Proﬁle (see page 1-12), CMYK Simulation Method (see page 1-14), Appear in Driver as (see page 3-8), default Source Proﬁle (see page 1-11), RGB Separation (see page 1-15), and associated calibration set (see page 2-4).

Applications can generate color data for the EX7750 in many different The most common type of color data produced from while prepress applications generally produce also generate page may contain a mix of RGB, CMYK, and spot colors. The EX7750 allows users to

spot colors

, such as PANTONE colors. To complicate matters, a single

CMYK

ICC proﬁle

ofﬁce applications

data. Desktop applications can

settings and

color spaces

is RGB,

1-2 EX7750 Color Management

control the printing of these mixed-color documents with features that apply speciﬁcally to RGB, CMYK, or spot color data. EX7750 color management generates CMYK data to be sent to the printer.

The following diagram illustrates the print options in the EX7750 color management process that affect color data conversions. You can access these print options when you send a print job to the EX7750. Most of these options and settings are described in subsequent sections of this chapter.

RGB data

CMYK data

Spot color data

RGB Source Proﬁle Gamma Phosphors White Point

Rendering Style (CRD) Black Overprint Brightness Pure Black Text/Graphics RGB Separation Output proﬁle

CMYK Simulation Proﬁle CMYK Simulation Method Black Overprint Brightness Pure Black Text/Graphics Combine Separations Output proﬁle

Spot Color Matching

RGB

Source Proﬁle

is the only color option that applies strictly to RGB color data.

EX7750

color processor

Color data sent to printer

The other options that affect RGB color also affect the more rarely used Lab, XYZ, and other calibrated color spaces.

OTE

For users who are familiar with PostScript 3 color, RGB Source Proﬁle affects all CIEBasedABC color spaces (if the source space is RGB). If you send CMYK data to the EX7750 in CIEBasedDEFG format, for example, by choosing PostScript Color Management in Adobe Photoshop, the EX7750 Rendering Style selection—which normally affects only RGB data—will also affect this CMYK data.

1-3 Managing color on the EX7750

You can specify settings for the following options by selecting print options when you send a job to the EX7750. Some can also be set as defaults by the administrator during EX7750 Setup or using ColorWise Pro Tools. Settings speciﬁed using print options override the defaults.

EX7750 color print option What it does

Brightness

85% Lightest to 115% Darkest

Color Mode (Mac OS)

CMYK/Grayscale or

Print Mode (Windows, PS driver)

Standard Color/Expert Color/Grayscale or

Print Mode (Windows, PCL driver)

CMYK/Grayscale

Rendering Style

Photographic/Presentation/Relative Colorimetric/Absolute Colorimetric (Default set at Setup or with ColorWise Pro Tools)

Pure Black Text/Graphics

On/Off (Default set at Setup or with ColorWise Pro Tools)

Black Overprint

Off/Text/Text & Graphics (Default set at Setup or with ColorWise Pro Tools)

Spot Color Matching

On/Off (Default set at Setup or with ColorWise Pro Tools)

Performs a color adjustment on all color channels to make the printed output lighter or darker.

Speciﬁes the output color space of the job. Select CMYK, Standard Color, or Expert Color for a full-color document.

Applies a EX7750 color rendering dictionary

page 1-6), or to any incoming data with a PostScript source color space

deﬁnition, including CMYK. The rendering styles associated with the PCL driver do not match those associated with the PostScript driver.

The On setting optimizes the quality of black text and line art output (see

page 1-7). This option is only available with the PostScript driver.

Speciﬁes whether to overprint black text or black text and graphics placed on colored backgrounds. Overprinting colored backgrounds eliminates white gaps and reduces halo effects or misregistration of colors (see page 1-8). This option is only available with the PostScript driver.

The On setting enables EX7750-deﬁned matching of spot colors to their best CMYK equivalents.You can use Spot-On to manage and edit these spot color matches (see page 3-19). Off instructs the EX7750 to match color output to a CMYK combination speciﬁed by the source application for the document (see

page 1-9). This option is only available with the PostScript driver.

(CRD) to RGB data (see

1-4 EX7750 Color Management

EX7750 color print option What it does

RGB Source Proﬁle

EFIRGB/sRGB (PC) /Apple Standard/Other/ Source 1-10/Off (Default set at Setup or with ColorWise Pro Tools)

(Other) Gamma

1.0/1.2/1.4/1.6/1.8/2.0/2.2/2.4/2.6/2.8/3.0 (Default set at Setup or with ColorWise Pro Tools)

(Other) White Point

5000 K (D50)/5500 K/6500 K (D65)/ 7500 K/9300 K (Default set at Setup or with ColorWise Pro Tools)

(Other) Phosphors

Hitachi EBU/Hitachi-Ikegami/NTSC/ Radius Pivot/SMPTE/Trinitron (Default set at Setup or with ColorWise Pro Tools)

CMYK Simulation Proﬁle

SWOP-Coated/DIC/Euroscale/ Simulation 1-10/Match Copy/None (Default set at Setup or with ColorWise Pro Tools)

Applies an RGB source space deﬁnition to RGB data (see page 1-11). If you choose the Other setting, you must also specify particular settings for Gamma, Phosphors, and White Point. See the corresponding options in this table. This option, along with Gamma, Phosphors, and White Point, only affects DeviceRGB or calibrated RGB color spaces. This option is only available with the PostScript driver.

Applies the speciﬁed gamma value to the RGB source space deﬁnition (see

page 1-11). To use this print option, you must choose Other as the RGB

Source Proﬁle setting. This option is only available with the PostScript driver.

Applies the speciﬁed white point value to the RGB source color space deﬁnition (see page 1-11). To use this print option, you must choose Other as the RGB Source Proﬁle setting. This option is only available with the PostScript driver.

Applies the speciﬁed phosphor (monitor type) information to the RGB source space deﬁnition (see page 1-11). To use this print option, you must choose Other as the RGB Source Proﬁle setting. This option is only available with the PostScript driver.

Adjusts CMYK color data to simulate an offset press standard or a custom color gamut deﬁned at your site. Choosing None bypasses simulation (see

page 1-12). This option is only available with the PostScript driver.

CMYK Simulation Method

Quick/Full (Source GCR)/Full (Output GCR) (Default set at Setup or with ColorWise Pro Tools)

Quick simulation applies one-dimensional transfer curves that adjust output density only. The Full simulations apply colorimetric transformations that adjust hue as well as output density (see page 1-14). This option is only available with the PostScript driver.

1-5 Managing color on the EX7750

EX7750 color print option What it does

RGB Separation

Output/Simulation (Default set at Setup or with ColorWise Pro Tools)

Output Proﬁle

Use Media Deﬁned Proﬁles/Output 1-10 (Default set at Setup or with ColorWise Pro Tools)

Combine Separations

On/Off

Screen Switching

On/Off

Image Smoothing

Automatic/Off/On/Below 90–300 ppi

Black Detection

On/Off

Determines which CMYK color space your original RGB data will be separated into—CMYK for the printer (Output) or CMYK for a speciﬁed simulation (Simulation). For more information, see page 1-15. This option is only available with the PostScript driver.

OTE: When RGB Separation is set to Simulation, RGB colors are affected by

CMYK Simulation Proﬁle and CMYK Simulation Method.

The output proﬁle is applied to all data in the print job (see page 1-16). Select Use Media Deﬁned Proﬁles to automatically use the output proﬁles predeﬁned for the media types you have chosen. The Use Media Deﬁned Proﬁles setting here overrides a similar setting in ColorWise Pro Tools. User-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 driver.

Speciﬁes whether to print separated CMYK data as a single, four-color composite document (see page 1-17). With Spot-On, you can combine an unlimited number of spot color separations along with the CMYK separations.

If you choose Off, all objects on the page use a low-frequency screen. If you choose On, text uses a high-frequency screen, and graphics and image objects use a low-frequency screen.

The On setting enhances the print quality of low-resolution images.

If your job consists of black-only text pages combined with a signiﬁcant number of color pages, set this option to Off.

Copier Mode

Photo/Map

Auto Trapping

On/Off

Select Photo if the ﬁle is a photograph; select Map if the ﬁle is a combination of text and photographs.

Speciﬁes whether the job should automatically trap text and graphics independently of the application used to create it.

Detailed explanations of how these and other settings affect your print jobs are provided in subsequent sections of this chapter.

1-6 EX7750 Color Management

Rendering Style

The Rendering Style option speciﬁes a CRD for color conversions. To control the appearance of images, such as prints from ofﬁce applications or RGB photographs from Photoshop, select the appropriate Rendering Style. The EX7750 allows you to select from the four rendering styles currently found in industry standard ICC proﬁles.

EX7750 rendering style Best used for

Photographic—Typically results

in less saturated output than presentation rendering when printing out-of-gamut colors. It preserves tonal relationships in images.

Presentation

saturated colors but does not match printed colors precisely to displayed colors. In-gamut colors such as ﬂesh tones are rendered well; similar to the Photographic rendering style.

Relative Colorimetric—Provides

white-point transformation between the source and destination white points. For example, the bluish gray color of a monitor will map to neutral gray. You may prefer this style to avoid visible borders when not printing full-bleed.

—Creates

Photographs, including scans and images from stock photography CDs and digital camera images.

Artwork and graphs in presentations. In many cases, it can be used for mixed pages that contain both presentation graphics and photographs.

Advanced use when color matching is important, but you prefer white colors in the document to print as paper white. It may also be used with PostScript color management to affect CMYK data for simulation purposes.

Equivalent ICC

rendering style

Image, Contrast, and Perceptual

Saturation, Graphics

Relative Colorimetric

Absolute Colorimetric

Provides no white point transformation between the source and destination white points. For example, the bluish gray of a monitor will map to a bluish gray.

—

Situations when exact colors are needed and visible borders are not distracting. It may also be used with PostScript color management to affect CMYK data for simulation purposes.

Absolute Colorimetric

1-7 Managing color on the EX7750

NOTE: The rendering styles associated with the PCL driver do not match those

associated with the PostScript driver.

Pure Black Text/Graphics

The Pure Black Text/Graphics option affects the printout for black text and vector

graphics on a page. Under most circumstances, leave this option set to On. When

Pure Black Text/Graphics is on, black colors generated by applications (for example, RGB = 0, 0, 0; CMYK = 0%, 0%, 0%, 100%; or K = 100%) are printed using the maximum amount of black toner allowed by the calibration curve. This means the black text and line art will not exhibit halftone artifacts (as long as the printer is calibrated correctly) and will not be misregistered, since there is only one toner used. 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 behavior of the Pure

Black Text/Graphics option with black data deﬁned in different color spaces.

NOTE: Use the Pure Black Text/Graphics option only when printing composites, not

when printing separations.

Input

black color

RGB

CMYK

Spot

On Off

Prints 100% black With the default proﬁle, prints a rich black using

Pure Black Text/Graphics

all toners.

Prints only with black toner, because CMYK simulations preserve the black channel. The actual amount of toner used depends on the current simulation and the calibration state of the printer.

Prints only with black toner, because spot color simulations preserve the black channel. The actual amount of toner used depends on the current simulation and the calibration state of the printer.

1-8 EX7750 Color Management

NOTE: PostScript applications (such as QuarkXPress) may convert elements deﬁned as

RGB = 0, 0, 0 to four-color CMYK black before sending the job to the EX7750. These elements are not affected by the Pure Black Text/Graphics option. For details, see the

Fiery Color Reference. Also, black text and line art deﬁned as RGB = 0, 0, 0 in ofﬁce

applications (such as Microsoft Word) are converted to single-color black (CMYK = 0%, 0%, 0%, 100%) by the Microsoft PostScript Level 3 driver for Windows 2000/XP. To print this single-color black at the maximum toner density 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 not black text or text/graphics, deﬁned as RGB = 0, 0, 0, or as CMYK = 0%, 0%, 0%, 100%, overprints colored backgrounds.

Text—Black text overprints colored backgrounds, eliminating white gaps and

•

reducing halo effects or misregistration of colors.

• Text & Graphics—Black text and graphics overprint colored backgrounds,

eliminating white gaps and reducing halo effects or misregistration of colors.

• Off—Black text or text/graphics knocks out colored backgrounds.

NOTE: PostScript applications may perform their own black overprint conversions

before sending the print job to the EX7750.

1-9 Managing color on the EX7750

One example of how you might use this setting is with a page that contains black text on a light blue background. The background blue color is CMYK = 40%, 30%, 0%, 0% and the black text is CMYK = 0%, 0%, 0%, 100%.

•With Black Overprint set to Text or Text/Graphics, the ﬁnal text or text/graphic

portions of the page are overprinted, or combined with the underlying colors. Black colors generated by applications (for example, RGB = 0%, 0%, 0%; CMYK = 0%, 0%, 0%, 100%) are printed using the maximum amount of black toner allowed by the calibration curve. This means that black text and line art will not exhibit halftone artifacts (as long as the printer is calibrated correctly). There is no transition in the cyan and magenta toners, and the quality of the output is improved since it will not show artifacts near the edges 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 cyan and magenta toners on one side (outside the text) and black toner on the other side (inside the text). This transition may cause visible artifacts because of the practical limitations of the printer.

NOTE: This feature is not available with the PCL driver.

Spot Color Matching

The Spot Color Matching option provides automatic matching of spot colors with their best CMYK equivalents.

• On—The EX7750 uses a built-in table to generate the closest CMYK matches of

spot colors your printer can produce. (New tables are generated when you add new output proﬁles.)The EX7750 uses the CMYK matches determined through SpotOn (see page 3-19).

• Off—The EX7750 uses CMYK equivalents deﬁned by the spot color manufacturer,

such as PANTONE. These are the same CMYK equivalents used by applications that include spot color libraries.

1-10 EX7750 Color Management

For jobs that include spot colors, set Spot Color Matching to On unless you are printing press simulations. In that case, set Spot Color Matching to Off and choose the appropriate CMYK Simulation setting (see page 1-12).

For PDF jobs that include spot colors and where the spot colors are not included in the built-in table, setting Spot Color Matching to On retains the spot color originally speciﬁed. The EX7750 references the built-in table to generate the closest CMYK matches of the original spot color.

NOTE: Use the Spot Color Matching option only when printing composites, not when

printing separations.

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 setting.

• On—The EX7750 uses a built-in table or the Spot-On color dictionaries (see

page 3-19) to generate the best matches of the PANTONE colors that your printer

can produce. The PANTONE number is printed below each swatch.

• Off—The EX7750 prints swatches using the CMYK values recommended by

Pantone, Inc. (and used by applications that provide PANTONE color libraries). The CMYK values used to generate the color, as well as the PANTONE number of the color, are printed below each swatch. These CMYK values are printed through the selected CMYK Simulation and Output Proﬁle settings.

NOTE: This feature is not available with the PCL driver.

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.

1-12 EX7750 Color Management

• Sources 1-10 specify the deﬁnitions you download as RGB source proﬁles. For more

information about downloading RGB source proﬁles, see page 3-5.

If you are printing with the PostScript driver from a Windows computer and have Two-Way Communication enabled, the name of each downloaded proﬁle is represented in the RGB Source Proﬁle setting menu. If you are printing with the AdobePS driver from a Mac OS computer, downloaded proﬁles appear as Source-1 through Source-10. For more information about Two-Way Communication, see the

User Software Installation Guide.

• None instructs the EX7750 to allow the RGB sources you deﬁned elsewhere, such as

in the application, to be used. When you set RGB Source to None, the appearance of colors will not be independent of the ﬁle type. 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 the Rendering Style option (see page 1-6). Non-PostScript RGB data and PostScript RGB data that does not contain a source color space deﬁnition are converted using a general undercolor

removal (UCR) conversion method.

NOTE: This feature is not available with the PCL driver.

CMYK Simulation Proﬁle

The CMYK Simulation Proﬁle print option allows you to print press proofs or simulations. This setting speciﬁes the offset press standard or other color printing device that you want to simulate. This option affects CMYK data only.

With the Windows printer drivers, you can also view an unlimited number of custom Full simulations created using ColorWise Pro Tools. On Mac OS computers, you can view up to 10 Full custom simulations. The number of custom simulations is limited by the disk space on the EX7750.

1-13 Managing color on the EX7750

If you are printing with the PostScript driver from a Windows computer and have Two-Way Communication enabled, the name of each downloaded or custom proﬁle is represented in the CMYK Simulation Proﬁle setting menu. If you are printing with the AdobePS driver from a Mac OS computer, downloaded or custom proﬁles appear as Simulation-1 through Simulation-10. For more information about Two-Way Communication, see the User Software Installation Guide.

The None setting sends your original CMYK data to the printer in its calibrated state, without conversions to simulate another printer. This setting 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 standard for which the CMYK data was separated.

•For images that were separated using a custom separation (such as a separation

produced with an ICC proﬁle), choose the corresponding proﬁle on the EX7750 with the CMYK Simulation Proﬁle setting.

•For images that were separated for SWOP, choose SWOP as the CMYK Simulation

Proﬁle setting.

NOTE: To properly simulate a printed image that was separated through the use of an

ICC proﬁle, the same proﬁle must be present on the EX7750. For more information about downloading ICC proﬁles to the EX7750, see “Downloading proﬁles” on page 3-5.

NOTE: This feature is not available with the PCL driver.

1-14 EX7750 Color Management

CMYK Simulation Method

The CMYK Simulation Method allows you to deﬁne your preferred CMYK-to-CMYK conversion technique.

• Quick applies one-dimensional transfer curves to adjust output densities in the cyan,

magenta, yellow, and black channels. This technique leads to pleasant color output from your printer because pure primary colors are not “contaminated” by other

colorants. While it is the fastest simulation method and perfect for drafts, avoid

using it for ﬁnal documents that will be used as press proofs. Other techniques offer more color simulation accuracy, which is expected by prooﬁng applications.

• Full (Source GCR) provides a complete and accurate simulation based on colorimetric

transformations. Hues are preserved, even for primary colors. The Gray

Component 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 applications.

• Full (Output GCR) is also a complete and accurate simulation method based on

colorimetric transformations. Hues are preserved, even for primary colors. With this method, the Gray Component Replacement (GCR) level that was speciﬁed in the original document is not preserved. Instead, all CMYK data is reseparated using the GCR level speciﬁed by the Output Proﬁle. This simulation technique is similar to traditional ICC color matching methods and is appropriate for most documents designed for the press, but reproduced on your printer.

NOTE: When you specify On for Pure Black Text/Graphics, and specify Full (Output

GCR) for CMYK Simulation Method, the black text and graphics in your document are printed with 100% black-only toner.

NOTE: This feature is not available with the PCL driver.

1-15 Managing color on the EX7750

RGB Separation

The RGB Separation option determines how RGB colors (as well as Lab and XYZ colors) are converted to CMYK. The name of this option is meant to be descriptive, since the option deﬁnes the color spaces that will be used by the EX7750 to “separate” the RGB data into CMYK values.

The two choices available for this option determine whether RGB data is converted into the full gamut of the printer (output) or is ﬁrst converted into the gamut of another digital printer or press standard (simulation). This feature is helpful for making one device behave like another for RGB data. For example, if a high-quality ICC proﬁle is available for another print device, the printer can simulate the behavior 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 having to convert the RGB data to CMYK data for each condition. When the desired printing condition is found, convert the ﬁle to CMYK, using the same CMYK simulation proﬁle you used during the experimentation.

NOTE: The RGB Separation print option should be used in conjunction with the

Output Proﬁle or CMYK Simulation Proﬁle print options.

• Output converts all RGB colors into the CMYK color space of your printer (when

set to the printer’s default), or a customized CMYK color space for your printer (when set to Output 1-10).

• Simulation converts all RGB colors into the CMYK color space for a speciﬁed

simulation (select the desired simulation with the CMYK Simulation Proﬁle print option).

NOTE: This feature is not available with the PCL driver.

1-16 EX7750 Color Management

Image Smoothing

The Image Smoothing option prevents low-resolution images from appearing “jaggy” or “blocky.” This option uses an image interpolation technique that averages the color of individual pixels based on their neighbors. The Image Smoothing option only affects images and supports all image ﬁle formats.

NOTE: The Image Smoothing option is not applied to print jobs created with Adobe

Photoshop 6 when an EPS image is saved with the Image Interpolation option set.

Output Proﬁle

An output proﬁle consists of a proﬁle for your printer, describing its color characteristics. You can set a default output proﬁle to be applied to all print jobs, or you can have output proﬁles predeﬁned for the media types in your print jobs automatically applied (see “Using media-deﬁned output proﬁles” on page 3-4).

In certain cases, you may want to customize the default output proﬁle using the ColorWise Pro 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 its associated calibration target (since the target is based on a printer model). You can edit D-Max values of the calibration target separately (see page 3-11).

Use the ColorWise Pro Tools Proﬁle Manager to download your own output proﬁle to the EX7750 (see page 3-5). Downloaded output proﬁles are at ﬁrst associated with the calibration target that is tied to the default output proﬁle. You can edit calibration target D-Max values separately.

If you are printing with the PostScript driver from a Windows computer and have enabled Two-Way Communication, the name of each downloaded or custom proﬁle is represented in the Output Proﬁle setting menu. If you are printing with the AdobePS driver from a Mac OS computer, downloaded or custom proﬁles appear as Output-1 through Output-10. For more information about Two-Way Communication, see the

User Software Installation Guide.

NOTE: This feature is not available with the PCL driver.

1-17 PostScript printer driver for Windows and Mac OS

Combine Separations

The Combine Separations setting speciﬁes how to print separated CMYK data. With Spot-On, you can combine an unlimited number of spot color separations along with the CMYK separations.The Combine Separations options are:

• Off prints each separation individually.

• On combines separations as a single, composite-color document and automatically

makes these settings for the following print options: Color Mode (CMYK), Rendering Style (None), Pure Black Text/Graphics (Off), Spot Color Matching (Off), or Black Overprint (Off).

For information about using the Combine Separations option with applications such as Photoshop, see the Fiery Color Reference.

PostScript printer driver for Windows and Mac OS

To access the printer driver options described in this section, choose Start>Settings>Printers (Windows 2000) or Printers and Faxes (Windows XP), rightclick the appropriate printer (PPD) name, and choose Printing Preferences from the menu that appears. To access the Mac OS driver options, choose Print from the File menu of your application. These settings are also accessible from the Print Setup or Page Setup dialog boxes of most applications.

For Windows computers, the EX7750 driver interface allows you to save combinations of settings for later access. Additionally, you can choose different settings for individual jobs from the applications you use.

The printer driver writes a PostScript ﬁle containing the instructions generated by your application and the EX7750 print options you chose. The printer driver sends the PostScript ﬁle to the EX7750. The EX7750 then performs PostScript processing and color conversions and sends raster color data to the print device.

1-18 EX7750 Color Management

NOTE: The following illustrations and instructions do not apply to all applications.

Many applications, such as Adobe PageMaker, Photoshop, Adobe Illustrator, QuarkXPress, and CorelDRAW, have other color management options in addition to those presented in the printer driver. For information about speciﬁc applications, see the Fiery Color Reference.

Setting color management print options for Windows

This section explains how to set EX7750 color print options with the Adobe 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:

•Install the PostScript Printer Driver and the EX7750 PPD

(see the User Software Installation Guide).

•Set up the EX7750 for printing (see the Conﬁguration Guide).

•Install the ICC output proﬁle for the EX7750 on your Windows computer

(see the User Software Installation Guide).

Choose ColorWise

TO SET PRINT OPTIONS FOR WINDOWS

1. Access the printer driver options, as described on page 1-17.

2. Click the Fiery Printing tab and choose settings from the ColorWise menu for the print options described on page 1-3.

1-19 PostScript printer driver for Windows and Mac OS

3. Click Expert Settings.

4. Click Update to display the current EX7750 settings.

5. To specify custom RGB source settings, select Other for the RGB Source Proﬁle and

Click Expert Settings to access

additional ColorWise options

The Expert Color Settings ﬂowchart appears. This window displays additional color settings for the EX7750. Each option includes a menu from which you select settings for your speciﬁc job.

If Update does not appear, make sure that Two-Way Communication is set up as described in the User Software Installation Guide.

click Custom Setup.

The Custom Setup dialog box allows you to specify custom RGB source settings (see page 1-11).

For most users, the default settings provide the right level of color control. For more information about individual print options, see page 1-3.

1-20 EX7750 Color Management

Adobe PostScript printer driver for Mac OS

This section explains how to set color management print options with the AdobePS printer driver for Mac OS, a PostScript 3 driver that takes full advantage of the color features of the EX7750 and allows you to save a set of print option settings.

Before you continue, complete the following procedures, as described in the User

Software Installation Guide:

•Install the AdobePS printer driver and the EX7750 PPD.

•Select the EX7750 in the Chooser and set it up with the EX7750 PPD.

•Install the ICC output proﬁle for the EX7750 on your Mac OS computer.

NOTE: The following illustrations and instructions do not apply to all applications.

Setting color management print options

Choose settings for color print options from the various panes of the AdobePS driver dialog box. To access the initial AdobePS dialog box, choose Print from the File menu of your application.

NOTE: The term “pane” is used to describe the different pages that appear in the driver

dialog box when you make selections from the menu at the upper-left corner of the dialog box. Each pane presents a particular set of print options.

The AdobePS driver includes the following Color Matching options.

• Color/Grayscale—When this setting is used to print to the EX7750, ColorWise

provides all color conversions on the EX7750. Typically, use this option when printing to the EX7750.

• PostScript Color Matching—Can be used with PostScript devices, such as the

EX7750. It provides for color conversion using a color rendering dictionary (CRD) that is downloaded with the print job. This method requires that the ﬁle is saved as an EPS with PostScript Color Management selected.

1-21 PostScript printer driver for Windows and Mac OS

NOTE: If you use the PostScript Color Matching option, the driver may, depending

on the application in use, attach a CMYK source deﬁnition to the CMYK data in your document. In such a case, the CMYK data in the document is reseparated using a EX7750 CRD. The destination color space for the CRD is determined by the RGB Separation print option. When RGB Separation is set to Simulation, CMYK data is printed according to all speciﬁed CMYK Simulation Proﬁle and CMYK Simulation Method settings. 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 can be used with PostScript devices such as the EX7750, but it is intended for use with PostScript Level 1 devices. If you use this option, you must specify the EX7750 ICC proﬁle as the Printer Proﬁle. ColorSync Color Matching is not a suggested color matching method because it does not work in conjunction with all applications and requires that you disable features of ColorWise on the EX7750.

TO SET EX7750 COLOR MANAGEMENT OPTIONS

Choose Color Matching from this menu

1. In the AdobePS Print dialog box, choose Color Matching from the menu.

1-22 EX7750 Color Management

2. Choose Color/Grayscale from the Print Color menu.

3. In the Printer Speciﬁc Options menu, choose settings for the print options described

Choose Color/Grayscale

on page 1-3. If these settings are used regularly, click Save Settings to save them for subsequent jobs.

TO SET EX7750 COLOR MANAGEMENT OPTIONS FROM MAC OS X V10.2 OR LATER

Choose Printer Features from this menu

1-23 PostScript printer driver for Windows and Mac OS

1. In the Print dialog box, choose Printer Features.

2. In the Printer Features area, choose settings for the print options described on

page 1-3.

This page is intentionally blank.

2-1 Color Calibration

Chapter 2: Color Calibration

Calibrating the EX7750 ensures consistent, reliable color output. This chapter explains how calibration works and provides instructions for all calibration procedures.

NOTE: This chapter describes calibrating the EX7750. You must also calibrate the

Phaser 7750. For instructions, see the documentation that accompanies your printer. We recommend that you calibrate the Phaser 7750 ﬁrst, and then the EX7750.

Calibrate the EX7750 using ColorWise Pro Tools in combination with any of the following color measurement instruments:

• EFI Spectrometer ES-1000 hand-held spectrometer

• X-Rite DTP41 automatic scanning spectrophotometer

• X-Rite DTP32 or DTP32HS automatic scanning densitometer

By connecting one of these instruments to a serial 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 a USB port. For more information, contact your service technician/representative. For information about setting up and operating the DTP41 and DTP32, see

Appendix A.

Another calibration method, VisualCal™, is run from the Control Panel on the EX7750. Calibrating from the Control Panel with VisualCal is described on

page 2-20.

When choosing a calibration method, keep in mind that methods using a color measurement instrument such as the ES-1000, DTP41, or DTP32/DTP32HS are generally the best. We recommend using the ES-1000 because it captures measurements very accurately and quickly, can be used to calibrate and proﬁle printers using pages with randomized patches, and can be used to measure and adjust individual spot colors.

2-2 Color Calibration

For information about the advanced calibration and simulation features available with ColorWise Pro Tools, such as editing proﬁles and creating custom proﬁles, see

Chapter 3. A format for inputting color measurements from other densitometers is

described in Appendix B.

NOTE: The procedures described in this chapter are fundamentally the same for

Windows and Mac OS computers. The main differences are the interface cable and the port used to connect to the measurement instrument. The illustrations in this chapter describe the Windows version.

NOTE: The term “computer” is used to refer to any computer running

ColorWise Pro Tools.

An overview of calibration

Calibration generates curves that adjust for the difference between the actual toner densities (measurements) 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 target that describes the expected behavior

of the printer.

After you calibrate the EX7750, a calibration set is stored. This calibration set is used when it is associated with an output proﬁle. Every output proﬁle has an associated calibration set. If you have not speciﬁed one, the calibration set associated with the default output proﬁle is used.

If you change the calibration after a saved job has been processed (RIPped), you do not need to reprocess (reRIP) the job. The new calibration settings are in effect for the job.

NOTE: Changing calibration has the potential to affect all jobs for all users, so consider

limiting the number of people authorized to perform calibration. Set an Administrator password in EX7750 Setup to control access to calibration (see the Conﬁguration

Guide).

2-3 Understanding calibration

Understanding calibration

Although the default calibration set meets most users’ needs, the EX7750 allows you to choose a calibration set to customize calibration for specialized jobs.

Calibration allows you to:

•Maximize the color reproduction capabilities of the EX7750.

•Ensure consistent color quality over time.

•Produce consistent output across EX7750 servers.

•Achieve better color matches when reproducing spot colors, such as PANTONE

colors or other named color systems.

•Optimize the EX7750 for using ColorWise rendering styles (CRDs) and CMYK

simulations, and for using ICC proﬁles.

How calibration works

Success in obtaining satisfactory print quality from the EX7750 depends on many factors. Among the most important are establishing and maintaining 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 density is affected by service settings, humidity, and temperature. Density also tends to drift over time. Regular measurement detects day-to-day variations in densities, and calibration corrects for them.

Calibration works by creating calibration curves on the EX7750 that compensate for the difference between actual (measured) and desired (target) density values. These calibration curves are the graphic equivalent of transfer functions, which are mathematical descriptions of changes that will be made to the initial data. Transfer functions are often graphed as input or output curves.

The EX7750 generates calibration curves after comparing measured values to the ﬁnal target values for each of the four toner colors. The target values are based on the output proﬁle you specify.

2-4 Color Calibration

Measurements

Measurement ﬁles contain numerical values that correspond to the toner density produced by the printer when it prints solid cyan, magenta, yellow, and black, and graduated tints of those colors.

To create a measurement ﬁle, print a page of color patches and then measure the patches using a color measurement instrument connected to a computer on the network. The new measurements are automatically downloaded to the EX7750.

Output proﬁles and calibration sets

Output proﬁles and calibration sets deﬁne desired calibration results. One or more output proﬁles and calibration sets are provided with the EX7750. When you calibrate the EX7750, select the calibration set that corresponds to the typical printing jobs at your site. This same calibration set can be associated with one or 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 jobs. If it is very important to maintain consistent color, or if the printer is subject to wide ﬂuctuations in temperature or humidity, calibrate every few hours. For optimal performance, calibrate whenever there is a noticeable change in print quality.

If you must split a print job into two or more batches to be printed at different times, it is especially important to calibrate before you print each batch. You should also calibrate the EX7750 after printer maintenance.

NOTE: Because printed output from the printer is very sensitive to changes in

temperature and humidity, the printer should not be installed near a window, in direct sunlight, near a heater, or near an air conditioner. Paper is also sensitive to climate changes. Store paper in a cool, dry, stable environment, and keep reams sealed until they are needed.

2-5 Understanding calibration

To monitor print quality, print the following color reference pages:

• Color Charts from the Control Panel (see the Conﬁguration Guide)

• Color Charts from Command WorkStation/Command WorkStation LE

(see the Job Management Guide)

• Color reference pages included with the user software (see the User Software

Installation Guide)

All these pages include fully saturated color patches and pale tints of cyan, magenta, yellow, and black. Images with skin tones offer a very good basis for comparison. Save and compare pages you printed at different times. If there is a noticeable change in appearance, calibrate the EX7750.

When you examine the color reference pages, 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 color lightens from 100 percent to zero percent.

If the solid density patches (100% cyan, magenta, yellow, or black) appear less saturated with time, show the pages to your printer service technician to determine whether adjusting the printer can improve output.

Checking calibration status

To verify whether the EX7750 is calibrated, which calibration set and output proﬁle were used, and when the printer was last calibrated:

•Print a Conﬁguration page or Test Page from the Control Panel or Command

WorkStation/Command WorkStation LE.

•Select a calibration set in Calibrator (available from ColorWise Pro Tools).

The date of the last calibration and the user who performed it are displayed.

2-6 Color Calibration

Using Calibrator

ColorWise Pro Tools Calibrator allows you to calibrate the EX7750 using the measurement method of your choice.

Changing the calibration has the potential to affect all jobs for all users, so consider limiting the number of people authorized to perform calibration. Set an Administrator password to control access to calibration (see the Conﬁguration Guide).

NOTE: Multiple users can be connected to one EX7750 with ColorWise Pro Tools, but

only 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 ColorWise Pro Tools main window.

TO CALIBRATE THE EX7750 USING CALIBRATOR

1. Start ColorWise Pro Tools and connect to the EX7750.

For instructions on conﬁguring the connection to the EX7750, see the User Software

Installation Guide.

NOTE: If the connection to the EX7750 from Command WorkStation/Command

WorkStation LE (which also allows for access to ColorWise Pro Tools) is not established, you can start ColorWise Pro Tools independently of Command WorkStation/Command WorkStation LE.

2-7 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 chapter.

2-8 Color Calibration

Expert Mode

Calibrator provides two modes: Standard Mode and Expert Mode. You can perform all essential calibration tasks while in Standard Mode. Expert Mode offers two additional options: Print Pages and View Measurements.

With the Print Pages option, print a calibration Comparison Page showing the 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 PostScript (EPS) ﬁle called CALIB.PS. Print the ﬁle to the Hold queue of the EX7750 from your application, or download it to the Hold queue with Fiery Downloader. An additional way to create the CALIB.PS ﬁle is to rename any job in the Hold queue using Command WorkStation/Command WorkStation LE (see the Job Management Guide).

2-9 Using Calibrator

The View Measurements option allows you to view the current set of measurements as a table or graph that shows both the measurements and the target curves.

When more than one proﬁle 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 output proﬁle from this menu displays the target curves associated with that proﬁle. If each output proﬁle contains a unique calibration target, the curves displayed also change when you switch proﬁles.

2-10 Color Calibration

Restoring default calibration measurements

The EX7750 is shipped with default calibration measurements. You can use these measurements to achieve acceptable color without calibration, depending on the printer you use. If the measurement device you use does not produce acceptable color, you can easily return to the default measurements.

TO RESTORE DEFAULT CALIBRATION MEASUREMENTS

1. Click Restore Device in the main Calibrator window.

2. Click OK to restore the preset default calibration set.

OTE: Restore Device applies only to the currently 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 Tools and the ES-1000 to calibrate the EX7750,

follow the instructions on page A-1 for setting up and calibrating the ES-1000 spectrometer.

ColorWise Pro Tools uses an audible signal (a beep) to guide you through the calibration procedure. If the computer running ColorWise Pro Tools does not have a sound card and speaker, you must conﬁgure the computer to generate a visual signal when ColorWise Pro Tools outputs a beep. (Note that the EX7750 does not have a speaker.) The following procedure is for Windows XP. The procedure is similar for other Windows versions.

2-11 Calibrating the EX7750 with the ES-1000

TO CONFIGURE WINDOWS XP TO GENERATE A VISUAL SIGNAL FOR A BEEP

1. Click Start.

2. Choose Control Panel.

3. Double-click the Accessibility Options icon.

4. Click the Sound tab.

5. Select Use SoundSentr, and set the visual warning to Flash Desktop.

6. Click OK to save the setting.

7. Close the Control Panel.

TO CALIBRATE THE EX7750 USING THE ES-1000 SPECTROMETER

1. Start Calibrator.

For instructions 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 calibration set for the mode and type of media that are needed for calibration.

NOTE: For this calibration to take effect, the 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 proﬁle.

4. In the Generate Measurement Page pane, click Print.

The Print Options dialog box appears.

2-12 Color Calibration

5. Choose the appropriate options and click Print.

For Page Type, choose 21 or 34 Sorted Patches, or 21 or 34 Randomized Patches. Sorted patches are printed on the page in the order of their hue and saturation levels. Randomized patches are printed on the page in random order, to help compensate 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 patches, or 11x17 (US) or A3 (metric) for 34 patches.

Input Tray is automatically set to Auto Select.

6. Retrieve the printed measurement page from the printer.

7. Click Measure in the Get Measurements pane.

The Measurement Options dialog box appears.

Page Type is automatically set to the type that you selected in step 5.

2-13 Calibrating the EX7750 with the ES-1000

8. Check the settings and click Measure.

9. Place the ES-1000 spectrometer in the calibration cradle.

10. Click OK.

The Information dialog box appears.

When you place the ES-1000 spectrometer in the calibration cradle, white point calibration is used to calibrate the spectrometer and to compensate for gradual drifts in the instrument. Make sure that the sample aperture is in full contact with the white tile on the calibration cradle. If you do not place it correctly in the calibration cradle, the spectrometer will not return accurate measurements.

The EFI Spectrometer Measurements dialog box appears. Directions for measuring the strips appear in the Status ﬁeld.

11. For a more accurate measurement, place several sheets of plain white paper beneath the Measurement Page.

The extra sheets block underlying colors from being read by the instrument.

12. Orient the Measurement Page so that the strips are horizontal and the scan direction (indicated by the arrows at the beginning of each strip) is left to right.

13. Hold the ES-1000 with its length perpendicular to the scan direction, and place the sample aperture in the white space at the start of the speciﬁed color.

2-14 Color Calibration

14. Press and hold the measure button and wait for a beep.

15. After you hear a beep, slide the ES-1000 at a slow but consistent pace across the

16. Release the button when all the patches in the strip have been measured, and you

17. Repeat step 13 through step 16 until all the strips have been measured.

OTE: To hear a beep with a Windows compatible computer, you must install a sound

card and speaker(s). You might need to turn up the volume on your computer to hear the beep. Alternatively, you can conﬁgure the computer to display a visual signal for a beep. Follow the procedure on page 2-11.

strip.

Take about 5 seconds to slide the length of the strip.

have reached the white space at the end of the strip.

When a strip is measured successfully, the cross hair moves to the next color. If the strip is not measured successfully, a message directs you to try again.

OTE: You must take the measurements in the order outlined in the Status ﬁeld.

18. When all the patches have been read successfully, click Accept.

19. Click Apply in the Calibrator window to implement the new calibration measurement.

20. Click OK in the Information dialog box.

This completes the EX7750 calibration process.

Calibrating the EX7750 with the DTP41

Using the ColorWise Pro Tools Calibrator and the DTP41 spectrophotometer, you can quickly measure color patches generated by the printer and automatically download these measurements to the EX7750.

NOTE: Before using ColorWise Pro Tools and the DTP41 to calibrate the EX7750,

follow the instructions on page A-6 for calibrating the DTP41 spectrophotometer.

2-15 Calibrating the EX7750 with the DTP41

TO CALIBRATE THE EX7750 USING THE DTP41

1. Start Calibrator.

For instructions on starting Calibrator, see page 2-6.

2. Choose X-Rite DTP41 as the measurement method.

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 use most often.

NOTE: For this calibration to take effect, the 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 proﬁle.

4. In the Generate Measurement Page pane, click Print.

The Print Options dialog box appears.

5. Choose the appropriate options, and click Print.

For Page Type, choose 21 or 34 Sorted Patches.

Paper Size is automatically set to LTR/A4 for 21 Sorted Patches, or 11x17/A3 for 34 Sorted Patches.

For Input Tray, choose the paper source for printing the measurement page.

6. Retrieve the measurement page from the printer.

2-16 Color Calibration

7. Click Measure in the Get Measurements pane.

8. Click Measure.

9. If necessary, choose the appropriate COM port for the DTP41 from the Available Ports

The Measurement Options dialog box displays the speciﬁed Page Type and Paper Size options.

menu. Click Start Measurements.

10. Insert the measurement page into the DTP41, starting with the cyan strip.

Follow the on-screen instructions to align the page properly.

2-17 Calibrating the EX7750 with the DTP41

11. Click Read Strip.

12. Repeat the measurement process for the magenta, yellow, and black strips.

The DTP41 pulls the measurement page through automatically.

After the measurement page is read, Calibrator instructs you to insert and align the page again for the next color.

A check mark 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 sequence.

13. When the Status ﬁeld indicates that all four color strips have been read successfully, click Accept Measurements.

14. Click OK in the Measure dialog box.

15. Click Apply in the Calibrator window to implement the new calibration set.

16. Click OK in the Information dialog box.

This completes the EX7750 calibration process.

2-18 Color Calibration

Calibrating the EX7750 with the DTP32 or DTP32HS

Using the DTP32 or DTP32HS, you can quickly measure color patches and download these measurements to the EX7750 using ColorWise Pro Tools Calibrator.

NOTE: Before using ColorWise Pro Tools and the DTP32 to calibrate the EX7750,

follow the instructions on page A-12 for calibrating the DTP32 densitometer.

TO CALIBRATE THE EX7750 USING THE DTP32 OR DTP32HS

1. Start Calibrator.

For instructions on starting Calibrator, see page 2-6.

2. In the Select Measurement 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 often.

NOTE: For this calibration to take effect, the calibration set must be associated with one

or more output proﬁles. The default calibration set is already associated with the default output proﬁle. You do not need to make any new associations.

4. Click Print in the Generate Measurement Page pane.

The Print Options dialog box appears.

5. Choose the appropriate options and click Print.

For Page Type, choose 21 or 34 Sorted Patches

Paper Size is automatically set to LTR/A4 for 21 Sorted Patches, or 11 34 Sorted Patches.

x17/A3 for

2-19 Calibrating the EX7750 with the DTP32 or DTP32HS

6. Retrieve the measurement page from the printer.

7. Click Measure in the Get Measurements pane.

For Input Tray, specify the paper source.

The Measurement Options dialog box displays the speciﬁed Page Type and Paper Size options.

8. Click Measure.

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 does not have an edge guide for the page. Instead, position the page so that the strip to be measured is lined up directly under the alignment mark.

The Status ﬁeld displays instructions for selecting the port and feeding the measurement page through the DTP32 four times, once for each color strip.

2-20 Color Calibration

9. When the Status ﬁeld indicates that the measurements were read successfully,

10. Click OK in the Measure dialog box.

11. Click Apply in the Calibrator window to implement the new calibration set.

12. Click OK in the Information dialog box.

click Accept.

This completes the EX7750 calibration process.

Calibrating from the Control Panel using VisualCal

VisualCal is a calibration method that allows you to calibrate your printer to a color output standard deﬁned by the manufacturer. The calibration calculations performed by the controller software are based on a series of values entered on the Control Panel. The values used in the calculations are determined by evaluating toner 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 basis for calculating the most acceptable luminosity (brightness) of the toners. This page consists of rows of CMYK dots in a graduated range of toner densities.

The variables needed to recalculate the density of the colored toners are determined by identifying the leftmost dots that can be fully distinguished against their ﬁelds in each row, and sequentially entering their corresponding numeric values on the Control Panel. The variable needed to recalculate the luminosity of the toners is determined in a slightly different way—you identify the black dot that best matches a 30% dot gain ﬁeld. When all values have been entered, the printer’s toner density and luminosity settings are recalculated.

2-21 Calibrating from the Control Panel using VisualCal

Gray Balance

The second VisualCal page, “Gray Balance,” provides the basis for calculating a “neutral gray balance,” that is, a CMY gray that as closely as possible matches a pure K (blacK) gray produced by the printer’s engine. This page consists of rows of CMY gray patches on a ﬁeld of gray produced solely from black. The variables needed to calculate the printer’s most neutral gray balance are determined by identifying the CMY patch that best matches this ﬁeld, and entering its row and column location on the Control Panel. When the values have been entered, the printer’s gray balance is recalculated.

TO PERFORM VISUALCAL CALIBRATION

1. At the Idle screen, press the Menu button to enter the Functions menu.

2. Choose Calibration, 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 (see page 2-8).

4. At the main calibration screen, select Calibrate.

5. For Media, choose the media type for the calibration.

6. Select Yes to print the Limits and 30% Match page.

To reset the printer’s toner density and luminosity settings, follow the instructions provided on the Limits and 30% Match page. Use the touch screen to change numbers. Do not use the numerical keypad.

NOTE: Zero (0) and 9 are unacceptable values for color calibration. If you select 0 for

any of the colors, the resulting calibration is inaccurate. If you select 9, the Limits and 30% Match page is reprinted automatically with the densities shifted to enable you to enter a number less than 9. Re-enter values for all color rows starting with Black Start.

When you ﬁnish entering all values, the PRINT GRAYS screen appears.

2-22 Color Calibration

7. Select Yes to print the Gray Balance page.

8. (Expert Mode only) Select Yes to print a color test page that uses the original values

9. If you are satisﬁed with the printer’s calibration based on the new values, select YES

10. Choose Exit Calibration to return to the Functions menu.

To reset the printer’s gray balance, follow the instructions provided on the Gray Balance page. When you ﬁnish entering all values, the PRINT COLOR TEST screen appears (Expert Mode only).

NOTE: If the Gray Balance page is printed after the Limits calculations have been made,

the gray ﬁeld on which the CMY patches appear on the Limits page uses the new density and luminosity calibration settings.

(CURRENT COLOR TEST PAGE) and a Color test that uses the new values (NEW COLOR TEST PAGE). Press Enter to print the pages.

from the APPLY CHANGES screen that appears, and press OK to calibrate the printer based on the previously entered values.

Use the following suggestions for adjusting VisualCal for your speciﬁc preferences:

•If your prints seem to be color balanced but too dark, enter a lower value for the

30% Match entry on the Limits and 30% Match page, last row.

•If your prints seem too light, enter a higher value.

•If light areas on your prints have a color cast, enter a lower value in the Start row for

that toner.

•If dark areas on your prints have a color cast, enter a higher value in the End row for

that toner.

2-23 Calibrating from the Control Panel using VisualCal

TO REMOVE CALIBRATION FROM THE CONTROL 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 removing calibration.

The current measurements are removed and a default calibration is restored.

This page is intentionally blank.

3-1 ColorWise Pro Tools

Chapter 3: ColorWise Pro Tools

Designed to give you ﬂexible control of color printing, ColorWise Pro Tools include the following color management tools:

• Calibrator (see Chapter 2)

• Color Editor

•Proﬁle Manager

•Spot-On

• Color Setup

ColorWise Pro Tools for Windows and Mac OS computers are fundamentally the same; differences 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 Software Installation Guide.

NOTE: If the connection to the EX7750 from Command WorkStation/Command

WorkStation LE (which also allows for access to ColorWise Pro Tools) is not established, you can start ColorWise Pro Tools independently of Command WorkStation/Command WorkStation LE.

3-2 ColorWise Pro Tools

Proﬁle Manager

Proﬁle Manager allows you to manage and edit ICC proﬁles. In the case of the EX7750, these proﬁles are divided into RGB Source, Simulation, and Output proﬁles:

• RGB Source contains all monitor proﬁles resident on the EX7750. RGB Source

proﬁles are used to deﬁne the source color space for RGB colors processed by the EX7750.

NOTE: If you use Photoshop 5.x, 6.x, or 7.x, you can upload the proﬁle for your

selected working space to the EX7750 and choose that as your RGB Source Proﬁle. For more information, see the Fiery Color Reference.

• Simulation contains printer proﬁles used to simulate another 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 all users. Consider

limiting the number of people authorized to use ColorWise Pro Tools by setting an Administrator password.

The following proﬁles are provided with the EX7750.

RGB Source:

•Apple Standard—standard source color space for Mac OS computer monitors with

older versions of ColorSync

•sRGB (PC)—source color space for a generic Windows computer monitor

• EFIRGB—preset default setting for a EX7750

Simulation:

• DIC—Japanese press standard

•Euroscale—European press standard

•SWOP-Coated—United States press standard

In addition, one or more output proﬁles are provided with the EX7750. For information about output proﬁles, see page 1-16.

3-3 Proﬁle Manager

Setting default proﬁles

Use Proﬁle Manager to set a default RGB source proﬁle, simulation proﬁle, and output proﬁle. The default RGB source and simulation proﬁles that you set are applied to all print jobs sent to the EX7750, unless you override them using print options. The same is true of the default output proﬁle that you set, unless you select the Use Media Deﬁned Proﬁle option.

The Use Media Deﬁned Proﬁle option indicates whether or not the output proﬁles predeﬁned for the media types in your print jobs are applied automatically. For more information, see “Using media-deﬁned output proﬁles” on page 3-4.

TO SPECIFY A DEFAULT PROFILE

1. Start ColorWise Pro Tools and click Proﬁle Manager.

Output proﬁles

appear here

The left side of the main Proﬁle Manager window lists the ICC proﬁles in the default directory of your computer. The right side lists the three proﬁles on the EX7750.

The Lock icon ( ) to the left of a proﬁle name indicates that the proﬁle cannot be deleted and can be edited only if saved under a new name. Only Simulation and Output proﬁles can be edited.

A small icon to the left of a proﬁle name indicates the default proﬁle for each category (RGB Source, Simulation, and Output). If you designate a different proﬁle as the default, the icon appears next to your designated proﬁle. The icon indicating the

3-4 ColorWise Pro Tools

2. Select the proﬁle you want as the default for a proﬁle type and click Proﬁle Settings.

3. In the Proﬁle Settings dialog box, click Default and click Apply.

4. Click OK.

5. Repeat steps 2 through 4 for each type of proﬁle.

default RGB Source and Output proﬁles looks like a target ( ). The icon indicating the default Simulation proﬁle changes in appearance depending on whether the default RGB Separation setting is set to Simulation ( ) or Output ( ).

In the main Proﬁle Manager window, the target icon appears next to the new default proﬁle you speciﬁed.

If no default is set for RGB Source, the RGB Source print option is set to None. If no default proﬁle is set for Simulation, the CMYK Simulation print option is set to None. For more information about print options, 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 new name by selecting a preset proﬁle and specifying your choice of the calibration set in the Use Calibration Set menu and a new name in the Proﬁle Description menu.

Using media-deﬁned output proﬁles

Instead of having Proﬁle Manager apply a default output proﬁle to all your print jobs, select the Use Media Deﬁned Proﬁle option. This option automatically applies the output proﬁle predeﬁned for the media type in your print job. If your job contains mixed media, this option applies different output proﬁles predeﬁned for the different types of media.

The Use Media Deﬁned Proﬁle option in Proﬁle Manager is selected by default. It is applied to all print jobs sent to the EX7750, unless a user overrides it for an individual job by changing settings in the printer driver.

3-5 Proﬁle Manager

TO USE MEDIA-DEFINED OUTPUT PROFILES

1. Start ColorWise Pro Tools and click Proﬁle Manager.

2. Select Use Media Deﬁned Proﬁle in the Output bar of Proﬁle Manager.

Changing the setting for the Use Media Deﬁned Proﬁle option in Proﬁle Manager automatically changes the same setting in Color Setup. For more information, see

“Color Setup” on page 3-35.

Downloading proﬁles

The EX7750 includes default proﬁles. You can download additional proﬁles from 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 default location on your computer.

• Windows 2000—Winnt\System32\Spool\Drivers\Color

• Windows XP—Windows\System32\Spool\Drivers\Color

• Mac OS 9—System Folder:Preferences:ColorSync Proﬁles for ColorSync 2.0, and

System Folder:ColorSync Proﬁles for ColorSync 2.5 or later

• Mac OS X—System:Library:ColorSync: Proﬁles

2. If the desired proﬁle does not appear, click Browse to go to a different directory. Browse to the directory containing the proﬁle you want to download and click OK.

3-6 ColorWise Pro Tools

3. When the proﬁle you want to download appears in the list in the main Proﬁle Manager window, select it.

If the proﬁle is compatible with the EX7750, a green arrow indicates that the proﬁle is available for downloading. Only output device proﬁles are downloadable to Simulation and Output. Only input device proﬁles are downloadable to RGB Source.

NOTE: On Windows computers, the proﬁles must have an extension of .icc or .icm to

be listed. On Mac OS computers, the proﬁles must have a ﬁle type of “proﬁle.”

All ICC proﬁles in the selected directory on your computer are displayed in the list in the main Proﬁle Manager window. However, because a proﬁle is listed does not necessarily mean it can be downloaded to the EX7750.

Simulation proﬁles should be proﬁles only for those devices you want the EX7750 to match in terms of color output characteristics. 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 EX7750 prints to look like another printer, download that proﬁle as a Simulation. If you have a custom proﬁle of the printer you print to, download that proﬁle as an Output proﬁle.

4. Click the arrow to download the proﬁle and click OK when the download is complete.

The new proﬁle now appears in the list of proﬁles on the right side of the Proﬁle Manager main window.

For Mac OS computers, this proﬁle must be associated with one of the predeﬁned names (Source-1 through Source-10 for RGB Source, Simulation-1 through Simulation-10 for Simulation, or Output-1 through Output-10 for Output) or set as the default before it can be used. For Windows computers, all proﬁles can appear in the printer driver by their proﬁle descriptions (see “Deﬁning proﬁles” on page 3-8).

NOTE: When an output proﬁle is downloaded, it inherits the calibration target of the

current default output proﬁle.

3-7 Proﬁle Manager

Editing proﬁles

Customize the proﬁles on the EX7750 to meet your speciﬁc needs and the characteristics of your printer using Color Editor, either directly or through Proﬁle Manager. For more information about editing proﬁles, see “Color Editor” on page 3-11.

Managing proﬁles

Proﬁle Manager allows you to back up proﬁles to ensure that no custom proﬁles are lost when the EX7750 software is updated. You can also upload a copy of a built-in EX7750 proﬁle to your workstation in order to use it with an ICC-aware application, such as Photoshop. Proﬁle Manager also allows you to delete unwanted proﬁles.

NOTE: You can back up and delete only those proﬁles that appear in the main Proﬁle

Manager window without a Lock icon 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 arrow in the middle of the Proﬁle Manager window turns green and points to the left, indicating the proﬁle is available for upload.

3. Click the green arrow, choose a name and location for the proﬁle, and click Save.

The name will be the ﬁle name of the proﬁle, but the proﬁle description will be the original description, or the one you entered in the Proﬁle Settings dialog box.

NOTE: When saving the proﬁle on a Windows computer, include the extension .icm.

If the extension is not included, additional dialog boxes appear.

4. Click OK when you are notiﬁed that the proﬁle was successfully uploaded.

Delete proﬁles to ensure that the wrong proﬁles are not used, and to free up disk space on the EX7750 (although proﬁles do not take up much space).

3-8 ColorWise Pro Tools

TO DELETE PROFILES FROM THE EX7750

1. Start ColorWise Pro Tools and click Proﬁle Manager.

2. Select the proﬁle you want to delete and click Delete.

A Warning dialog box asks you to conﬁrm the deletion.

NOTE: You cannot delete preset proﬁles, proﬁles that are currently set as default, or

proﬁles that are linked to any of the predeﬁned custom names, for example Simulation-1.

3. Click Yes to delete the proﬁle.

4. To delete a proﬁle currently set as the default or associated with a custom name, click Proﬁle Settings and clear the default option.

Deﬁning proﬁles

For Mac OS 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 jobs (see “Setting default proﬁles” on page 3-3). Ten names are available for custom proﬁles—Source-1 through Source-10 for RGB Source, Simulation-1 through Simulation-10 for Simulation, or Output-1 through Output-10 for Output.

For Windows computers, all proﬁles appear by their actual names in the printer driver. These ﬁxed names are used in the printer driver. You can select proﬁles per job even if your driver does not have the capability to obtain an updated list from the EX7750.

NOTE: A custom simulation proﬁle is used to illustrate this procedure. The same steps

apply for deﬁning output proﬁles.

3-9 Proﬁle Manager

TO DEFINE A CUSTOM SIMULATION PROFILE

1. Start ColorWise Pro Tools and click Proﬁle Manager.

Custom proﬁle

created with

Color Edito

For the purposes of this example, assume DIC-new is a custom simulation proﬁle created with Color Editor and, as such, no information is displayed for DIC-new under the heading “Appear in Driver as.”

NOTE: 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 “Appear in Driver as” option, choose one of the predeﬁned custom simulation names (Simulation-1 through Simulation-10) from the menu, and then click Apply.

OTE: Choose a name that is not already linked with another simulation. You cannot

deﬁne two proﬁles with the same name.

3-10 ColorWise Pro Tools

4. Click OK.

NOTE: Although you cannot delete a preset proﬁle, you can use the name of a preset

proﬁle for your edited proﬁle when you select the “Appear in Driver as” option. This replaces the preset proﬁle with your own proﬁle.

In Proﬁle Settings, you can also change proﬁle descriptions for all non-locked proﬁles.

DIC-new will appea

in driver as

Simulation-1

Simulation-1 now appears under the “Appear in Driver as” column for DIC-new. Choosing Simulation-1 from the CMYK Simulation option of the printer driver applies the DIC-new simulation to the print job.

3-11 Color Editor

If you do not deﬁne a custom simulation proﬁle, your job prints with CMYK Simulation Proﬁle set to None. If you do not deﬁne a custom RGB Source or Output proﬁle, the default proﬁle is used.

Considerations for deﬁning Output Proﬁles

The procedure for deﬁning Output Proﬁles is similar to the preceding example for deﬁning Simulations proﬁles. However, note these differences:

•For output proﬁles, the predeﬁned custom names are Output-1 through Output-10.

• When you choose Proﬁle Settings for an output proﬁle, the Use Calibration Set

options also appear. You must calibrate the EX7750 with this calibration set before this option has any effect. If you have never measured for this calibration set, default measurements are used. For more information about calibration 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, or indirectly, through the Proﬁle Manager.

Editing proﬁles

Color Editor allows you to create custom proﬁles by editing existing simulation or output proﬁles and saving the changes as a new proﬁle. Use Color Editor to ﬁne-tune a proﬁle on your EX7750 to meet your exact speciﬁcations. For example, you can create a custom proﬁle for printing to a speciﬁc media type.

NOTE: You cannot edit source proﬁles; only simulation and output proﬁles can

be customized.

Color Editor has two Edit Modes for editing output proﬁles:

• Custom—Edit output proﬁles and save customized versions of them.

• % Density—View the calibration target, which is one component of the output

proﬁle. You can make changes to the calibration D-max target in this window, and you can import a new target (see page 2-3).

3-12 ColorWise Pro Tools

Color Editor also has several Edit Modes for editing simulations:

• Master—Create a custom master simulation that affects all print jobs to which it is

applied, unless a linked simulation exists for the selected combination of simulation proﬁle, simulation method, and output proﬁle.

• Quick, Full (Source GCR), or Full (Output GCR)—Create custom linked simulations.

Linked simulations affect the print job only if the corresponding simulation proﬁle, simulation method, and output proﬁle are selected. If you choose an output proﬁle and simulation 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 simulation, the master simulation is automatically applied. For detailed information about simulation methods, see

page 1-14.

NOTE: If you made edits to a master simulation after you created a linked simulation,

the edits are not applied to the linked simulation.

TO EDIT A SIMULATION PROFILE IN MASTER MODE OR AN OUTPUT PROFILE

IN CUSTOM MODE

1. Start ColorWise Pro Tools and click Color Editor.

2. Choose Simulation or Output from the View menu.

Simulation lists the simulation proﬁles resident on the EX7750, and Output lists the output proﬁles resident on the EX7750.

3-13 Color Editor

3. Choose a proﬁle to edit and click Select.

4. For a simulation proﬁle, choose Master from the Edit Mode menu. For an output

Another method is to open the Proﬁle Manager, select a proﬁle, and then click Edit.

proﬁle, choose Custom from the Edit Mode menu.

For instructions for using Quick, Full (Source GCR), 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, clicking Import at the

bottom of the Color Editor window allows you to import a calibration target ﬁle (.trg) created on another EX7750 using the previous version of ColorWise. The current version of ColorWise does not allow you to save a target separately; rather, it saves the target in conjunction with an output proﬁle.

3-14 ColorWise Pro Tools

5. Select the colors that you want to edit by turning colors off and on.

6. To adjust the dot gain value for simulating press output, click Dot Gain.

The Eye icon to the left of each color indicates whether that color is visible on the graph and will be affected by changes to the curves, brightness, and dot gain controls. You can view and edit all four colors (cyan, magenta, yellow, and black) at once, or in any combination. Working with only one or 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.

Choose either the North American or European standard. Use the sliders to adjust to the desired Dot Gain:

• The range of values for North American at 50% input are from 0% to 50% gain

on output.

• The range of values for European at 40% input are from 0% to 59% gain on output.

The range of values for European at 80% input are from 0% to 20% gain on output.

A curve with this shape makes a color appear lighter by reducing density in the midtones.

3-15 Color Editor

If you use Dot Gain values, apply the settings ﬁrst, so that the curves are deﬂected from their straight-line positions. Then make edits to the new curves. When you adjust Dot Gain values, all existing points on the curve are removed. A warning dialog box allows you to cancel Dot Gain settings before they are applied.

7. Use the plus and minus buttons to adjust brightness.

Changes 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 to the output percentage. (These percentages refer to the size of the CMYK halftone dots.) The curve you selected appears, and points along the curve are marked so you can adjust them.

A curve with this shape makes a color appear darker by adding density in the midtones.

A curve with this shape increases contrast.

3-16 ColorWise Pro Tools

9. For an output proﬁle, set maximum densities of the C, M, Y, and K channels.

10. When you are ﬁnished, click Save and enter a name for the new proﬁle.

NOTE: Adjust points in this way only after you have entered the Dot Gain and

Brightness values.

For greater precision, type percentages in the Input and Output ﬁelds or use the arrow keys on the keyboard to adjust the curve. To use the arrow keys, you must ﬁrst click the curve to establish an anchor point that serves as a reference.

Enter the maximum densities, called D-Max values, of individual colors for proﬁles that support density settings. D-Max settings are not available when you edit Simulation proﬁles in Master mode.

The new custom proﬁle is saved to the EX7750 with the new name. If you edit one of the press standard targets (for example, SWOP-Coated, DIC, or Euroscale), 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 saved with a new name.

For Mac OS computers, custom proﬁles must be linked to one of the 10 predeﬁned custom proﬁle names (Simulation-1 through Simulation-10 for Simulation, or Output-1 through Output-10 for Output) to be accessible from the printer driver. Create as many custom proﬁles as you want, but a maximum of 10 are available from the printer driver at any one time. For information about linking custom proﬁles to the predeﬁned custom proﬁle names, see “Deﬁning proﬁles” on page 3-8. If you are using the printer driver for Windows computers, custom proﬁles will appear in the driver window without being associated with a predeﬁned proﬁle name.

If you set a custom proﬁle as the default, you can access it from the printer driver without linking it to one of the predeﬁned custom names. Select Printer’s default from the printer driver.

3-17 Color Editor

TO EDIT A SIMULATION IN QUICK, FULL (SOURCE GCR),

OR FULL (OUTPUT GCR) MODE

1. Start ColorWise Pro Tools and click Color Editor.

2. Choose Simulation from the View menu, select the simulation proﬁle to edit, and then click Select.

Another method is to open the Proﬁle Manager, select a simulation proﬁle, and click Edit.

3. Choose Quick, Full (Source GCR), or Full (Output GCR) from the Edit Mode menu, and 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: When editing a simulation proﬁle in Quick mode, clicking Import at the

bottom of the Color Editor window allows you to import a custom Quick Simulation created on another EX7750 using the previous version of ColorWise. The current version of ColorWise does not allow you to save custom CMYK Quick, Full (Source GCR) or Full (Output GCR) Simulations independently. They are saved as components of the same proﬁle.

3-18 ColorWise Pro Tools

4. Edit and save the simulation, as described in steps 5 through 10 of the procedure starting on page 3-14.

For this new simulation to be automatically applied to a print job, the CMYK Simulation, Simulation Method, and Output Proﬁle settings must be the same as those used when you edited the proﬁle. If the Simulation Method is different or a different output proﬁle is selected, the Master simulation is applied.

NOTE: A CMYK Simulation Proﬁle can have a custom Master and one or more custom

links—up to three links (Quick mode and the two Full modes) for each output proﬁle on the system. For the CMYK Simulation Proﬁle option in the printer driver, note that if you select a custom proﬁle for which the output ink percentage is greater than 0 and the input ink percentage 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 edits, click Done on the Color Editor menu bar and

do not save the changes.

•If you saved your edits under a new CMYK simulation name and want to delete all

edits to the simulation in Master, Quick, and Full (Source GCR) or Full (Output GCR) modes, see page 3-8.

Checking edited proﬁles

To view a printed sample of a proﬁle before you save it to the EX7750, print one of the following:

• Comparison Page provided with ColorWise Pro Tools, which shows a comparison of

images and colored patches with and without edits

•User-deﬁned CALIB.PS in the Hold queue

You can create a custom comparison page and save it as a PostScript or Encapsulated PostScript (EPS) ﬁle called CALIB.PS. Print the ﬁle to the Hold queue of the EX7750 from your application, or download it to the Hold queue with Fiery Downloader (see

page 2-8).

Output proﬁle names appear here

3-19 Using Spot-On

TO CHECK A PROFILE

1. Click Test Print at the bottom of the Color Editor window.

2. Select a page to print. If you selected Comparison Page, choose a paper size. If you selected Sample Image Page, choose an output proﬁle. Then click Print

Using Spot-On

The ColorWise Spot Color Matching option automatically matches spot colors with their best CMYK equivalents so that spot colors 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 to adjust and manage lists of spot colors and their CMYK equivalents. The matching lists of spot colors and CMYK values are known as Spot Color Dictionaries. Spot-On allows you to maintain multiple Spot Color Dictionaries (one for each output proﬁle on the EX7750).

NOTE: To use Spot-On CMYK equivalents, you must enable the Spot Color Matching

option (see page 1-9).

3-20 ColorWise Pro Tools

Starting Spot-On

You can start Spot-On from ColorWise Pro Tools. To use Spot-On, you must ﬁrst specify the output proﬁle associated with the Spot Color Dictionary that you want to edit. However, you 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 and click Spot-On.

Output proﬁle names appear here

2. Choose the desired output proﬁle and click OK.

The Spot-On main window appears. The CMYK values you see in the window are calculated with respect to the speciﬁed proﬁle.

3-21 Using Spot-On

Using the Spot-On main window

The Spot-On main window displays a list of color groups that represent libraries of spot colors on the EX7750. Tool icons for working with colors appear at the top of the window.

Cut

Download

Upload

Save

Custom color group

Default color group

Copy

Paste

Down

Close All

By default, the EX7750 includes several PANTONE libraries 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 groups and colors to the Spot-On window (see

page 3-24). Added groups appear marked with the custom group icon ( ). Both

default and custom groups can be opened to display their included colors.

3-22 ColorWise Pro Tools

TO OPEN AND CLOSE A COLOR GROUP

1. To open a color group, click the icon to the left of the group name.

You can also open a group by double-clicking the blank area to the right of 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 the blank area to the right of the name.

3. To close all color groups in the list, choose Close All from the Edit menu.

You can also close all color groups by clicking the Close All icon above the color list.

3-23 Using Spot-On

Working with existing colors

With Spot-On, you can view and manage existing groups of colors on the EX7750. You can also search for a particular color in the Spot-On list.

Color groups in the Spot-On window appear in order of their priority. Highest priority is given to color groups at the top of the list. For instance, if two colors from two different color groups have the same name, the EX7750 uses the color from the higher group and disregards the other color. By managing the priority of colors in this way, you can maintain several CMYK variants for the same spot color.

TO REARRANGE THE PRIORITY OF COLORS

1. To 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 selection up or down in the list, click the Up or Down icon in the toolbar.

3. To paste the selection in a different location in the list, click the Cut or Copy icon in the toolbar.

OTE: The Cut operation is only available for custom colors.

4. Click the location in the list where you want to paste the cut or copied selection, and click the Paste icon in the toolbar.

When you paste a default color group or color, a warning message may appear asking you to rename the selection. Use the menus to choose the desired preﬁx and sufﬁx for the new name, and click OK. The pasted selection becomes a custom color group or color with the speciﬁed name.

3-24 ColorWise Pro Tools

TO FIND A SPECIFIC COLOR

1. Choose Find from the Edit menu.

The Find dialog box appears.

2. Enter the name of the color you want to ﬁnd and click OK.

Spot-On searches for the speciﬁed color, starting from the top of the color list. The located color appears selected in the color list.

3. To ﬁnd additional 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 add your own custom spot colors and groups to the list.

TO ADD A NEW COLOR OR COLOR GROUP

1. Select the line in the group or color list where your addition is intended.

2. Choose New Group from the Edit menu to insert a new group or choose New Color to insert a new color.

A new color group entry or color entry appears as Untitled.

3-25 Using Spot-On

TO RENAME A CUSTOM COLOR OR COLOR GROUP

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.

NOTE: Default groups or colors, such as PANTONE, cannot be renamed.

3-26 ColorWise Pro Tools

Downloading custom color groups

You can download custom color groups from your computer to the EX7750. Downloaded groups are added as custom groups to the Spot-On color list and are enabled immediately for use on the EX7750.

TO DOWNLOAD CUSTOM COLOR GROUPS

1. 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 click Open.

The downloaded group is added to the speciﬁed location in the Spot-On list. If you did not specify a location, the group is added to the top of the list.

If the downloaded group has the same name as an existing group in the list, you are prompted to rename the downloaded group.

3-27 Using Spot-On

Uploading custom color groups

Upload custom color groups from the EX7750 to your computer as ICC ﬁles. The upload feature allows you to share a group by creating a local copy that can be downloaded to another EX7750.

Before you 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 UPLOAD CUSTOM COLOR GROUPS

1. Select the name of the color group that you want to upload.

2. Choose Upload from the File menu.

The Save As dialog box appears.

3. Browse to the location where you want to save the ﬁle, name the ﬁle, and then click Save.

3-28 ColorWise Pro Tools

Editing color values

The Spot-On Color Search targets the exact CMYK toner equivalents required to simulate a desired spot color on the printer. If an existing spot color is not printing as desired, you can modify the color values as needed to achieve your 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. Select a color icon from a color group and choose Color Search from the Edit menu.

The Spot-On Color Search window appears. You can also display this window by double-clicking a color icon in the color list.

The current color appears in the center patch of the window.

Center patch

3-29 Using Spot-On

2. To update the center patch to a neighboring color that more closely matches the

3. Use the following techniques to control how neighboring color patches are generated:

target, click the corresponding neighbor patch.

Neighboring patches represent variations from the center patch and can be selected if they offer a closer match to the desired color. Clicking one of these patches updates the center patch to the new color and provides a new selection of neighboring colors. These patches are either lightness or saturation neighbors, depending on the option you choose in the following step.

NOTE: When you select certain colors, an exclamation point icon may appear in the

upper-right corner of the window. This icon indicates that the center patch color lies at the edge of the printer’s printable gamut and may not be reproducible. In such cases, we recommend that you use an approximate target that lies 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.

Select either Lightness or Saturation in the Color Directions Legend.

Lightness generates neighbor patches based on darker to lighter shades of the original color. This variation is displayed from left to right, with the original color remaining in the center of the middle group.

Saturation generates neighbor patches based on less saturated to more saturated variations of the original color. This variation is displayed from left to right, with the original color remaining in the center of the middle group.

Choose a setting from the Color Spacing menu to control the closeness of the neighbor patches.

A higher setting generates neighbor patches that differ more noticeably from the center color. As you get closer to your target color, reduce the color spacing to a smaller value.

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4. Continue adjusting the color patch controls and clicking neighbor patches until the

5. Choose Output Style, Paper Size, and Paper Tray options.

Select Monitor Compensation to simulate how all the on-screen color patches will appear when printed on paper.

This simulation depends on the monitor proﬁle that has been conﬁgured for the display. To specify the monitor proﬁle, choose Preferences from the Edit menu in the Spot-On main menu.

If you use the monitor that is part of the Fiery Advanced Controller Interface (FACI) option, select the monitor proﬁle that is installed with the option. If you use another monitor, select a proﬁle customized to describe the characteristics of that monitor.

desired color appears in the center patch. Click Print Pattern.

For Output Style, choose between Color Search Pattern and Color Neighbor Pattern. Color Search Pattern prints patches with the same pattern as displayed in the Color Search window. Color Neighbor Pattern prints patches in a three column by eight row format.

For Paper Size, choose the size of the paper you want to use for printing the patches.

For Paper Tray, specify the input tray for the paper you want to use.

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6. Click OK to print the patches.

7. When you have selected the desired target color in the Spot-On Color Search window,

The Print Pattern test page prints the following information:

• Center patch color CMYK value

• Color spacing

• Lightness or Saturation neighbors selected

•Output proﬁle selected

The goal of the Spot-On Color Search is to ﬁnd the color values that 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 compare the printed patches and ﬁnd the one that matches most closely, you can then select the corresponding patch on the screen.

click OK.

The edited color appears in the color list of the main Spot-On window.

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TO TARGET A COLOR USING EXACT CMYK VALUES

1. Click the center patch in the Spot-On Color Search window.

The Set Center Patch Color dialog box appears.

2. Select how you want to enter the CMYK values.

The Percentages option allows you to enter color values between 0 and 100%, in increments of 0.5. Values out of this range are rounded to the nearest 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 provides ﬁner gradations of color than are possible with Percentages.

3. Enter the C, M, Y, and K values of your speciﬁc color in the appropriate ﬁelds.

Use the Tab key to move from ﬁeld to ﬁeld. As you enter each new value, the preview patch updates to reﬂect the old and new colors.

4. Click OK.

The new color appears as the center patch in the Spot-On Color Search window.

3-33 Using Spot-On

Using a measurement instrument to target colors

If you use the EFI Spectrometer ES-1000, you can import measured color values directly into Spot-On. This feature allows you to target matches based on the actual colors of immediate objects, such as the red of a printed logo or the yellow of a packaging envelope.

For best results, download and save any measurement data you have gathered with the ES-1000 in its ofﬂine state. Spot-On automatically clears stored data when it establishes a connection with the 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-1000 for use with your computer.

For installation and setup instructions, see the documentation that accompanies the instrument.

2. Choose Start from the Instrument menu.

The Choose Port dialog box appears.

3. For Instrument, choose the instrument you will use to take measurements. For Port, choose the serial port connection of the instrument. Click OK.

The indicator light on the instrument ﬂashes for a few moments as the connection to Spot-On is established. When the ﬂashing stops, the instrument is ready to read measurements.

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4. Place the ES-1000 over the target color, making sure to center the sample aperture

5. When you ﬁnish taking color measurements, choose Stop from the Instrument menu.

over the color. Press Measure to take the measurement.

The measured CMYK values are imported into Spot-On as follows:

•If an individual color is selected in the color list, it updates to the measured color.

•If a group is selected in the color list, a new color with the measured values is created

within the group.

•If the Spot-On Color Search window is open, the center patch updates with the

measured values, and the neighbor patches update accordingly.

•If the Set Center Patch Color dialog box is open, the measured values are imported

into the CMYK entry ﬁelds.

Spot-On closes the connection to the instrument.

Saving changes and exiting Spot-On

To enable your spot color matches for use on the EX7750, you must save your edits before exiting Spot-On. This action ensures that all your changes to Spot-On color deﬁnitions are stored on the EX7750 and available for use when printing documents that contain spot colors.

The following edits do not require saving to take effect:

•Rearranging the priority level of a color group

• Downloading a color group

• Clearing or deleting a color group

TO SAVE THE SPOT-ON COLOR LIST

1. Choose Save from the File menu.

2. Click Close in the upper-right corner of the Spot-On main window to exit the utility.

3-35 Color Setup

Color Setup

Use Color Setup to set the default ColorWise settings for the EX7750. To access Color Setup, click its icon in the ColorWise Pro Tools main window.

Setting default ColorWise options

Color Setup allows you to conﬁgure the default color management settings for the EX7750. These settings are applied to all print jobs sent to the EX7750, unless a user overrides them for an individual job by changing 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 changes made in Proﬁle Manager appear automatically. In addition, the defaults set in Color Setup are automatically reﬂected in other EX7750 tools that list default settings.

The options in Color Setup are arranged in a pattern representing the ﬂow of color processing that takes place on the EX7750. To reset the EX7750 to its factory default settings, click Factory Default in the lower-left corner of the Color Setup window.

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For those color options that offer multiple choices, make your selection from the menu that appears. For RGB Separation, use the radio button next to the option name. For other options, use the check 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 the new defaults and keeps the Color Setup window open. Clicking Cancel closes the Color Setup window without applying any changes to the default settings. For most users, the factory defaults result in optimal color output.

Xerox EX7750 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

About the Documentation

Introduction

About this manual

Key features of ColorWise

Chapter 1: EX7750 Color Management

Managing color on the EX7750

Rendering Style

Pure Black Text/Graphics

Black Overprint

Spot Color Matching

CMYK Simulation Method

RGB Separation

Image Smoothing

Combine Separations

PostScript printer driver for Windows and Mac OS

Setting color management print options for Windows

Adobe PostScript printer driver for Mac OS

Chapter 2: Color Calibration

An overview of calibration

Understanding calibration

How calibration works

Scheduling calibration

Checking calibration status

Using Calibrator

Starting Calibrator

Expert Mode

Restoring default calibration measurements

Calibrating the EX7750 with the ES-1000

Calibrating the EX7750 with the DTP41

Calibrating the EX7750 with the DTP32 or DTP32HS

Calibrating from the Control Panel using VisualCal

Limits and 30% Match

Gray Balance

Chapter 3: ColorWise Pro Tools

Color Editor

Undoing CMYK simulation edits

Using Spot-On

Starting Spot-On

Using the Spot-On main window

Working with existing colors

Creating custom colors

Downloading custom color groups

Uploading custom color groups

Editing color values

Using a measurement instrument to target colors

Saving changes and exiting Spot-On

Color Setup

Setting default ColorWise options