HP Designjet A3/B How to get good color accuracy in a Proofing Workflow - User
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- HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 1
$SSOLFDWLRQ 1RWH HOW TO GET GOOD COLOR ACCURACY IN A PROOFING WORKFLOW Notes about the document This document is based on the hp designjet 10PS and 20PS series printers. This document contains both Mac and PC screenshot versions. The look and feel is almost the same (minor differences due to - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 2
Color Management 4 1.1 What is color 4 1.2 The Problem: Color in the computer world 5 1.3 The Solution: Color Management 7 2. Recommended Color Management Workflow 10 3. Environment Specific Options 13 3.1 Launching the Printer's Color Calibration 13 3.2 hp software rip's color settings 15 - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 3
44 4.6 Printing from Adobe InDesign 1.5 45 4.6.1 InDesign 1.5 Color Management 45 4.6.2 Printing path for MAC 46 4.6.3 Printing path for Windows 48 5. Printer driver settings 49 5.1 Page Setup info for MAC 49 5.2 Changing the default settings in MAC 50 5.3 LaserWriter driver's settings 53 - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 4
to Color Management To get color accuracy from your press using an HP Designjet 10ps or 20ps printer, you will need to understand three things: the basics of colors applied to the computer industry, the different color workflows in the graphics industry and how to get maximum performance from your - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 5
The Problem: ) is the color model of those devices that reflect light, such us printer or presses. A color is represented as a combination of Cyan, Magenta that you cannot represent in CMYK and vice versa. The following graphic illustrates how colors visible to the human eye are greater than those - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 6
CMYK devices have different CMYK color spaces and different RGB devices have different RGB color spaces. One clear example is printers that can use indoor inks or outdoors inks. The printer (hardware) is the same, however you will have two different color spaces due to the fact that they are using - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 7
1.3 The Solution: Color Management There can be no direct conversion from RGB images to CMYK and vice versa. The colors that do not match are called "out-of-the-gamut" colors. The industry has found two mechanisms to reduce color differences as much as possible by: • On the one hand, characterizing - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 8
It may be either the application or the operating system or the hp designjet software RIP. • Input ICC Profile: Description of the device's color o CMYK Input Profile; when you want to emulate a CMYK device such as a printer, a proofer or a press. o Grayscale Input Profile; when you want to emulate - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 9
when the output is a CMYK output such as a printer, a proofer or a press. Remember that these profiles output. It is suitable for business graphics (charts, presentations, etc.). Not recommended section, as the CMS we recommend using the HP Designjet software rip for the printing path and the - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 10
management workflows: Image Creation (Scanners or Applications) RGB Type of Images CMYK CMS: - Application - Operating System - HP Software RIP Environment Specific Options (Printer's Color Calibration) Print Out a) Type of images to print (top box): There are different combinations: printing - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 11
software RIP for printing. This CMS has been specifically designed to take the maximum performance of your HP Designjet 10ps or 20ps printer in combination with the HP Proofing media. Setting-up the printer with the right ICC profiles is going to be critical and in the next section we will discuss - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 12
of which CMS is used. The "calibrating the printer" section explains how to do calibration. Summarizing, the recommended workflow for a proofing environment is: CMYK CMS HP Software RIP Environment Specific Options (Printer's Color Calibration) Print Software Applications Notes 12/59 - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 13
, it is the step that requires very little changes once it has been set-up correctly. 3.1 Launching the Printer's Color Calibration Before starting to work, make sure you have the printer color calibrated. To check calibration, go to "Setup" menu and then to "Default Settings". Then press the "Color - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 14
same field) and the media source (to pick the paper) and press the "Calibrate" button. If you are using a non-HP media, select the HP media that is most like yours. The printer will print a color calibration pattern. Once printed, it will automatically feed the paper back in and read the values that - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 15
color settings To understand the color settings (of the HP software rip) the best thing to do is to and you do not change any setting of the postscript driver that can be found in the "Printer Specific Options" section of the Adobe PostScript driver. Later, we will look at the driver's settings - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 16
each part with the settings of the software RIP: Input JOB Input ICC Profile CMS Output ICC Profile Rendering Intent 2XWSXW -2% Where • CMS: HP Designjet 10ps or 20ps software RIP Input Profile: two options, for RGB images and for CMYK images Output Profile: Automatically selected by the - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 17
Let's see how this is mapped in the HP Designjet software rip. Go to the "Setup" menu of the software RIP, Calibration" check box. • In the ICC Input profile, select as CMYK the ICC profile of the printer or press you want to emulate, and in RGB the ICC profile of the monitor or scanner you want - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 18
graphics HP Proofing Glossy, HP Proofing Semi-gloss and HP Proofing Matte) have been certified by Pantone Inc. • Click OK to finish 6 Note: The Pantone coverage will depend on the media and print mode selected. 7 Note: Although Adobe PhotoShop supports this feature, the software rip does not support - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 19
just "Intent" but when you read their description in the user's manual you notice they are the same. There are some CMS applications that in the recommended workflow section, as the CMS we recommend using the HP Designjet software rip for the printing path and the application or operating system CMS - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 20
Finally remember to refer to the application users manual or support when you want to know more about a particular application. 4.1 Printing from QuarkXPress 4.0 changing the monitor setting (We strongly recommend to use None in the printer's fields and leave the printing path to be converted by the - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 21
help. As we have said, the recommended path is to use the HP color management system in the HP software rip. You may change the default settings using the printer driver through the application. In order to access to the printer driver, you may: a) If you wish to access to Page Setup section - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 22
PostScript printer. You can find the PPD file for your HP Designjet 10ps or 20ps in the following default directories: For MAC and HP Designjet 10ps: "HDD::hp designjet 10PS:PPD" For MAC and HP Designjet 20ps:" HDD::hp designjet 20PS:PPD" For PC and HP Designjet 10ps: "C:\Program Files\hp designjet - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 23
. The only difference is how to access the printer specific options in order to complete the printing path. To access the printer specific options you need to access "Properties..." button beside the printer's name. Refer to the section "Printer driver settings for Windows" to complete the process - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 24
PhotoShop 6.0 Color Management The Adobe PhotoShop 6.0 color management has a dual color management path: one for the visualization and another for the printer. Now we are going to talk about the visualization path and in the section 4.1.3 we will talk about the printing path. Our recommendation - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 25
Apart from the recommendation, here you have the analogy between the Adobe CMS settings and the CMS settings shown in the generic CMS diagram in case you want to make changes to them: • CMS: Adobe PhotoShop offers a variety of CMS in the field. You can change your CMS by selecting a different one in - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 26
4.2.2 Changing the file type In order to change the file type of your image (RGB, CMYK, Grayscale, etc.) once the image has been opened; go to "Image>Mode" menu. Remember we recommend working with CMYK images for press proofing. Once changed, save the file as TIFF in order to have a CMYK TIFF image. - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 27
"Adobe PhotoShop 6.0". The following screen will appear: • Once here, Select "Document" for the Source Space section (ICC Input Profile) • And let the printer perform the color pipeline in the printing path by selecting "PostScript Color Management" in the Profile field of the Print Space section - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 28
similar to MAC. In fact, there are no differences in features but there are in their location: • Go to "File->Print" • Choose the right printer in "Printer" field. To change it, click on "Setup..." button. In the bottom part of the window, you will see there is an area called "Source Space - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 29
4.2.5 Printing from Adobe PhotoShop 5.5 4.2.6 PhotoShop 5.5 Color Management The Color Management System (CMS) of Adobe PhotoShop 5.5 is different to Adobe PhotoShop 6.0. Menus are different for configuring CMYK or RGB settings. Our recommendation for the visualization path is: • Go to "File->Color - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 30
For further information about other press standards and other intents, go to section on "Configuring the printing". 4.2.7 Changing the file type To change the file type of your image (RGB, CMYK, Grayscale, etc.) once the image has been opened, go to "Image->Mode" menu. Remember we recommend working - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 31
The window below will appear: • Select "Encoding" to Binary • Enable the "PostScript Color Management" check box (with that option you are letting the printer take control of the color pipeline of the printing path) • Select the Space of your document (what you selected as ICC Input Profile). For - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 32
CMS is similar to PhotoShop 6.0. Therefore, Adobe Illustrator 9.0 color management also has a "dual" color management path: one for the visualization and another for the printer. Now we are going to talk about the visualization path and later we will see the printing path for t MAC & Windows. Our - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 33
Apart from the recommendation, here you have the analogy between the Adobe CMS settings and the CMS settings shown in the generic CMS diagram in case you want to make changes to them: • CMS: Adobe Illustrator offers a variety of CMS in the field. You can change your CMS by selecting a different one - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 34
• Go to "File->Document Color Mode" and choose the format you want to use (the current color mode will appear at the right of the window's name). 4.2.12 Changing the type file To convert any RGB image to CMYK, regardless of whether the document color mode is in CMYK, if the image imported (using - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 35
a recommendation for the rest of the settings: • "Output" is Composite • "PostScript" is Level 3 • "Data" is Binary • Check "Force Fonts to Download" check box. The printer does not support "Separation Setup...", which allows you to work with the different CMYK. Software Applications Notes 35/59 - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 36
: • "Output" is Composite • "PostScript" is Level 3 • "Data" is Binary (except in Windows NT that is ASCII) • Check "Force Fonts to Download" check box. The printer does not support "Separation Setup...", which allows you to work with the different CMYK. To complete the printing path, access the - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 37
The following screen will appear: • The settings are: • Monitor (RGB): Input ICC profiles for RGB Images • Printer (CMYK): Input ICC profiles for CMYK Images • Engine: The application that is going to act as CMS (the HP Designjet 10ps or 20ps software RIP does not appear as it is not a plug-in of - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 38
8.0". Choose: • Output: Composite • PostScript: Level 3 • Data: Binary (except in Windows NT where the recommended is ASCII) • Check Force Fonts to Download The printer does not support "Separation Setup...", which allows you to work with the different CMYK. After changing settings, go to - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 39
Change "Data" to ASCII if working in Windows NT To complete the printing path, access the printer specific settings by clicking on the "Properties" button beside the printer name. Refer to the section "Printer driver settings for Windows" to complete the process. Software Applications Notes 39/59 - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 40
to get the best approximation possible of your color settings on your monitor) o Scanner: Select the ICC Profile of your scanner. o Composite Printer: Select None o Separations printer: select the ICC profile of your press. By default, there are no ICC press standards to choose although there is an - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 41
4.4.2 Changing the type file In Corel Draw, we talk about bitmaps and vector objects. To convert any bitmap to CMYK color mode you should: • Go to the Pick tool • Click Bitmaps -> Mode ->CMYK Color On the other hand, when converting a vector to CMYK you should: • Select the object with the Pick tool - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 42
Use PPD" and then browse looking for the right PPD for your printer in the following directories: For PC and HP Designjet 10ps: "C:\Program Files\hp designjet 10PS\PPD\" For PC and HP Designjet 20ps: "C:\Program Files\hp designjet 20PS\PPD\" And finally, in the PostScript tab select: • Compatibility - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 43
output you want on your monitor. o Monitor simulates: Select "Separation Printer" as what we want to emulate is the final press. This indicates the maximum match on the monitor (related to the previous setting) o Separation Printer: Use the ICC profile of your press or choose a regional standard ICC - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 44
of the printer. You can find the PPD file for your HP Designjet 10ps or 20ps in the following default directories: For MAC and HP Designjet 10ps: "HDD::hp designjet 10PS:PPD" For MAC and HP Designjet 10ps:" HDD::hp designjet 20PS:PPD" For PC and HP Designjet 10ps: "C:\Program Files\hp designjet 10PS - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 45
the media and print quality To complete the printing path, you need to access the printer specific settings by changing "Freehand 9" tab to "Printer Specific Options". Refer to the section "Printer driver settings for MAC" to complete the process. 4.6 Printing from Adobe InDesign 1.5 4.6.1 InDesign - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 46
• Go to "File->Color Settings->Document Color Settings" if you are using a MAC computer and go to "Edit->Color Settings->Document Color Settings" if you are in Windows. • Enable the "Enable Color Management" check box. • Fill in the values for the "Source Profiles" area (ICC Input Profile area): o - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 47
to the section "Printer driver settings for MAC" to continue the process. Moreover you will see that there is another section called "Color". If you go there, you will have the possibility to separate colors and change the screening. The HP Designjet 10ps or 20ps does not support these settings. We - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 48
to the section "Printer driver settings for MAC" to continue the process. Moreover you will see that there is another section called "Color". If you go there, you will have the possibility to separate colors and change the screening. The HP Designjet 10ps or 20ps does not support these settings. We - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 49
5. Printer driver settings Hewlett-Packard Designjet 10ps or 20ps have been specially developed to work with the Adobe PostScript driver. Although other drivers may work also without problem, we recommend using the Adobe PostScript driver at all times. For this reason, the information in this - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 50
• The printer has the following hardware margins: The driver cannot override these margins. This means that, if for instance you select an A3/B page size, the printable area will be the A3/B size minus the margins. This information is included as "Margins" and it is passed to the application but - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 51
Make sure you select the media type you are going to use. We recommend using HP Proofing media. • Check Print Mode: Select the print quality you want to use. for getting a vivid final output. It is suitable for business graphics (charts, presentations, etc.). Not recommended for color matching. • - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 52
that gives you the better color accuracy possible with the HP Designjet 10ps or 20ps series printer. • Ignore Calibration Curves when printing: Select 12 to from printer to printer cannot be guaranteed. For further information about the non-related color settings please consult your User's Manual CD - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 53
The minor difference is that instead of having a scroll bar option in the "Printer Specific Options" tab to move upwards and downwards, here you have two different tabs named "Printer Specific Options 1" and "Printer Specific Options 2" where you find the same information as in the Adobe PostScript - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 54
on the operating system 6.1 Windows 98 and Me To access the Printer Specific Options in the Adobe PostScript Windows driver for Windows 98 and Millennium (Me) you should click on the printer' settings and then go to "Device Options" tab. There you will - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 55
. It is suitable for business graphics (charts, presentations, etc.). Not accuracy possible with the HP Designjet 10ps or 20ps series printer. • Ignore Calibration Curves HP Proofing media and Best Mode For further information about the non-related color settings please consult your User's Manual - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 56
Printer Features" The settings that appears in the Printer Features section and that affect the color pipeline are: • Media Type and Print Mode: We recommend selecting HP a vivid final output. It is suitable for business graphics (charts, presentations, etc.). Not recommended for color matching - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 57
that gives you the better color accuracy possible with the HP Designjet 10ps or 20ps series printer. • Ignore Calibration Curves when printing: Select 12 in from printer to printer cannot be guaranteed. For further information about the non-related color settings please consult your User's Manual - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 58
if you open an EPS or TIFF image using an application, and then you use the Adobe PostScript driver to send the image to the printer, you are not sending EPS or TIFF information but PostScript that does not contain color information embedded. In this case, either you prefer the color - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 59
contains the specific information of a printer. PPD stands for PostScript Printer Descriptor and is only needed for PostScript drivers. The PPD for the HP Designjet 10ps can be found at: For MAC : "HDD::hp designjet 10PS:PPD" For Windows : "C:\Program Files\hp designjet 10PS\PPD\" (when using the - HP Designjet A3/B | How to get good color accuracy in a Proofing Workflow - User - Page 60
Notice All rights are reserved. No part of this document may be photocopied, reproduced, or translated into another language without the prior written consent of Hewlett-Packard Company. The information contained in this document is subject to change without notice and should not be construed as a
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HOW TO GET GOOD COLOR ACCURACY IN A
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Notes about the document
This document is based on the hp designjet 10PS and 20PS series printers.
This document contains both Mac and PC screenshot versions. The look and feel is almost the same
(minor differences due to using different operating systems) although names and functionality are
the same.