Color Calibration

Using ColorPort

Utility Software

This chapter discusses how to perform Calibration. All processes that need to be performed before calibration are discussed in earlier chapters.

Calibration is when you check and adjust (by comparison with a standard print) the accuracy of the printed output. The Xerox 490/980 Color Continuous Feed Printing System uses the calibration process to ensure the best possible printed output.

To perform calibrations, you must have the CMS Option Tool loaded. Information on how to install the CMS Option tool is located in Chapter 2.

For calibration on the Xerox 490/980 Color Continuous Feed Printing System, it is recommended that you use the X-Rite Eye-One iSis spectrophotometer measuring device and the ColorPort

Utility Software. See Chapter 3

Download ColorPort Utility Software

for information on how to obtain the latest version of the ColorPort Utility Software.

6

Color Management Guide 6-1

Color Calibration Using ColorPort Utility Software Xerox 490/980 CCF Printing System

Color Calibration

Before performing color calibration, set the cutter to A3 and ensure that all color settings for both printers are set at 4 (C,M,Y,K).

1.

Select the CMS Option Tool icon from the PC-GUI.

2.

Select the [Print Colorimetric Pattern] tab.

3.

Select the colorimetric pattern to print from the pull-down menu. For Calibration, select

(Eye-One iSis).

4.

Select [Print].

5.

Select [Yes] to continue. After printing is complete, select one sample of the following test patterns and cut around the dotted lines neatly:

Test Pattern Names

For Upstream Halftone Dot

EyeOneiSis_up_Calib.rnd_1 (299)

EyeOneiSis_up_Calib.rnd_2 (299)

EyeOneiSis_up_Calib.rnd_3 (299)

For Downstream Halftone Dot

EyeOneiSis_dn_Calib.rnd_1 (299)

EyeOneiSis_dn_Calib.rnd_2 (299)

EyeOneiSis_dn_Calib.rnd_3 (299)

For Upstream Error Diffusion

EyeOneiSis_up_Calib.rnd_1 (299)

EyeOneiSis_up_Calib.rnd_2 (299)

EyeOneiSis_up_Calib.rnd_3 (299)

For Downstream Error Diffusion

EyeOneiSis_dn_Calib.rnd_1 (299)

EyeOneiSis_dn_Calib.rnd_2 (299)

EyeOneiSis_dn_Calib.rnd_3 (299)

6-2 Color Management Guide

Xerox 490/980 CCF Printing System Color Calibration Using ColorPort Utility Software

Using ColorPort for Color Calibration

Open the Colorport software. Select [Start: Programs: Colorport] on your PC or select

[Colorport.exe] on the desktop.

1.

Select the [Measure Target] tab.

2.

Select the Target pull down menu. Select the name of the first test pattern, (ex:

EyeOneiSis_up_Calib.rnd_1). The “EyeOneiSis” refers to the measuring device.

3.

Select the measuring device [X-Rite Eye-One iSis].

4.

Select [Connect].

5.

After the pop-up window appears, place the test pattern into the reader, image facing up.

You may need to hold the test pattern as the reader begins.

6.

When the EyeOneiSis has completed the reading of the printed pattern, select [Save Data].

7.

Select the Format pull down menu and select [CGATS]. Spectral Range is 400nm - 700nm and Value Scale is 0-100.

8.

Select [Save].

9.

A save screen will open. Select the name that matches the name of the test pattern

(upstream, downstream, error diffusion, halftone dot). Older files can be used as naming templates to create a name. An example of how a file should be named is:

Date_Printer_Filetype_Scan #.txt.

10. Select [Save]. A pop-up window will appear asking if you wish to replace it, select [Yes].

11. Repeat the above steps (except steps 2 and 3) for each test pattern. When completed, close

Colorport.exe.

12. On the CMS Option tool, select the [Create Calibration Data] tab.

13. Select paper name.

14. Specify a measured data file for Upstream (Printer1): a.

Halftone Dot: select [Browse] and select file [EyeOneiSis_Cal_299_up_(HD)] with today’s date.

b.

Error Diffusion: select [Browse] and select file [EyeOneiSis_Cal_299_up_(ERRD)] with today’s date.

15. Specify a measured data file for Downstream (Printer2): a.

Halftone Dot: select [Browse] and select file [EyeOneiSis_Cal_299_dn_(HD)] with today’s date.

b.

Error Diffusion: select [Browse] and select file [EyeOneiSis_Cal_299_dn_(ERRD)] with today’s date.

16. Select [Execute] and then [Yes]. When completed, select [OK] and close the previous window.

Color Management Guide 6-3

Color Calibration Using ColorPort Utility Software Xerox 490/980 CCF Printing System

6-4 Color Management Guide