Xante PlateMaker 3, Руководство пользователя

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3-32 Macintosh Setup bb ____________________________________
Calibration with a Densitometer (Gamma)
Your printer’s densitometer support allows you to use gamma curves
to adjust your printer’s performance to eliminate inconsistencies due
to equipment age, to different toners, press inks, and media, and to
environmental conditions.
The XD-1 (XANTÉ densitometer), combined with XANTÉ
Command Center software, measures grayscale output for calibration
and proofing. This affordable, easy-to-use densitometer will be used
in this manual for example purposes.
Seven standard curves are supplied with XANTÉ’s Halftone
Calibration Technology, and you can create up to seven custom
gamma curves. You can select any of the custom or standard gamma
curves on a job by job basis using the front panel Gamma menu or
the Gamma PPD option in the Print dialog box. See “Halftone
Calibration Technology (Gamma)” in chapter 6 for details.
Custom curves are created using XANTÉ Command Center and a
densitometer using the following steps:
• Printing a Calibration Page
• Using the Densitometer
• Linearizing the Densitometer Data
Printing a Calibration Page
To begin calibrating your printer, print a calibration page to measure
the printer’s current performance as a basis for the calibration.
1. Open XANTÉ Command Center and choose Graphics:
Linearization. The Linearization window appears (fig. 3.15).