Calibration With A Densitometer (Gamma) - Xante ScreenWriter 3 Manual

Calibration with a Densitometer (Gamma)

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 Halftone
Calibration Technology, and you can create up to seven custom
gamma curves. You can select any custom or standard gamma curve on
a job by job basis using the front panel Gamma menu or the Print dialog
box Gamma PPD option. See "Dot Gain 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 Controller:
Linearize. The Linearization window appears (fig. 4.25).
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