Xerox CX 用户手册

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页码 184
3
Calibration
Calibration overview
Obtaining the most satisfactory print quality on your printer
depends on a number of issues. One of the most important issues
is steady toner density. Toner density is affected by many factors
such as heat, humidity, and service settings. Toner density also
tends to vary over time. Such variations cannot be totally
eliminated, but you can perform the calibration process to
compensate for them.
The calibration process consists of creating calibration tables that
are mapped to a specific media type, paper weight, and screening
method.
You can create calibration curves using either of the following
options:
Inline spectrophotometer: Enables you to automatically calibrate
and create profiles for your digital press. The automatic
calibration tool allows you to create calibration curves for
several screening types.
Calibration wizard: The Calibration wizard guides you through
printing a color chart, scanning the streams of color patches in
the color chart, and creating a calibration table based on the
scanned measurements.
The CX print server uses the data in this table to compensate for
the differences between the the actual, measured density level,
and the target level, the target density.
You should create calibration tables in the following instances:
When you use a new paper stock
When prints show “color casts”
After machine maintenance or hardware changes
If there are drastic ambient changes (temperature and humidity)
Every 24 hours, to compensate for potential variations in toner
density