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Calibrating the Colors of the Printing System
Calibrating the Colors of the Printing System — Overview
Introduction
All the colors used in the printing system can be calibrated and as a result the active raster
kit adjusted by using the 'Calibrate color' menu. Two different types of color calibration
are supported:
■
Manual Calibration
Print samples are taken and manually tested using a handheld measuring instrument.
The measured data is then used to adjust the active raster kit.
Manual calibration can be carried out either on the console of the operator panel or
on an external measuring station.
■
Automatic Calibration
The measured values from the control strips, which are determined automatically
during the print operation, are used to calculate the new raster kit.
Attention:
Color calibration should always be carried out with well aligned coloration levels of the
individual colors and with proper expendables.
Note:
In the standard version, the 'Calibrate color' menu can be displayed from the "Key
Operator" user group. If necessary, a "Key Operator" for the "Operator" user group can
activate the menu.
Note:
Automatic calibration can only be performed if the relevant raster kit or toner has already
been calibrated manually on at least one occasion.
As an alternative to automatic calibration, the more elaborate process of manual calibra-
tion can be used if necessary.
Applications for Automatic Calibration
Automatic calibration should be performed:
■
If there are large differences in the tone transfer curve between the upper and the
lower print unit
Chapter 6 - Operating the Printing System 244
Calibrating the Colors of the Printing System — Overview