Calibration; About Calibration - Canon imagePRESS C800 Series Operation Manual

Calibration

Calibration

About calibration

Calibration is very important in keeping the print quality high for color reproduction. The
environment of your print system influences the print quality. A constant temperature and
humidity are essential for consistent color output.
PRISMAsync automatically keeps the print quality as high as possible. However, additional
calibration is essential to keep the color reproduction level stable for all the media types you use.
PRISMAsync offers a structured workflow and feedback mechanism to integrate calibration into
your daily work.
There are two methods of calibration: the printer calibration and the media family calibration.
Printer calibration for print operators
Printer calibration has two procedures: automatic gradation adjustment and the shading
correction. In the Calibration window of the control panel, you can see which calibration
procedures you must perform. The control panel reminds you when to start a printer calibration
with an indicator. Load the calibration media as configured in the Setting Editor (see below).
[92] Calibration indicator
Configuration of the daily printer calibration
You are strongly advised to only configure the automatic gradation adjustment for the daily
printer calibration. This automatic gradation adjustment includes precise adjustments of the
gradation, density and color quality. A test print is used to scan and correct the irregularities
automatically. There are two modes for the automatic gradation adjustment:
• Standard
Advised for a standard print quality.
• Professional
Advised for professional print quality.
In the Settings Editor you can find the latest color calibration report.
In exceptional situations, when a very high print quality is required, you can add the shading
correction to the calibration procedure. For the shading correction you need the Eye-One
spectrophotometer. (
Media family calibration
PRISMAsync provides, as default, the coated and uncoated media families. A media family is a
set of media with the same output profile (one per halftone) and calibration values.
Before you start a media family calibration, always perform the printer calibration.
A media family calibration is necessary for the following situations:
• After the installation of the print system, for the default media families coated and uncoated.
• When a new media family is created.
• When a service replaces system parts.
160 Chapter 6 - Keep the image quality high
Calibrate for maximum print quality on page
165)
imagePRESS C800 Series