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Calibrate a media family
[253] Calibration chart
7. Measure the charts. (
8. Read the feedback information. (
• When the differences with the previous media family calibration are absent or very small,
you can decide to reject the new calibration values.
• When calibration measurements seem to be inaccurate, calibration charts could have been
printed with artefacts or on the wrong media. Check the prints and the job media.
• When there are no visible artefacts and the chart media were correct, the manual chart
measurements were possibly executed with small inaccuracies. You are strongly advised
to redo the media family calibration.
• When the measurement accuracy results do not improve, there can be another problem.
The heatmap can indicate a possible problem, but cannot analyse the problem. Similar
patterns of reddish patches that appear after several media family calibrations can indicate
that there is a structural problem. Carefully check your job prints if there is a print quality
problem.
• When one or more primary colours or the paper white value deviate from the reference
values calibration charts could have been printed with artefacts or on the wrong media.
Check the prints and the job media.
9. Finish the media family calibration when you accept the results. Close the calibration
procedure when you want to reject the calibration values.
238
Chapter 10 - Print what you expect
Measure charts with the i1 spectrophotometer on page
Read media family calibration feedback on page
247)
239)
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