User manual

26 • IT8 calibration & device-independent color
ColorQuartet 5.0 Pro
213
Performing IT8 calibration
Before starting, please note that the IT8 calibration procedure will take a few minutes.
1 • Depending on which scanning mode you want to calibrate for, mount the IT8 transmission
target or IT8 reflection target on the drum or mounting plate.
2 • Make a preview scan of the entire calibration target.
3 • In the Preview window, draw a crop frame that includes the entire area with the color
patches.
4 • From the Calibration menu, choose Do IT8 Scan.
5 • When the image comes up on the screen, draw a crop frame that includes only the area
with the color patches.
6 • From the Calibration menu, choose IT8 Calibrate.
7 • Open the reference data file that has the same ID number as the target you mounted.
8 • When the calibration process is complete, a message will appear on the screen telling you
whether it was successful.
• IMPORTANT: make sure the target is mounted so that it will be shown head
up and right reading (not mirror image) on screen, and that it is exactly par-
allel to the mounting plate or to the horizontal guideline on the scanner
drum.
• A set of squares outlined in white will appear. The squares frame each color
patch so that they can be individually analyzed by the calibration program.
• IMPORTANT: make sure that one and only one color patch is visible in each
square! If not, redraw the crop outline until the squares are lined up cor-
rectly.
• The Open File dialogue will appear.
• IMPORTANT: the reference data file and the target you scan must always have
the same number. Otherwise, the calibration will be incorrect. ColorQuartet
reads the text from the reference file but does not overwrite it. The text file
remains intact as a reference for the next time you want to calibrate.
• The reference data file must be in a location that can be seen by both the
scanner computer and the interface computer – for example, the same loca-
tion as your preview scans.