Specifications

CALIBRATION 55
Calibration and halftone screens
When proofing, we recommend that you print in continuous tone mode, which uses the best
color in the Fiery system. For advanced proofing purposes, EX700i also offers user-controlled
halftone generation. Halftoned proofs simulate, with reasonable accuracy, the final dots
imaged on films or plates for offset printing.
You can select preset halftone screens to print jobs with good results. When you must
customize the values for a halftone screen, define a custom halftone in your application or in
Command WorkStation. For information about the procedure to specify custom halftone
screen values, see Command WorkStation Help.
When color quality is important, make sure that the EX700i is calibrated for the particular
halftone screen that you use. Changing a halftone screen usually modifies the color response
of the digital press.
The best color is achieved when an output profile that is associated with the appropriate
calibration response is selected at print time. However, when custom halftones are specified,
the EX700i does not have adequate information about the resulting color response. For this
reason, achieving good color with custom halftone screens is often possible only when you
perform custom halftone calibration and use a profile based on this custom halftone. For
more information, see “Custom calibration settings and output profiles” on page 54. When
you create a custom calibration setting, you specify the custom halftone screen in Job
Properties.