HP Indigo WS6000 Indigo High Quality Color Control HQCC Process for PSPs and B - Page 16

Color Engine Pilot, Preferences, Delta E Formula, Refine Spot Colors, Color on Target, Out of Gamut

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● Set Color Engine Pilot preferences - See procedure below. Set Color Engine Pilot preferences Perform the following steps in the Color Engine Pilot on the Esko Server. TIP: If Color Engine Pilot is not already open, locate the shortcut on the Desktop. - Open the Preferences window: Edit > Preferences. - Click the General button and set the following preferences: ○ In the Delta E Formula section: ● Set the Delta-E formula - Use Delta-E 2000. ● Set the Density formula to ANSI T. NOTE: Density Formulas - The Density Formula must be set to the same formula used by the measuring device. ANSI T must be used to match the density formula used by the spectrophotometer (SPM) on the HP Indigo press. Refer to Density Filter (Density Formula) on page 42 ○ In the Refine Spot Colors section: ● Set the Delta-E tolerance: - Out of Gamut - Color on Target NOTE: When setting the tolerance - For the best results, set the Color on Target setting much lower than the Out of Gamut value. ● Out of Gamut is the preferred Delta-E tolerance. ● The Color on Target setting is used by the software for the spot color refinement, and will attempt to achieve this value during refinement. 12 Chapter 3 Detailed production processes

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●
Set Color Engine Pilot preferences — See procedure below.
Set Color Engine Pilot preferences
Perform the following steps in the
Color Engine Pilot
on the Esko Server.
TIP:
If Color Engine Pilot is not already open, locate the shortcut on the Desktop.
–
Open the
Preferences
window:
Edit > Preferences
.
–
Click the
General
button and set the following preferences:
○
In the
Delta E Formula
section:
●
Set the Delta-E formula — Use
Delta-E 2000
.
●
Set the Density formula to
ANSI T
.
NOTE:
Density Formulas
— The Density Formula must be set to the same formula
used by the measuring device. ANSI T must be used to match the density formula
used by the spectrophotometer (SPM) on the HP Indigo press.
Refer to
Density Filter (Density Formula)
on page
42
○
In the
Refine Spot Colors
section:
●
Set the Delta-E tolerance:
–
Out of Gamut
–
Color on Target
NOTE:
When setting the tolerance
— For the best results, set the
Color on Target
setting much lower than the
Out of Gamut
value.
●
Out of Gamut
is the preferred Delta-E tolerance.
●
The
Color on Target
setting is used by the software for the spot color refinement,
and will attempt to achieve this value during refinement.
12
Chapter 3
Detailed production processes