X-Rite 504 SpectroDensitometer Betreibershandbuch Seite 85

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Seitenansicht 84
INSTRUMENT FUNCTIONS
5-31
Trap Function (518, 528, 530 only)
The Trap function determines how well one ink prints
over another ink (overprinting). You should select the
Trap Display Mode and set the Options before measuring.
Trap Measurement Mode
Your instrument can evaluate trap data two different
ways: as straight measurement data, or as difference
(minus reference) measurement data. Pressing the Enter
key # with the Trap mode highlighted alternates between
Trap and Trap Minus Reference.
Setting Options
Pressing the Enter key # with the Options menu
highlighted opens the Trap Formula Editor. The formula
used to calculate trap is selected from this editor.
Formula
Trap is calculated using one of three formulas:
Preucil (GATF) Trap formula (factory default)
T
DD
D
P
OP
=
×
1
2
100
Newsprint Trap formula
T=
log 1+
DD
DD
log 1+
D
DD
100
N
OP 1
MOP
2
M2
×
TRAP-REF
Options
>Pape
OverP
Ink2
Ink1
^
V 0.13
C 0.12
M 0.13
Y 0.22
<Select Mode>
T
TRAP
Seitenansicht 84
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