Trap Function (518, 528, 530 Only); Trap Measurement Mode; Setting Options - X-Rite 500 Series Operator's Manual

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.
TRAP

Setting Options

Pressing the Enter key # with the
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)
D
=
T
P
Newsprint Trap formula
log 1+
T =
N
T R A P - R E F
> P a p e
O v e r P
I n k 2
I n k 1
^
< S e l e c t M o d e >
−
D
OP 1
×
100
D
2
⎛
−
D D
⎜
OP
−
⎝
D D
M OP
⎛
D
⎜
2
log 1+
−
⎝
D D
M
I N S T R U M E N T F U N C T I O N S
O p t i o n s
V 0.13
C 0.12
M 0.13
Y 0.22
Options
⎞
⎟
1
⎠
×
100
⎞
⎟
⎠
2
T
menu
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