Operator`s manual

CHAPTER FIVE
5-32
Brunner Trap formula
()
T
B
=
−
−
×
−
−+
110
110
100
12
D
DD
OP
Where:
• D
OP
= Density of overprint - paper
• D
2
= Density of 2
nd
ink - paper
• D
1
= Density of 1
st
ink - paper
• D
M
= Maximum printing density
To set option:
1. With the Trap Formula editor displayed, press the
Tab keys $@ to move the highlight to desired setting.
2. Press the Enter key # to select highlighted setting.
The setting is now saved in the instrument.
NOTE: The formula option selected will revert back to its original
setting if the Enter key # is not used to exit the editor.
Measuring /Editing Dmax Procedure (for
Newsprint Formula Only)
Dmax can be calculated by simply measuring the V, C,
M, and Y solid patches, or values can also be manually
edited.
To measure Dmax:
1. If not selected, press the Tab Up key $ or Tab Down
key @ to highlight Dmax. <Measure Dmax> appears
in the user dialog. The values displayed are the
current VCMY values set in the instrument.
2. Lower the instrument to the shoe and release when
<
Measure Black> appears in the user dialog.
TRAP-REF
Options
Dmax
Paper
OverP
Ink2
^
V 3.64
C 3.73
M 4.17
Y 4.44
<Measure Dmax>
T