User's Manual

Dot Functions
4-74-7
DOT GAIN FUNCTION
Dot gain measurement compares the tint percentage of a color patch
on paper to the intended tint percentage produced on the film.
Your first dot gain measurement compares the dot percentage of the
measured patch to the first reference value (r1). The difference
between the reference value and the measured value is calculated as
dot gain the amount the ink dots have spread on the paper.
If needed, you can adjust the Reference values to meet your specific
needs. These procedures are covered next. If you wish to simply use
the factory preset reference values, you can skip ahead to “Dot Gain
Measurement.”
Adjusting Dot Gain Reference Values
Once dot gain measurement (DOT GAIN) mode is selected, PAPER
appears in the display.
1. Press ZERO. REF appears in the display momentarily, followed
by one of the reference valueseither r1, r2, or r3.
2. When the color and reference value you wish to change appear
in the display, use ZERO (ts), ENTER (s), and
FUNCTION (t) buttons to adjust the value.
Press and hold ZERO, then press ENTER (s) to raise the
value;
Press and hold ZERO, then press FUNCTION (t) to lower
the value.
When you change the preset values, they are turned “off.” Your
new reference values can be set within the following ranges.
r1 can be set between 1% and 45%.
—r2 can be set between 46% and 64%
r3 can be set between 65% and 100%
These value ranges apply to both optics.
3. Advance to the next reference value, then repeat #2; or press
ZERO to advance to the next reference value, either r1, r2, or r3.
< 75 {
PAPER