7 EVOLUTION 1 SYSTEM MANUAL Issue Issue 1.1 20 Dec 2006
The image below is a scanned image of two sample prints. The upper section of
code is produced at 60ft/min matching the line speed, while with the second
sample, the line speed was increased to 100 ft/min. It should be immediately
apparent at the difference in the optical density between both prints. This
variation will be more apparent on brown corrugated than on a white substrate.
Displacing adjacent vertical
columns farther than the correct
aspect ratio caused this lack of
optical density.
The pictorial at the right
is an expanded section
of the above code and
clearly defines the
correct versus incorrect
aspect ratio and should
be avoided.
It should also be noted
that the MINIMUM BAR
WIDTH parameter was
set to 6.
NORMAL OPTICAL DENSITY
DIMINISHED OPTICAL DENSITY
NORMAL ASPECT RATIO
BAD ASPECT RATIO
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