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F1 MENU Place the unit in the STOPPED Mode and press
1=CHAR. SPACING
2=EXT. ENCODER
3=DATE OFFSET
4=BARCODE
< - - SELECT - - > # OF SPACES- 1
. The screen shown to the left is produced.
Press the correct number to make changes to that
parameter. Those selections not available will
display NOT AVAILABLE. They are reserved for
future system expansion.
1 = CHARACTER SPACING
This parameter controls the amount of space
between characters in the code. Spacing can be
varied from 1 to 25 columns. Use this control to
make printed codes more legible when code is
compressed. Press the
then press
or
to
change the value. Press
once the desired value is displayed. 2 = EXT. ENCODER Press
ENCODER 1=INTERNAL 2=EXTERNAL
to select internal time base. This
parameter controls the source of the time base used
for printing. Each vertical column printed requires a
signal
necessary
to
produce
a
character
representative of the line speed of the production
line. The printer can be set to produce a perfect
aspect ratio character (300 dpi vertical and horizontal) or compressed by setting
the print head line speed faster than the actual line speed, or expanded by
changing the internal speed slower than the actual line speed.
In the event there is an acceleration or deceleration to the production line, or
there is a requirement to guarantee accurate aspect ratio, such in the case of
barcodes, an external encoder is necessary. Press
to select external
encoder. While external encoder is selected the LINE SPEED key
will adjust
the expansion and compression of the printed message. NOTE: WHEN
PRODUCING BARCODES IT IS NECESSARY TO PRODUCE A PERFECT
ASPECT RATIO CHARACTER.
Swath height is 0.500 (1/2”) / 150 vertical dots = 0.0033” between vertical dots
Therefore to print a perfect aspect ratio character requires an encoder pulse
every 0.0033”. The encoder range adjustment is from 0 to 7 and assuming the
mean is a count of 4 then by connecting an encoder that produces a pulse for
each 0.000825” the correct character aspect ratio can be achieved. This allows
either compression or expansion of the printed text.
In STOPPED mode the external encoder is ignored and the internal time base is
used to print a message.
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EVOLUTION LX SYSTEM MANUAL Issue 1.0 5 DEC 2009