F1 MENU
Place the unit in the Command mode and press
. The screen shown to the left is produced.
Press the correct number to make changes to that
parameter. Those selections designated as NOT
AVAILABLE will not respond to selection. They are
reserved for future system expansion.
1=CHAR. SPACING
2=EXT. ENCODER
3=DATE OFFSET
4=NOT AVAILABLE
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.
< - - SELECT - - >
# OF SPACES- 1
2 = EXT. ENCODER:
Press
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 (96 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.
ENCODER
1=INTERNAL
2=EXTERNAL
In the event there is an acceleration or deceleration to the production line, or
there is a requirement to guarantee accurate aspect ratio, 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. Selecting the correct encoder is important to allow for both
compression and expansion of printer text. The correct aspect ratio can be
calculated as follows:
Swath height is 0.125 (1/8”) / 12 vertical dots = 0.0104” between vertical dots
Therefore to print a perfect aspect ratio character requires an encoder pulse
every 0.0104”. 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 0.0026” the correct character aspect ratio can be achieved. This allows to
either compression or expansion of the printed text.
9
EVOLUTION SC
SYSTEM MANUAL Issue 1.1 15 November 2006
