Epson DFX-8000 User Manual page 156

Graphics
In the figure on the previous page, you can see the main rules for
graphics design in the three densities:
In single-density, no dots can be placed on vertical lines.
l
In double-density, dots can be placed on vertical lines, and they
l
c a n o v e r l a p .
In high-speed double-density, dots can be placed on vertical
l
lines, but no dots can overlap.
After choosing the desired density, you design your fiie by
plotting dots on graph paper.
The high-speed double-density design shown below should point
you in
the right direction for your own work.
After plotting the <dots on a g&l, you calculate thenumbers for
each pin pattern by dividing the design grid into separate print
lines. For the arrow design, the grid was divided into two lines,
each seven dots high. Then each column was examined to calculate
the graphics data. The results for the first line are shown in the
figure on the next page. The pin values are on the left and the sums
at the bottom of each column.
4-18
Software and Graphics