DC5 User’s Manual
Software 6-22
ELLIPSE LINE
RHOMBOID DOUBLE DOT
SINGLE DOT
The shape, shown in the enlarged section, is a result of the combination of a postscript
pattern, an angle and a frequency.
Ellipse is the recommended default shape. Rhomboid, Double Dot and other shapes can be
chosen for special effects but are not generally recommended. Summa cannot guarantee
print quality, using any shape other than Ellipse.
general guidelines for screen settings.
For difficult colors, use Rhomboid 0.8 to 1.1 lines /mm (20 to 30 lines/inch)
For more steps in gradients, use Double Dot 1 line/mm (25 lines/inch)
A standard setting for mid to large designs is Rhomboid 2 lines/mm (50 lines/inch)
Do Not Use Double Dot with line frequencies higher than 1.3 lines/mm (35
lines/inch), and only for relatively small images (smaller than one band width).
Severe banding may occur when the Double Dot shape is not used correctly.
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