Imaging
User Guide 6-7
Grayscale
Use the Grayscale options to adjust the appearance of graphics and text produced
by monochrome printing systems, or by color models when the monochrome option
is selected.
Grayscale adjustment settings let you change the Brightness and Contrast of
graphics for monochrome printers. This feature is also available on color printer
models when the monochrome option is selected. Grayscale adjustment settings are
Angle Select the angle at which rows are aligned. An
angle is measured in degrees, ranging from -180 to
+180.
Shape Select the shape of the halftone dot. The choice for
the best halftone shape depends on the pattern and
number of colors for your image.
Ellipse Resists optical jump, which is when areas of
an image that should be smooth suddenly become
darker. An ellipse shape provides a smoother
gradation of tones. Choose for images with dark
areas.
Round Resists moiré formation and dot gain. Moiré
formation is an unintended pattern that occurs when
two or more colors are printed at the wrong angles.
The correct angles depend on the number of colors
being printed. Dot gain is when the halftone dots
increase when printed, causing a moiré pattern.
Choose for images with light tints and highlighted
areas.
Line Used for special effect. You can change the
effect by selecting a different Angle.
Increase accuracy of
screens
Uses a very precise halftone screen which provides
better print quality, but may increase printing time.
Halftone Screen
Option Description
Grayscale
Option Description
Print text as black Prints all color text as black. This is useful when you
want to reduce the amount of data sent to the printer
for color print jobs, which can provide faster printing.
It is also useful for increasing the detail for light
colored text printed by monochrome printers. White
text and image colors are unaffected.
Print graphics as black Prints all colors as black. This feature works for
vector graphics only, and is most useful for CAD
applications. Readability is improved for CAD
blueprints because different colored objects print
more clearly.
Gloss mode Simulates high-gloss copies by adding a glossy
appearance to printed text and images.
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