Halftone Screen - Kyocera TASKalfa 420i User Manual

Imaging

Halftone Screen

Setting the Halftone Screen
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Halftone Screen lets an experienced user print different shades of gray as are
found in photographs. Shades are produced by printing dots of various sizes
and shapes, and by spacing them closer or farther apart. Shading can also be
adjusted by the number of rows of data, the angle of the rows, and the shape of
the data.
Halftone Screen is available when KPDL or XPS is selected as the PDL. It is
unavailable if GDI compatible mode is selected in the PDL Settings dialog
box.
Halftone Screen provides a means to apply shades of gray to black and white
printed output.
In the Imaging tab, click Graphics > Halftone Screen.
Clear the Use printer's default screens check box.
Set the available options to the desired values:
Ink
Lists the halftone screens available. This option is grayed out and
permanently set to black for black and white printers.
Frequency
Displays the number of rows of dots per inch or centimeter. Set the range
from 2.0 to 999.9, and select lines/inch or lines/cm.
Angle
Sets the angle at which rows are aligned. Set the range from -180 to 180
degrees.
Shape
Select the shape of the halftone dot:
Ellipse
Resists optical jump. An optical jump occurs when an area of an image
suddenly become darker. An ellipse shape provides a smooth gradation of
tones. Select Ellipse 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.
Select Round for images with light tints and highlighted areas.
Line
Used for special effect. Select Line to change the effect by selecting a
different angle.
Select Increase accuracy of screens for better print quality, possibly
increasing print time.
Click OK.
User Guide