Kyocera TASKalfa 5500i/TASKalfa 4500i manual Setting the Halftone Screen

Imaging

Halftone Screen

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 is selected in the PDL Settings dialog box. It is unavailable when GDI compatible mode is selected in the PDL Settings dialog box.

Setting the Halftone Screen

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Halftone Screen provides a means to apply shades of gray to black and white printed output.

In Imaging > Graphics Settings, click 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. For black and white printers, this option appears unavailable and is permanently set to Black.

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.

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Select Increase accuracy of screens for better print quality, possibly increasing print time.

Click OK to return to the Print dialog box.

7-6 User Guide