Epson ActionLaser 1400 Reference Manual page 36

Gray Scale
Specifies what halftone pattern to apply to grayscale
images. The options are Photographic Images (default),
Line Art images, and Scanned Images. Each option is
described below. The best way to choose a setting for your
images is to experiment. Print a grayscale image at each
setting and choose the one you like best.
Choose Photographic Images for images that you want to
have a smooth, realistic appearance. This setting provides
soft contrasts between shades of gray and works well for
images originally designed with color. At 300 dpi, the
printer uses an 8 bit-by-8 bit "clustered dot" method to
emulate 60 levels of gray. At 600 dpi, the printer uses a
16 bit-by-16 bit method to emulate 120 levels of gray.
Choose Line Art Images for images with intricate lines
and fine detail, such as clip art images. This setting
providessolid lines and sharp contrasts between shaded
areas. When Line Art Images is selected, the printer uses
8 bit-by-8 bit "dispersed dot" patterns to produce 32 gray
tones.
Choose Scanned Images for images that were originally
scanned. In this setting the printer uses a variation of
the 8 bit-by-8 bit "clustered dot" method used in the
Photographic Images setting. This method produces
60 levels of gray at 300 dpi and 120 levels at 600 dpi.
TrueType Mode
Specifies whether TrueType fonts are downloaded as
TrueType fonts or are first converted to bitmapped images
before being downloaded. By default, TrueType fonts are
downloaded as TrueType fonts.
2-10 Controlling the Printer