Epson AcuLaser C1900 Reference Manual page 53

Automatic (Standard)
Suitable for regular printing, especially photos.
Text/Graph
Suitable for printing documents that include text and graphs,
such as presentation documents.
Graphic/CAD
Suitable for printing graphics and charts.
Photo
Suitable for printing photos.
PhotoEnhance4
Suitable for printing video captures, images taken with a digital
camera, or scanned images. EPSON PhotoEnhance4
automatically adjusts the contrast, saturation, and brightness of
the original image data to produce sharper, more vivid color
printouts. This setting does not affect your original image data.
ICM (Except for Windows NT 4.0)
ICM stands for Image Color Matching. This feature automatically
adjusts printout colors to match colors on your screen.
sRGB
When using equipment which supports sRGB, the printer
performs Image Color Matching with these pieces of equipment
before printing. To confirm that your equipment supports sRGB,
contact your equipment dealer.
Automatic (High Quality)
Suitable for printing high-quality printing documents.
Advanced Text/Graph
Suitable for printing high-quality presentation documents that
include text and graphs.
Using the Printer Software with Windows
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