Epson AcuLaser C8600 Reference Manual page 57

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 graphs and charts.
Photo
Suitable for printing photos.
PhotoEnhance4
Suitable for printing images captured using the video input, a
digital camera, or scanner. EPSON PhotoEnhance 4 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 equipment such as a scanner or a display 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 regular printing that gives priority to high-quality
printing.
Using the Printer Software with Windows
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