Local And Pc Copy Principles; Local Copy Process - Epson STYLUS Scan 2500 Service Manual

EPSON Stylus Scan 2500

2.4 Local and PC Copy Principles

This section covers the main differences between Local Copy and PC Copy
operations.
Local Copy = Scan and print the scanned document using only the
V
Stylus Scan processing power. Can be connected or not connected to
a computer.
PC Copy = Scan, process the scanned document in the open
V
application, and print from the application.
Mode
B/W Normal
B/W Fine
Color Normal
Color Fine
Color Photo
Operating Principles
Stylus Scan 2500 Local Copy
Scan Res. Print Res.
Setting
dpi
300 360x360
600 720x720
300 360x360
600 720x720
600 720x720
Local and PC Copy Principles

2.4.1 Local copy process

Scan > gamma curve > color matching table > print
1. The scanner scans at 300 or 600 dpi.
2. The image data is processed through the gamma curve to remove the
background color of plain paper or photo paper. Unlike the Stylus Scan
2000, this image processing includes MicroWeave, halftones, and so on.
3. The color matching table is consulted to convert RGB to CMYK.
4. The printer prints at 360 x 360 or 720 x 720 dpi, and color is full color.
Dot Size Media
dpi
Normal Plain Paper
Variable Plain Paper
Normal Plain Paper
Variable Plain Paper
Variable Photo Paper
Original Doc. Background Color
Type Removal
Text - Busi-
Newspaper color
ness doc.
Photo - Text & EPSON Photo Quality
Photo Inkjet paper color
Text - Busi-
Plain paper color
ness doc.
Photo - Text & EPSON Photo Quality
Photo Inkjet paper color
Photo only No color removal
Revision A
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