Scanning - Epson PERFECTION 1240U Reference Manual

Scanning

Scanner type
Photoelectric device
Effective pixels
Document size
Scanning resolution
Output resolution
Color separation
Zoom
Image data
Brightness
Line Art settings
Halftoning process
Gamma correction
Flatbed, color
Color CCD line sensor
10200 × 14040 pixels at 1200 dpi, 100%
216 mm × 297 mm (8.5 inches × 11.7 inches)
A4 or US letter size (The reading area can be
specified from your software.)
1200 dpi (main scan)
2400 dpi with Micro Step (sub scan)
50 dpi to 9600 dpi
(50 to 4800 dpi in 1 dpi increments, 7200 dpi,
and 9600 dpi. 7200 dpi and 9600 dpi
performed with zoom function)
RGB color filters on CCD
50% to 200% in 1% increments
14 bits per pixel per color internal
14 bits per pixel per color external
7 levels (In EPSON TWAIN, Gamma correction
controls Brightness)
Fixed threshold
Text Enhancement Technology
(enable/disable selectable)
AAS (Auto Area Segmentation)
Enable/disable selectable
3 halftoning modes (A, B, and C) and
4 dither patterns (A, B, C, and D) for
bi-level and quad-level data
(2 downloadable dither patterns)
2 types for CRT display
3 types for printer
1 type for user-defined
Technical Specifications
A-3