Appendix A Technical Specifications; Scanning - Epson GT-5500 User Manual

Scanning

Scanner type:
Photoelectric device:
Effective pixels:
Document size:
Scanning resolution:
Output resolution:
Color separation:
Reading sequence:
Monochrome
Color page sequence
Color byte sequence
Color line sequence
Zoom:
Image data:
Brightness:
Line Art settings:
Halftoning process:
Gamma correction:
A-2
Technical Specifications
Flatbed, color
Color CCD line sensor
3400 4680 pixels at 400 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.)
400 dpi (main, sub)
50 dpi to 1600 dpi in 1 dpi steps
RGB color filters on CCD
One-pass scanning
Three-pass scanning (R, G, B)
One-pass scanning (R, G, B)
One-pass scanning (R, G, B)
50% to 200% in 1% increments
10 bits per pixel per color saved as 8 bits per
pixel per color maximum
7 levels
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