Epson Expression 1680 - Manual

EPSON Expression 1680
1/01 EPSON Expression 1680 - 1
Scanner Parts
Scanner Specifications
Scanner
General
Scanner type Flatbed, color
Photoelectric
device
Color MatrixCCD ™ line sensor
Effective pixels 13600 × 18720 pixels (1600 dpi)
Optical density 3.6 Dmax
Color depth 48-bit internal/48-bit external
Grayscale depth 16-bit internal/16-bit external
Maximum
document size
8.5
× 11.7 inches (216 × 297 mm)
A4 or Letter (the reading area can be
specified from your software)
Optical resolution 1600 dpi
Maximum hardware
resolution*
1600 dpi (main scan)
3200 dpi with Micro Step Drive
™
(sub scan)
* The maximum hardware resolution of 1600 × 3200 dpi is
achieved using EPSON’s Micro Step Drive technology
Maximum interpolated
resolution
12800 × 12800 dpi
Speed
(1600 dpi,
draft mode)
Color: 9.2 msec/line (approx.)
Grayscale: 3.1 msec/line (approx.)
Line Art: 3.1 msec/line (approx.)
Color separation RGB color filters on CCD
Reading sequence Monochrome: One-pass scanning
Color byte sequence: One-pass scanning
(R, G, B)
Color line sequence: One-pass scanning
(R, G, B)
Zoom 50 to 200% in 1% increments
Command level ESC/I-B8
FS
Pixel depth 16 bits per pixel (16 bits per pixel input,
1 to 16 bits per pixel output)
Brightness 7 levels
Line art settings Fixed threshold
TET (Text Enhancement) Technology,
enable/disable selectable)
Digital halftoning AAS (Auto Area Segmentation,
enable/disable selectable)
3 error diffusion modes (A, B, and C)
4 dither patterns (A, B, C, and D) for
bi-level and quad-level data
(2 downloadable dither patterns)
Gamma
correction
2 types for CRT display
3 types for printer
1 type user-defined
document
cover
document
table
carriage
(at home position)
lights a Start button
P Operate button
SCSI interfaces
transportation lock
optional
interface slot
SCSI ID switch
terminator switch
USB interface
option connector
AC inlet