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Scanner Parts
* Before connecting the scanner to a power source, release the
transportation lock (turn it down to the unlock position).
Scanner Specifications
Basic Specifications
Scanner type Flatbed, color
Photoelectric Color matrix CCD
device
Effective pixels 13600
×
18720 pixels at 1600 dpi,
100% scaling
Maximum US letter or A4 size
document size (8.5
×
11.7 inches [216
×
297 mm])
Up to legal size if using the optional auto
document feeder (the reading area can be
specified from software)
Optical resolution 1600 dpi
Maximum 1600 dpi (main scan)
×
3200 dpi
hardware (sub scan)
resolution*
* The maximum hardware resolution of 1600 × 3200 dpi is achieved
using EPSON’s Micro Step Drive
™
technology.
Maximum 12800 dpi
interpolated
resolution
Speed (1200 dpi, Color and grayscale: 8.7 msec/line
draft mode) (approximate)
Line art: 3.0 msec/line (approximate)
Output resolution 50 to 12800 dpi
(50 to 6400 dpi in 1 dpi increments,
12800 dpi and 9600 dpi, 12800 dpi and
9600 dpi performed with zoom function)
Command level ESC/I-B8
Zoom 50% to 200% in 1% increments
Pixel depth 14 bits per pixel
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 halftoning modes (A, B, and C)
4 dither patterns (A, B, C, and D) for
bi-level and quad-level data
2 user-defined dither patterns
Gamma correction 2 types for CRT display (A and B)
3 types for printer (A, B, and C)
1 type for user-defined
carriage
(in the home position)
transportation
lock*
document
cover
option connector
SCSI ID
rotary switch
Front View
USB interface
connector
Transparency Unit
(optional, included with EPSON
Perfection 1640SU PHOTO)
Back View
SCSI interface
connector
document
table
Start button
indicator
light
Operate
button
Auto Document Feeder
(optional, included with
EPSON Perfection
1640SU OFFICE)