Epson Perfection 640U Product Information Manual

Scanner Parts

document
Start button
cover
indicator
Copy button
light
Scan button
USB interface DC inlet
connector

Scanner Specifications

Basic Specifications
Scanner type Flatbed, color
Photoelectric Color CCD line sensor
device
Effective pixels 5100
100% scaling
Maximum US letter or A4 size
document size (8.5
Optical resolution 600 dpi
carriage (in the
home position)
document
table
transportation lock
7020 pixels at 600 dpi,
11.7 inches [216 297 mm])
Maximum 600 dpi (main scan)
hardware (sub scan)
resolution*
* The maximum hardware resolution of 600 2400 dpi is achieved
using EPSON's Micro Step Drive
Maximum 9600
interpolated
resolution
Speed (600 dpi, Color: 16 msec/line
draft mode) Greyscale: 5.3 msec/line
Output resolution 72 to 9600 dpi
ESC/I-D1
Command level
Zoom 50 to 200% in 1% increments
Pixel depth Color: 12 bits/pixel (input)
Brightness
Line art settings 1 bit/pixel
Digital halftoning Error diffusion: 3 modes (A, B, C)
Dither (resident): 4 modes (A, B, C, D)
Dither (user-defined): 2 modes (A, B)
Gamma correction 1 type for user-defined
Color correction 1 type for user-defined
Interface USB (Type B receptacle connector)
Light source White cold cathode fluorescent lamp
Reliability 30,000 cycles of carriage movements
(main unit MCBF)
Dimensions Width: 10.6 inches (26.9 cm)
Depth: 17.1 inches (43.5 cm)
Height: 3.7 inches (9.3 cm)
Weight Approx. 6.2 lb (2.8 kg)
Electrical
Specification
Input voltage range DC 24 V
Rated current 0.8 A
Power Approx. 17 W
consumption
Note: Check the label on the back of the scanner for voltage
information.
10/00
EPSON Perfection 640U
2400 dpi
™
technology.
9600 dpi
8 bits/pixel (output)
7 levels
EPSON Perfection 640U
- 1