EPSON Perfection 640U
10/00 EPSON Perfection 640U
- 1
Scanner Parts
Scanner Specifications
Basic Specifications
Scanner type Flatbed, color
Photoelectric Color CCD line sensor
device
Effective pixels 5100 × 7020 pixels at 600 dpi,
100% scaling
Maximum US letter or A4 size
document size (8.5 × 11.7 inches [216 × 297 mm])
Optical resolution 600 dpi
Maximum 600 dpi (main scan) × 2400 dpi
hardware (sub scan)
resolution*
* The maximum hardware resolution of 600
×
2400 dpi is achieved
using EPSON’s Micro Step Drive
™
technology.
Maximum 9600 × 9600 dpi
interpolated
resolution
Speed (600 dpi, Color: 16 msec/line
draft mode) Greyscale: 5.3 msec/line
Output resolution 72 to 9600 dpi
Command
level
ESC/I-D1
Zoom 50 to 200% in 1% increments
Pixel depth Color: 12 bits/pixel (input)
8 bits/pixel (output)
Brightness 7 levels
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
Note: Check the label on the back of the scanner for voltage
information.
document
cover
document
table
carriage (in the
home position)
indicator
light
Start button
Copy button
Scan button
transportation lock
USB interface
connector
DC inlet
Specification
Input voltage range DC 24 V
Rated current 0.8 A
Power
consumption
Approx. 17 W
