Epson perfection 4990 series User Manual

Epson Perfection 4990 Series

10/04

Epson Perfection 4990 Series - 1

Scanner type

Flatbed, color

Photoelectric

Color CCD line sensor

device

Effective pixels

40,800 × 56,160 pixels at 4800 dpi

Maximum 

US letter or A4 size

document size

(8.5 × 11.7 inches [216 × 297 mm])

Optical resolution 4800 dpi

Maximum 

4800 dpi (main scan) × 9600 dpi hardware 

resolution*

(sub scan)

*

The maximum hardware resolution of 4800 

× 9600 dpi is achieved 

using Epson’s Micro Step Drive

™

 technology.

Maximum 12,800 

dpi

interpolated
resolution

Output resolution 25 to 12,800 dpi (25 to 6400 dpi in 1 dpi 

increments; 12800 dpi performed with 
zoom function)

Speed (color)

12.3 msec/line at 4800 dpi
3.1 msec/line at 600 dpi

Pixel depth

16 bits per pixel (input and output)

Brightness

7 levels (in EPSON Scan, gamma 
correction controls brightness)

Interface

USB 1.1/2.0 (Type B receptacle connector)
IEEE 1394 (FireWire)

Light source

White cold cathode fluorescent lamp

Dimensions 

Width: 12.0 inches (30.4 cm)
Depth: 18.7 inches (47.6 cm)
Height: 5.3 inches (13.4 cm)

Weight

Approx. 14.8 lb (6.7 kg)

Document 
table

Carriage and 
lamp (in the 
home position)

USB port

Power cord

Transparency unit 
(TPU) connector

Transportation lock 
(in unlocked position)

]

 

Start button

Indicator 
light

P

 Power button

IEEE 1394 port

Transparency unit 
(TPU) under lid

Document 
mat

Transportation 
lock

Transparency unit 
(TPU) progress light