Epson Perfection PHOTO 2450 User Manual

EPSON Perfection 2450 PHOTO

Scanner Parts

Start button

indicator

power button

transparency unit

(TPU) under lid

USB port

IEEE 1394 port

document
cover

light

document

transparency unit

(TPU) connector

table

carriage and lamp

(in the home

position)

transportation lock

(in unlocked position)

power cord

Maximum US letter or A4 size
document size (8.5 × 11.7 inches [216 × 297 mm])

Optical resolution 2400 dpi

Maximum 2400 dpi (main scan) × 4800 dpi hardware
(sub scan)
resolution*

* The maximum hardware resolution of 2400 × 4800 dpi is achieved

using EPSON’s Micro Step Drive

™

technology.

Maximum 12,800 dpi
interpolated
resolution

Output resolution 50 to 12,800 dpi

(50 to 6400 dpi in 1 dpi increments,
12,800 dpi performed with zoom function)

Speed (2400 dpi, Color: 11.0 msec/line
draft mode) Grayscale: 3.8 msec/line

Command level ESC/I (B8), FS

Zoom 50 to 200% in 1% increments

Pixel depth 16 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 error diffusion modes (A, B, and C) and
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 output
1 type for user-defined

Color correction 1 type for CRT display

3 types for printer output
1 type for user-defined (only user-defined
color correction is available in EPSON
TWAIN)

Scanner Specifications

Basic Specifications

Scanner type Flatbed, color

Photoelectric Color CCD line sensor
device

Effective pixels 20,400 × 28,080 pixels at 2400 dpi,

100% scaling

Interface

USB (Type B receptacle connector)
IEEE 1394 (FireWire



)

Light source White cold cathode fluorescent lamp

Reliability 30,000 cycles of carriage movements
(MCBF)

Dimensions Width: 12.0 inches (30.4 cm)

Depth: 18.7 inches (47.6 cm)
Height: 4.8 inches (12.2 cm)

Weight Approx. 12.8 lb (5.8 kg)

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EPSON Perfection 2450 PHOTO

Electrical

Input voltage 100-120 VAC
range

Rated input 0.45 A
current

Power Approx. 23 W operating
consumption approx. 7 W in power saving mode

Note: Scanners sold outside the US market may operate at a different

voltage. Check the label on the back of the scanner for voltage
information.

Environmental

Temperature Operation: 41 to 95 °F (5 to 35 °C)

Storage: –13 to 140 °F (–25 to 60 °C)

Humidity Operation: 10% to 80%
(without Storage: 10% to 85%
condensation)

Operating Ordinary office or home conditions; avoid
conditions extreme dust, direct sunlight, and strong

light sources.

Safety Approvals

Safety UL 1950

CSA C22.2 No. 950

EMC FCC part 15 subpart B class B

CSA C108.8 class B

USB Interface

Interface type Universal Serial Bus Specification

Revision 2.0

Connector type One receptacle (Type B)

Configuration

Element Description

Characteristics Self-powered

Remote wake up feature: Not supported

Maximum power consumption from VBUS: 2mA (5V)

Interface No alternate setting

Class: Vendor specific

Endpoint 1 Bulk IN transfer

Maximum data transfer size: 64 bytes (Full Speed)

Endpoint 2 Bulk OUT transfer

Maximum data transfer size: 64 bytes (Full Speed)

String
Descriptor

Language ID: US English

1: Manufacturer: “EPSON”

2: Product: “EPSON Scanner”

512 bytes (High Speed)

512 bytes (High Speed)

Electrical Full Speed mode (12 Mbit/s) and High
standard Speed mode (480 Mbit/s), Universal

Serial Bus Specification Revision 2.0

Connector pin arrangement

Pin number Signal Connector

1VCC

2 –DATA

3+DATA

4GND

FireWire Interface

Interface type IEEE 1394a-2000 compatible

Data transfer Half-duplex data / strobe differential

serial

Synchronization Clock synchronization with DS-Link

Encoding/ DS-Link
Decoding

Logic level: 3.3. V

Power class Power class code 100

No power supply from external sources
Fitted with a repeat function with bus
power

Connector pin arrangement

Pin number Signal Connector

1VCC

2GND

3TPB–

4 TPB+

5TPA–

6 TPA+

2

1

64

3

5

Transparency Unit

The transparency unit is built into the scanner lid.

Electrical Supply voltage: DC 24 V ±10% V

Rated current: 0.5 A

Document Positive or negative film in the following
specifications sizes:

35 mm strips
35 mm slides
120/220 (6 × 9-cm) film
4 × 5-inch film

Readable area 4 × 9 inches (102 × 230 mm)

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