Specifications

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EPSON Expression 800

1/99 EPSON Expression 800

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Scanner Parts

Scanner Specifications

The EPSON Expression 800 is a 36-bit professional graphics

scanner designed to deliver superior results for artists, graphics

professionals, and business graphics users.

Basic Specifications

Scanner type Flatbed, color

Photoelectric

device Color CCD line sensor

Effective pixels 6800 × 9360 pixels at 800 dpi, 100%

Maximum

document size US letter size or A4

(8.5 × 11.7 inches

[216 × 297 mm])

(The reading area can be specified from

software.)

Optical resolution 800 dpi

Maximum

hardware

resolution* 800 dpi (main scan) × 3200 dpi (sub scan)

* The maximum hardware resolution of 800 × 3200 dpi is achieved

using EPSON’s Micro Step

™

Drive technology.

Maximum

software

resolution 12800

12800 dpi with interpolation

Speed (800 dpi,

draft mode) Color: 7.5 ms/line

Monochrome (bi-level): 7.5 ms/line

Color separation RGB color filters on CCD

Command level ESC/I-B8

Reading sequence Monochrome: One-pass scanning

Color page sequence: One-pass scanning

(R, G, B)

Color byte sequence: One-pass scanning

(R, G, B)

Color line sequence: One-pass scanning

(R, G, B)

Zoom 50% to 200% in 1% increments

Pixel depth Color: 12 bits per pixel input, 1 to 12 bits

per pixel output

Grayscale: 10 bits per pixel input, 8 bits

per pixel output

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) and

4 dither patterns (A, B, C, and D) for

bi-level and quad-level data

Gamma correction 2 types for CRT display

3 types for printer

1 type for user-defined

SCSI terminator

switch

SCSI ID rotary switch

AC inlet

SCSI interface connectors

option connector

document cover

carriage (in the home

position)

OPERATE button

ERROR light

READY light

OPERATE light

transportation

lock

Summary of content (7 pages)

PAGE 1
EPSON Expression 800 Maximum document size Scanner Parts document cover carriage (in the home position) Optical resolution 800 dpi Maximum hardware resolution* * Speed (800 dpi, draft mode) ERROR light READY light OPERATE light OPERATE button AC inlet transportation lock option connector SCSI interface connectors Scanner Specifications Color CCD line sensor Effective pixels 6800 × 9360 pixels at 800 dpi, 100% Color separation RGB color filters on CCD Command level ESC/I-B8 Zoom 50% to 200
PAGE 2
EPSON Expression 800 Color correction Safety Approvals 1 type for CRT display 3 types for printer output (available in color byte sequence mode and color line sequence mode) 1 type user-defined 120 V Safety standards Interface Two SCSI 2 (50-pin half-pitch connectors) Light source White cold cathode fluorescent lamp (Xenon) Reliability MCBF 100,000 cycles of carriage movements (main unit) Safety standards Dimensions Width: 13.0 inches (332 mm) Depth: 22.1 inches (562 mm) Height: 5.
PAGE 3
EPSON Expression 800 ID Setting Selectable from 0 to 7 (factory setting: 2); asterisk (*) setting is only used when transporting scanner Terminator Internal terminator selectable (enable/ disable) Connector type Two 50-pin half-pitch connectors Electrical Resistance to electrical noise (static electricity) Connector pin arrangement 25 1 50 Initialization methods MCBF 100,000 cycles Temperatures Operation 41 to 95 °F (5 to 35 °C) Storage −4 to 140 °F (-20 to 60 °C) Humidity (without condensati
PAGE 4
EPSON Expression 800 Optional Auto Document Feeder Specifications Electrical Power supply (supplied by the scanner): 24 VDC ± 10% 5 VDC ± 10% Power consumption: approximately 22 W Insulation resistance: 10 mΩ or more at 500 VDC (between AC line and chassis) Dielectric strength: 1000 VAC per minute (between AC line and chassis) Resistance to static electric noise: Casing: 10 kV Metal: 7 kV Safety approvals UL 1950 CSA C22.2 No.
PAGE 5
EPSON Expression 800 Scanner buttons Lights and Buttons The scanner has three indicator lights and two buttons. Light status and button functions are described in the tables below. Button Function P OPERATE Turns the scanner on and off. RESET Resets the scanner after an error. (Pressing this button while scanning is in progress stops the scanner and may cause an error.
PAGE 6
EPSON Expression 800 Selecting a Driver and Settings Here is a brief overview of the scanning steps using LaserSoft® SilverFast™ Lite and EPSON TWAIN Pro. In both of the following illustrations, the Macintosh interface is shown; the Windows steps are the same.
PAGE 7
EPSON Expression 800 Here are some recommended settings for different types of scans. Photoshop 5.0 LE Macintosh Configuration Tips Scanning resolution for printing* To avoid memory problems on the Macintosh when using the scanner with Photoshop 5.0 LE, follow these recommendations: Image type Recommended driver Recommended driver options Photograph SilverFast Lite Filter: None or Sharpen 300 dpi Polaroid ® photograph SilverFast Lite Original: Spectra® Polaroid or 600 Polaroid 300 dpi 1.