Service manual

EPSON Perfection 1250/1250 PHOTO Appendix
45
6.1 Specifications
This chapter provides additional information that may be useful when servicing
the scanner.
6.1.1 Basic specifications
Type Desktop color image scanner
Scanning method Fixed bed document scanning with movable
scanning head
Image scanning device Color CCD line sensors (3-line type)
Scanning area A4 (US Letter)
Max. effective area 8.5" x 11.7" (216 mm x 297 mm)
Max. effective resolution 10,200 x 14,040 dots (1200 dpi)
Resolution Main: 1200 dpi
Sub: 2400 dpi
Output resolution
50 – 4800 dpi
(setting in units of 1 dpi possible)
7200 dpi, 9600 dpi
Gradations All pixels/all colors: 16-bit (input)
1-bit or 8-bit (output)
Color separation method Color CCD
Scanning speed Black & White: Approx. 12 msec./line
256 grayscale: Approx. 36 msec./line
Full color: Approx. 36 msec./line
(A4, 1200 dpi, high-speed scanning, not
including data transmission time)
Command level ESC/I-D2
Size 10.9” (W) x 17.2” (D) x 2.6” (H)
278 (W) x 438 (D) x 67 (H) mm
Weight Approx. 5.5 pounds (2.5 kg)
Image processing functions
"
Gamma correction User-defined correction table setting
"
Image output data 8-bit or 1-bit
Interface USB (B connector - 1 receptacle)
Light source White cold-cathode fluorescent lamp
Power switch None
Indicator LEDs Two-color LEDs
Option TPU
Scanning time PC (A4 size using a Pentium-3, 550 MHz,
256 MB or more PC)
600 dpi: 175 seconds or less
1200 dpi: 800 seconds or less
Operating Systems • Windows 98
• Windows 2000 Pro
• Windows ME
• Macintosh System 8.5 or higher (with standard USB
port)
• Post-release support is planned for MAC OS X and
Windows XP
Hub The device must be connected to a tier 1 hub.