Epson 1640XL User Manual - Page 80

Gamma correction, Rated frequency

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Reading sequence Monochrome: One-pass scanning 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 Command level ESC/I-B8 Pixel depth 14 bits per pixel (12 bits per pixel input, 1 to 14 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) 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 1 type user-defined Color correction 1 type for CRT display 3 types for printer (available in color byte sequence mode and color line sequence mode) 1 type user-defined Interfaces SCSI 2 (micro DB 50-pin connectors) USB (Type B receptacle connector) Optional IEEE 1394 (FireWire) Light source Xenon gas cold cathode fluorescent lamp Reliability 100,000 cycles of carriage movement (main unit MCBF) Dimensions Width: Depth: Height: 25.8 inches (656 mm) 18 inches (458 mm) 6.9 inches (176 mm) Weight Approximately 46.2 lb (21 kg) Electrical Input voltage range 100 to 120 VAC: 220 to 240 VAC: 90 to 132 VAC 198 to 264 VAC Rated frequency 50 to 60 Hz 74 Scanner

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74
Scanner
Reading sequence
Monochrome: One-pass scanning
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
Command level
ESC/I-B8
Pixel depth
14 bits per pixel (12 bits per pixel
input, 1 to 14 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)
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
1 type user-defined
Color correction
1 type for CRT display
3 types for printer (available in color
byte sequence mode and color line
sequence mode)
1 type user-defined
Interfaces
SCSI 2 (micro DB 50-pin
connectors)
USB (Type B receptacle connector)
Optional IEEE 1394 (FireWire)
Light source
Xenon gas cold cathode fluorescent
lamp
Reliability
100,000 cycles of carriage movement
(main unit MCBF)
Dimensions
Width:
25.8 inches (656 mm)
Depth:
18 inches (458 mm)
Height:
6.9 inches (176 mm)
Weight
Approximately 46.2 lb (21 kg)
Electrical
Input voltage range
100 to 120 VAC:
90 to 132 VAC
220 to 240 VAC:
198 to
264 VAC
Rated frequency
50 to 60 Hz