EPSON Perfection 640U
Scanner Parts
| Start button | document |
indicator | cover | |
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light | Copy button | |
Scan button
carriage (in the home position)
document table
USB interface | DC inlet | transportation lock |
connector |
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Scanner Specifications
Basic Specifications
| Scanner type | Flatbed, color |
| Photoelectric | Color CCD line sensor |
| device |
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| Effective pixels | 5100 × 7020 pixels at 600 dpi, |
| 100% scaling |
| Maximum | US letter or A4 size |
| document size | (8.5 × 11.7 inches [216 × 297 mm]) |
| Optical resolution | 600 dpi |
Maximum | 600 dpi (main scan) × 2400 dpi |
| hardware | (sub scan) |
| resolution* |
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*The maximum hardware resolution of 600 × 2400 dpi is achieved using EPSON’s Micro Step Drive™ technology.
Maximum | 9600 × 9600 dpi |
| interpolated |
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| resolution |
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| Speed (600 dpi, | Color: 16 msec/line |
| draft mode) | Greyscale: 5.3 msec/line |
| Output resolution | 72 to 9600 dpi |
| Command level | |
| Zoom | 50 to 200% in 1% increments |
| Pixel depth | Color: 12 bits/pixel (input) |
| 8 bits/pixel (output) |
| Brightness | 7 levels |
| Line art settings | 1 bit/pixel |
| Digital halftoning | Error diffusion: 3 modes (A, B, C) |
| Dither (resident): 4 modes (A, B, C, D) |
| Dither |
| Color correction | 1 type for |
| Interface | USB (Type B receptacle connector) |
| Light source | White cold cathode fluorescent lamp |
| Reliability | 30,000 cycles of carriage movements |
| (main unit MCBF) |
| Dimensions | Width: 10.6 inches (26.9 cm) |
| Depth: 17.1 inches (43.5 cm) |
| Height: 3.7 inches (9.3 cm) |
| Weight | Approx. 6.2 lb (2.8 kg) |
| Electrical |
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Specification |
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Input voltage range | DC 24 V |
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Rated current | 0.8 A |
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Power | Approx. 17 W |
consumption |
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Note: Check the label on the back of the scanner for voltage information.
| 10/00 | EPSON Perfection 640U - 1 |