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Driver Name	Epson Perfection 4490 Photo
Driver Info	Flatbed color image scanner Optical resolution 4800 dpi ( main scan ) x 9600 dpi ( sub-scanning ) Presentation format 216 × 297mm (A4 + Letter) 68 x 236mm (35mm film strip 12 , 35mm slide 4 , medium size (6 x 12cm) 1张filmstrip ) Interface type USB2.0 (Type B standard interface x 1) Output Resolution 50 - 6400 (1 dpi step ), 9600, 12800 dpi Color inputs 48 bit (281.5 trillion colors ) Output 48 bit (281.5 trillion colors )       24 bit (16.7 millions of colors )       16 bit (65,536 greyscale )       8 bit (256 grayscale )       1 bit monochrome Scan speed Reflective scanning speed Monochrome * 1 A4 600dpi 3.84 msec / line 24bit color * 2 A4 600dpi 3.84 msec / line Film scanning speed 35mm positive 4800dpi 104 seconds ( best mode ) ; 87 seconds (draft mode ) 35mm negatives 4800dpi 116 seconds ( best mode ); 94 sec ( draft mode )
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