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Item
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Specification/function
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Original exposure
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Indirect exposure by LED (LED & photoconductive body)
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Original scan
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In book mode
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Scan by movement of CCD
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In ADF mode
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Stream reading with CCD fixed
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Read resolution
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600 dpi (main scanning) x 600 dpi (sub scanning)
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Gradation
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256 gradation
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Carriage position detection
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CCD HP sensor (S11)
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Magnification
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25% to 400%
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Main scanning
direction
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Image is processed on main controller PCB 2
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Sub scanning
direction
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In book mode: speed change by carriage travel, image process on main controller PCB *1
In ADF mode: original feed speed change, image process on main controller PCB *1
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Lens
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ST lens
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CCD
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Number of lines: 4 (R, G, B, B/W)
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Number of pixels: 7500 x 3 color lines, 7500 x 1 B/W line
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Maximum original read width: 317.5mm
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CCD unit drive control
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By scanner motor (M14)
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Original size
detection
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In book mode
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Main scanning direction: by CCD
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Sub scanning direction: by reflection sensor
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In ADF mode
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Main scanning direction: by photo interrupter on DADF
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Sub scanning direction: by photo interrupter on DADF
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