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Product: fi-4640S
Type: Desktop
Image sensor: Reduced optical system
Operating method: Document fixed Flat bed, Automatic Document
Feed(ADF)
Long page scanning (297mm x 1387mm)
Light source: Xe discharge tube(Green)
Basic resolution: Horizontal scanning: 400 dpi
Vertical scanning: 800,700,600,500, 400, 300, 240, 200, 150,
100 dpi
Output resolution: Standard: 50 dpi to 800 dpi (at steps of 1dpi)
Grayscale levels (internal): 10 bit 1024 levels
Grayscale output: Enabled (8 bits)
Halftone Patterns: Dither matrix (can be downloaded), Error diffusion
Scanning speed: 0.9 sec or less
ADF scanning speed
1
: Single sided: 45 pages per minute (200 dpi, A4, 55 kg)
ADF chuter capacity: Maximum 100 sheets, ream weight: 55 kg, A4 [High quality
paper, normal temperature and humidity])
Document size: Maximum 297 mm × 432 mm
or Maximum 297mm × 1387 mm with Long Page Scanning Mode
Supported regular paper
2
: A3, A4/A4 Landscape, A5/A5 Landscape, A6/A6 Landscape, B4,
B5/B5 Landscape, B6/B6 Landscape, Letter/Letter Landscape,
Double Letter, Legal, US Executive/US Executive Landscape
Isolation specification: Specified (one location)
Background compensation: Enabled
Contrast setting: 256 steps
Gamma pattern: 3 internal types (can be downloaded)
Image processing function: Simplified Dynamic Threshold (SDTC), Edge emphasis, Edge
extraction, SEE(Selectable Edge Enhancement), Reverse image
With image processing option
Dynamic Threshold (DTC), Smoothing, Filtering, Noise removal,
Automatic Separation
1
This speed is only specified for the scanner itself. The actual reading speed may vary depending on the
system configuration.
2
Not all paper sizes can be used in all devices. For details, refer to the users' manual for the device.
For other paper sizes, the customer settings can be used.