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Product: M4099D (fi-4990)
Type: Desktop
Image sensor: Reduced optical system
Operating method: Automatic Document Feed (ADF),
Simultaneous double-sided scanning,
Long page scanning (297mm
x 878mm, Black&White only)
Light source: Fluorescent tube (White)
Basic resolution: 400 dpi
Output resolution: Standard: 400, 300, 240, 200, dpi
With image processing option: 50 dpi to 400 dpi (at steps of 1 dpi)
Grayscale levels (internal): 10 bit 1024 levels
Gray scale (8 bits) output: Enabled (200 dpi only)
Halftone Patterns: Dither matrix (can be downloaded), Error diffusion
ADF scanning speed
1
: <Asynchronous Scanning>
Single sided: 90 pages per minute (200 dpi, A4, 55 kg)
Double sided: 90 pages per minute (200 dpi, A4, 55 kg)
(= 180 screens per minute)
< Synchronous Scanning >
Single sided: 80 pages per minute (200 dpi, A4, 55 kg)
Double sided: 60 pages per minute (200 dpi, A4, 55 kg)
(= 120 screens per minute)
Hopper capacity: Maximum 1,000 sheets, (ream weight: 55 kg, A4 [High quality
paper, Normal temperature and humidity])
Document size: Maximum 297 mm
x 432 mm
Supported regular paper
2
: A3, A4/A4 Landscape, A5/A5 Landscape, A6/A6 Landscape, B4,
B5/B5 Landscape, B6/B6 Landscape, Double Letter,
Letter/Letter Landscape, Legal, US Executive/US Executive
Landscape
Cutout specification: Specified (one location)
Background compensation: Enabled
Brightness / Threshold / Contrast : 255 steps
Gamma pattern: 3 internal types (can be downloaded)
Image processing function: Simplified Dynamic Threshold (SDTC)
With image processing option
Edge emphasis, Edge extraction, Automatic separation, Reverse
image, Dynamic Threshold (DTC), Smoothing, Filtering, Noise
removal
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.