Service manual

EPSON Perfection 1240U Revision A
Product Description Product Description 9
1.2 Product Description
GENERAL SPECIFICATION
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Product Type: Flatbed color image scanner
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Sub-scanning method: Movement of the Scanner-Head
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Photoelectric device: 6 line alternate color CCD
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Maximum Read Area: 8.5 x 11.7 (216 x 297mm)
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Maximum effective picture element:
10200 x 14040 pixels (1200 dpi)
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Scanning Resolution:

Main 1200 dpi (Optical resolutionby 6 line CCD with 30600 pixels)
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Sub 2400 dpi with Micro Step
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Output resolution: 50
∼
4800 dpi (1 dpi step)
(9600dpi scanning is achieved by 4800dpi x200%)
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Gray scale levels: 14 bits/pixel (Input 14 bits/pixel, Output 1-14/bits/
pixel)
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Color Separation: By the color filter of CCD
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Zoom: 50
∼
200% (1% step)
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Scanning Speed:
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Color: 7.0 msec/line
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Monochrome (bi-level): 6.5 msec/line
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Command level: ESC/I (B8), FS
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Gamma Correction: CRT 2 level (A, B)
PRINTER 3 level (A, B, C)
User defined 1 level
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Color Correction: Impact-Dot Printer
Thermal Printer
Ink-Jet Printer
CRT Display
User defined 1 level
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Brightness: 7 levels
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Line Art: Fixed threshold
TET (Text Enhancement Technology)
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Digital halftoning: AAS
Error Diffusion 3 modes (A, B, C)
(Bi-level, Quad-level)Dither (Resident) 4 modes (A, B, C)
Dither (User defined) 2 modes (A, B)
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Interface (Resident):USB (Type-B Receptacle Connector) x 1pc
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USB Hosts: All of USB ports work correctly. (The functionality of
the USB port (s) must be ensured by the vendor of the
Host)

Hub: This device must be in the Tier 1 or 2 with
recommended USB cable. (Tier1:Host-this device
Tier2: Host-Hub-this device)
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Light Source: White Cold cathode Fluorescent Lamp
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Option : Film Adapter
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Power Switch: None
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Operating System: Microsoft Windows 98 (pre-install model)
Windows2000
(pre-install model, or up grade of pre-install model of
Win 98)
Millennium
(pre-install model, or up grade of pre-install model of
Win 98)
Macintosh System 8.1 or later
(Macintosh with standard connection with USB)