Epson Perfection 1240U инструкция обслуживания

Scanner T echnical Brief—P age 1 6/07 This technical brief pro vides detailed information on the Image Quality , P erformance , and Flexibility of E pson Scanners. Image Quality—F actors affecting image quality When comparing scanners, hardwar e r esolution and color pixel depth are two featur es often used to gauge image quality . These two fe[...]

Scanner T echnical Brief—P age 2 6/07 Image Quality—Resolution (cont.) 3. I nterpolated resolution: I nterpolation is a method to increase the r esolution of an image . I t uses a complex algorithm to “ add” pixels to an image based on the mathematical probability of surr ounding pixels. F or example , if a scanner has a hardwar e r esoluti[...]

Scanner T echnical Brief—P age 3 6/07 Image Quality—Pixel depth (c ont.) Key Differences 42-bit, or 48-bit Internal/ 24-bit External Color Depth 36-bit, 42-bit, or 48-bit Internal and External Color Depth How it works The scanner captures 42-, or 48-bit image data, but “ downsamples ” an image to 24-bits, keeping the most signifi cant colo[...]

Scanner T echnical Brief—P age 4 6/07 Image Quality—Epson ColorT rue® Imaging S ystem (c ont.) 1. H ar dware components: E pson scanners use a pr ecise scan carriage with better motors to achieve subscan resolutions that ar e double or quadruple the scanner’ s optical r esolution. A dditionally , Epson scanners capture R ed, Gr een, and Blue[...]

Scanner T echnical Brief—P age 5 6/07 3. Pr ocessing: Many E pson scanners use a custom ASIC (Application S pecifi c I ntegrated Cir cuit) for fast scanning. Key featur es include:  Line correction captur es and processes full R GB color for every pixel and minimizes color fringing in subscan direction.  Zoom capability enables smoothest e[...]

Scanner T echnical Brief—P age 6 6/07 Image Quality—D ynamic Range Dynamic range measures the differ ence between the lightest highlights and dar kest shado ws that a scanner can perceive (on a scale of 3.0 to 4.0). The maximum density rating is referr ed to as Dmax. A dynamic range measur ement is important for designers who scan transpar ent [...]

Scanner T echnical Brief—P age 7 6/07 Image Quality—Dual Lens Sy stem A unique Dual Lens S ystem, available on some E pson scanners, automatically selects from two lenses for the desired scan r esolution. Some E pson P erfection scanners offers 4800 dpi optical resolution with the High R esolution lens . F or a higher resolution of 6400 dpi, th[...]

Scanner T echnical Brief—P age 8 6/07 P er formance—Ba tch Scanning Epson scanning softwar e supports batch scanning:  Without batch scanning, you must scan each image separately .  With batch scanning you can defi ne customized settings for each framed original, then capture each one as a separate fi le—all with one scan. Place origi[...]

Scanner T echnical Brief—P age 9 6/07 Fle xibilit y—Network Scanning N ewer networkable Epson scanners offer the ability to connect to the network as a device (through a network car d) and don ’ t have to connect through a specifi c scan server . Some other E pson scanners can be shared o ver a network, using the follo wing procedure:  At[...]

Scanner T echnical Brief—P age 10 6/07 DIGIT AL ICE technology from Applied Science Fiction(ASF™) is a scanner feature that combines hardwar e and software to remo ve dust and scratches on film and remo ve tears, folds, cr eases, and deep scratches on photos . This feature is not av ailable on all Epson scanners . Color photo befor e DIGIT AL [...]

Scanner T echnical Brief—P age 11 6/07 Fle xibilit y—Epson Smart Panel™ software Epson S mart Panel allo ws you to scan and send data directly to an assigned application or to the E pson photo-sharing site. Y ou can also obtain photos and documents in digital form quickly and easily . This version of the Epson S mart Panel includes the follo [...]