Epson Perfection 1240U

Epson Perfection 1240U Bedienungsanleitung

  • Scanner Technical Brief—Page 1 6/07
    This technical brief provides detailed information on the Image Quality, Performance, and Flexibility of Epson
    Image Quality—Factors affecting image quality
    When comparing scanners, hardware resolution and color pixel depth are two features often used to gauge
    image quality. These two features are important, but there are a number of factors that determine image
    quality in a scanner, such as the following: (Many of these elements will be discussed in detail in upcoming
    sections of this document.)
    The Epson Expression
    and GT series scanners are Epsons professional series scanners designed for excel-
    lence with respect to image quality, speed, usability, versatility, and durability. These scanners include the
    highest quality components.
    Precision stepper motor
    for high quality sub-scan
    Dynamic range control
    Type of lamp system used
    Optic system
    Optical resolution and
    color bit depth
    Quality of the Analog to Digital con
    verter (ADC); Epson scanners have
    optimum performance for minimal
    noise and tight color registration.
    Type of focus method
    Color vs. monochrome CCD
    The Epson Perfection
    series scanners are designed for home and entry-level corporate and graphics arts
    users, and are designed with the highest quality components in their price class.
    Image Quality—Resolution
    A scanner’s resolution determines the amount of data that is read by the scanner. As resolution increases, so
    does the file size. Resolution is measured in a variety of ways.
    1. Optical resolution: This is the actual number of pixels read by the CCD (Charge Coupled Device), which
    measures the intensity of the light that is reflected from the image to be scanned, and converts it to an
    analog voltage. If a scanner has a resolution of 600 x 2400 dpi, its optical resolution is 600 dpi, which
    means that it can resolve 600 bits of data per inch.
    2. Hardware resolution: Using a precision stepper motor to double-step or
    quadruple-step the carriage, the scanner’s sub-scanner resolution can be
    increased. For example, a scanner can have an optical resolution of 1200
    dpi, but a hardware resolution of 1200 x 2400 dpi (because it double-steps
    the carriage to increase the vertical resolution).
    2400 dpi
    1200 dpi

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Marke Epson
Model Perfection 1240U
Produkte Scanner
EAN 8715946051086, 8715946058504
Sprache Englisch
Dateityp PDF
Maximale Scan-Abmessung 216 x 297
Optische Dichte 3
Scanner-Typ Flachbettscanner
Sensor-Typ CCD
ISO-A-Formate (A0...A9) A4
Maximale Papiergröße der ISO A-Serie A4
Mitgelieferte Software EPSON TWAIN
Adobe PhotoDeluxe
ScanSoft TextBridge Pro
NewSoft Presto
Sonstige Funktionen
Abmessungen (BxTxH) 269 x 171.4 x 93
Energiebedarf 100 - 120V, 49.5 - 60.5Hz
Gewicht und Abmessungen
Gewicht 2800
Mindestsystemvoraussetzungen USB
Kompatible Betriebssysteme Windows 98/2000/Me
Mac 8.5 +
Min. benötigter RAM 32MB
Minimum Prozessor Pentium
Stromversorgung 25
Luftfeuchtigkeit in Betrieb 10 - 80
Temperaturbereich in Betrieb 5 - 35
Luftfeuchtigkeit bei Lagerung 10 - 85

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