Epson Expression 1600 User's Guide download pdf (Page 89)

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Glossary

R4C0910

long.bk Rev. C

A5 size GLOSS.FM

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M.Fujimori _______

J.Hoadley _______

dithering

A process in which software or an output device simulates continuous tones with

groups of dots.

document

The item, such as a sheet of paper or a book, that is placed on the document table

for the scanner to read.

dpi

Short for dots per inch. A unit of measurement for resolution. The higher the

value, the higher the resolution.

dropout color

A color the scanner does not recognize and ignores. You can select and deselect

dropout colors in the scanner software.

ESC/I

Abbreviation for EPSON Standard Code for Image scanners. A system of

commands that allows you to control image scanners from your software.

ESC/P

Abbreviation for EPSON Standard Code for Printers. A system of commands that

allows you to control printers from your software.

gamma

Gamma is a value that expresses the relationship between the input and output

of a device. By adjusting the gamma, the brightness of the mid-tones of an image

can be changed without affecting the shadows and highlights.

grayscale

Images represented with various shades of gray in addition to black and white.

halftoning

A method of reproducing images with patterns of dots to improve the quality of

the output.

home position

The position at the rear (nearest the cover hinge position) of the scanner where

the carriage rests before a scanning operation.

imagesetter

A device that uses computer files to produce high-resolution text and graphics

output on film or paper. These are usually found in service bureaus and printing

companies.

impact dot printer

A printer that transfers ink onto the paper by striking an ink ribbon with a number

of small pins.

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Epson Expression 1600 User's Guide Page 89

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