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pixel
Short for picture element. Each pixel is comprised of units of dots,
and an image is composed of a number of pixels.
plain bi-level
The bi-level image data without the halftoning process.
port
A channel or interface through which data is transmitted between
devices.
quad-level data
Data that consists of two bits per pixel and can express four light to
dark levels: 00 (light), 01, 10, and 11 (dark).
resolution
Indication of how finely an image is resolved into pixels. Measured
in dpi.
scan
An operation performed by
the
sensor (horizontal
scan)
and the
carriage (vertical scan). The image is divided into pixels by
scanning.
scanning area
The physical size of the image that can be scanned by
the
scanner.
Measured or determined by the number of dots for the horizontal
scan and vertical
scan.
self test
A built-in function to check the operation of the scanner.
thermal transfer printer
A printer type that transfers ink onto the paper with
heat
generated
by
a
number of small heating elements.
zoom
A
scanner function to enlarge or reduce the size of the image.
4
Glossary