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Glossary
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PapU-U
Rev. C
A5 size GLOSSARY.FM
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line sequence
A type of color scanning that separates primary colors line by line. The carriage
makes only one pass.
monochrome
Black and white images, or images represented only by the intensity of
luminosity.
OCR
Optical Character Recognition. The technology that allows computers to "read"
text from physical objects. OCR requires a graphical representation of text to
interpret, which usually comes from a scanned image.
page sequence
The type of color scanning in which the entire image is scanned once for each
separate color.
pixel
Short for picture element. Each image is composed of a number of pixels. Pixels
are also counted in units of dots.
plain bi-level
Bi-level image data without the halftoning process.
port
An interface channel through which data is transmitted between devices.
primary colors
Basic colors. See
additive primary colors
and
subtractive primary colors.
resolution
Indication of how finely an image is resolved into pixels. Measured in dots per
inch (dpi), pixels per inch (ppi), or samples per inch (spi).
scan
An operation performed by the sensor and the carriage. The image is divided
into pixels by scanning.
scanning area
The physical size of the image that can be scanned by the scanner.
SCSI
Small Computer System Interface. This is one method used to connect your
computer to peripherals such as scanners, hard disk drives, CD-ROM drives, and
so on.
SCSI ID
The numbers that all devices in a SCSI connection (see
daisy chain
) use to identify
each other. If the same ID number is used by two devices in the same daisy chain,
the devices cannot operate properly.