ijpds formats.book - Kodak

Glossary
IJPDS Formats
character offset The distance a bounding box is offset from the
current cursor position. The offset can be in both the X and Y dimensions
in positive or negative directions. Character offset values are specified
when defining the font.
character spacing X and Y character spacing values that are
contained in an SFS spacing record. These values are added to the
character escapement values defined in the font.
cue A signal that represents the start of a document. A cue signal
occurs each time the cue sensor detects the leading edge of a piece of
substrate or a preprinted cue mark on a web.
cue mark A preprinted mark on a web that is the reference point for the
start of a new document.
current fixed file The last fixed file to be identified by an SFF, RFF,
SOD, or SDC record. See also fixed files.
current font The font currently in effect. The font specified by the last
IJPDS record executed that contained a font identification field.
cursor A pointer in the page buffer. Cursor position is defined using X
and Y coordinates. See also cursor position, absolute cursor position and
relative cursor position.
cursor position The current position of the cursor in the page buffer.
The cursor is set to the starting position in IJPDS position records, but is
moved by various records such as SFI, IML, SIL, UIL, SPC, BOX, and
IBM according to the rules for the record. For example, when printing a
line of text, the starting position for the line remains the same, but the
cursor moves as each character is placed in the buffer. See also starting
position.
data station The component of the printing system that receives
character-coded input data and produces image data in bitmapped format
that is sent to the printheads at the print stations.
document A unit of input data that is printed in one area of the
substrate. A document may include more than one page. Most common
data preparation establishes one document for each cue mark on a web
or one document for each piece in cut-sheet printing. See also page.
dot 1. The smallest mark that can be printed by the printing system. 2.
The distance between pixels (dots) in the printed image. With a 240-dpi
resolution, a distance of 1 dot equals 1/240 in.
downstream The direction that is the same as substrate movement.
See also upstream.
dpi Dots per inch. A measure of print resolution.
EBCDIC Extended Binary-Coded Decimal Interchange Code. A
standard 8-bit code used to represent a set of characters numbered 0 -
255. EBCDIC is usually used on IBM mainframe and midrange systems.
EOT marker A reflective strip on a magnetic tape that indicates the
end of the physical medium (end of tape).
escapement The distance the cursor is moved for character spacing or
for line spacing. See also character escapement and font escapement.