IBM 60, User Manual

Page: 154 / 166

online. Connected to an installed and enabled
attachment. Contrast with
offline.
OPC. Organic photoconductor. See photoconductor.
operating environment. The physical environment; for
example, temperature, humidity, layout, or power
requirements.
operating requirements. A list of requirements, such
as environmental, electrical, and space, that must be
satisfied before the InfoPrint 60 can be installed.
Optical Character Recognition (OCR). Character
recognition that uses optical means to identify graphic
characters.
orientation. The number of degrees an object is
rotated relative to a reference; for example, the
orientation of an overlay relative to the page point of
origin. See also
text orientation.
overlay. A collection of predefined data, such as lines,
shading, text, boxes, or logos, that can be combined
with variable data on a sheet while printing. See also
electronic overlay and forms overlay.
P
page. A collection of information bound by the
beginning page control and its associated end control.
A page of printing is one side of a sheet of paper or
form. See also
logical page and physical page.
page printer. A device that formats one page at a
time. Contrast with
line printer.
page printer data stream. A data stream that enables
a printer to format a complete page at one time,
including text, images, and page segments. It is
characterized by a composed-page data-stream format.
paper curl. The curve or bend of the paper.
paper path. The entire route that paper travels
through the printer from a tray to a stacker.
parallel channel. A channel having a System/360 and
System/370 channel-to-control-unit 1/0 interface that
uses bus-and-tag cables as a transmission medium.
parameter. A variable that is given a constant value
during printer and attachment configuration.
pattern storage. Pattern storage contains the fonts
and images used for printing the character data,
overlays, and segments contained in the page buffer.
pel (picture element). (1) An element of a raster
pattern; a point where a toned area on the
photoconductor may appear. (2) On an
all-points-addressable output medium, each pel is an
addressable unit. On a row-column addressable output
medium, the only pel addressable is the beginning of a
character cell.
photoconductor (PC or OPC). (1) The material that
is wrapped around the drum. (2) The medium for
transferring images to paper. It accepts an electrical
charge and discharges where exposed to light.
physical page. The form on which the printer is
printing, such as an 8½ x 11 inch sheet of paper. See
also
page. Contrast with logical page.
plant. A manufacturing location.
point. A unit of measurement for describing type sizes.
There are 12 points to a pica, about 72 points to 1.008
inches.
point of origin. The location of the first print position
on a logical page. The point of origin is usually stated
in terms of X and Y coordinates. The point of origin
used by a printer can be affected by factors such as
printable area and forms orientation.
portrait orientation. Pertaining to a display or hard
copy with greater height than width. Contrast with
landscape orientation.
power off. To remove power from the printer.
power on. To provide power to the printer.
PPM. Pages-per-minute. See also
IPM.
preprinted form. A sheet of paper (form) containing a
preprinted design of constant data on which variable
data can be printed. See also
electronic overlay.
printer. A device that writes output data from a system
onto paper or other media.
print position. The physical positions of the
characters constituting a print line relative to the form.
print quality. The quality of printed output relative to
existing standards and in comparison with jobs printed
earlier.
Print Services Facility (PSF). An IBM licensed
program that manages and controls the input data
stream and output data stream required by supported
IBM page printers. PSF combines print data (from the
system spool) with other resources and printing controls
to produce the printer data stream (including printer
commands) for AFP printers.
print surface. The side of a form that receives the
printed image.
G-6
InfoPrint 60 User's Guide