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Print Quality Enhancement (PQE). A printer facility
that provides edge smoothing along diagonal lines, fine
fidelity protection, and independent boldness control.
Print Services Access Facility (PSAF). A menu-driven,
print-parameter selection program for page printers
controlled by PSF.
print surface. The side of a form that receives the
printed image.
printer utility module (PUM). A section of Printer 1
in a duplex configuration. It includes:
v Operator alert assembly
v Power control panel
v System interconnection electronics
v Preprocessing/postprocessing device interfaces
PSF. Print Services Facility.
R
RAM. Random access memory.
raster. (1) In computer graphics, a predetermined
pattern of lines that provides uniform coverage of a
display space. (2) The coordinate grid that divides the
display area of a display device. (3) In the InfoPrint
3000 Printer Subsystem, an on/off pattern of
electrostatic images produced by the laser print head
under control of the character generator.
raster pattern. A series of picture elements (pels)
arranged in scan lines to form an image.
registration. In printing, refers to the relative print
positions of images that are printed at different times.
For example, when you process preprinted forms, the
registration is good if the new image printed by the
InfoPrint 3000 aligns correctly with the preprinted
image. Print that extends beyond box edges and text
that overlaps other text are examples of poor
registration.
resource. (1) People, equipment, or material used to
perform a task or a project. (2) Any facility of a
computing system or operating system required by a
job or task, including main storage, input/output (I/O)
devices, processing units, data sets, and controller
processing programs; for example, page printers use
resources such as form definitions, page definitions,
and fonts.
reverse heading. A heading where each character is
highlighted by reversing the color of the character with
its background; for example, changing a black character
on a white background to a white character on a black
background.
RPQ. Request for price quotation.
S
SBCS. Single-byte character set.
scanner. A device that examines OCR, graphics,
MICR, or bar-code patterns and generates electrical
signals corresponding to the pattern. It sends the
signals to a computing device for processing.
screen or screening. In document printing, a sheet of
material, usually film, carrying a regular pattern of
small dots. When printing, ink adheres only to the dots,
and many dots close together appear solid. This
method prints large areas of ink on paper but uses
much less ink than printing the same area with solid
ink.
SCSW. Subchannel status word.
SDLC. Synchronous Data Link Control.
security paper. Specially formulated paper used for
negotiable documents, such as checks, which improves
the anti-fraud characteristics of the document.
shift. A scheduled work period. For example, a
24-hour day is often divided into three 8-hour shifts.
simplex printing. Pertaining to printing on only one
side of a form. Contrast with duplex printing.
single-byte character set (SBCS). A character set in
which each character is represented by a 1-byte code.
sizing. A process where paper is treated to give it
resistance against penetration of liquids.
SMM. Select Medium Modification.
SNA. System Network Architecture.
special-purpose materials. Printable items other than
blank forms; for example, adhesive labels and
preprinted forms.
stack lean. A measurable slope from the vertical of a
stack of forms. Excessive stack lean can cause failures
when feeding and refolding forms.
Synchronous Data Link Control (SDLC). For
managing synchronous, code-transparent, serial-by-bit,
information transfer over a link connection.
system reference code (SRC). A code that contains
information, such as a failing field-replaceable unit, for
a customer engineer.
system programmer. A programmer who plans,
generates, maintains, extends, and controls the use of
an operating system, with the aim of improving overall
productivity of an installation. Contrast with application
programmer.
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Glossary
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