Printronix T5204R Administrator's Manual page 376

Appendix I
PGL
Pitch (RFID)
Port
Protocol
RAM
Reflective Sensing
Resolution
RFID Encoder
Roll Media
Sensed Distance
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Intelligent Graphics Printing software for the
Printronix Graphics Language, designated for
Printronix printers. PGL provides online forms,
barcodes, and many alphanumeric text-generation
capabilities and is compatible with earlier versions of
Printronix PGL protocol and programming.
In the RFID industry, pitch is defined as the distance
from one point on an inlay to the same point on the
next inlay.
A data channel used for receiving data from or
transmitting data to one or more external devices.
The rules and conventions that govern
communication between a printer and a host
computer. A protocol includes codes for printing text
and graphics and codes instructing the printer to
perform special operations.
Random-Access Memory. Also called "main
memory" or "working memory." It is the active
memory of the printer into which programs are
loaded. RAM is saved to volatile memory because
data in RAM is lost when power is turned off or
interrupted.
Use of the lower media sensor only to transmit and
receive infrared light off the underside of media to
detect gaps, notches, holes, or horizontal black
marks used for determining the Top-of-Form position
on labels or for indicating a Paper Out condition.
A measure expressing the number of component
units in a given range used to create an image; in
printing, expressed as the number of dots per inch
(dpi) horizontally and vertically.
The RFID (Radio Frequency Identification) encoder
programs smart labels (tags with embedded inlays).
Media supplied in a roll format, usually wound on a
1-inch or 3-inch cardboard core. The T5000 media
hanger assembly accepts both core sizes.
Gap/Mark Sensor = Gap, Advanced Gap, or
Advanced Notch: The Sensed Distance value is the
physical length of one label plus the length of one
gap.
Gap/Mark Sensor = Mark: The Sensed Distance
value is the physical distance from the leading edge
of one black mark to the leading edge of the next.