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Glossary
G-7
G
point size
A unit of measure for font height; 72 points equals 1 inch as measured from slightly
above the top of the uppercase letters to slightly below the bottom of the lowercase
descenders.
Polling Mode D protocol
Polling Mode D is a protocol that allows devices and controllers to exchange data in an
“ask and receive” format. Use Polling Mode D to connect multiple devices to a single
multiport controller.
print speed
Measured in inches per second (ips), the rate at which media travels past the printhead.
printhead
The mechanism inside the printer that prints. For example, the printhead for the 3440
printer consists of 1792 thermal elements.
printhead elements
The parts of the printhead that print by placing a mark on the label when heated. Each
element is switched on and off separately in order to react with the media or thermal
transfer ribbon to create a mark on the label.
ready
The state in which the printer is able to print; the normal operating state of the printer.
Ready/Busy line
Pin 11/20 of the rear panel connector. Indicates the printer is ready or not ready.
RS-232
Widely recognized protocol standard for serial binary data interchange. The standard
covers the physical, electrical, and functional characteristics of the interface.
RS-422
Standard for the voltage and impedance levels for serial data transmission on balanced
lines. Similar to RS-232, but handles larger distances and faster communication.
RS-485
Standard for allowing multiple devices to share a common set of serial data
communication lines. The signaling is very similar to RS-422. The maximum number of
devices allowed is 32.