HID HDP5000 - Page 354

All rights reserved HID Global Corporation
HDP5000 High Definition Card Printer/Encoder User Guide L000950 Rev 1.8
354
Section 18: Glossary of Terms
Term Definition
Dither A system of distributing dots to control the hue, brightness and/or
saturation. In monochrome printing, this controls the brightness.
In color printing, Dithering can supply a larger color gamut than
non-Dithering. In the Driver, Dither modes can be selected to
provide better image quality depending on the type of image to be
printed.
Dongle A peripheral that attaches to a port to act as a key for an installed
application. The PC is able to run that application only when the
dongle is installed. Typically, it works as a pass-through device
and is connected in serial to the parallel cable.
Dot The smallest unit of an image that the Printer is able to produce.
The smaller the dot, see dot pitch, the sharper the image.
Dot pitch A measurement of image sharpness denoting the width of the
dots that makes up a pixel. The smaller the pitch, the sharper the
image.
Download The transfer of a data file from one device to the other over a
network or cable, typically from the Internet to a PC.
DPI (Dot Per Inch) A measurement of the Printer resolution indicating how many dots
a Printer can produce in a linear inch.
DRAM (Dynamic
Random Access
Memory)
A microchip based volatile memory storage device. The Printer
uses this to Buffer a print job, transferred from the PC, until the
Printer is able to process the packet.
Driver Software utility installed in Windows, that interfaces an application
to rasterize image data and include command codes so the
Printer can process the file.