HID HDP5000 User Manual page 358

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Section 18: Glossary of Terms
Term
FPGA (Field
Programmable Gate
Array)
Full bleed
Gamma
Glossy / Matte
Glossy PVC
Graphical Device
Interface (GDI)
Gray Scale
Halftoning
HDP5000 High Definition Card Printer/Encoder User Guide
Definition
A microchip with configurable logic circuits installed that takes
care of the very high speed and intensive data manipulations
needed by the printing engine.
Printing that covers the entire card surface.
The degree of contrast of an image or the display of a monitor
determined by the slope of a characteristic curve relating optical
density to relative log exposure.
A smooth polished surface in comparison to a rougher matte
surface. Matte cards have a surface index (Ra) of approximately
65 microinches while glossy have a Ra = 3.
A card made of PVC with a smooth polished surface (Surface
roughness of approximately 0 - 10 micro-inches). This is required
for direct to card Dye-Sublimation printing.
A Windows standard for protocol between Drivers and
applications and the Windows interface. An application uses a
Driver to rasterize the data in the format necessary for the Printer
but also for the Windows interface to execute the print
commands.
A graduation through the various brightness levels from white to
black.
A process in monochrome printing that simulates continuous tone
by using changes to the distribution of single dots. Increasing the
number of dots in a given area increases the darkness even
though the individual dots stay the same size.
HID Global Corporation
L000950 Rev 1.8 358