Glossary | 121
DIMM
Dual Inline Memory Module (DIMM), a small circuit board that holds memory. DIMM stores all the data within
the machine like printing data, received fax data.
DLNA
The Digital Living Network Alliance (DLNA) is a standard that allows devices on a home network to share
information with each other across the network.
DNS
The Domain Name Server (DNS) is a system that stores information associated with domain names in a
distributed database on networks, such as the Internet.
Dot Matrix Printer
A dot matrix printer refers to a type of computer printer with a print head that runs back and forth on the page
and prints by impact, striking an ink-soaked cloth ribbon against the paper, much like a typewriter.
DPI
Dots Per Inch (DPI) is a measurement of resolution that is used for scanning and printing. Generally, higher DPI
results in a higher resolution, more visible detail in the image, and a larger file size.
DRPD
Distinctive Ring Pattern Detection. Distinctive Ring is a telephone company service which enables a user to use
a single telephone line to answer several different telephone numbers.
Duplex
A mechanism that will turn over a sheet of paper so that the machine can print (or scan) on both sides of the
paper. A printer equipped with a Duplex Unit can print on both sides of paper during one print cycle.
Duty Cycle
Duty cycle is the page quantity which does not affect printer performance for a month. Generally the printer
has the lifespan limitation such as pages per year. The lifespan means the average capacity of print-outs,
usually within the warranty period. For example, if the duty cycle is 48,000 pages per month assuming 20
working days, a printer limits 2,400 pages a day.
ECM
Error Correction Mode (ECM) is an optional transmission mode built into Class 1 fax machines or fax modems.
It automatically detects and corrects errors in the fax transmission process that are sometimes caused by
telephone line noise.
Emulation
Emulation is a technique of one machine obtaining the same results as another.
An emulator duplicates the functions of one system with a different system, so that the second system behaves
like the first system. Emulation focuses on exact reproduction of external behavior, which is in contrast to
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