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 simulation,
which concerns an abstract model of the system being simulated, often considering its internal state.
Ethernet
Ethernet is a frame-based computer networking technology for local area networks (LANs). It defines wiring and
signaling for the physical layer, and frame formats and protocols for the media access control (MAC)/data link layer of
the OSI model. Ethernet is mostly standardized as IEEE 802.3. It has become the most widespread LAN technology in
use during the 1990s to the present.
EtherTalk
A suite of protocols developed by Apple Computer for computer networking. It was included in the original Macintosh
(1984) and is now deprecated by Apple in favor of TCP/IP networking.
FDI
Foreign Device Interface (FDI) is a card installed inside the machine to allow a third party device such as a coin
operated device or a card reader. Those devices allow the pay-for-print service on your machine.
FTP
A File Transfer Protocol (FTP) is a commonly used protocol for exchanging files over any network that supports the
TCP/IP protocol (such as the Internet or an intranet).
Fuser Unit
The part of a laser printer that melts the toner onto the print media. It consists of a hot roller and a back-up roller.
After toner is transferred onto the paper, the fuser unit applies heat and pressure to ensure that the toner stays on
the paper permanently, which is why paper is warm when it comes out of a laser printer.
Gateway
A connection between computer networks, or between a computer network and a telephone line. It is very popular,
as it is a computer or a network that allows access to another computer or network.
Grayscale
A shades of gray that represent light and dark portions of an image when color images are converted to grayscale;
colors are represented by various shades of gray.
Halftone
An image type that simulates grayscale by varying the number of dots. Highly colored areas consist of a large number
of dots, while lighter areas consist of a smaller number of dots.
HDD
Hard Disk Drive (HDD), commonly referred to as a hard drive or hard disk, is a non-volatile storage device which
stores digitally-encoded data on rapidly rotating platters with magnetic surfaces.
