Xerox WorkCentre 3025BI, Service Manual

Page: 141 / 156

June 2014
6-29 Xerox® WorkCentre® 3025 Multifunction Printer Service Manual
Glossary of Terms
General Procedures and Information
Glossary of Terms
NOTE: For a comprehensive list of Xerox acronyms, refer to the Xerox Acronym database at:
https://open.xerox.com/Services/acronym
Table 1 Glossary
Term/Acronym Definition
802.11 802.11 is a set of standards for wireless local area network (WLAN)
communications, developed by the IEEE LAN/MAN Standards Com-
mittee (IEEE 802).
802.11b/g/n 802.11b/g/n refers to specifications within the 802.11 family. 802.11b
is also referred to as High-Rate or Wi-Fi, 802.11g is used for transmis-
sion over short distances and 802.11n adds multiple-input multiple-
output.
Access point A device that connects wireless communication devices on wireless
local area networks (WLAN). Also acts as a central transmitter and
receiver of WLAN radio signals.
ADF Automatic Document Feeder. Scanning device that automatically
feeds a document or stack of documents.
BOOTP Bootstrap Protocol. Used by a network client to obtain an IP address
from a configuration server. During computer startup, a BOOTP con-
figuration server assigns an IP address to each client from a pool of
addresses.
Control Panel Area where control or monitoring instruments are displayed, typically
located in the front area of the machine.
Default The value or setting that is in effect when the printer/copier is first
installed, reset, or initialized.
DHCP The Dynamic Host Configuration Protocol. A standardized networking
protocol used by servers on an IP computer network to allocate
assigned IP addresses to a computer requesting an IP address.
DNS Domain Name Server. The Domain Name Server translates alpha-
betic domain names into a corresponding IP address.
DPI Dots Per Inch. The measure of the resolution of an image displayed
on a screen or on a printed page, in dots or pixels.
Duplex In printing, the capability to automatically turn over a sheet of paper so
that the machine can print both sides of the sheet during one print
cycle.
Duty Cycle The proportion of time during which a device is active. (E.g., if the duty
cycle for a printing device is 48,000 pages per month for 20 working
days, the output that device can reliably produce is 2,400 pages a
day.)
ECM Error Correction Mode. A transmission mode built into fax machines
or fax modems to automatically detect and correct errors in the trans-
mission process.
Emulation Hardware and/or software that emulates the functions of one com-
puter system (the guest) in another computer system (the host).
Fuser The Fuser subsystem permanently affixes toner onto print media by
applying heat and pressure.
Gateway A node (a router) on a TCP/IP network that serves as an access point
to another network.
Grayscale Varying shades of gray pixels ranging from black to white that repre-
sent different tones of an image.
Halftone The reprographic technique that simulates continuous tone imagery
through the use of dots, varying in either size, shape or spacing.
IP address Internet Protocol Address. A unique number that devices use to iden-
tify and communicate with each other over a network utilizing the IP
standard.
IPP The Internet Printing Protocol. A standard protocol that can be used
locally or over the internet to create and manage print jobs, and to
support access control, authentication, and encryption.
IPX/SPX Internet Packet Exchange/Sequenced Packet Exchange. A network-
ing protocol to provide connection services similar to TCP/IP, with the
IPX protocol having similarities to IP, and SPX having similarities to
TCP.
ISO International Standardization Organization. An international standard-
setting body that develops and promotes world-wide industrial and
commercial standards.
ITU-T International Telecommunication Union (Telecommunications sector).
Established to standardize and regulate international radio and tele-
communications.
ITU-T standard Chart
number 1 Standardized test chart published by ITU-T for document facsimile
transmissions.
JBIG Joint Bi-level Image Experts Group (JBIG), is lossless (no loss of
accuracy or quality) bi-level image compression standard. It’s widely
implemented in fax machines, but can also be used for other images.
JPEG Joint Photographic Experts Group. A commonly used standard
method of lossy (compressing data by losing some of it) compression
for photographic images.
LED A Light-Emitting Diode. A semiconductor device used to display
machine status.
MFP Multi Function Printer. A machine that includes multiple functions in
one device such as; printing, copying, faxing, and scanning functions.
MH Modified Huffman. A compression method for decreasing the amount
of data that needs to be transmitted between fax machines to transfer
the image.
MMR Modified Modified READ. A compression method recommended by
ITU-T T.6.
Modem Modulator-Demodulator. A device that modulates an analog carrier
signal to encode digital information, and demodulates a carrier signal
to decode the transmitted information.
MR Modified Read. A compression method that encodes the first scanned
line (using MH), then compares the next line to the first, determines
the differences, then encodes and transmits those differences.
Table 1 Glossary
Term/Acronym Definition