Muratec MFX-1300/1700 - Manual (Page 141)

Just in case
Default The setting your machine will always refer to if no other action has been programmed.
For example, you can set the default for this machine to send a fax by using its memory. If you set
this action as the default, that s how your machine will always send a fax, until you tell it to do dif-
ferently.
Delayed command Transmission or polling operation set by the user to occur later, automati-
cally, at a predetermined time. Great for reducing costs by making fax calls during times when
telephone costs are lowest, such as late at night or on weekends.
Digital Using the binary system (which uses a combination of 0s or 1s) to describe everything,
so that 0 means off and 1 means on; digital fax machines convert the graphic image of your docu-
ment into a series of zeros and ones by using the binary system of transmission to encode black
and white occurrences. This increases transmission speed by passing over white spaces. See
also White-line skip.
Digital fax Unlike analog systems that scan every portion of a document, digital fax machines
survey a document s overall picture content. Digital fax machines scan a line and convert the
information into a binary code of zeros and ones. The fax machine takes this information and
compresses it, providing high transmission speeds. Many Muratec units offer proprietary methods
for faster transmissions between Muratec-manufactured units (see also M S E , S M S E ) .
DIP switches Dual in-line package switch; a two-position on/off switch. Many Muratec fax
machines include DIP switches to control optional settings or features.
Document feeder The adjustable slot into which users place documents for faxing or copying.
Effective printing width The widest image that can be printed on a fax.
Effective scan width The maximum width the scanner in a fax can scan during transmission.
F-Code A fax-industry standard created by the ITU - T for sub-addressing/password-based com-
munications. Because F-Code is an industry standard, Muratec fax machines as well as all ITU - T
equipped fax machines from other manufacturers can communicate with each other using sub-
addressing.
Facsimile (or fax) A form of communication involving the scanning and decoding of a document
into electrical signals and transmitting of the document, over telephone lines to another device.
This device then reconstructs the signals to produce an exact duplicate of the document. Also, a
machine that performs such communication.
Fallback Group 3 fax machines operate at the highest transmission speed possible on a given
telephone line. Muratec systems offer automatic fallback; if line quality drops during transmission,
the fax machine will reduce speed to the fastest possible level.
File number A number the machine gives to each document it stores for a batch, F-Code or
polling operation.
Fine resolution 203 H
× 196 V lpi. Also shown as G 3 F ( Group 3 fine ) on some fax units.
Grayscale Not a level of resolution, but a method of scanning and transmitting halftone
images. Fax machines with grayscale abilities interpret photographs in
levels of gray between white and black. The transmitting fax machine must have grayscale ability
to send a photographic image accurately, but the receiving machine does not need it to print the
image.
Group 3 Refers to fax machines that use digital encoding. These units transmit one page in
less than one minute and produce resolution of 203 Ч 98, 203 Ч 196, or 406 × 392 lpi.
Halftone See Grayscale.
Handshaking An exchange of data between telecommunications and/or
computer equipment that introduces two systems to each other. For example, faxes use a hand-
shaking protocol to identify the ITU - T group of each unit and to begin fax communication.
Hub See Relay broadcasting.
Hz (or Hertz) A measure of frequency equal to one cycle per second. Used in the specifica-
tions for a fax machine, it identifies the A C power the unit requires.
ITU - T International Telecommunications Union Telecommunications Sector. (Formerly known
as CCITT , for Consultative Committee for International Telegraph and Telephone.) A telecommuni-
cations forum for member countries of the United Nations whose Study Group XIV established the
primary groups for fax equipment, covering communication protocol and transmission. Muratec
Group 3 fax machines offer the fastest transmissions allowed by the ITU - T when communicating
with other Group 3 units.
ITU - T Test Document 1 Also called the Slerexe ( slehr-rehks ) letter; An ITU - T standard docu-
ment with a known black density which fax makers often use to test transmission speeds of their
fax machines. Published transmission speeds are also based on this document.
ITU - T V .29 and V .27 ter. A standard set of communication procedures allowing fax machines to
talk to all other units adhering to those standards.
JBIG Joint Bi-level Image experts Group, the new ITU - T standard image data compression
method. As JBIG compresses the data more efficiently than M M R , it is especially effective when
transmitting halftone (grayscale) image document.
(Of course, the compression ratio may vary with the image data.)
Laser printing A plain-paper printing system. Toner is attached to a charged drum and an
image is transferred onto plain paper through electrical currents, then fused with heat and pres-
sure to produce a dry, permanent printout.
L C D Liquid crystal display. Used on some Muratec units for status displays.
Leased line See Private line.
Load number A number assigned to telecommunications equipment used in Canada;
designed to help prevent overloading on a telephone circuit. See also Ringer equivalence num-
ber.
Location ID See Station ID .
lpi Lines per inch. The way fax image resolution is measured. (For example, see Normal reso-
lution.)
Memory Internal document storage. In Muratec fax machines, random access memory in the
form of computer chips is used to store and hold documents for transmission and to hold some
documents that have been received.
Memory overflow A message that appears on the machine s LCD when the
current operation requires more of the machine s electronic memory than what is available.
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