
SIO (Simultaneous Interface Operat ion)
The capability of printing to all three of the printer's concurrently active ports 
rather than being restricted to one. 
Soft Fonts
Fonts created or stored on disks. They can be transferred to the printer’s 
memory and remain available to be used until the printer is turned off. See 
also 
download
.
Spool
An acronym for simultaneous print operations on line. Spooling is tempo-
rary storage to hold print jobs until the printer is available to process them.
Start-up Page
A page generated when you turn on the printer (unless you have disabled 
it). It gives limited information on the printer, including name, pages printed, 
current interface settings, and amount of RAM available.
Storage
A device in or on which information can  be kept. There are three main types 
of storage, ROM, RAM, and hard disks. ROM stores read-only data, RAM 
represents temporary storage, and hard disks hold information on a more 
permanent basis. See also 
hard disk
, 
RAM
, 
ROM
, 
spool
.
System Administrator
The person in charge of managing a network; also called a network 
administrator.
Timeout 
The expiration of a predefined interval, that triggers some action such as 
a disconnection that occurs following 30 seconds without any data activity 
(in a 30-second, no-activity timeout). Timeout also refers to the length or 
existence of such an interval. 
Toner
A dry, powdered substance capable of being attracted to electrically 
charged areas on a photosensitive revolving drum. The printer's EP (elec-
trophotographic) toner cartridge holds the toner. The toner is first attracted 
to this charged area, then attracted to the negatively charged paper. The 
toner is melted (or fused) in place by the fuser assembly.