BUS Updated 12/2011
07/2011
6-67
WorkCentre 5335 Family Service Documentation
Glossary of Terms
General Procedures & Information
Initial Issue
LDAP
Lightweight Directory Access Protocol - an application protocol for querying
and modifying directory services running over TCP/IP
LE
Lead Edge of copy or print paper, with reference to definition of term TE
LED
Light Emitting Diode
LEF
Long Edge Feed
LTR
Letter size paper (8.5 x 11 inches)
LocalTalk
a particular implementation of the physical layer of the AppleTalk network-
ing system from Apple Computer. LocalTalk specifies a system of shielded
twisted pair cabling, plugged into self-terminating transceivers, running at a
rate of 230.4 kbit/s.
LUT
Look Up Table - array of NVM locations that store process control data
LVPS
Low Voltage Power Supply
MIME
Multipurpose Internet Mail Extensions - an Internet standard that extends
the format of e-mail to support:
Text in character sets other than ASCII
Non-text attachments
Message bodies with multiple parts
Header information in non-ASCII character sets
MCU
Machine Control Unit - a microcontroller (also microcomputer, MCU or µC)
is a small computer on a single integrated circuit consisting internally of a
relatively simple CPU, clock, timers, I/O ports, and memory.
MF
Multi-Function
MN
Multinational
MOB
Marks On Belt> MOB Sensor is used to determine Color Registration
MRD
Machine Resident Disk
MSI
Multi Sheet Inserter
NAK
Negative Acknowledgement - negative acknowledgment or not acknowl-
edged. It is a signal used in digital communications to ensure that data is
received with a minimum of errors.
NIC
Network Interface Card
NVM
Non Volatile Memory
OCT
Offsetting Catch Tray
OEM
Original equipment manufacturer
OGM
On-going Maintenance
PC
Personal Computer
PCI
Peripheral Component Interconnect - a computer bus for attaching hard-
ware devices in a computer. These devices can take either the form of an
integrated circuit fitted onto the motherboard itself, called a planar device in
the PCI specification, or an expansion card that fits into a slot.
PDL
Page Description Language - a language that describes the appearance of
a printed page in a higher level than an actual output bitmap.
PIO
Programmed Input/Output - a method of transferring data between the CPU
and a peripheral such as a network adapter or an ATA storage device.
Table 1 Glossary
Term
Description
PJL
Printer Job Language - a method developed by Hewlett-Packard for switch-
ing printer languages at the job level, and for status readback between the
printer and the host computer.
PL
Parts List
P/O
Part of (Assembly Name)
POP Server
Post Office Protocol - Version 3 (POP3) is intended to permit a workstation
to dynamically access a maildrop on a server host in a useful fashion. Usu-
ally, this means that the POP3 protocol is used to allow a workstation to
retrieve mail that the server is holding for it.
PWB
Printed Wiring Board
PWS
Portable Workstation for Service
PJ
Plug Jack (electrical connections)
Proxy Server
a server (a computer system or an application program) that acts as an
intermediary for requests from clients seeking resources from other servers.
RAM
Random Access Memory
RAP
Repair Analysis Procedure for diagnosis of machine status codes and
abnormal conditions
R/E
Reduction/Enlargement refers to features selection or components that
enable reduction or enlargement
Redirector
an operating system driver that sends data to and receives data from a
remote device. A network redirector provides mechanisms to locate, open,
read, write, and delete files and submit print jobs.
RegiCon
Registration Control
REP
Repair Procedure for disassembly and reassembly of component on
machine
RIS
Raster Input Scanner
ROM
Read Only Memory
SAD
Solid Area Density
SCP
Service Call Procedure
SEF
Short Edge Feed
Self-test
An automatic process that is used to check Control Logic circuitry. Any fault
that is detected during self-test is displayed by fault code or by LEDs on
PWB.
SIMM
Single Inline Memory Module used to increase printing capacity
Simplex
Single sided copies
SIP
Session Initiation Protocol - a signaling protocol, widely used for controlling
multimedia communication sessions such as voice and video calls over
Internet Protocol (IP).
S/MIME
Secure/Multipurpose Internet Mail Extensions - a standard for public key
encryption and signing of MIME data.
Software Key a small program that will generate valid CD keys or serial/registration num-
bers for a piece of software.
SSL
Secure Socket Layer - cryptographic protocols that provide security for
communications over networks such as the Internet
Table 1 Glossary
Term
Description