1/05
11-5
DocuColor 12/DCCS50
Glossary of Terms
Reissue
MRD Machine Resident Diskette, 3.5-inch floppy diskette stored on the
bottom rear cover of the machine. Used to store NVM (backup)
and ELOG files.
msec. milliseconds
MSI Multi-Sheet Inserter
NASG North American Solutions Group
NSF Non-Standard Facilities
NVM Non-Volatile Memory. Random Access Memory device (RAM)
OB Outboard; the side of the paper path closer to the front of the
machine; t
oward the outside of the machine.
OCT Offset Catch Tray
Ohms a unit of measurement of electrical resistance
OPC Organic Photo Conductor
PC Personal Computer
PCL5 Printer Control Language
PCMCIA Personal Computer Memory Card International Association
PIX Picture data (pixel)
PL Parts List
PMC Preventive Maintenance Call
PO/PO Power Off/Power On the machine.
POST Power On Self Test
PPI Pixels per Inch
PPM Prints per Minute
PPM Pages per Minute
PROM Programmable Read Only Memory
PS PostScript
PSTN Public Switched Telephone Network
PWB(A) Printed Wiring Board Assembly
PWS Portable Workstation
RADC Random Access Density Control
R/E Reduction/Enlargement
RAM Random Access Memory. A digital memory circuit from which
inf
ormat
ion can be accessed or where software information can be
stored.
RAP Repair Analysis Procedure
R/H Right Hand
RE Reduction, Enlargement
Regi. Registration
RGB Red Green Blue
ROM Read Only Memory. A digital memory circuit that is designed to
cont
ain permanent software information.
ROS Raster Output Scanner (name given to a laser unit)
Table 1 Glossary of Terms
Term D
escription
RTC Return to Control
RTN Retrain Negative
RTP Retrain Positive
RX Rank Xerox (obsolete term, see XL)
SA System Administrator
SCSI Small Computer Systems Interface
SEF Short Edge Feed; Landscape orientation
SIMM Single Inline Memory Module
Skew Angular error between the xerographic image and the copy paper,
m
easured at
the lead edge.
SOS Start of Scan
SPI Spots per Inch
SR Service Representative
SSR Solid State Relay
SW Switch or Software
T/A Takeaway
TAG Hardware upgrade information
TMB Tower Mailbox
TP Test Point
TRC Toner Reference Control
TRC RADC Toner Reference Control Random Access Density Control
TRN Train
TTL Transistor Logic: A digital circuit with transistor input and transistor
ou
tput
.
TTM Tray Turn Module
UART Universal Asynchronous Receiver Transmitter
UI User interface
USCO United States Customer Operations
VAC Voltage Alternating Current
VCE Video Compression and Expansion
VDC Voltage Direct Current
Xero Xerographics
VRAM Volatile Random Access Memory
XE Xerox Europe (formerly RX, or Rank Xerox)
XVDC Generic Voltage DC
XPC ASIC X direction pixel count application specific integrated circuit
Y Yellow
Table 1 Glossary of Terms
T
erm D
escription
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