Lexmark W820 Service Manual page 79

Interlock
IOT
J-
J
L-
Laser
Laser beam path
Laser Diode
Latent image
LD
LCD
LED
L/H
Low (signal)
LS
LVPS
M-
MCU
MBX
MOT
N-
NC
NVRAM
O-
OHP
OP
Output test
P-
P
4025 Options
Interlock switch or circuit. Used as a safety measure to
remove voltage from circuits whenever the printer covers are
open or printer assemblies are not in position
Image Output Terminal. Acronym that is sometimes used in
schematic diagrams to describe the base print engine
Jack. A female electrical connector
Refers to either the Laser Diode Assembly or to the laser
beam
The path the laser beam takes, through lenses and mirrors,
from the Laser Diode to the surface of the drum
Semiconductor device that generates the laser beam used in
the Printhead
The invisible, electrical image remaining on the surface of the
drum after exposure
Laser Diode
Liquid Crystal Display
Light Emitting Diode
Left Hand
A signal voltage that is significantly lower than the base
voltage
Low Speed
Low Voltage Power Supply
Machine Control Unit. The board that controls the operation
of the printer, synonym for Engine Board and MCU PWB
Mailbox
Motor
No Connection
Non-Volatile Random Access Memory
Transparency print media
Open
Diagnostic routine used to switch on motors, solenoids, and
clutches
Plug. A male electrical connector
1-67
General Information