WorkCentre 423/428
03/02
INTRODUCTION
4
4 Abbreviations
WARNING
Use of controls or adjustments or performance of procedures other than those specified in
this manual may result in hazardous radiation exposure. This machine is certified to
comply with laser product performance standards set by the US department of health and
human services as a class 1 product. This means that it is a laser product that does not
emit dangerous laser radiation during any mode of customer operation. During servicing,
the laser beam could cause eye damage if looked at directly. The service procedures
must be followed exactly as written without change.
4 Abbreviations
This manual contains abbreviations that are specific to this manual, as well as general
abbreviations, which include:
ADC
Automatic Density Control
AG
Analogue Ground
AUX.
Auxiliary
B/W
Black and White
BCR
Bias Charge Roll
BTR
Bias Transfer Roll
BUR
Back Up Roll
CART.
Cartridge
CCW
Counter Clock Wise
CL.
Clutch
CLN
Cleaning (or Cleaner)
CLK
Clock
CR
Charge Roll
CRU
Customer Replaceable Unit
CRUM
CRU Monitor
CW
Clock Wise
DB
Developing Bias
DTS
Detack Saw
EP
Electrophotography
FDR
Feeder
FG
Frame Ground
FRU
Field Replaceable Unit
Hex
Hexadecimal
I/F
Interface
IBT
Intermediate Belt Transfer
ID
Image Density (or Identification)
L/H
Left Hand
L/P
Low Paper
LD
Laser Diode
LEF
Long Edge Feed
MSI
Multi Sheet Inserter
N/F
Normal Force
N/P
No Paper
NVM
Non Volatile Memory
O/H
Option Hinge
OPC
Organic Photo Conductor
P/H
Paper Handling
PCDC
Pixel Count Dispense Control
Pixel
Picture Cell
PPM
Prints Per Minute
PV
Print Volume
PWB
Printed Wiring Board
R/H
Right Hand
REGI.
Registration
ROS
Raster Output Scanner
RTN
Return
SEF
Short Edge Feed
SG
Signal Ground
SNR
Sensor
SOL.
Solenoid
SOS
Start Of Scan
SPI
Scans Per Inch
SYNC.
Synchronous
T/A
Take Away
TC
Toner Concentration
TEMP.
Temperature
TR
Transfer
TRANS.
Transport
WDD
Wide Range Dynamic Damper
XERO.
Xerographic
YMCBk
Yellow, Magenta, Cyan, Black
Summary of Contents for WorkCentre Pro 423
Page 2: ......
Page 3: ...WorkCentre Pro 423 428 6HUYLFH 0DQXDO...
Page 6: ......
Page 8: ......
Page 9: ...INTRODUCTION...
Page 10: ......
Page 24: ...WorkCentre 423 428 03 02 INTRODUCTION 14 7 Translation of Warnings...
Page 25: ...CHAPTER 1 SERVICE CALL PROCEDURE...
Page 26: ......
Page 28: ...WorkCentre Pro 423 428 1 2 CHAPTER 1 SERVICE CALL PROCEDURE 03 02 1 1 Trimming...
Page 31: ...CHAPTER 2 TROUBLESHOOTING...
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Page 76: ...WorkCentre Pro 423 428 2 44 CHAPTER 2 TROUBLESHOOTING 03 02 2 3 Level 2 Troubleshooting...
Page 243: ...CHAPTER 3 IMAGE QUALITY TROUBLESHOOTING...
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Page 273: ...CHAPTER 4 DISASSEMBLY ASSEMBLY AND ADJUSTMENT...
Page 274: ......
Page 329: ...CHAPTER 5 PARTS LIST...
Page 330: ......
Page 415: ...03 02 5 2 Parts List WorkCentre Pro 423 428 5 85 CHAPTER 5 PARTS LIST...
Page 416: ...CHAPTER 6 GENERAL...
Page 417: ......
Page 456: ...CHAPTER 7 ELECTRICAL WIRING DIAGRAMS...
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Page 476: ...CHAPTER 8 ACCESSORIES...
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Page 535: ...WorkCentre Pro 423 428 8 58 CHAPTER 8 ACCESSORIES 03 02 8 22 Stamp Kit Red...
Page 536: ...CHAPTER 9 BSD Block Schematic Diagram...
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