Xerox WorkCentre Pro 423 WorkCentre Pro 428 Service Manual & Parts List

Service Manual & Parts List Xerox WorkCentre Pro 423 WorkCentre Pro 428;
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SECTION 1: SERVICE CALL PROCEDURES
SECTION 2: TROUBLESHOOTING
2.1 Preface
2.2 Level 1 Troubleshooting
2.3 Level 2 Troubleshooting
2.3.1 Status Code Lists
2.3.1.1 Types of Status Code
2.3.1.2 A List of IIT/IOT Status Codes
2.3.1.3 ESS/Fax Status Codes
2.3.1.4 V Code List
2.3.1.5 K Code List
2.3.1.6 D Code List
2.3.1.7 Corrective Action for X Codes
2.3.1.8 Corrective Action for X Codes Flow Chart
2.3.1.9 Activity Report in User Mode
2.3.1.10 Activity report in Diag C/E Mode
2.3.1.11 Protocol Monitor
2.3.1.12 X Codes List
2.3.1.13 Printer/ESS Codes List
2.3.1.14 Internal Codes List
2.3.2 Troubleshooting in ISDN Communication
2.3.2.1 ISDN Line Basic Troubleshooting Flow
2.3.2.2 ISDN Basic Sequences
2.3.2.3 G4 Fax Protocol Monitor
2.3.2.4 D Channel Troubleshooting
2.3.2.5 B Channel Troubleshooting
2.3.2.6 ISDN Fax Installation Notes
2.3.2.7 Explanation of Common Terms
2.3.2.8 Installation Notes
2.3.2.9 Cases of Parameter Setting Error or Mismatch
2.3.3 Super G3 Fax
2.3.3.1 Super G3 Fax Introduction
2.3.3.2 V.8 CM/JM Signal
2.3.3.3 V.8 Operation for Auto Transmission
2.3.3.4 V.8 Operation for Manual Transmission
2.3.3.5 Troubleshooting of Super G3 Fax
2.3.4 IIt/IOT Status Code FIP
2.3.5 Other Fault FIP
2.3.6 General Purpose FIP
2.4 How to Use the Diagnostic (C/E) Mode
2.4.1 Entering the Diagnostic (C/E Mode)
2.4.2 Exiting the Diagnostic (C/E Mode)
2.4.3 Entering the Chain Function
2.4.4 Changing the Chain Function
2.4.5 Memory Read/Write
2.4.6 Memory Clear
2.4.7 ASCII Code
2.4.8 Self-Diagnosis
2.4.9 Chain Function Codes
2.4.9.1 Output Check Chain Function Code List
2.4.9.2 Input Check Chain Function Code List
2.4.9.3 NVM Settings
2.4.9.4 Test Print
2.4.9.5 Billing/EPSV
2.4.9.6 Custom Presets
2.4.9.7 HFSI Counter/CRUM
2.4.9.8 Fault History/Counter
2.4.9.9 Mode Set
2.4.9.10 Automatic Diagnostic
2.4.9.11 Signal Send test
2.4.9.12 Fax System Data

SECTION 3: IMAGE QUALITY TROUBLESHOOTING
3.1 Introduction
3.1.1 Chapter 3 Composition and Distinction
3.1.2 How to Use the Image Troubleshooting
3.2 Image Quality Specifications
3.2.1 Test Pattern Types
3.2.2 How to Use the Test Pattern
3.2.3 Built-in Test Pattern
3.3 Image Quality Troubleshooting
3.3.1 Copy Sample
3.3.2 Cautions on image quality troubleshooting
3.3.3 Basic rules on action against image quality problems
3.3.4 Image Quality Adjustment
3.3.5 Corrective action against image quality problems
C – 1 Too light copies
C – 2 White copies
C – 3 White off: Copy sample
C – 4 White off: Copy sample
C – 5 White off Copy sample
C – 6 Spot white off Copy sample
C – 7 Black lines Copy sample
C – 8 Black lines Copy sample
C – 9 Black spots Copy sample
C – 10 Belt high-background Copy sample
C – 11 Belt high-background Copy sample
C – 12 High background Copy sample
C – 13 Solid black copies
C – 14 Skip
C – 15 Smear Copy sample
C – 16 Jitter/Data error Copy sample
C – 17 Distortion (Hunting) Copy sample
C – 18 Banding Copy sample
C – 19 Magnification failure Copy sample
C – 20 Poor resolution
C – 21 Residual image (ghost)
C – 22 Finger Mark
C – 23 Moiré
C – 24 Poor fusing
C – 25 Poor registration: Copy sample
C – 26 Uneven density: Copy sample
C – 27 Wrinkle in copies
C – 28 Skew
C – 29 Black bands
C – 30 Dark copies

SECTION 4: DISASSEMBLY/ASSEMBLY AND ADJUSTMENT
4.1 INTRODUCTION
4.2 DISASSEMBLY AND ASSEMBLY
1. Drive
REP 1.1.1Main Drive Assembly
2. Paper Transport
REP 2.2.2Size Cam
REP 2.4.1R/H Chute Assembly
REP 2.4.2Exit Assembly
REP 2.4.3OCT Assembly
REP 2.11.1 Registration Chute Assembly
3. IIT
REP 3.1.1Platen Glass
REP 3.1.2 IIT/IPS PWB
REP 3.2.1 Lens Assembly and CCD PWB
REP 3.3.1 Timing Pulley
REP 3.3.2Carriage Cable
REP 3.4.1Exposure Lamp
REP 3.4.2 Lamp Wire Harness
REP 3.5.1Platen Cushion
REP 3.6.1Control Panel
4. ROS
REP 4.1.1ROS
6. Fuser
REP 6.1.1 Fuser Assembly
REP 6.2.1Pressure Roll
REP 6.2.2Heater Rod
7. Electrical
REP 7.2.1MCU/SW PWB Assembly
REP 7.5.1 ESS PWB Assembly
8. Covers
REP 8.1.1 Top Cover
9. Cabinet
REP 9.1.1Drive Joint
REP 9.5.1Option Mother PWB
REP 9.7.1 Feed Roll
REP 9.7.2Retard Roll
REP 10.1.1 DADF Assembly
REP 10.1.2 DADF Platen Glass
REP 10.1.3 DADF Platen Cushion
REP.10.2.1 DADF Feeder Assembly
REP 10.3.1 Left/Right Counter Balance
REP 10.5.1 DADF Nudger Roll
REP10.5.2 DADF Feed Roll
REP 10.6.1 Reg Roller
REP 10.6.2 Size Sensor Assembly
11. MSI
REP 11.1.1 MSI Assembly
REP 11.4.1 MSI Feed Roll
REP 11.4.2 MSI Retard Roll
13. Finisher
REP 13.1.1 Finisher Assembly
REP 13.4.1 Stapler Motor
REP13.5.1 Reverse Motor Belt
REP 13.5.2 Feed Motor Belt
REP 13.12.1Compiler Motor
REP 13.14.1Exit Roller Assembly
REP 13.14.2In-Roller Assembly
REP 13.14.3 Lower Paper Guide
REP 13.16.1 Finisher Control PWB
4.3 ADJUSTMENT
3. IIT
ADJ 3.1.1 IIT Lead Edge Registration (Home Position in Slow Scan Direction)
ADJ 3.1.2 IIT Side Registration (Home Position in Fast Scan Direction)
ADJ 3.1.3DADF Registration
ADJ 3.1.4 Magnification Adjustment SEF (Slow Scan Direction)
ADJ 3.1.5 Magnification Adjustment in LEF (Fast Scan Direction)
ADJ 3.4.1 Position of Full/Half Rate Carriage
7. ELECTRICAL
ADJ 7.1 Registration Procedure
ADJ 7.2.1 IOT Lead Edge Registration
ADJ 7.2.2 IOT Side Registration
ADJ 7.2.3 Edge Erase Amount Adjustment
13. Finisher
ADJ 13.6.1 Adjusting the Paddle Position

SECTION 5: PARTS LIST
5.1 Preface
5.1.1 How to Use Parts List
5.1.2 Notes on Using Parts List
5.1.3 Plate Configuration
5.1.4 Explanation of Terms and Symbols
5.2 Parts List
PL 1 Drive
PL 1.1 Drive
PL 2 Paper Transport
PL 2.1 Tray1
PL 2.2 Tray1 Assembly
PL 2.3 Paper Feed (1/2)
PL 2.4 Paper Feed (2/2)
PL 2.5 T/A Chute Assembly
PL 2.6 R/H Chute Assembly
PL 2.7 Exit Assembly
PL 2.8 OCT Assembly (1/3)
PL 2.9 OCT Assembly (2/3)
PL 2.10 OCT Assembly (3/3)
PL 2.11 Registration
PL 2.12 Registration Chute Assembly
PL 3 IIT
PL 3.1 Platen Glass and IPS PWB
PL 3.2 Lens Assembly and CCD PWB
PL 3.3 Carriage Motor and Carriage Cable
PL 3.4 Full Rate Carriage and Half Carriage
PL 3.5 Platen Cover
PL 3.6 Top Cover, Control Panel
PL 3.7 Touch Panel, Handset
PL 4 ROS
PL 4.1 ROS
PL 5 XERO/DEVE
PL 5.1 XERO/DEVE (1/2)
PL 5.2 XERO/DEVE (2/2)
PL 6 Fuser
PL 6.1 Fuser Assembly (1/2)
PL 6.2 Fuser Assembly (2/2)
PL 7 Electrical
PL 7.1 IOT Electrical (1/2)
PL 7.2 IOT Electrical (2/2)
PL 7.3 MF Box (1/2)
PL 7.4 MF Box (2/2)
PL 7.5 ESS Box
PL 7.6 ESS Option
PL 8 Cover
PL 8.1 Cover-Top, Control Panel
PL 8.2 Cover-Front
PL 8.3 Cover-Rear/Right
PL 9 Cabinet
PL 9.1 Feed Motor, PWB
PL 9.2 T/A Roller
PL 9.3 Switch PWB, Sensor
PL 9.4 Right Cover Assembly
PL 9.5 Option Box Assembly
PL 9.6 Tray 2/3/4 Assembly
PL 9.7 Tray (1/3)
PL 9.8 Tray (2/3)
PL 9.9 Tray (3/3)
PL 9.10 Cover
PL 10 DADF
PL 10.1 DADF Assembly
PL 10.2 DADF Feeder Assembly
PL 10.3 Base Cover, Counter Balance
PL 10.4 Top Cover Assembly (1/2)
PL 10.5 Top Cover Assembly (2/2)
PL 10.6 Chute, Regi Roller
PL 10.7 Exit Roller, Read Roller
PL 10.8 DADF Feed/Drive Motor
PL 10.9 Document Tray (DMO-E)
PL 10.10 Document Tray (DMO-W/OSG)
PL 11 MSI
PL 11.1 MSI Assembly
PL 11.2 MSI Tray
PL 11.3 Base Tray
PL 11.4 Feed/Retard Roller
PL 12 Duplex
PL 12.1 Duplex
PL 13 Finisher
PL 13.1 Finisher Assembly
PL 13.2 Front Side Switch/Sensor
PL 13.3 Stapler Assembly, Base Cover
PL 13.4 Stapler Motor
PL 13.5 Reverse/Feed Motor
PL 13.6 Paddle Solenoid, Exit Roller Assembly
PL 13.7 Transfer Motor, C Paper Guide
PL 13.8 Top Cover, FT Paper Guide
PL 13.9 L/H Upper Cover

SECTION 6: GENERAL PROCEDURES
6.1 Specifications
6.1.1 Product Name/Prod
6.1.2Machine Size/Weight/Space Requirement
6.1.3 Copy Features
6.1.4 Fax Features
6.1.5 Direct FAX Specification/Functions
6.1.6 Printer feature
6.1.7 System feature � Memory
6.1.8 Electrical feature
6.1.9 Input area features
6.1.10 DADF Specification
6.1.11 Scanner specifications/functions
6.1.12 Output area feature
6.1.13 Stapler Finisher (Option) Specification
6.1.14 Environmental requirement
6.1.15 Optional specifications
6.2 Tools and Service Consumables
6.2.1 Tools
6.2.2 Service Consumables
6.3 Consumables
6.4 Modification
6.4.1 Symbology
6.4.2Modification List
6.5 Installation
6.6 Removal
6.7 Custom Presets
6.7.1 Custom Presets Chain-Function Code List
6.7.2 How to change Custom Presets in User mode
6.8 General Information
6.8.1 Forced polling of documents stored in memory
6.8.2 How to By-pass the IOT Password Protection
6.8.3 Location of Serial Number Plate
6.8.4 How to Read Emergency History
6.8.5 Copy features list
6.8.6 Fax features list
6.9 Function Flow (Function Tree)

SECTION 7: ELECTRICAL WIRING DIAGRAMS
7.1 Plug/Jack Information
7.1.1 How to Use Plug/Jack Information
7.1.2 Plug/Jack Index
7.2 Plug/Jack Location Diagrams
7.2.1 Control Panel
7.2.2 IIT
7.2.3 HVPS/Printer Panel
7.2.4 ROS
7.2.5 IOT Right Location
7.2.6 T/A Chute Assembly
7.2.7 Fuser/CRU
7.2.8 Tray 1No Paper Sensor/Low Paper Sensor
7.2.9 RH Unit 1
7.2.10 RH Unit 2
7.2.11 MSI
7.2.12 Power Unit
7.2.13 MF Box
7.2.14 ESS
7.2.15 IOT Rear Location
7.2.16 MCUSW PWB
7.2.17 Cabinet(No Paper Sensor/Low Paper Sensor)
7.2.18 Cabinet(Interlock Switch/Tray 3 T/A Sensor)
7.2.19 Cabinet Rear
7.2.20 Option Box

SECTION 8: ACCESSORIES
8.1 Additional Tray Kit
8.1.1 Product Code
8.1.2 Installation Procedure
8.2 Upgrade Kit A(4MB) FX Only
8.2.1 Product Outline
8.2.2 Product Code
8.2.3 Installation Procedure
8.3 Electronic Sort Kit
8.3.1 Product Outline
8.3.2 Product Code
8.3.3 Installation Procedure
8.4 Offset Output Kit
8.4.1 Product Outline
8.4.2 Product Code
8.4.3 Installation Procedure
8.5 MSI Kit
8.5.1 Product Code
8.5.2 Installation Procedure
8.6 Duplex Unit Kit
8.6.1 Product Outline
8.6.2 Product Code
8.6.3 Installation Procedure
8.7 Side Tray Kit
8.7.1 Product Outline
8.7.2 Product Code
8.7.3 Installation Procedure
8.8 Stapler Finisher
8.8.1 Product Outline
8.8.2 Product Code
8.8.3 Installation Procedure
8.9 English Kit
8.9.1 Product Code
8.9.2 Installation Procedure
8.10 FAX Unit
8.10.1 Product Outline
8.10.2 Product Code
8.10.3 Installation Procedure
8.11 Speed Dial Expansion Kit
8.11.1 Product Outline
8.11.2 Product Code
8.11.3 Installation Procedure
8.12 G3 Port
8.12.1 Product Outline
8.12.2 Product Code
8.12.3 Installation Procedure
8.13 ISDN/G4 Kit
8.13.1 Product Outline
8.13.2 Product Code
8.13.3 Installation Procedure
8.14 G4 Port
8.14.1 Product Code
8.14.2 Installation Procedure
8.15 Line/Ext Switching Kit
8.15.1 Product Outline
8.15.2 Product Code
8.15.3 Installation Procedure
8.16 Fax Hard Disk Kit
8.16.1 Product Outline
8.16.2 Product Code
8.16.3 Installation Procedure
8.17 8MB Memory
8.17.1 Product Outline
8.17.2 Product Code
8.17.3 Installation Procedure
8.18 Printer Kit
8.18.1 Product Code
8.18.2 Installation Procedure
8.19 Internet FAX
8.19.1 Product Outline
8.19.2 Product Code
8.19.3 Installation Procedure
8.20 Token Ring
8.20.1 Product Outline
8.20.2 Produce Code
8.20.3 Installation Procedure
8.21 Duplex Auto Document Feeder
8.21.1 Product Outline
8.21.2 Product Code
8.21.3 Installation Procedure
8.22 Stamp Kit (Red)
8.22.1 Product Outline
8.22.2 Product Code
8.22.3 Installation Procedure

SECTION 9: BSD (BLOCK SCHEMATIC DIAGRAM)
9.1 Overview
9.1.1 How to Use the BSD
9.1.2 Reference Symbology
9.1.3 Signal Name Designation
9.1.4 DC Voltage
9.2 BSD (Block Schematic Diagram)
CHAIN1 STANDBY POWER
CH1.1 MAIN POWER ON
CH1.2 DC POWER GENERATION (IOT/IIT LVPS)
CH1.3 STBY+5VDC/RET DISTRIBUTION
CH1.4 +5VDC DISTRIBUTION
CH1.5 DC COM (+5VRTN) DISTRIBUTION
CH1.6 +24VDC/RET DISTRIBUTION
CH1.7A INTERLOCK SWITCHING
CH1.7B INTERLOCK SWITCHING
CH1.8 MONITORING
CHAIN2 MODE SELECTION
CH2.1 CONTROL PANEL (UI)
CH2.2 CONTROL PANEL (PRINTER)
CHAIN3 MACHINE RUN CONTROL
CH3.1A PWBS COMMUNICATION (IIT/IPS)
CH3.1B PWBS COMMUNICATION (UI)
CH3.1C PWBS COMMUNICATION (HDC&ROM)
CH3.1D PWBS COMMUNICATION (DADF)
CH3.1E PWBS COMMUNICATION (FINISHER)
CH3.2A ACCESSORY (Directly Installed On M/C) (1 OF 4)
CH3.2B ACCESSORY (Installed Via EP-SV) (2 OF 4)
CH3.2C ACCESSORY (COPYLYZER & SW) (3 OF 4)
CH3.2D ACCESSORY (Parallel) (4 OF 4)
CH3.3 ELECTRIC BILLING
CH3.4A MONITORING
CH3.4B MONITORING
CH3.4C MONITORING
CHAIN4 START PRINT POWER
CH4.1 MAIN DRIVE CONTROL
CH4.2 MONITORING
CHAIN5 DOCUMENT TRANSPORTATION (DADF)
CH5.1 DOCUMENT SET AND FEEDING
CH5.2 DOCUMENT SIZE SENSING
CH5.3 DOCUMENT TRANSPORT DRIVE
CH5.4 DOCUMENT EXPOSURE AND EXIT OR INVERSION
CH5.5 MONITORING
CHAIN6 OPTICS (IIT/ROS)
CH6.1A IMAGE INPUT CONTROL (PLATEN SWITCH AND SENSOR)
CH6.1 IMAGE INPUT CONTROL (CCD)
CH6.2 CARRIAGE SCAN
CH6.3 LASER CONTROL AND LASER SCANNING
CH6.4 ROS MOTOR CONTROL
CH6.5 MONITORING
CHAIN7 PAPER SUPPLYING
CH7.1 TRAY1 PAPER STACKING
CH7.2 TRAY2 PAPER STACKING
CH7.3 TRAY3 PAPER STACKING
CH7.4 TRAY4 PAPER STACKING
CH7.5 MSI PAPER STACKING
CH7.6 MONITORING
CHAIN8 PAPER TRANSPORTATION
CH8.1 TRAY 1 to 4 FEED CONTROL
CH8.2 MSI FEED CONTROL
CH8.3 CABINET FEED DRIVE CONTROL
CH8.4 CABINET AND MSI TRANSPORTATION
CH8.5 REGISTRATION
CH8.6 MONITORING
CHAIN9 XEROGRAPHICS
CH9.1 CRU SETTING AND DRIVING
CH9.2 CRU CONTROL
CH9.3 MONITORING
CHAIN10 FUSING AND COPY TRANSPORTATION
CH10.1 FUSING
CH10.2 FUSING HEAT CONTROL
CH10.3 FUSER EXIT TRANSPORTATION
CH10.4 DUPLEX TRANSPORTATION
CH10.5 EXIT DRIVE CONTROL
CH10.6 DUPLEX DRIVE CONTROL
CH10.7 OFFSET MOTOR DRIVE CONTROL (OPTION)
CH10.8 MONITORING
CHAIN12 FINISHER
CH12.1 FINISHER DC POWER GENRATION AND SWITCHING
CH12.2 FINISHER DOCKING AND COVER SENSING
CH12.3 FINISHER FEED IN AND REVERSE DRIVE CONTROL
CH12.4 FINISHER TRANSPORT DRIVE CONTROL
CH12.5 FINISHER TRANSPORTATION
CH12.6 RECEIVING TRAY TRANSPORTATION
CH12.7 EXIT UNIT CONTROL
CH12.8 COMPILING
CH12.9 STAPLE POSITIONING
CH12.10 STAPLE CONTROL
CH12.11A RECEIVING TRAY ELEVATOR CONTROL (1 OF 2)
CH12.11B RECEIVING TRAY ELEVATOR CONTROL (2 OF 2)
CH12.12A MONITORING (1 OF 2)
CH12.12B MONITORING (2 OF 2)
CHAIN19 ESS
CH19.1 ESS DC POWER GENERATION
CH19.2 ESS (FAX MODULE)
CH19.3 ESS (PRINTER)
CH19.4 BLOCK DIAGRAM (FAX)
CH19.5 MONITORING

Number of pages: 600.