SERVICE MANUAL MODEL: MFC-8220

Transcription

1 SERVICE MANUAL MODEL: MFC-8220 Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times.

2 MFC-8220 SERVICE MANUAL PREFACE This publication is a Service Manual covering the specifications, construction, theory of operation, and maintenance of the Brother machine. It includes information required for field troubleshooting and repair--disassembly, reassembly, and lubrication--so that service personnel will be able to understand machine function, to rapidly repair the machine and order any necessary spare parts. To perform appropriate maintenance so that the machine is always in best condition for the customer, the service personnel must adequately understand and apply this manual. This manual is made up of six chapters and appendices. CHAPTER 1: GENERAL CHAPTER 2: INSTALLATION AND BASIC OPERATION CHAPTER 3: THEORY OF OPERATION CHAPTER 4: DISASSEMBLY AND RE-ASSEMBLY CHAPTER 5: PERIODIC MAINTENANCE CHAPTER 6: TROUBLESHOOTING CHAPTER 7: MAINTENANCE MODE APPENDIX 1: EEPROM CUSTOMIZING CODES APPENDIX 2: INSTALLING THE UPDATE DATA APPENDIX 3: FIRMWARE SWITCHS (WSW) APPENDIX 4: CIRCUIT DIAGRAMS Information in this manual is subject to change due to improvement or redesign of the product. All relevant information in such cases will be supplied in service information bulletins (Technical Information). A thorough understanding of this printer, based on information in this service manual and service information bulletins, is required for maintaining its print quality performance and for improving the practical ability to find the cause of problems.

3 TABLE OF CONTENTS TABLE OF CONTENTS REGULATION... viii SAFETY INFORMATION... x CHAPTER 1 GENERAL OVERVIEW SPECIFICATIONS General Environment of Installation Site Paper Copy Fax Specifications for Document Feeding System Specifications for document Specifications for ADF Printer Interfaces Consumable Items Network Paper Feedable paper Paper capacity Paper output Printable Area Print Speeds with Various Settings Toner Cartridge Weight Information SERIAL NO. DESCRIPTIONS CHAPTER 2 INSTALLATION AND BASIC OPERATION CONDITIONS REQUIRED FOR INSTALLATION Power Supply Environment System Requirements for Brother Printer Solution UNPACKING INSTALL THE MACHINE For All Users Attaching the Supports Installing the Handset Installing the Drum Unit Assembly Load Paper in the Paper Tray Installing the Power Cord and Phone Line Installing the Driver & Software For USB Interface Cable Users (For Windows 98/98SE/Me/2000 Professional/XP) ii

4 MFC-8220 SERVICE MANUAL For Parallel Interface Cable Users (For Windows 95/98/98SE/Me/2000 Professional/XP) For Windows NT Workstation Version 4.0 Users For Optional NC-9100h Network Interface Users (For Windows 95/98/98SE/Me/NT/2000 Professional/XP) For USB Interface Cable Users (For Mac OS 8.6 to 9.2 Users) For USB Interface Cable Users (For Mac OS X 10.1/ or greater Users) For Optional NC-9100h Network Interface Users (For Mac OS 8.6 to 9.2 Users) For Optional NC-9100h Network Interface Users (For Mac OS X 10.1/ or greater Users) CHAPTER 3 THEORY OF OPERATION ELECTRONICS General Block Diagram Main PCB Block Diagram Main PCB CPU USB IEEE ROM Flash ROM SDRAM Optional RAM EEPROM Reset circuit Engine I/O Panel I/O Video I/O Scanner control Power supply Engine PCB Power Supply Low-voltage power supply High-voltage power supply MECHANICS Overview of Printing Mechanism Scanner Mechanism Document feeding and ejecting mechanism Scanner Paper Transfer Paper supply Paper registration Paper eject Sensors Document cover sensors Toner sensors Cassette sensor / Paper empty sensor Paper eject sensor Document front sensor / Document rear sensor Regist sensor iii

5 TABLE OF CONTENTS 2.5 Drum Unit Photosensitive drum Primary charger Transfer roller Cleaner Toner Cartridge Print Process Charging Exposure stage Developing Transfer Fixing stage CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY SAFETY PRECAUTIONS DISASSEMBLY FLOW DISASSEMBLY PROCEDURE Power Cord Drum Unit Paper Tray Rear Cover C Access Cover / Battery ASSY Control Panel ASSY Document Scanner Outer Chute Rear Cover L/R Side Cover L/R Top Cover ASSY Front Cover ASSY NCU Fixing Unit Laser Unit Main PCB ASSY Base Plate / LV Insulation Sheet Engine PCB ASSY High-voltage PS PCB ASSY Low-voltage PS PCB ASSY Paper Feeder Frame L / Drive Unit Thermistor ASSY Fan Motor 60 Unit LV / Fan Motor 60 Unit Frame R PACKING GUIDELINES FOR LEAD FREE SOLDER SCREW TORQUE LIST LUBRICATION HARNESS ROUTING iv

6 MFC-8220 SERVICE MANUAL CHAPTER 5 PERIODIC MAINTENANCE CONSUMABLE PARTS Drum Unit Toner Cartridge PERIODICAL REPLACEMENT PARTS Fixing Unit Paper Feeding Kit PERIODICAL CLEANING Cleaning the Machine Exterior Cleaning the Scanner Cleaning the Drum Unit Cleaning the Scanner Window Cleaning the Electrical Terminals MTBF / MTTR CHAPTER 6 TROUBLESHOOTING INTRODUCTION Initial Check Warnings for Maintenance Work Identify the Problem ERROR MESSAGE Error Message on the LCD Error Codes Shown in the MACHINE ERROR X X message PAPER PROBLEMS Paper Loading Problems Original Jams Original is jammed in the ADF (Automatic document feeder) Paper Jams Clearing jammed paper Causes & countermeasures Paper Feeding Problems SOFTWARE SETTING PROBLEMS MALFUNCTIONS TROUBLESHOOTING OF THE CONTROL PANEL TROUBLESHOOTING OF FAX FUNCTIONS IMAGE DEFECTS Image Defect Examples Diameter of Rollers Troubleshooting Image Defect Location of Grounding Contacts Drum unit Machine body & Paper tray INCORRECT PRINTOUT v

7 TABLE OF CONTENTS 10. NETWORK PROBLEM Installation Problem Intermittent Problem TCP/IP Troubleshooting UNIX Troubleshooting Windows NT/LAN Server (TCP/IP) Troubleshooting Windows 95/98/Me Peer to Peer Print (LPR) Troubleshooting Windows 95/98/Me Peer to Peer (HP JetAdmin Compatible Method) Troubleshooting Windows 95/98/Me/NT 4.0/2000 Peer to Peer Print (NetBIOS) Troubleshooting Brother Internet Print (TCP/IP) Troubleshooting Windows 95/98/Me/2000/XP IPP Troubleshooting Novell Netware Troubleshooting AppleTalk Troubleshooting DLC/LLC Troubleshooting Web Browser Troubleshooting (TCP/IP) Internet Fax Troubleshooting CHAPTER 7 MAINTENANCE MODE ENTRY INTO THE MAINTENANCE MODE LIST OF MAINTENANCE MODE FUNCTIONS DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS EEPROM Parameter Initialization (Maintenance mode 01/91) Printout of Scanning Compensation Data (Maintenance mode 05) ADF Performance Test (Maintenance mode 08) Test Pattern 1 (Maintenance mode 09) Firmware Switch Setting and Printout Firmware switch setting (Maintenance mode 10) Printout of firmware switch data (Maintenance mode 11) Operation Check of LCD (Maintenance mode 12) Operational Check of Control Panel PCB (Maintenance mode 13) Receiver Volume Adjustment (Maintenance mode 16) Sensor Operational Check (Maintenance mode 32) Received Data Transfer Function (Maintenance mode 53) Fine Adjustment of Scan Start/End Positions (Maintenance mode 54) CIS Scanner Area Setting (Maintenance mode 55) Paper Feed and Paper Eject Test (Maintenance mode 67) EEPROM Customizing (Maintenance mode 74) Display of the Equipment s Log Information (Maintenance mode 80) Machine Error Code Indication (Maintenance mode 82) Output of Transmission Log to the Telephone Line (Maintenance mode 87) Cancellation of the Memory Security Mode (Not applicable to the Japanese version).7-26 APPENDIX 1 EEPROM CUSTOMIZING CODES...A-1 vi

8 MFC-8220 SERVICE MANUAL APPENDIX 2 INSTALLING THE UPDATE DATA...A-2 1. INSTALLING THE UPDATE DATA TO THE MACHINE... A Connecting the Machine to Your PC...A Setting up the Machine and Your PC...A Installing the Update Data onto the Flash ROM of the Machine...A-3 2. SETTING ID CODES TO MACHINES... A Connecting the Machine to Your PC...A Setting Up the Machine and Your PC...A Running the Setup Utility...A-5 APPENDIX 3 FIRMWARE SWITCHS (WSW)...A-6 APPENDIX 4 CIRCUIT DIAGRAMS 4.1 Main PCB Circuit Diagram (1/6)...A Main PCB Circuit Diagram (2/6)...A Main PCB Circuit Diagram (3/6)...A Main PCB Circuit Diagram (4/6)...A Main PCB Circuit Diagram (5/6)...A Main PCB Circuit Diagram (6/6)...A Engine PCB Circuit Diagram (1/2)...A Engine PCB Circuit Diagram (2/2)...A NCU PCB Circuit Diagram (Europe)...A NCU PCB Circuit Diagram (U.S.A.)...A Control Panel PCB Circuit Diagram...A Low-voltage Power Supply PCB Circuit Diagram...A High-voltage Power Supply PCB Circuit Diagram (100V)...A High-voltage Power Supply PCB Circuit Diagram (200V)...A Back Light PCB Circuit Diagram...A-62 ii

9 FACSIMILE EQUIPMENT PARTS REFERENCE LIST MODEL: MFC8220 (For Germany / United Kingdom / France / Belgium / Netherlands / Switzerland / Ireland / Denmark / Austria / Spain / Italy / Portugal / China / Asia / Oceania (Australia & New Zealand) / Pan-Nordic (Norway, Finland & Sweden) / Euro Generic)

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