MFC-8220
SERVICE MANUAL
i
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
APPENDIX 5: LOCATION TO ATTACH THE ADDITIONAL RIBS
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.
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General
Weight and Dimensions
