Table of Contents
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Chapters
Table of Contents
Troubleshooting
Related Manuals for Brother Mfc- 8380dn
Summarization of Contents
CHAPTER 1 SPECIFICATIONS
1. COMPONENTS
Details the major components of the equipment, including CCD and CIS models.
2. SPECIFICATIONS LIST
Provides a detailed breakdown of product specifications across different models.
CHAPTER 2 THEORY OF OPERATION
1. OVERVIEW
Provides a general overview of the machine's system architecture and major units.
2. ELECTRONICS
Details the general block diagram of the machine's electronic components and PCBs.
3. MECHANICS
Explains the mechanical structure, including printer parts, ADF, and scanner mechanisms.
CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING
1. INTRODUCTION
Provides precautions and an overview of troubleshooting procedures for service personnel.
2. DISTINGUISH ERROR CAUSE
Details error messages displayed on the LCD and their corresponding types of errors.
3. ERROR CODES
Lists machine error codes, their problems, and corresponding references for troubleshooting.
4. PAPER FEEDING PROBLEMS
Troubleshooting guide for common paper feeding issues like no feeding, double feeding, and paper jams.
5. TROUBLESHOOTING FOR PRINT IMAGE DEFECT FROM PC/USB/FAX RECEPTION
Provides examples of print image defects and their troubleshooting steps.
CHAPTER 4 PERIODICAL MAINTENANCE
1. PERIODICAL MAINTENANCE PARTS
Lists parts that require periodic replacement to maintain product quality and their approximate life.
1.2 Procedures to Replace Periodical Maintenance Parts
Details the step-by-step procedures for replacing major maintenance parts like the fuser unit and laser unit.
CHAPTER 5 DISASSEMBLY/REASSEMBLY
1. SAFETY PRECAUTIONS
Important warnings and precautions to follow before performing maintenance work to avoid hazards.
4. SCREW TORQUE LIST
Provides a list of screws, their types, quantities, and specified tightening torques.
5. LUBRICATION
Details the types of lubricating oil and their application points on the machine components.
8. DISASSEMBLY FLOW CHART
Visual flow charts illustrating the disassembly and reassembly order for CCD and CIS models.
9. DISASSEMBLY PROCEDURE
Step-by-step instructions for disassembling major units and components of the machine.
CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT
1. IF YOU REPLACE THE MAIN PCB
Details the steps required after replacing the main PCB, including firmware rewriting and driver installation.
2. IF YOU REPLACE THE WIRELESS LAN PCB
Procedure for backing up and restoring wireless LAN PCB information after replacement.
3. IF YOU REPLACE THE DOCUMENT SCANNER UNIT
Covers adjustments like white level data acquisition and scanner area setting after unit replacement.
CHAPTER 7 SERVICE MODE
1. ENTRY INTO THE MAINTENANCE MODE
Instructions on how to access the machine's maintenance mode using the control panel.
2. LIST OF MAINTENANCE-MODE FUNCTIONS
Provides a comprehensive list of available maintenance functions with corresponding page references.
4. DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS
Explains specific maintenance functions, such as EEPROM initialization and scanner area setting.
4.1 EEPROM Parameter Initialization (Function code 01/91)
Details the procedure for initializing EEPROM parameters and firmware switches.
4.16 Acquisition of White Level Data and CCD Scanner Area Setting (Function code 55)
Procedure for acquiring white level data and setting the CCD scanner area.
4.18 EEPROM Customizing (Function code 74)
Allows customization of EEPROM settings like language and function settings based on country.
4.20 Operational Check of Fans (Function code 78)
Details how to check if the machine's fans are operating correctly.
4.21 Display of the Machine’s Log Information (Function code 80)
Explains how to display the machine's log information, including error codes and part replacement counts.
CHAPTER 8 CIRCUIT DIAGRAMS, WIRING DIAGRAM
1. CIRCUIT DIAGRAMS
Provides circuit diagrams for key PCBs like High-voltage power supply, LVPS, and NCU.
2. WIRING DIAGRAM
Illustrates the wiring connections between various PCBs to aid in understanding the system.
APPENDIX 1 WORKER SWITCH (WSW)
FIRMWARE SWITCHES (WSW)
Describes functions and settings for worker switches, categorized for customization and environmental matching.
APPENDIX 2 DELETION OF USER SETTING INFORMATION, etc.
DELETION OF USER SETTING INFORMATION, etc.
Provides a procedure to delete user settings like network, telephone, and memory data in a single operation.
APPENDIX 3 SERIAL NUMBERING SYSTEM
SERIAL NUMBERING SYSTEM
Explains the meaning of serial numbers, property codes, and the location of labels on the machine.
APPENDIX 4 SCREW CATALOGUE
SCREW CATALOGUE
Lists all screws used in the machine by actual size for identification and replacement.
APPENDIX 5 REFERENCES
REFERENCES
Provides links to other sections within the manual for detailed information on error codes, specifications, and maintenance parts.
APPENDIX 6 GLOSSARY
GLOSSARY
Defines manual-specific acronyms and technical terms used throughout the manuals.
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