Manuals
/
Brands
/
Computer Equipment
/
Fax Machine
/
Brother
/
Computer Equipment
/
Fax Machine
Brother
DCP-8080DN/8085DN, MFC-8480DN/8880DN/8890DW
1. CIRCUIT DIAGRAMS
1
429
519
519
Download
519 pages, 12.23 Mb
1. CIRCUIT DIAGRAMS
High-voltage
Power Supply PCB Circuit Diagram
Fig.
8-1
8-1
Confidential
Contents
Laser FAX/MFC
DCP-8080DN/8085DN MFC-8480DN/8880DN/8890DW
Page
PREFACE
APPENDIX 1: FIRMWARE SWITCHES (WSW)
APPENDIX 2: DELETION OF USER SETTING INFORMATION, etc
APPENDIX 3: SERIAL NUMBERING SYSTEM
APPENDIX 4: SCREW CATALOGUE
APPENDIX 5: REFERENCES
REGULATION
Page
Page
Page
SAFETY INFORMATION
Page
Page
SPECIFICATIONS
CHAPTER
SPECIFICATIONS
1. COMPONENTS
2. SPECIFICATIONS LIST
Functions
Page
2.3Electronics and Mechanics
2.4Network Connectivity
Page
2.5Service Information
Paper
Paper handling
2.6.2 Media specifications
2.6.3 Type and size of paper
Page
2.7Printable Area
Page
Page
Page
Page
Page
2.8Print Speeds with Various Settings
2.9 Telephone
2.10 Fax
2.11 List/Report
2.12 Copy
2.13 Scanner
2.14 USB Host
THEORY OF OPERATION
CHAPTER 2 THEORY OF OPERATION
1. MECHANICS
2. ELECTRONICS
3. MECHANICS
Page
3.2Scanner Mechanism
3.2.1 Scanner unit
Page
3.2.2 ADF unit
Page
Page
Page
Page
3.3Paper Feeding
3.3.1 Plate-upFunction of the Paper Tray
3.3.2 Paper supply
3.3.3 Paper registration
3.3.4 Paper eject
3.3.5 Duplex printing
3.3.6 Paper feeding from the MP tray
3.3.7 Paper feeding from the LT tray (Tray2)
3.4Toner Cartridge
3.4.1 Methods for Detecting Toner Life
3.4.2 Cartridge life
3.4.3New toner detection
Page
Page
3.5Print
3.5.1 Basic Principle
3.5.2 Print Process
Page
Page
Page
Page
3.6Sensors position
Page
ERROR INDICATION AND TROUBLESHOOTING
CHAPTER 3 PERIODIC MAINTENANCE
1. INTRODUCTION
1.2Part names
1.3Initial Check
Page
2. DISTINGUISH ERROR CAUSE
Page
Page
Page
3. ERROR CODES
Page
Page
3.2Error Code Cause and Remedy
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
4. PAPER FEEDING PROBLEMS
4.3Paper Jam
Page
4.4Dirt on Paper
4.5Wrinkles or creases
4.6Waves in the paper / folds in the paper at the eject roller
4.7Curl in the paper
4.8Prints only single side of the paper when duplex-printing
5. IMAGE DEFECT TROUBLESHOOTING
5.3Troubleshooting Image Defect
Page
■Poor fixing
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
6. SOFTWARE SETTING PROBLEMS
7. NETWORK PROBLEMS
8.TROUBLESHOOTING OF THE COMMUNICATIONS ERRORS
Page
Page
Page
Page
9.TROUBLESHOOTING OF THE CONTROL PANEL
Page
10. TROUBLESHOOTING OF FAX FUNCTIONS
Page
Page
Page
11. DOCUMENT FEEDING PROBLEMS
11.2 Double Feeding
11.3Paper Jam
Page
11.4 Wrinkles
12.SCANNING IMAGE DEFECT TROUBLESHOOTING
Page
Page
13. OTHERS PROBLEMS
Page
PERIODIC MAINTENANCE
CHAPTER 4 PERIODIC MAINTENANCE
1. PERIODIC MAINTENANCE PARTS
1.1Periodical Replacement Parts
1.2Procedures to Replace Periodical Replacement Parts
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
CAUTION
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
DISASSEMBLY/REASSEMBLY
CHAPTER 5 PERIODIC MAINTENANCE
Page
Page
Page
1. SAFETY PRECAUTIONS
2. TRANSFERRING RECEIVED FAX DATA
Page
3. PACKING
4. SCREW TORQUE LIST
Page
Page
5. LUBRICATION
Page
6. GEAR LAYOUT DRAWING
7. HARNESS ROUTING
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
DISASSEMBLY FLOW CHART
9. DISASSEMBLY PROCEDURE
9.1Paper Tray
Page
Page
9.2Back Cover
Page
9.3Rear Chute ASSY
Page
9.4Fuser Unit
Page
Page
Page
9.5Tray MP ASSY
9.6MP Tray Cover ASSY/Process Cover ASSY/Emblem cover
Page
Page
9.7Access Cover/Side Cover L
9.8ADF Unit
9.9Hinge Arm R
9.10Hinge Base R
9.11Hinge ASSY L
9.12ADF Cover ASSY
9.13ADF Side Cover F
9.14ADF Side Cover R
9.15ADF Chute ASSY
Page
9.17Exit Chute Cover ASSY
9.18Earth Spring
9.19PF Roller Holder ASSY
9.20LF Roller 1 ASSY
9.21SB Roller ASSY (For the models with the Reading DX only)
Page
9.22ADF Motor
9.23S/B Solenoid ASSY (For the models with the DX only)
9.24PF Solenoid ASSY (For the models with the DX only)
9.25ADF Relay PCB
9.26Paper Feed Chute ASSY
9.27Actuator Front 1/Photo Interrupter (For the models with the DX only)
9.28Actuator Front 2/Photo Interrupter (For the models with the DX only)
Page
9.30Presser Roller/LF Spring
9.31LF Roller 2 ASSY
9.32Exit Roller ASSY
9.33LF Roller 3 ASSY
9.34LF Roller 4 ASSY
Page
9.36Document Hold/Document Hold Spring
9.37Upper Main Chute ASSY/Lower Main Chute ASSY
Page
9.38Actuator R/Photo Interrupter
9.39Flap B
9.40Actuator SB/Photo Interrupter (For the models with the DX only)
9.41Document Ejection Tray
9.42Document Cover Sensor
9.43Eject Roller B4
9.44Presser Roller
9.45Panel Cover ASSY
9.46Scanner Unit ASSY
9.47 Top Cover ASSY
9.48Lock Lever B/ Lock Lever ASSY
9.49CCD Module
Page
9.50FFC Cable ASSY
9.51Scanner Motor FB
9.52Pulley ASSY
9.53Photo Interrupter
9.54Panel Unit
9.55Panel PCB ASSY
Page
9.56Printed Rubber Key
9.57LCD Cover/Backlight Module/LCD
9.58NCU PCB ASSY (For the models with the NCU only)
Page
9.59Speaker ASSY
9.60Driver PCB
9.61USB HOST PCB ASSY
Page
9.62Side Cover R
9.63Joint Cover ASSY
DANGER
GEFAHR
WARNUNG
Page
9.64Main PCB
Page
9.65Gear Plate Calking ASSY/Develop Joint/Main Motor ASSY
Page
9.66Main Shield Plate ASSY
Page
Page
9.67Relay Rear PCB ASSY/Connector
Page
9.68Relay Front PCB ASSY
9.69Drive Release Link
9.70MP Solenoid ASSY
9.71T1 Solenoid ASSY
9.72Toner Sensor PCB
9.73Register Solenoid ASSY
9.74Ejector Solenoid ASSY
9.75Interlock SW ASSY
9.76New Toner Actuator
9.77Gear 17/20/23
Page
9.78Thermistor ASSY
9.79Filter
9.80Laser Unit
9.81PS PCB Unit
Page
Page
Page
9.82High-VoltagePS PCB ASSY
Page
9.83Wireless PCB (PCB T60H989 ASSY 04) (Wireless LAN model)
9.84Toner LED PCB Unit ASSY
9.85Fan Motor 60 Unit
9.86Fan Motor 60 Unit LV
9.87FRAME L ASSY
Page
Page
9.88MP Unit
Page
Page
Page
Page
Page
9.89Regist Actuator Rear/Regist Actuator Spring
Page
9.90Regist Actuator Front/Regist Actuator Spring
9.91Roller Holder ASSY
9.92PE Actuator/Edge Actuator/Edge Actuator Spring
Page
9.93PE EG Sensor ASSY
Page
10. DISASSEMBLY PROCEDURE (LT-5300)
Page
Page
10.2LT Front Cover ASSY
10.3LT Rear Cover
10.4LT Side Cover L
10.5LT Side Cover R
10.6LT PCB ASSY
10.7Connector:
10.8Connector:
10.9Gear 24 LT
10.10Collar
Page
Page
Page
10.11LT Solenoid ASSY
10.12Roller Holder ASSY
10.13Edge Actuator Spring
10.14PE Actuator , Edge Actuator
10.15LT Sensor PCB ASSY
Page
Page
CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS
REQUIRED AFTER PARTS REPLACEMENT
1. IF YOU REPLACE THE MAIN PCB
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
2. IF YOU REPLACE THE WIRELESS LAN PCB
3. IF YOU REPLACE THE WIRELESS LAN PCB
SERVICE MODE
CHAPTER 7 SERVICE MODE
Page
1. ENTRY INTO THE MAINTENANCE MODE
2. LIST OF MAINTENANCE-MODEFUNCTIONS
3. USER-ACCESSTO THE MAINTENANCE MODE
4.DETAILED DESCRIPTION OF MAINTENANCE-MODEFUNCTIONS
4.2Printout of Scanning Compensation Data (Function code 05)
Page
Page
4.3Placement of FB Unit in Position for Transportation (Function code 06)
4.4ADF Performance Test (Function code 08)
4.5Test Pattern 1 (Function code 09)
4.6Firmware Switch Setting and Printout
4.6.1Firmware switch setting (Function code 10)
Page
Page
4.6.2Printout of firmware switch data (Function code 11)
4.7Operation Check of LCD (Function code 12)
4.8Operational Check of Control Panel PCB (Function code 13)
4.9ROM Version Check (Function code 25)
4.10 Sensor Operational Check (Function code 32)
Page
4.11 PC Print Function (Function code 43)
Page
Page
4.12 Switching the USB Setting (Function code 45)
4.13 Pan-nordicSelect Country (Function code 52)
Page
Page
4.15 Fine Adjustment of Scan Start/End Positions (Function code 54)
Page
Page
4.17 Paper Feeding and Ejecting Test (Function code 67)
4.18EEPROM Customizing (Function code 74)
Page
4.19 Operational Check of Fans (Function code 78)
4.20 Display of the Machine’s Log Information (Function code 80)
Page
4.21 Error Code Indication (Function code 82)
4.22Output of Transmission Log to the Telephone Line (Function code 87)
4.24Maintenance Mode Finish (Function code 99)
5. OTHER SERVICE FUNCTIONS
Page
5.2Develop Roller / Developing Bias Voltage Counter Reset Function
5.3Drum condensation countermeasure mode
5.4Unlocking and Clearing the Password of the Function Lock / Setting Lock
5.5Clearing the Data of the Secure Print
CIRCUIT DIAGRAMS, WIRING DIAGRAM
CHAPTER 8 CIRCUIT DIAGRAMS, WIRING DIAGRAM
1. CIRCUIT DIAGRAMS
Page
Page
Page
2. WIRING DIAGRAM
FIRMWARE SWITCHES (WSW)
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
DELETION OF USER SETTING INFORMATION, etc
Page
SERIAL NUMBERING SYSTEM
Page
SCREW CATALOGUE
Taptite bind B
Taptite cup B
Taptite pan (washer)
Screw pan (S/P washer)
Taptite B
REFERENCES
Page
GLOSSARY
