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2-1
Confidential
1. INTRODUCTION
Troubleshooting is the countermeasure procedures that the service personnel should follow
if an error or malfunction occurs with the machine. It is impossible to anticipate all of the
possible troubles which may occur in future and determine the troubleshooting procedures,
so this chapter covers some sample troubles. However, those samples will help the service
personnel pinpoint and repair other defective elements.
1.1
Precautions
Be sure to observe and follow all the precautions to prevent any secondary problems from
happening during troubleshooting.
(1) Always turn off the power and unplug the power cable before removing any covers or
PCBs, adjusting the machine and so on. If you need to take voltage measurements with
the power switched on, take the greatest of care not to receive an electric shock.
(2) When connecting or disconnecting cable connectors, make sure that you hold the
connector body and not the cables.
(3) Static electricity charged in your body may damage electronic parts.
Before handling the PCBs, touch a metal portion of the machine to discharge static
electricity charged in your body. When transporting PCBs, be sure to wrap them in
conductive sheets.
When replacing the PCBs, put on a grounding wrist band and perform the job on a static
mat. Also take care not to touch the conductor sections on the flat cables.
(4) Follow the warning by all means.
(5) Verify again that the repaired portion works properly.
The fuser unit becomes extremely hot during operation. Wait until it has cooled down
sufficiently before replacing consumable items. DO NOT remove or damage the
caution label located on or around the fuser.
WARNING
DO NOT
use flammable substances such as alcohol, benzine, thinner or any type of
spray to clean the inside or outside of the machine. Doing this may cause a fire or
electrical shock.
Содержание DCP 7065DN
Страница 21: ...CHAPTER 1 SPECIFICATIONS ...
Страница 35: ...CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 44: ...2 7 Confidential ADF part Fig 2 5 Left Side Right Side Document feed path Face up ...
Страница 142: ...CHAPTER 3 DISASSEMBLY REASSEMBLY ...
Страница 157: ...3 13 Confidential 4 New toner sensor PCB ASSY New toner sensor PCB ASSY Main PCB ASSY Guide ...
Страница 158: ...3 14 Confidential 5 T1 clutch ASSY REG clutch ASSY Main PCB ASSY REG clutch ASSY T1 clutch ASSY Guide Guide Guide ...
Страница 169: ...3 25 Confidential 21 Hook switch PCB Guide Main PCB ASSY Hook switch PCB Side cover L ...
Страница 183: ...3 39 Confidential 4 Remove the support flap 1 from the front cover ASSY Fig 3 20 Support flap 1 Front cover ASSY ...
Страница 194: ...3 50 Confidential 9 10 6 Gear Cover 1 Release the hook to remove the gear cover Fig 3 34 1a 1b Gear cover Hook ...
Страница 252: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 264: ...CHAPTER 5 SERVICE FUNCTIONS ...
Страница 271: ...5 5 Confidential Black and white scanning Fig 5 1 ...
Страница 311: ...Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Страница 313: ...6 1 Confidential 1 CIRCUIT DIAGRAMS High Voltage Power Supply PCB Circuit Diagram MURATA ...
Страница 314: ...6 2 Confidential High Voltage Power Supply PCB Circuit Diagram Panasonic ...
Страница 315: ...6 3 Confidential Low Voltage Power Supply PCB Circuit Diagram 115V EDPS 62AF A Delta ...
Страница 316: ...6 4 Confidential Low Voltage Power Supply PCB Circuit Diagram 115V MPW3058 MURATA ...
Страница 317: ...6 5 Confidential Low Voltage Power Supply PCB Circuit Diagram 230V EDPS 62BF A Delta ...
Страница 318: ...6 6 Confidential Low Voltage Power Supply PCB Circuit Diagram 230V MPW3059 MURATA ...
Страница 319: ...6 7 Confidential NCU PCB Circuit Diagram U S A Canada ...
Страница 320: ...6 8 Confidential NCU PCB Circuit Diagram Europe Oceania ...
Страница 321: ...6 9 Confidential NCU PCB Circuit Diagram China Asia Gulf ...
Страница 322: ...6 10 Confidential 2 WIRING DIAGRAM Wiring diagram ...
Страница 323: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Страница 324: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE CONTENTS 1 PERIODICAL REPLACEMENT PARTS 7 1 ...
Страница 325: ...7 1 Confidential 1 PERIODICAL REPLACEMENT PARTS There are no parts to be replaced periodically ...
Страница 326: ...APPENDIX 1 SERIAL NUMBERING SYSTEM Confidential ...
Страница 330: ...APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER Confidential ...
Страница 334: ...App 3 4 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...
Страница 336: ...APPENDIX 4 HOW TO MAKE PROTECTIVE MATERIAL OF DRUM UNIT Confidential ...