2-46
Confidential
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Error code 7B
These errors do not usually occur in the normal use. The conceivable causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
Error, which cannot be specified, occurs.
Error code 7C
Error, which cannot be specified, occurs.
■
Error code 7D
Dirt on drum unit.
Print Unable 7B
Turn the power off and then back on again.
---
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
Cause
Remedy
1
Main PCB failure
Replace the main PCB ASSY.
Drum Error
Open the Front Cover and slide the blue tab across the Drum Unit
several times.
<User Check>
• Clean the corona wire of drum unit.
• Turn OFF the power switch, and turn it ON again after a while.
Step
Cause
Remedy
1
Dirt on the electrode of the drum
unit and on the machine
Clean the dirt on the contact points of the
both electrodes.
(Refer to Fig. 2-11, Fig. 2-12)
2
High voltage power supply PCB
failure
Replace the high voltage power supply
PCB ASSY.
3
Main PCB failure
Replace the main PCB ASSY.
Summary of Contents for DCP 7065DN
Page 21: ...CHAPTER 1 SPECIFICATIONS ...
Page 35: ...CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING ...
Page 44: ...2 7 Confidential ADF part Fig 2 5 Left Side Right Side Document feed path Face up ...
Page 142: ...CHAPTER 3 DISASSEMBLY REASSEMBLY ...
Page 157: ...3 13 Confidential 4 New toner sensor PCB ASSY New toner sensor PCB ASSY Main PCB ASSY Guide ...
Page 169: ...3 25 Confidential 21 Hook switch PCB Guide Main PCB ASSY Hook switch PCB Side cover L ...
Page 252: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 264: ...CHAPTER 5 SERVICE FUNCTIONS ...
Page 271: ...5 5 Confidential Black and white scanning Fig 5 1 ...
Page 311: ...Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 313: ...6 1 Confidential 1 CIRCUIT DIAGRAMS High Voltage Power Supply PCB Circuit Diagram MURATA ...
Page 314: ...6 2 Confidential High Voltage Power Supply PCB Circuit Diagram Panasonic ...
Page 315: ...6 3 Confidential Low Voltage Power Supply PCB Circuit Diagram 115V EDPS 62AF A Delta ...
Page 316: ...6 4 Confidential Low Voltage Power Supply PCB Circuit Diagram 115V MPW3058 MURATA ...
Page 317: ...6 5 Confidential Low Voltage Power Supply PCB Circuit Diagram 230V EDPS 62BF A Delta ...
Page 318: ...6 6 Confidential Low Voltage Power Supply PCB Circuit Diagram 230V MPW3059 MURATA ...
Page 319: ...6 7 Confidential NCU PCB Circuit Diagram U S A Canada ...
Page 320: ...6 8 Confidential NCU PCB Circuit Diagram Europe Oceania ...
Page 321: ...6 9 Confidential NCU PCB Circuit Diagram China Asia Gulf ...
Page 322: ...6 10 Confidential 2 WIRING DIAGRAM Wiring diagram ...
Page 323: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 324: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE CONTENTS 1 PERIODICAL REPLACEMENT PARTS 7 1 ...
Page 326: ...APPENDIX 1 SERIAL NUMBERING SYSTEM Confidential ...
Page 330: ...APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER Confidential ...
Page 334: ...App 3 4 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...
Page 336: ...APPENDIX 4 HOW TO MAKE PROTECTIVE MATERIAL OF DRUM UNIT Confidential ...