2-86
Confidential
■
Black horizontal stripes
Fig. 2-13
User Check
• Clean the inside of the machine and the corona wire in the drum unit.
• When the horizontal stripes at 94.2 mm are intervals, replace the
drum unit with a new one.
• The paper tray ground terminal provided in the machine body may
be dirty. Clean the contact with a dry cloth.
• Toner attached on the develop roller (horizontal stripes at 32.5 mm)
This problem will disappear by printing approximate 10 pages.
If the same problem occurs, replace the toner cartridge.
Step
Cause
Remedy
1
Dirt on the electrodes of the drum
unit and the machine body
Clean the electrodes of the drum unit and
machine body. (Refer to
)
2
Bend of tray ground spring
(1) Correct bending of the tray ground spring.
(2) Replace the paper tray.
3
Scratch and Dirt on the heat roller
(horizontal stripes at 53.4 mm)
Replace the fuser unit.
4
High voltage power supply PCB
ASSY failure
Replace the high voltage power supply
PCB ASSY.
5
Main PCB failure
Replace the main PCB ASSY.
CAUTION :
• Image defects which appear periodically may be caused by failure of a roller. Specify
the cause referring to the diameter of the rollers or pitch which appears in the image as
shown in the table below
No.
Parts name
Diameter
The pitch which
appears in the image
1
Develop roller
Ø
16 mm
32.5 mm
2
Exposure drum
Ø
30 mm
94.2 mm
3
Heat roller in the fuser unit
Ø
17 mm
53.4 mm
4
Pressure roller ASSY in the fuser unit
Ø
25 mm
78.5 mm
Bottom surface of Paper tray
Paper tray ground terminal
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 ...