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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

vii Confidential

CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT.................. 6-1

1. IF YOU REPLACE THE MAIN PCB ..........................................................................6-1

2. IF YOU REPLACE THE PERIODICAL MAINTENANCE PARTS ............................ 6-10

CHAPTER 7 SERVICE SUPPORT SOFTWARE.................................... 7-1

1. CONTROL PANEL ....................................................................................................7-1

1.1 Users Mode...................................................................................................................... 7-1

1.2 User Maintenance Mode.................................................................................................. 7-3

1.3 Service Mode ................................................................................................................... 7-5

2. HIDDEN FUNCTION MENUS .................................................................................7-15

2.1 Professional Menu ......................................................................................................... 7-16

2.2 Reset Parts Life Menu ................................................................................................... 7-23

2.3 Service Menu ................................................................................................................. 7-24

3. NVRAM DEFAULT VALUE......................................................................................7-29

APPENDIX

1. MAIN PCB CIRCUIT DIAGRAM ............................................................................... A-1

2. LOW-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM (100V, 200V).......... A-8

3. HIGH-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM ............................. A-10

4. POINT TO POINT CONNECTION DIAGRAM........................................................ A-11

5. GEAR LAYOUT DRAWING.................................................................................... A-12

6. READMARKS......................................................................................................... A-14

7. LOCATION OF THE FERRITE CORE ................................................................... A-15

8. HL-5240L................................................................................................................ A-18

Brother HL-5280DW Service Manual

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