Brother HL-5240 Service Manual
Laser printer
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Also See for HL-5240:
- Service manual (337 pages) ,
- User manual (138 pages) ,
- Quick setup manual (23 pages)
Related Manuals for Brother HL-5240
Summary of Contents for Brother HL-5240
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Page 1: Service Manual
Brother Laser Printer SERVICE MANUAL MODEL: HL-5240/5250DN/5270DN/5280DW Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. September 2005 SM-PRN057 Confidential... - Page 2 Ltd., covering the latest product descriptions and specifications. The contents of this manual and the specifications of this product are subject to change without notice. Brother reserves the right to make changes without notice in the specifications and materials contained herein...
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Page 3: Troubleshooting
(hereinafter referred to as "this machine" or "the printer"). This information is vital to the service technician to maintain the high printing quality and performance of the printer. This service manual covers the HL-5240/5250DN/5270DN/5280DW printers. This manual consists of the following chapters:... - Page 4 TABLE OF CONTENTS REGULATION .................... viii SAFETY INFORMATION ................x CHAPTER 1 GENERAL................1-1 FEATURES......................1-1 PARTS NAMES AND FUNCTIONS ................ 1-3 Overview........................... 1-3 Control Panel........................1-5 SPECIFICATIONS ....................1-7 Printing ..........................1-7 Functions .......................... 1-8 Electronics and Mechanics..................... 1-11 Service Information......................
- Page 5 HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL 2.3.9 Reset circuit ........................2-5 2.3.10 Panel I/O ..........................2-5 2.3.11 Video I/O ..........................2-5 2.3.12 Power supply........................2-5 2.3.13 Wireless LAN ........................2-5 Power Supply........................2-6 2.4.1 Low-voltage power supply....................2-6 2.4.2 High-voltage power supply ....................2-6 MECHANICS ......................2-7 Overview of Printing Mechanism ..................2-7 Overview of Gear......................
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Page 6: Chapter 4 Troubleshooting
PAPER PROBLEMS ..................... 4-15 Paper Loading Problems ....................4-15 Paper Jams ........................4-16 3.2.1 Paper jams and how to clear them for HL-5240/5250DN..........4-16 3.2.2 Paper jams and how to clear them for HL-5270DN/5280DW ..........4-18 3.2.3 Causes & countermeasures....................4-26 Paper Feeding Problems....................4-27 SOFTWARE SETTING PROBLEMS .............. - Page 7 7.24 New Toner Actuator......................5-41 7.25 Gear 17/20........................5-42 7.26 Side Cover R ........................5-44 7.27-1 Top Cover Printed ASSY (For HL-5240/5250DN) ............5-45 7.27-2 Panel PCB ASSY......................5-45 7.27-3 SW Key A/B ........................5-46 7.27-4 Inner Chute/Pinch Roller Holder ................... 5-47...
- Page 8 7.28-1 Top Cover 2 Printed ASSY (For HL-5270DN/5280DW) ..........5-48 7.28-2 Inner Chute/Pinch Roller Holder ................... 5-49 7.28-3 Panel PCB ASSY......................5-50 7.28-4 SW Key A/B/C/ Set Key Printed ASSY ................. 5-51 7.28-5 LCD Holder ASSY ......................5-53 7.29 Filter..........................5-55 7.30 Laser Unit ........................
- Page 9 HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT....6-1 IF YOU REPLACE THE MAIN PCB ................ 6-1 IF YOU REPLACE THE PERIODICAL MAINTENANCE PARTS ......6-10 CHAPTER 7 SERVICE SUPPORT SOFTWARE ........7-1 CONTROL PANEL....................7-1 Users Mode ........................