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Brother HL-7050 Service Manual
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Brother HL-7050 Service Manual

Brother HL-7050 Service Manual

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Download this manual See also: Service Manual, User Manual
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Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
Sep. 2002
SM-PRN031
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Summary of Contents for Brother HL-7050

  • Page 1 Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. Sep. 2002 SM-PRN031...

  • Page 2: Serial No. Descriptions

    (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-7050/7050N printers. This manual consists of the following chapters:...
  • Page 3 3.7.2 PCL6/BR-Script3 emulation ....................1-16 CHAPTER 2 INSTALLATION AND BASIC OPERATION ...... 2-1 CONDITIONS REQUIRED FOR INSTALLATION............2-1 Power Supply ........................2-1 Environment ........................2-1 System Requirements for Brother Printer Solution for Windows ® ........2-2 UNPACKING ......................2-3 INSTALL THE PRINTER ..................2-4 For All Users ........................

  • Page 4: Chapter 3 Theory Of Operation

    HL-2460 SERVICE MANUAL ® 3.4.3 Installing the driver for Macintosh users only ..............2-17 PRINTING METHODS...................2-19 Printing from the Paper Tray (Face down printing) ............2-19 Printing from the MP Tray ....................2-20 Printing on Envelopes (Face up printing) ............... 2-22 Printing on Label, Transparency, etc.
  • Page 5 TABLE OF CONTENTS 1.2.1 Outline ..........................3-2 1.2.2 Circuit..........................3-4 Engine PCB........................3-6 Power Supply ........................3-6 1.4.1 Low-voltage power supply ....................3-6 1.4.2 High-voltage power supply ....................3-8 MECHANICS ......................3-9 Overview of Printing Mechanism..................3-9 Paper Transfer ....................... 3-11 2.2.1 Paper supply ........................
  • Page 6 HL-24 0 SERVICE MANUAL Back Cover ASSY ......................4-26 3.10 Fixing Unit ........................4-28 3.11 Paper Eject........................4-37 3.12 Laser Unit........................4-40 3.13 Front Cover 1 / Front Cover 2 ..................4-41 3.14 MP Tray Unit ........................4-43 3.15 Fan Motor 80........................4-48 3.16 Main Motor ASSY......................
  • Page 7 TABLE OF CONTENTS Paper Loading Problems....................6-11 Paper Jams ........................6-12 3.2.1 Clearing jammed paper..................... 6-14 3.2.2 Countermeasures for paper jams ..................6-22 Paper Feeding Problems ....................6-23 SOFTWARE SETTING PROBLEMS ..............6-25 MALFUNCTIONS ....................6-28 IMAGE DEFECTS ....................6-34 Image Defect Examples ....................6-34 Troubleshooting Image Defect ..................
  • Page 8 MAIN PCB CIRCUIT DIAGRAM, HL-7050 (7/9) ............. A-8 MAIN PCB CIRCUIT DIAGRAM, HL-7050 (8/9) ............. A-9 10. MAIN PCB CIRCUIT DIAGRAM, HL-7050 (9/9) ........... A-10 11. ENGINE PCB CIRCUIT DIAGRAM, HL-7050 (1/3)..........A-11 12. ENGINE PCB CIRCUIT DIAGRAM, HL-7050 (2/3)..........A-12 13.

  • Page 9: Safety Precautions

    CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY SAFETY PRECAUTIONS To avoid creating secondary problems by mishandling, follow the warnings and precautions below during maintenance work. WARNING (1) Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the printer.

  • Page 10: Printing

    HL-7050 SERVICE MANUAL CHAPTER 5 PERIODIC MAINTENANCE To avoid creating secondary problems by mishandling, follow the warnings below during maintenance work. WARNING (1) Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the printer.

  • Page 11: Paper

    HL-7050 SERVICE MANUAL CHAPTER 6 TROUBLESHOOTING INTRODUCTION Initial Check (1). Operating environment Check if: • The source voltage stays within ±10% from the rated voltage shown on the rating plate. • The printer is installed on a solid, level surface.

  • Page 12: Paper

    CHAPTER 6 TROUBLESHOOTING (4). Others Condensation: When the printer is moved from a cold room into a warm room in cold weather, condensation may occur inside the printer, causing various problems as listed below: • Condensation on the optical surfaces such as the scanning mirror, lenses, the reflection mirror and the protection glass may cause the print image to be light.
  • Page 13 Brother HL-7050 HL-7050N service manual Brother HL-7050 HL-7050N service manual Brother HL-7050 HL-7050N service manual Brother HL-7050 HL-7050N service manual Brother HL-7050 HL-7050N service manual Brother HL-7050 HL-7050N service manual Brother HL-7050 HL-7050N service manual Brother HL-7050 HL-7050N service manual...

This manual is also suitable for:

Hl-7050n