Chapters
Table of Contents
Troubleshooting
Related Manuals for Brother 1250
Summarization of Contents
PREFACE
CHAPTER 1 GENERAL
Provides an overview, features, and specifications of the Brother Laser Printer models.
CHAPTER 2 INSTALLATION AND BASIC OPERATION
Guides users through printer setup, installation, paper handling, and control panel functions.
CHAPTER 3 THEORY OF OPERATION
Explains the electronic and mechanical components and the printing process.
CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY
Provides detailed procedures for safely disassembling and re-assembling printer parts.
CHAPTER 5 PERIODIC MAINTENANCE
Details procedures for routine maintenance, cleaning, and replacement of parts.
CHAPTER 6 TROUBLESHOOTING
Offers guidance for diagnosing and resolving printer issues and malfunctions.
APPENDICES
Contains supplementary information such as serial number descriptions, diagrams, and tools.
REGULATION
LASER SAFETY (110 - 120V MODEL ONLY)
Details laser safety standards and compliance for 110-120V models.
FDA REGULATIONS (110 - 120V MODEL ONLY)
Outlines FDA regulations for laser products marketed in the United States.
IEC 825 (220-240V MODEL ONLY)
Details laser safety standards and compliance for 220-240V models.
SAFETY INFORMATION
CAUTION FOR LASER PRODUCT (WARNHINWEIS FUR LASER DRUCKER)
Provides cautions regarding laser product handling during servicing.
ADDITIONAL INFORMATION
Offers additional safety advice when working with the optical system.
DEFINITIONS OF WARNINGS, CAUTIONS AND NOTES
Explains the conventions used for warnings, cautions, and notes in the manual.
CHAPTER 1 GENERAL
1. FEATURES
Lists key features like high resolution, fast speed, versatile paper handling, and user-friendly operation.
2. OVERVIEW
Provides a visual overview of the printer's front and rear views, identifying key components.
3. SPECIFICATIONS
Details technical specifications including print method, resolution, speed, and media compatibility.
3.4 Network (for HL-1270N only)
Covers network type, protocols, management, and software for the HL-1270N.
3.5 Paper
Specifies paper types, sizes, capacities, and handling precautions.
3.6 Printing Area
Defines the effective and guaranteed printing areas on the paper.
CHAPTER 2 INSTALLATION AND BASIC OPERATION
1. CONDITIONS REQUIRED FOR INSTALLATION
Outlines necessary power supply and environmental conditions for printer setup.
2. UNPACKING
Lists components included in the printer carton for unpacking.
3. INSTALL THE PRINTER
Guides through hardware setup and printer driver installation process.
4. PAPER HANDLING
Explains methods for loading paper into the printer.
5. CONTROL PANEL OPERATION
Describes printer status LEDs and control panel button functions.
6. NETWORK BOARD OPERATION (FOR HL-1270N ONLY)
Covers network setup and operations for the HL-1270N.
CHAPTER 3 THEORY OF OPERATION
1. ELECTRONICS
Explains the printer's electronic components and block diagrams.
2. MECHANICS
Explains the printer's mechanical parts and printing mechanism.
CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY
1. SAFETY PRECAUTIONS
Outlines essential safety guidelines before performing maintenance.
2. DISASSEMBLY FLOW
Presents a flowchart illustrating the disassembly sequence.
3. DISASSEMBLY PROCEDURE
Provides detailed steps for disassembling printer components.
4. PACKING
Instructions for packing the printer for shipment.
CHAPTER 5 PERIODIC MAINTENANCE
1. CONSUMABLE PARTS
Identifies parts subject to wear and tear that may need replacement.
2. PERIODICAL REPLACEMENT PARTS
Lists parts for periodic replacement based on service life.
3. PERIODICAL CLEANING
Provides procedures for cleaning printer components.
4. MTBF / MTTR
Provides Mean Time Between Failure and Repair data.
CHAPTER 6 TROUBLESHOOTING
1. INTRODUCTION
General introduction to troubleshooting procedures.
2. OPERATOR CALLS & SERVICE CALLS
Distinguishes user-recoverable from service-required errors.
3. ERROR MESSAGES
Lists error messages and their corresponding corrective actions.
4. PAPER PROBLEMS
Addresses issues related to paper handling and feeding.
5. SOFTWARE SETTING PROBLEMS
Addresses problems caused by incorrect software or driver settings.
6. MALFUNCTIONS
Lists common malfunctions with causes and remedies.
7. IMAGE DEFECTS
Lists and explains various print quality defects.
8. INCORRECT PRINTOUT
General troubleshooting for incorrect print output.
9. NETWORK PROBLEM (FOR HL-1270N ONLY)
Troubleshooting network connectivity issues.
10. INSPECTION MODE
Describes how to use inspection and test print modes.
APPENDICES
1. SERIAL NO. DESCRIPTIONS
Explains how to interpret serial numbers on printers and parts.
2. DIAMETER / CIRCUMFERENCE OF ROLLERS
Lists the dimensions of various rollers used in the printer.
3. PRINT SPEEDS WITH VARIOUS SETTINGS
Details print speeds based on media type and settings.
4. HOW TO KNOW DRUM UNIT LIFE & PAGE COUNTER
Guides on checking drum unit life and page counts.
5. HOW TO USE THE SELF-DIAGNOSTICS TOOLS
Explains the usage of built-in printer diagnostic tools.
6. NVRAM DEFAULT VALUE
Lists the default values for key NVRAM settings.
7. PAPER CASSETTE INFORMATION (FOR EUROPE ONLY)
Provides specific information regarding paper cassettes for European models.
8. Connection Diagram, HL-1030/1240
Wiring diagram illustrating connections for HL-1030/1240 models.
9. Connection Diagram, HL-1250
Wiring diagram illustrating connections for HL-1250 model.
10. Connection Diagram, HL-1270N
Wiring diagram illustrating connections for HL-1270N model.
11. Main PCB Circuit Diagram, HL-1030/1240 (1/2)
Circuit diagram for the Main PCB (part 1 of 2).
12. Main PCB Circuit Diagram, HL-1030/1240 (2/2)
Circuit diagram for the Main PCB (part 2 of 2).
13. Main PCB Circuit Diagram, HL-1250/1270N (1/5)
Circuit diagram for the Main PCB (part 1 of 5).
14. Main PCB Circuit Diagram, HL-1250/1270N (2/5)
Circuit diagram for the Main PCB (part 2 of 5).
15. Main PCB Circuit Diagram, HL-1250/1270N (3/5)
Circuit diagram for the Main PCB (part 3 of 5).
16. Main PCB Circuit Diagram, HL-1250/1270N (4/5)
Circuit diagram for the Main PCB (part 4 of 5).
17. Main PCB Circuit Diagram, HL-1250/1270N (5/5)
Circuit diagram for the Main PCB (part 5 of 5).
18A. Engine PCB Circuit Diagram (OLD)
Circuit diagram for the Engine PCB (Old version).
18B. Engine PCB Circuit Diagram (NEW)
Circuit diagram for the Engine PCB (New version).
19. Network Board Circuit Diagram, HL-1270N
Circuit diagram for the Network Board of HL-1270N.
20. Low-voltage Power Supply PCB Circuit Diagram (110 - 120V)
Circuit diagram for the Low-voltage Power Supply PCB (110-120V).
21. Low-voltage Power Supply PCB Circuit Diagram (220 - 240V)
Circuit diagram for the Low-voltage Power Supply PCB (220-240V).
22A. High-voltage Power Supply PCB Circuit Diagram (OLD)
Circuit diagram for the High-voltage Power Supply PCB (Old version).
22B. High-voltage Power Supply PCB Circuit Diagram (NEW)
Circuit diagram for the High-voltage Power Supply PCB (New version).
23. DIFFERENCES BETWEEN OLD & NEW VERSIONS OF HVPS & ENGINE PCB
Compares old and new versions of HVPS and Engine PCB parts.
Need help?
Do you have a question about the 1250 and is the answer not in the manual?
Questions and answers