Assessments - 3, GPA: 3.7
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September, 1999 SM-PRN001 © Copyright Brother 1999 All rights reserved. No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher. Specifications are subject to change without notice. Trademarks: The brother logo is a registered trademark of Brother Industries, Ltd. Apple, the Apple Logo, and Macintosh are trademarks, registered in the United States and other countries, and True Type is a trademark of Apple computer, Inc. Epson is a registered trademark and FX-80 and FX-850 are trademarks of Seiko Epson Corporation. Hewlett Packard is a registered trademark and HP Laser Jet is a trademark of Hewlett Packard Company. IBM, IBM PC and Proprinter are registered trademarks of International Business Machines Corporation. Microsoft and MS-DOS are registered trademarks of Microsoft Corporation. Windows is a registered trademark of Microsoft Corporation in the U.S. and other countries. PREFACE PREFACE This service manual contains basic information required for after-sales service of the laser printer (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-1030/1240/1250/1270N printers. This manual consists of the following chapters: CHAPTER 1: GENERAL Features, specifications, etc. CHAPTER 2: INSTALLATION AND BASIC OPERATION Installation conditions, Installation procedures, basic operation of the printer etc. CHAPTER 3: THEORY OF OPERATION Basic operation of the mechanical system, the electrical system and the electrical circuits and their timing information. CHAPTER 4: DISASSEMBLY AND RE-ASSEMBLY Procedures for disassembling and re-assembling the mechanical system. CHAPTER 5: MAINTENANCE Periodical replacements parts, consumable parts, etc. CHAPTER 6: TROUBLESHOOTING Reference values and adjustments, troubleshooting image defects, troubleshooting malfunctions, etc. APPENDICES : Serial No. descriptions, Drum life & page counter, Diameter / circumference of rollers, Connection diagrams, PCB circuit diagrams, etc. Information in this manual is subject to change due to improvement or redesign of the product. All relevant information in such cases will be supplied in service information bulletins (Technical Information). A thorough understanding of this printer, based on information in this service manual and service information bulletins, is required for maintaining its print quality performance and for improving the practical ability to find the cause of problems. i TABLE OF CONTENTS TABLE OF CONTENTS REGULATION ............................................................................................. vii SAFETY INFORMATION ............................................................................. ix CHAPTER 1 GENERAL...........................................................................1-1 1. FEATURES..............................................................................................................1-1 2. OVERVIEW ................................ ................................ ................................ .............1-4 3. SPECIFICATIONS...................................................................................................1-5 3.1 Printing..............................................................................................................................1-5 3.2 Functions ..........................................................................................................................1-6 3.3 Electrical and Mechanical .................................................................................................1-7 3.4 Network (for HL-1270N only) ............................................................................................1-8 3.5 Paper ................................................................................................................................1-8 3.5.1 Feedable paper................................................................................................................... 1-8 3.5.2 Paper cassette capacity.................................................................................................... 1-10 3.5.3 Print delivery ..................................................................................................................... 1-10 3.6 Printing Area ...................................................................................................................1-11 3.6.1 Effective printing area ....................................................................................................... 1-11 3.6.2 Print guaranteed area ....................................................................................................... 1-11 CHAPTER 2 INSTALLATION AND BASIC OPERATION.......................2-1 1. CONDITIONS REQUIRED FOR INSTALLATION........................................
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