Brother HL 1850, 1870N LASER PRINTER Service Manual
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Description
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This service manual is essential for after-sales service of the Brother Laser Printer HL 1850/HL 1870N (HL1850/HL1870N). It contains vital information necessary for maintaining the high printing quality and performance of the printer. This manual covers the HL-1850/HL-1870N printers and 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.
