
PREFACE
This service manual contains basic information required for after-sales service of the color laser
printer (here-in-after 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-2700CN color laser printer.
This manual consists of the following chapters:
CHAPTER I :
OUTLINE OF PRODUCT
Features, parts names, internal structure, and description of the control panel.
CHAPTER II :
SPECIFICATIONS
Specifications, etc.
CHAPTER III :
INSTALLATION
Installation conditions and installation procedures.
CHAPTER IV : STRUCTURE OF SYSTEM COMPONENTS
Basic operation of the mechanical system, the electrical system and the
electrical circuits and their timing information.
CHAPTER V :
CONTROL PANEL OPERATION
Operation and setting procedures on the control panel.
CHAPTER VI : PERIODIC MAINTENANCE
Description of periodic maintenance parts, and procedures for periodic
replacement and cleaning.
CHAPTER VII : DISASSEMBLY
Procedures for replacement of the mechanical system parts.
CHAPTER VIII : TROUBLESHOOTING
Description of error messages on the control panel, troubleshooting image
failure, etc.
APPENDICES : SERIAL NO. DESCRIPTIONS, ETC.
Information in this manual is subject to change due to improvement or re-design 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.
Summary of Contents for HL-2700CN Series
Page 16: ...viii 3 Rating Label 6 0A 11 0A For Europe For US ...
Page 18: ...CHAPTER I PRODUCT OUTLINE ...
Page 27: ...CHAPTER II SPECIFICATIONS ...
Page 39: ...III 1 CHAPTER III INSTALLATION ...
Page 53: ...CHAPTER IV STRUCTURE OF SYSTEM COMPONENTS ...
Page 84: ...IV 31 Layout of Clutches and Solenoids 1 2 3 4 5 6 7 8 9 10 Fig 4 30 ...
Page 90: ...IV 37 ...
Page 93: ...IV 40 c Interface Circuit Printer side Table 4 1 Interface Circuit ...
Page 102: ...IV 49 Main PCB circuit Diagram 1 7 IV 49 CODE B512168CIR 1 7 LJ9515001 NAME ...
Page 103: ...IV 50 Main PCB circuit Diagram 2 7 IV 50 CODE B512168CIR 2 7 LJ9515001 NAME ...
Page 104: ...IV 51 Main PCB circuit Diagram 3 7 IV 51 CODE B512168CIR 3 7 LJ9515001 NAME ...
Page 105: ...IV 52 Main PCB circuit Diagram 4 7 IV 52 CODE B512168CIR 4 7 LJ9515001 NAME ...
Page 106: ...IV 53 Main PCB circuit Diagram 5 7 IV 53 CODE B512168CIR 5 7 LJ9515001 NAME ...
Page 107: ...IV 54 Main PCB circuit Diagram 6 7 IV 54 CODE B512168CIR 6 7 LJ9515001 NAME ...
Page 108: ...IV 55 Main PCB circuit Diagram 7 7 IV 55 CODE B512168CIR 7 7 LJ9515001 NAME ...
Page 110: ...IV 57 Layout of Connector Pin Assignment Power Supply Unit Fig 4 40 ...
Page 118: ...IV 65 1 MCTL P W B I1CN IOD P W B DCN1 2 MCTL P W B I2CN IOD P W B DCN3 ...
Page 124: ...IV 71 30 Duplex Connector 31 Lower Feeder Connector 32 DCN2 IOD 33 DCN8 IOD LaserFan ...
Page 125: ...CHAPTER V CONTROL PANEL OPERATION ...
Page 171: ...CHAPTER VI PERIODIC MAINTENANCE ...
Page 197: ...CHAPTER VII DISASSEMBLY ...
Page 200: ...VII 3 Table 7 1 Table of Applicable Screws ...
Page 257: ...CHAPTER VIII TROUBLESHOOTING ...
Page 316: ...VIII 59 5 IMAGE FAILURE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...
Page 317: ...VIII 60 15 a 15 b 16 17 18 19 20 21 22 23 24 25 Fig 8 2 ...
Page 346: ...A 4 6 Transfer Unit X X X X X X 7 1 2 3 Location DATE MONTH SERIAL NO YEAR ...