CHAPTER 3 THEORY OF OPERATION
3-22
Laser
Main PCB
Engine
PCB
Polygon Motor
Laser Unit
Cover Sensor (A)
Main Motor
Solenoid
Fan Motor
Toner Sensor PCB (light emission)
Toner Sensor PCB (light reception)
Thermistor (for Heat Roller)
Panel PCB
Low-Voltage
Power Supply
PCB
Fixing Unit
Halogen
Heater
Lamp
Front Registration
Sensor
Rear Registration
Sensor
Upper Paper
Cassette Sensor
(HL-1250/1270N)
Lower Paper
Cassette
Registration Sensor
(HL-1250/1270N)
High-
Voltage
Power
Supply
PCB
Drum Unit
Primary Charger (Corona Wire)
Primary Charger (Grid)
Supply Roller
Transfer Roller
Development Roller
Network
Board
(HL-1270N)
Cover Sensor (B)
Fig. 3-28
Summary of Contents for HL-1030
Page 51: ...CHAPTER 3 THEORY OF OPERATION 3 9 Fig 3 8 ...
Page 53: ...CHAPTER 3 THEORY OF OPERATION 3 11 Two 32 Mbits ROMs x 16 bit are fitted Fig 3 11 HL 1270N ...
Page 122: ...CHAPTER 5 PERIODIC MAINTENANCE 5 8 ...
Page 198: ...CODE UK4352000 B512040CIR 1 2 A 20 NAME Appendix 11 Main PCB Circuit Diagram HL 1030 1240 1 2 ...
Page 199: ...Appendix 12 Main PCB Circuit Diagram HL 1030 1240 2 2 CODE UK4352000 B512040CIR 2 2 A 21 NAME ...
Page 202: ...CODE UK4361000 B512049CIR A 24 NAME Appendix 15 Main PCB Circuit Diagram HL 1250 1270N 3 5 ...
Page 205: ...Appendix 18A Engine PCB Circuit Diagram OLD CODE UK4444000 B512059CIR A 27 NAME ...
Page 206: ...Appendix 18B Engine PCB Circuit Diagram NEW CODE UK4444000 B512059CIR A 28 NAME ...
Page 207: ...Appendix 19 Network Board Circuit Diagram HL 1270N CODE LJ8107000 B512058CIR A 29 NAME ...
Page 218: ...INDEX vi ...