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CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY
4-29
(5) Disconnect the 11 (eleven) connectors for HL-1240 or 12 (twelve) connectors for HL-1250
from the engine PCB to remove the engine PCB ASSY.
Fig. 4-51
!
CAUTION:
·
Even if you want to remove only one of either the engine and high-voltage power supply
PCBs, ensure you remove all screws securing both PCBs and disconnect the central
connector while lifting both of them up. Failure to do may damage the PCBs.
·
When re-assembling the engine PCB, ensure it is aligned with the positioning boss first.
Be careful the main motor harness is not caught between the engine PCB and the frame.
·
When re-assembling the engine PCB or high-voltage power supply PCB, ensure the
central connector is connected correctly.
Main PCB connector
Toner sensor (light
emission) connector
Fan motor connector
Thermistor connector
Low-voltage power
supply connector
Polygon motor connector
Panel PCB
connector
Lower paper cassette
connector (HL-1250 only)
Main motor connector
Solenoid connector
Engine PCB ASSY
Low-voltage power
supply connector
(for HVPS)
Toner sensor (light
reception) connector
Содержание HL-1240
Страница 1: ......
Страница 45: ...CHAPTER 3 THEORY OF OPERATION 3 7 Fig 3 6 ...
Страница 47: ...CHAPTER 3 THEORY OF OPERATION 3 9 1 3 3 DRAM A 16M bit DRAM x 16 bits is used as the RAM Fig 3 9 HL 1240 ...
Страница 48: ...CHAPTER 3 THEORY OF OPERATION 3 10 Two 16M bit DRAMs x 16 bits are used as the RAM Fig 3 10 HL 1250 ...
Страница 102: ...CHAPTER 4 DISASSEMBLY AND RE ASSEMBLY 4 38 ...
Страница 110: ...CHAPTER 5 PERIODIC MAINTENANCE 5 8 ...
Страница 176: ...CODE UK4352000 B512040CIR 1 2 A 18 NAME Appendix 10 Main PCB Circuit Diagram HL 1240 1 2 ...
Страница 177: ...Appendix 11 Main PCB Circuit Diagram HL 1240 2 2 CODE UK4352000 B512040CIR 2 2 A 19 NAME ...
Страница 178: ...Appendix 12 Main PCB Circuit Diagram HL 1250 1 5 CODE UK4361000 B512049CIR 1 5 A 20 NAME ...
Страница 179: ...Appendix 13 Main PCB Circuit Diagram HL 1250 2 5 CODE UK4361000 B512049CIR 2 5 A 21 NAME ...
Страница 180: ...CODE UK4361000 B512049CIR A 22 NAME Appendix 14 Main PCB Circuit Diagram HL 1250 3 5 ...
Страница 181: ...CODE UK4361000 B512049CIR 4 5 A 23 NAME Appendix 15 Main PCB Circuit Diagram HL 1250 4 5 ...
Страница 182: ...CODE UK4361000 B512049CIR 5 5 A 24 NAME Appendix 16 Main PCB Circuit Diagram HL 1250 5 5 ...
Страница 183: ...Appendix 17 Engine PCB Circuit Diagram CODE UK4444000 B512059CIR A 25 NAME ...
Страница 192: ...INDEX vi ...
Страница 203: ...6 COVER MODEL HL 1240 HL 1250 84U Z01 Z02 060 8 7 15 1 12 12 12 9 11 11 8 6 2 5 10 16 13 17 4 3 3 2 12 14 ...
Страница 210: ... 15 14 ADJUSTING TOOL PRT 402 TOOL NO TOOL NAME REMARK PRT 402 TORX SCREW DRIVER MODEL HL 1240 HL 1250 84U Z01 Z02 ...
Страница 237: ...CHAPTER 1 ABOUT THIS PRINTER 1 19 1 Select manual feed mode in the printer driver Windows 95 98 and Windows 3 1 ...
Страница 321: ...A 12 HP LaserJet IIP HP LaserJet 6P HL 1250 only ...
Страница 323: ...A 14 HP LaserJet IIP 6P EPSON FX 850 IBM Proprinter XL EPSON FX 850 ...