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CONTENTS
CHAPTER I
FEATURES AND SPECIFICATIONS ..........................................I-1
1. FEATURES .........................................................................................................................I-1
2. SPECIFICATIONS ..............................................................................................................I-3
2.1
Printing....................................................................................................................................... I-3
2.2
Functions ................................................................................................................................... I-3
2.3
Electrical and Mechanical .......................................................................................................... I-4
2.4
Paper Specification .................................................................................................................... I-5
2.5
Print Delivery.............................................................................................................................. I-5
2.6
Paper ......................................................................................................................................... I-6
2.7
Effective Printing Area ............................................................................................................... I-7
3. SAFETY INFORMATION ....................................................................................................I-9
3.1
Laser Safety (110 - 120V Model only) ....................................................................................... I-9
3.2
FDA Regulations (110 - 120V Model only) ................................................................................ I-9
3.3
Caution for Laser Product ........................................................................................................ I-10
CHAPTER II THEORY OF OPERATION ........................................................ II-1
1. ELECTRONICS..................................................................................................................II-1
1.1
General Block Diagram............................................................................................................. II-1
1.2
Main PCB Block Diagram ......................................................................................................... II-4
1.3
Main PCB.................................................................................................................................. II-7
1.3.1
CPU Core .................................................................................................................... II-7
1.3.2
ASIC ............................................................................................................................ II-9
1.3.3
ROM .......................................................................................................................... II-15
1.3.4
DRAM ........................................................................................................................ II-16
1.3.5
Optional RAM ............................................................................................................ II-17
1.3.6
Optional Serial I/O ..................................................................................................... II-18
1.3.7
EEPROM ................................................................................................................... II-18
1.3.8
Reset Circuit .............................................................................................................. II-19
1.3.9
CDCC I/O .................................................................................................................. II-19
1.3.10
Engine I/O.................................................................................................................. II-21
1.3.11
Paper Feed Motor Drive Circuit ................................................................................. II-23
1.4
Panel Sensor PCB .................................................................................................................. II-24
1.5
Power Supply.......................................................................................................................... II-24
1.5.1
Low-voltage Power Supply ........................................................................................ II-24
1.5.2
High-voltage Power Supply, SR PCB........................................................................ II-25
2. MECHANICS....................................................................................................................II-26
2.1
Overview of Printing Mechanism ............................................................................................ II-26
2.2
Paper Transfer ........................................................................................................................ II-27
2.2.1
Paper Supply ............................................................................................................. II-27
2.2.2
Paper Registration..................................................................................................... II-27
2.2.3
Paper Eject ................................................................................................................ II-28
Содержание HL-1020
Страница 1: ......
Страница 36: ...II 20 Fig 2 22 shows the CDCC interface circuit Fig 2 22 HL 1050 ...
Страница 37: ...II 21 1 3 10 Engine I O Fig 2 23 shows the engine interface circuit Fig 2 23 HL 820 1020 1040 ...
Страница 38: ...II 22 Fig 2 24 shows the engine interface circuit Fig 2 24 HL 1050 ...
Страница 67: ...III 18 4 PACKING Fig 3 32 Documents Accessory carton Pad Pad Printer Bag Carton ...
Страница 87: ...IV 20 3 4 Location of Feed Roller Shaft and Grounding Contacts Fig 4 7 Feed shaft roller For feed roller ...
Страница 101: ...CODE UK4007000 B48K312CIR NAME V 5 Appendix 5 Main PCB Circuit Diagram HL 820 1020 1040 1 2 ...
Страница 102: ...Appendix 6 Main PCB Circuit Diagram HL 820 1020 1040 2 2 CODE UK4007000 B48K312CIR NAME A 6 ...
Страница 103: ...Appendix 7 Main PCB Circuit Diagram HL 1050 1 5 CODE UK4041000 B512001CIR NAME A 7 ...
Страница 104: ...Appendix 8 Main PCB Circuit Diagram HL 1050 2 5 CODE UK4041000 B512001CIR NAME A 8 ...
Страница 105: ...Appendix 9 Main PCB Circuit Diagram HL 1050 3 5 CODE UK4041000 B512001CIR NAME A 9 ...
Страница 106: ...Appendix 10 Main PCB Circuit Diagram HL 1050 4 5 CODE UK4041000 B512001CIR NAME A 10 ...
Страница 107: ...Appendix 11 Main PCB Circuit Diagram HL 1050 5 5 CODE UK4041000 B512001CIR NAME A 11 ...
Страница 108: ...Appendix 12 Panel Sensor PCB Circuit Diagram CODE UK4010000 B48K303CIR NAME A 12 ...
Страница 117: ...Apr 98 84U005BE0 PARTS REFERENCE LIST MODEL HL 820 1020 1040 1050 R LASER PRINTER ...
Страница 122: ...1 1 1 MODEL HL 1050 84U 861 101 103 104 84U 862 106 6 4 5 MAIN PCB HL 1050 OTHERS ISRAEL 3 ...
Страница 133: ...R Lower Tray Unit for HL 2400C Color Laser Printer PARTS REFERENCE LIST MODEL LT 24CL Feb 1999 54S003BE0 ...
Страница 135: ...CONTENTS LOWER TRAY UNIT List 1 Drawing 2 ...
Страница 137: ... 2 GENERAL DRAWING MODEL LT 24CL 54S X06 4 3 1 6 5 2 7 ...
Страница 138: ...R Lower Tray Unit for HL 2400C Color Laser Printer SERVICE MANUAL MODEL LT 24CL Feb 1999 54S004BE0 ...
Страница 214: ......
Страница 296: ...USER S GUIDE A 12 HP LaserJet IIP 6P EPSON FX 850 IBM Propritner XL EPSON FX 850 ...