CHAPTER 2
THEORY OF OPERATION
1.
Block Diagram .....................................................................................................
15
2.
Main Logic Board ................................................................................................
16
2-1.
Data Input Operation ............................................................................................. 16
2-1-1. Parallel Interface ............................................................................................... 16
2-1-2. Commodore Interface ....................................................................................... 17
2-2.
General Flow Chart ............................................................................................... 19
2-2-1. Editing ............................................................................................................... 20
2-2-2. Print Head Driving Circuit ................................................................................ 20
2-2-3. Carriage Motor Driving Circuit ......................................................................... 20
2-2-4. Carriage Motor Speed Control ......................................................................... 21
2-2-5. Paper Feed Motor Driving Circuit .................................................................... 22
2-3.
Reset Circuit .......................................................................................................... 23
2-4.
Reset by +5V Line Voltage Detection .................................................................. 24
2-5.
Protection Circuit .................................................................................................. 24
3.
Power Supply Unit ..............................................................................................
24
4.
Mechanisms .........................................................................................................
25
4-1.
Print Head Mechanism .......................................................................................... 25
4-2.
Print Head Carrying Mechanism .......................................................................... 25
4-3.
Ink Ribbon Feed Mechanism ................................................................................ 26
4-4.
Paper Feed Mechanism ........................................................................................ 27
4-5.
Detectors ............................................................................................................... 28
1
2
3
4
5
6
7
8
A
Содержание lC-10
Страница 1: ...DOT MATRIX PRINTER NX 1000SERIES LC 10SERIES TECHNICAL MANUAL NINTH EDITION ...
Страница 5: ... 2 GENERAL SPECIFICATIONS ...
Страница 9: ... 6 GENERAL SPECIFICATIONS Fig 1 1 External Dimensions ...
Страница 11: ... 8 GENERAL SPECIFICATIONS Fig 1 3 Diagram of Internal Composition ...
Страница 17: ... 14 THEORY OF OPERATION ...
Страница 33: ...ADJUSTMENTS 30 ...
Страница 39: ...PARTS REPLACEMENT 36 ...
Страница 49: ... 46 ...
Страница 52: ... 49 MAINTENANCE AND LUBRICATION Fig 5 1 Lubricated Areas Detail B Monochrome Type Detail B Colour Type ...
Страница 53: ... 50 ...
Страница 55: ... 58 REPLACEMENT AND ADJUSTMENT OF PARTS ...
Страница 69: ... 66 ...
Страница 71: ... 68 1 Printer Assembly Ver 1 and 1 5 1 1 Disassembly Drawing ...
Страница 74: ... 71 2 Printer Mechanism Ver 1 and 1 5 2 1 Disassembly Drawing ...
Страница 79: ... 76 3 3 2 Colour Type ...
Страница 83: ... 80 4 Wiring Scheme of Printer Ver 1 and 1 5 4 1 Parallel Type WIRING SCHEME ...
Страница 84: ... 81 4 2 Commodore Type WIRING SCHEME ...
Страница 85: ... 82 5 Main Logic Board Ver 1 and 1 5 5 1 Parallel Type Ver 1 5 1 1 Component Layout A Board ...
Страница 86: ... 83 B Board ...
Страница 90: ... 87 Blank Page ...
Страница 91: ... 88 5 1 3 Circuit Diagram Ver 1 ...
Страница 92: ... 89 ...
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Страница 95: ... 92 5 2 Parallel Type Ver 1 5 5 2 1 Component Layout A Board ...
Страница 96: ... 93 5 2 1 Component Layout B Board ...
Страница 100: ... 97 Blank Page ...
Страница 101: ... 98 5 2 3 Circuit Diagram Ver 1 5 ...
Страница 102: ... 99 ...
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Страница 105: ... 102 5 3 Commodore Type 5 3 1 Component Layout A Board ...
Страница 106: ... 103 5 3 1 Component Layout B Board ...
Страница 109: ... 106 5 3 3 Circuit Diagram ...
Страница 110: ... 107 ...
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Страница 113: ... 110 6 Power Supply Unit Ver 1 and 1 5 6 1 Circuit Diagram 6 2 Component Layout ...
Страница 117: ... 114 ...
Страница 119: ... 116 1 Printer Assembly 1 1 Disassembly Drawing ...
Страница 122: ... 119 2 Printer Mechanism 2 1 Disassembly Drawing ...
Страница 129: ... 126 4 Wiring Scheme of Printer Ver 2 ...
Страница 130: ... 127 5 Main Logic Board Ver 2 5 1 Component Layout ...
Страница 134: ... 131 Blank Page ...
Страница 135: ... 132 5 3 Circuit Diagram Ver 2 ...
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Страница 139: ... 136 6 Power Supply Unit Ver 2 6 1 Circuit Diagram 6 2 Component Layout ...
Страница 143: ... 140 ...
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Страница 148: ... 145 9 Transistor 2SD1637 10 Transistor 2SD2010 ...
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