Epson NX Service Manual Page 116
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108
PINOUT OF INTERFACE CONNECTOR
The following describes the pinout of the interface connector (signals which
are low when active are overlined).
Parallel interface
Pin Name Function
1 STROBE Goes from high to low (for
>
0.5 µs) when active
2 DATA 0 High when active
3 DATA 1 High when active
4 DATA 2 High when active
5 DATA 3 High when active
6 DATA 4 High when active
7 DATA 5 High when active
8 DATA 6 High when active
9 DATA 7 High when active
10 ACK 5µs low pulse acknowledges receipt of data
11 BUSY Low when printer ready to receive data
12 PAPER High when paper out. Can be disabled with EDS setting
13 SELECT High when printer is on-line
14 - 15 N/C
16 SIGNAL GND Signal ground
17 CHASSIS Chassis ground (isolated from signal ground)
18 +5V +5V DC output from printer
19 - 30 GND Twisted pair ground return
31 RESET When this input signal is low, printer is reset
32 ERROR Outputs low when printer cannot continue, due to an error
33 EXT GND External ground
34 - 35 N/C
36 SELECT IN Always high
- MULTI-FONT 1
- HOW TO USE THIS MANUAL 3
- TABLE OF CONTENTS 5
- INTRODUCTION 9
- PRINTER COMPONENTS 10
- SUMMARY OF PRINTER FEATURES 12
- FONT STYLE EXAMPLE 14
- SETTING UP THE PRINTER 15
- UNPACKING AND INSPECTION 16
- Installing the platen knob 17
- Removing the front cover 18
- Figure 2-5 19
- Figure 2-6 19
- Installing the front cover 20
- Installing the paper guide 21
- Figure 2-10 22
- Figure 2-11 22
- PAPER INSTALLATION AND USE 25
- ADJUSTING THE PRINTING GAP 26
- LOADING FANFOLD FORMS 27
- Figure 3-4 28
- Figure 3-5 28
- Figure 3-6 29
- Figure 3-7 29
- Paper parking 30
- Paper unparking 31
- Tear off function 32
- LOADING SINGLE SHEETS 33
- Figure 3-12 34
- CONTROL PANEL OPERATIONS 35
- PAPER FEED 36
- Short test mode 38
- Long test mode 39
- Pitch lock mode 40
- Font lock mode 40
- Font and Pitch lock mode 40
- Dot adjustment mode 40
- Hexadecimal dump 42
- Form feed 43
- Top of form 44
- Forward micro-feed 44
- Reverse micro-feed 44
- Clearing the buffer/All reset 45
- Save Macro Definition 46
- DEFAULT SETTINGS-EDS MODE 49
- FUNCTIONS OF THE EDS SETTINGS 50
- TROUBLESHOOTING 55
- MAINTENANCE 60
- OPTIONAL ACCESSORIES 61
- Setting up 62
- Figure 7-4 63
- Figure 7-5 63
- Figure 7-6 64
- Loading paper 65
- Figure 7-9 66
- Figure 7-10 66
- INTERFACE CONVERTER 67
- PRINTER CONTROL COMMANDS 69
- FONT CONTROL COMMANDS 70
- Select upright characters 71
- Emphasized printing 71
- Double-strike printing 71
- Cancel emphasized printing 71
- Cancel double-strike printing 71
- Underlining 72
- Select score 72
- Select ornament chracter 72
- Superscript 73
- Subscript 73
- CHARACTER SET COMMANDS 74
- Select Graphics character set 75
- Select character set #1 75
- Select character set #2 75
- Pica pitch 76
- Elite pitch 76
- Semi-condensed pitch 76
- Condensed printing 76
- Cancel condensed printing 77
- Proportional spacing 77
- Expanded printing 77
- Select character width 78
- Select master print mode 78
- Return to normal height 79
- Increase character spacing 79
- VERTICAL POSITION COMMANDS 80
- Set line spacing to n/60 inch 81
- Line feed 81
- Reverse line feed 81
- Select forward feed mode 81
- Select reverse feed mode 81
- Set page length to n inches 82
- Set bottom margin 82
- Set page length to n lines 82
- Cancel bottom margin 83
- Set vertical tab stops 83
- Select vertical tab channel 84
- Vertical tab 84
- HORIZONTAL POSITION COMMANDS 85
- Carriage return 86
- Backspace 86
- Set horizontal tab stops 86
- Horizontal tab 86
- Relative horizontal tab 87
- GRAPHICS COMMANDS 88
- ASCII Decimal Hexadecimal 89
- Select graphics mode 90
- Convert graphics density 90
- DOWNLOAD CHARACTER COMMANDS 91
- Select download character set 92
- Shift download character area 92
- Select ROM character set 92
- OTHER PRINTER COMMANDS 93
- Set printer off-line 94
- Set printer on-line 94
- Bi-directional printing 94
- Uni-directional printing 94
- Manual feed 95
- Auto feed 95
- Eject paper from ASF 95
- Reset printer 96
- DOWNLOAD CHARACTERS 97
- ASSIGNING THE CHARACTER DATA 98
- SAMPLE PROGRAM 99
- MS-DOS AND YOUR PRINTER 103
- PROGRAMMING WITH BASIC 106
- How the program works 112
- REFERENCE 113
- Parallel interface 116
- Serial Interface 117
- CHARACTER SETS 118
- Italic character set #2 119
- International character sets 121
- Graphics character set #2 122
- Code Page #860 (Portuguese) 125
- Code Page #861 (Icelandic) 126
- Code Page #865 (Nordic) 128
- Character set #1 129
- COMMAND SUMMARY 135
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