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APPENDIX
A-4. Communication Protcol
A-4-1. DTR mode
This is normally the mode for the RS-232C interface. This mode is enabled for
the RS-422A interface when the DIP switch 2-6 is set to OFF.
Signals are controlled using the DTR line as BUSY flag.
If printer errors do not occur after the power is turned on, the DTR signal line
changes to “SPACE”.
When the host computer confirms that the DTR signal line is set to “SPACE”, the
host computer sends the data text via the RXD signal line to the printer. Also, the
printer will set the DTR signal line to “MARK” when the empty space in the data
RXD
DTR
Printing
Data
Data
Data
Buffer full
Buffer empty
Power on
when paper is out
RXD
DTR
OFF LINE
ON LINE
When printing
PAPER OUT
signal
Power on
Paper end
Press the ONLINE button
after loading paper.
Содержание SP200F SERIES
Страница 2: ...DOT MATRIX PRINTER SP200F SERIES USERS MANUAL MODE D EMPLOI BEDIENUNGSANLEITUNG MANUALE DI ISTRUZIONI...
Страница 25: ...21 ENGLISH...
Страница 47: ...43 FRAN AIS...
Страница 69: ...65 DEUTSCH...
Страница 107: ...103 APPENDIX 234 158 193 240 158 193 SP210 Type SP240 Type Fig D 1 Overall dimensions mm...
Страница 108: ...104 APPENDIX Appendix E Character Font Table E 1 U S A...
Страница 109: ...105 APPENDIX...
Страница 110: ...106 APPENDIX E 2 Europe 1 represents where the character code 05 H becomes control code ENQ for the RS 422A interface...
Страница 111: ...107 APPENDIX...
Страница 112: ...108 APPENDIX E 3 International Character Sets...
Страница 113: ...109 APPENDIX E 4 VeriFone...
Страница 114: ...110 APPENDIX...