Star Micronics SP300 Series manual STX-ETX mode flow diagram for host computer

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	Starts the
	STX-ETX mode.
	STX-ETX mode.					Sends an <ENQ>




	Sends <ENQ>					Receives status signal.
						Receives status signal.

	Receives status byte.		Receives a check byte.
			Receives a check byte.
NO	Is the data buffer
	Is the data buffer		Is the status an		YES
	empty?				YES
	empty?
			error?
	YES		Horizontal	NO
				NO
	Sends <STX>
	Sends <STX>		parity check
	Is an odd parity	NO	Check byte =		NO
		NO

	check?		test byte?
				YES
	YES
	(FF) H is set for the text	The test byte is set at (0)H.	Sends <ETX>
	byte.	The test byte is set at (0)H.	Sends <ETX>
	byte.
				(Printing)
					Sends <CAN>
	Acquires the exclusive OR of the content
	of the text byte and the data to sent, then
	it is used as the content of the test byte.		Ends the
			STX-ETX mode.

Transmits the data to the printer.

			Is there a data block in	NO
NO			the STX-ETX mode?
NO

Is this the last data in

a block?

YES

YES

RET

Check byte:

Horizotal parity of the printer. Test byte:

Horrizontal parity of the host computer.

STX-ETX mode flow diagram for host computer

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Contents Dot Matrix Printer SP300 Series Programmer’s Manual Page Table of Contents IBM Character Set #1 DIP SW2-1 OFF, SW2-2 on Basic Operation LED flashes Validation printing mode is setSelf Print Test Switch Operation Combined Switch OperationMicro Feed Feed + on Line + Power on Page Page To Installation Manual Interface SpecificationsSelectable. Refer to Installation Parity bit Odd, even or noneInterface Circuit Output DTR, FAULT, TXD, RCH, RTSInput RXD, CTS Input TTY-RXD, TTY-RXDROutput SD, CS Input RD, RSRS-232C Connectors and SignalsRS-422A option MA current loop optionExample of interface connections for IBM PC Interface ConnectionsInstalling the optional interface board Installing the Optional Interface BoardData Structure DTR modeDTR Mark DTR Space This mode accessed when the DIP switch 3-5 is OFF ON/X-OFF modeOFF Status STX-ETX mode Page STX-ETX mode flow diagram for host computer Interface Timing Handshaking Busy signalsPulses Logic level Compatible with TTL levelTypical interface circuit Amphenol 57-30360 connector This connector mates with anEmergency Suspension This printer can print one line of validation printing Operating MethodData format Printing FormatOther GS data LFCutting position Cutting MethodAuto cutting control codes Other position to be observedControl Codes Used for Line Spacing Control Codes Used for Character SettingControl Code Used for Graphics Printing Control Codes Used for Page LayoutControl Codes Used for Download Characters Other Control Codes Control Codes Used for Peripheral UnitsFunction Function Function Function Control Codes Used for Line Spacing Sets page length at n inches Set 1/8-inch line feed ESC 0 1BH 30HSet vertical tab positions Left end Printing area Left margin n Right margin n columns Set horizontal tab position Control Codes Used for Graphics Printing Set n/216-inch line feed simulation ESC 3 n 1BH 33H n Example Printing Possible Code Outline Definition of download characters When the 5 × 9 font is setCode Outline Example Example of transmitting data 10 × n1 ms 10 × n2 ms Printing and paper feed are prohibited Other Control Codes Function Initialize printer ESC @ 1BH 40H 03H ETXFunction U.S.A. & Europe DIP SW2-1 ON, SW2-2 on Character Code TablesPage IBM Character Set #1 DIP SW2-1 OFF, SW2-2 on Page IBM Character Set #2 DIP SW2-1 ON, SW2-2 OFF Page Japan DIP SW2-1, OFF, SW2-2 OFF Page International Character Sets Memo Page Overseas Subsidiary Companies Star Micronics AMERICA, INC