Configuration, Interface 1 RS-232 serial interface | Epson T81

Confidential

2.CONFIGURATION

2.1Interface

2.1.1RS-232 serial interface

2.1.1.1 Specifications
Data transmission:	Serial
Synchronization:	Asynchronous
Handshaking:	DTR/DSR or XON/XOFF control
Signal levels:	MARK = -3 to -15 V:	Logic "1"/ OFF
	SPACE = +3 to +15 V: Logic "0"/ ON
Baud rate:	2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
	[bps: bits per second]
Data word length:	7 or 8 bits
Parity Settings:	None, even, odd
Stop bits:	1 or more
Connector (printer side):	Female DSUB-25 pin connector

NOTES: 1. The data word length, baud rate, and parity depend on the DIP switch settings. (See Section 3.3.3.)

2.The stop bit for the printer side is fixed to 1.

2.1.1.2Switching between online and offline

The printer does not have an online/offline switch.

The printer goes offline:

1)Between when the power is turned on (including reset using the interface) and when the printer is ready to receive data.

2)During the self-test.

3)When the cover is open.

4)During paper feeding using the paper feed button.

5)When the printer stops printing due to a paper-end (in cases when an empty paper supply is detected by either paper roll end detector or the paper roll near-end detector with a printing halt feature by ESC c 4).

6)When an error has occurred.

TITLE

EPSON

	TM-T81	SHEET	NO
	TM-T81	REVISION
	Specification
	Specification		NEXT	SHEET
	(STANDARD)	A	NEXT	SHEET
	(STANDARD)	A	12	11
			12	11

Image 21

Epson T81 Configuration, Interface 1 RS-232 serial interface, Specifications, Switching between online and offline

Contents

TM-T81 Revision Sheet SpecificationTM-T81 Revisions Design Section Sheet Rev. No Document Cover Rev Confidentiality General Contents REV. Sheet Changed Contents Confidentiality Agreement Epson Specification Standard General Features Confidential Print Buffer-full Printing Function 5 GS E pL pH fn a1 n1L n1H FS g 1 m a1 a2 a3 a4 nL nH d1...dkFunction 48 GS H pL pH fn m d1 d2 d3 d4 GS 8 L p1 p2 p3 p4 m fn parameters GS∗x y d1...dk FS q n xL xH yL yH d1...dk1 ... xL xH yL yH d1...dknGS v 0 m xL xH yL yH d1...dk Printing Specifications General Specifications Character Specifications Autocutter1 Character Size Paper Roll Supply Device Paper Specification AF50KS-E 1 Specified Original Paper Type No. Single-color paper Printable Area Printing and Cutting PositionsInternal Buffer 1 Current Consumption Operating Electrical Characteristics 2 Limitation of the Printing Length on Print Ratio EMI and Safety Standards Applied ReliabilityEMI Environmental Conditions 12.1 Operating Temperature and Humidity Range Installation Specifications ConfigurationSwitching between online and offline Interface 1 RS-232 serial interface GS a 1 TM-T81 Printer Status and Signals DLE ENQ 1 or DLE ENQ 2 commands TM-T81 Printer Status and Signals1.4 XON/XOFF transmit timing 2 XON/XOFF Transmit Timing TXD RXD DSR DTR Serial interface connection example 4 Reset DC Characteristics Reset Switching USB Universal Serial Bus Interface Outline USB transmission specifications 1 USB function Power Supply Connector Connectors1 Power Supply Connector Pin Assignments GND Shell F.G 2 Drawer Kick-out Connector Pin Assignments Drawer Kick-out Connector Modular Connector 4 Drawer Circuitry Functions List of Commands FS g GS $ GS a GS D GS E GS H GS K GS L / GS 8 L ESC a ESC c ESC d ESC p ESC t GS \ GS a GS b GS f GS g GS h GS k GS r GS w GS k GS ∗ Epson Common to all pages International Character Set USA Character Code Tables HEX 0 PC437 USA, Standard Europe 1 Katakana 2 PC850 Multilingual 3 PC860 Portuguese 4 PC863 Canadian-French 5 PC865 Nordic 16 WPC1252 17 PC866 Cyrillic #2 18 PC852 Latin2 19 PC858 Euro 255 User-defined USA International Character Sets Panel Buttons Switches and Buttons Power Button DIP Switches XON/XOFF DTR/DSR2 Transmission Speed 4 DIP Switch 2-3 DIP Switch 7 DIP Switch 2-3 USB interface specification DIP Switch 8 Types of the Customized Value Customized value 1 Panel Switches and Indicators Panel LED Indicators Self-test C D E F G H I J Hexadecimal Dumping NV Graphics Print Mode Error Processing Error Types 1 Errors That Automatically Recover2 Errors That Can Possibly Recover Printer Operation When an Error Occurs Unrecoverable ErrorsCPU Print Buffer-full Printing Cover Open Sensor External Dimensions and Mass Case SpecificationsColor External Appearance Options and Consumables Standard AccessoriesOptions Consumables Commands Command NotationExplanation of Terms MSB LSB Ascii Control Commands DLE EOT n Ascii CanAscii DLE EOT Epson Epson Ascii DLE ENQ DLE ENQ n DLE DC4 fn m t fn = Ascii DLE DC4Fn = DLE DC4 fn a b fn = Fn = DLE DC4 fn d1…d7ESC SP n D1…d7 ESC ! n ESC % n ESC $ nL nHESC & y c1 c2 x1 d1 Dy ⋅x1 Xk d1 Dy ⋅xk Dy ⋅x1 Dy ⋅xk ESC ∗ m nL nH d1...dk ESC − nD1...dk ESC 3 n ESC = nESC ? n ESC D n1...nk NUL ESC E nN1...nk ESC J n ESC G n ESC R n ESC M n ESC V n ESC T n Dx L Dx H Dy L Dy H ESC \ nL nH ESC a n ESC c 4 nESC c 5 n ESC p m t1 t2 ESC d n ESC n FS g 2 m a1 a2 a3 a4 n L n H FS g 1 m a1 a2 a3 a4 n L n H d1...dk GS $ nL nH GS ! n Test pattern GS a pL pH n mHexadecimal dump print Printer status print GS D pL pH m a1 b1...ak bk Function 1 GS E p L p H fn d1 d2 Fn = GS E pL pH fn parametersFormat GS E pL pH fn Function 5 GS E p L p H fn a1 n1 L n1 H...ak nk L nk H Function 2 GS E p L p H fn d1 d2 d3 Fn =N1 L N1 H ... ak nk L nk H Type of customized value Epson Function 6 GS E p L p H fn a Fn = Function 11 GS E pL pH fn a d1...dk fn =D1 ... dk Function 12 GS E p L p H fn a Fn = GS H pL pH fn parametersFunction 48 GS H p L p H fn m d1 d2 d3 d4 Function 50 GS K p L p H fn m Fn = GS K pL pH fn parametersFormat Function No Function name Select the print speed GS L GS 8 LGS L pL pH m fn Function 50 GS L p L p H m fn Fn = 2 Function 48 GS L p L p H m fn Fn = 0 Function 51 GS L p L p H m fn Fn = 3 Function 64 GS L p L p H m fn d1 d2 Fn =Function 65 GS L p L p H m fn d1 d2 d3 Function 66 GS L p L p H m fn kc1 kc2 Fn = FunctionKc1 Kc2 Vertical direction Horizontal direction 180 dpi 90 dpi Function 69 GS L p L p H m fn kc1 kc2 x y Bx , by P H m fn a bx by c x L x H y L y H d1...dk GS k pL pH cn fn parameters Function 066 GS k p L p H cn fn n Cn = 48 , fn = Function 065 GS k p L p H cn fn n Cn = 48 , fn = Function 068 GS k p L p H cn fn n Cn = 48 , fn = Function 067 GS k p L p H cn fn n Cn = 48 , fn = Function 069 GS k p L p H cn fn m n Cn = 48 , fn = Function 070 GS k p L p H cn fn m Cn = 48 , fn = Function 080 GS k p L p H cn fn m d1 … dk Cn = 48 , fn =D1…dk Function 081 GS k p L p H cn fn m Cn = 48 , fn = Function 082 GS k p L p H cn fn m Cn = 48 , fn =P H cn fn m Function 165 GS k p L p H cn fn n1 n2 Cn = 49 , fn = Function 167 GS k p L p H cn fn n Cn = 49 , fn =N2 = Function 180 GS k p L p H cn fn m d1 … dk Cn = 49 , fn = Function 169 GS k p L p H cn fn n Cn = 49 , fn = Function 182 GS k p L p H cn fn m Cn = 49 , fn = Function 181 GS k p L p H cn fn m Cn = 49 , fn = GS ∗ x y d1...dk GS / m= x ⋅ y ⋅ GS H n GS B n Epson GS I n GS L nL nH GS P x yGS V m B GS V m n GS W nL nH GS \ nL nHGS r t m GS a n Name Turn smoothing mode on/off Format GS f n GS g 0 m nL nHL n H GS g 2 m nL nH D1...dn GS k m d1...dk NUL GS k m n d1...dn Bar code system Range of n Range of d = 11 ≤ d ≤ 57 where d1 = JAN13 / EAN13 = 12= 11 = 7 GS r n GS w n ESC Obsolete CommandsESC m 6DF ESC u n X H y L y H d1...dk1...x L x H y L y H d1...dkn FS p n m GS v 0 m x L x H y L y H d1...dk Table A.1 Paper Feeding Amount Appendix a Miscellaneous Notes App.3 App.2 Other Notes Replacing the Paper Roll Appendix B Paper Roll Setup Appendix C Recovery from the Auto Cutter Error Figure D.1 Near-end Adjusting Position Table D.1 Adjustment Positions Figure E.1 Print Head Thermal Elements Appendix E Print Head Cleaning Appendix F Notes on Using the Drawer KICK-OUT Connector Ii. For DLE DC4 T1 ⋅ 2ms Return ∗WAIT300MS Power off procedure by the host About updating the maintenance counter Figure I-1 Slant of the Print Appendix H Notes on Printing 2-DIMENSIONAL Code END Appendix J Notes on Using the ASB Status