SD1, SD2 RD1, RD2, DR1, Busy | Epson T88III guide

Confidential

2.1.3.3 Interface pin assignments

Table 2.1.5 TM-T88IIIPrinter Status and Signals

Pin	Signal	Signal	Function
Number	name	direction	Function
Number	name	direction
1	FG	--	Frame ground
2	SD1	Output	Transmit data
3	SD2	Output	Transmit data
3	SD2
4	RD1	Input	Receive data
5	RD2	Input	Receive data
5	RD2
7	SG	--	Signal ground
8	DR1	Output	When DTR/DRS is selected, this signal indicates whether the host
9	DR2		computer is BUSY or READY.
			1) DR1>DR2 indicates that the printer is READY and DR1<DR2
			indicates that the printer is BUSY. The BUSY condition can be
			changed depending on the offline conditions set by the DIP switches
			(refer to Section 3.3.3).
			When the DTR/DSR control is selected, the printer becomes the
			BUSY state (DR1<DR2) under the following conditions.
					Printer status		DIP SW 2-1 status
					Printer status		ON		OFF
							ON		OFF
					1. During the period from when the power is		BUSY		BUSY
						turned on (including resetting using the
						interface) to when the printer is ready to
						receive data.
					2. During the self-test.		BUSY		BUSY
					3. When the cover is open.		—		BUSY
				Offline	4. During paper feeding using the paper		—		BUSY
						feed button.
					5. When the printer stops printing due to a		—		BUSY
					5. When the printer stops printing due to a		—		BUSY
						paper-end. (only when the paper roll is
						not present)
					6. During macro executing standby status.		—		BUSY
					7. When a temporary abnormality occurs in		—		BUSY
						the power supply voltage.
					8. When an error has occurred.		—		BUSY
					9. When the receive buffer becomes full.(*1)		BUSY		BUSY

2)When XON/XOFF control is selected:

The signal indicates whether the printer is correctly connected and is ready to receive data. SPACE indicates that the printer is ready to receive data. The signal is always DR1>DR2 (READY) indicates that the printer is ready to receive data. The signal is always DR1>DR2 except in the following cases:

•During the period from when the power is turned on to when the printer is ready to receive data

•During the self-test

TITLE

TM-T88IIIseries

SHEET	NO.
REVISION

EPSON Specification (STANDARD)

	B	NEXT	SHEET
	B	24	23
		24	23

Image 34

Epson T88III specifications SD1, SD2 RD1, RD2, DR1, Busy

Contents

TM-T88IIIseries Matsumoto Minami Plant Revisions Design Section Sheet Rev. No Document Revision SheetTM-T88 III series Sheet Rev Confidential Rev Sheet TM-T88IIIseries REV Sheet Changed ContentsGeneral Features III Confidentiality Agreement Trademarks General Features Table of Contents Commands Case SpecificationsOptions and Consumables FS q n xL xH yL yH d1 Appendix F Notes on Using the Drawer KICK-OUT Connector Appendix K Comparison Table Between TM-T88 III and TM-T88 General Specifications Printing Specifications Character Specifications Character Size 2 Supporting Character on Each Model Type Autocutter Paper SpecificationPaper Roll Supply Device Printable Area 1 Paper Roll Printable Area Printing and Cutting Positions Internal Buffer EMI and Safety Standards Applied Electrical CharacteristicsEMI Reliability Environmental Conditions Installation Switching between online and offline ConfigurationSpecifications Interface 1 RS-232 serial interface 1 TM-T88IIIPrinter Status and Signals GS a 1.4 XON/XOFF transmit timing DLE ENQ 1 or DLE ENQ 2 commands2 XON/XOFF Transmit Timing Reset Switching Serial interface connection example 4 Reset DC Characteristics 1 Minimum Reset Pulse Width pin Reverse Mode Data Transmission from Printer to Host Compatibility ModeIeee 1284 Bidirectional Parallel Interface GND Interface Pin Assignments for Each ModeDkstatus Logic-H Signal Sender Characteristics +5 V Signal Sender Characteristics Data Receiving Timing Compatibility Mode Data TRS Near end detection CS1 CS2 Specifications RS-485 compatible3 RS-485 Serial Interface DR1 DR2 Confidential RD2 SD1SD2 RD1 DR1 CS1 Other Interfaces 1 Power Supply Connector Pin Assignments Connectors Interface ConnectorsPower Supply Connector Shell Drawer Kick-out Connector Modular Connector 2 Drawer Kick-out Connector Pin Assignments 4 Drawer Circuitry Functions List of commandsESC ∗ ESC d ESC aESC c ESC p GS r GS hGS k GS v DC4 Can 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 20 Thai character code 21 Thai character code 22 Thai character code 23 Thai character code 24 Thai character code 25 Thai character code 26 Thai character code 255 Space International Character Set Switches and Buttons Power Button Panel Buttons XON/XOFF DTR/DSR DIP Switches2 Transmission Speed DIP Switch 4 DIP Switch 2-3 6 DIP Switch Parallel interface specification DIP Switch7 DIP Switch 2-3 Panel LED Indicators 1 Standby State Indication Self-test Hexadecimal Dumping C D E F G H I J 1 Errors That Automatically Recover Error Processing Error Types2 Errors That Can Possibly Recover Unrecoverable Errors Printer Operation When an Error OccursCPU Cover Open Sensor Paper SensorsCover Open Button Print Buffer-full Printing Mode General Description Setting Values in Standard and Page Modes Formatting of Print Data in the Printable Area ESC T n 12.2 Character Data Developing Position 12.3 Print Data Developing Position Color Case SpecificationsExternal Dimensions and Mass External Appearance Options Standard AccessoriesOptions and Consumables Consumables Command Notation CommandsExplanation of Terms When font B Dots is selected, this Control Commands Ascii ESC FF, ESC L, ESC S Ascii Can DLE EOT n Ascii DLE EOT Confidential Confidential DLE ENQ n Ascii DLE ENQ DLE DC4 n m t Ascii DLE DC4 ESC SP n Ascii ESC ESC ! n ESC − ESC $ nL nH ESC % n ESC &, ESC ? ESC & y c1 c2 x1 d1 Dy ⋅ Xk d1 Dy ⋅ xk ESC %, ESC ? When font B 9 ⋅ 17 is selected dots ESC ∗ NL nH d1...dk MSB When 24-dot bit image is selected ESC n ESC ESC 3 n ESC 2 , GS P ESC ESC = nESC ? n ESC & , ESC % ESC @ ESC D n1...nk NUL ESC E n ESC G n ESC J n ESC L ESC M n ESC R n ESC S ESC T n ESC $ , ESC L , ESC W , ESC \ , GS $ , GS P , GS \ ESC V n ESC !, ESC − ESC W xL xH yL yH dxL dxH dyL dyH ASC ESC Paper ESC \ nL nH ESC a n ABC Abcd Abcde ESC c 3 n ESC c 4 n ESC d n ESC c 5 nESC 2 , ESC ESC p m t1 t2 Character Code Tables , Appendix H Name Turns on/off upside-down printing mode Format FS g 1 m a1 a2 a3 a4 nL nH d1...dk FS g 2 m a1 a2 a3 a4 nL nH NUL Bytes or more space is required in the receive buffer FS p n m FS q n xL xH yL yH d1...dk1...xL xH yL yH d1...dkn 114 113 Dots = 768 dots 256 ⋅ GS ! n 117 116 GS $ nL nH GS ∗ x y d1...dx ⋅ GS a pL pH n m GS / m Name Start/end macro definition Format GS H n GS B nGS f , GS k TM-T88 GS I nEpson Kanji Japanese 125 124 GS L nL nH GS P x y ① Ascii ① GS V m ② GS V m n② Ascii GS W nL nH 130 129 GS \ nL nH GS r t m GS a n 134 133 135 134 GS f n ESC ! , GS ① GS k m d1...dk NUL ② GS k m n d1...dn UPC-A 139 138 140 139 Code B ShiftCode a Code C Transmits drawer kick-out connector status GS r n 143 142 GS v 0 m xL xH yL yH d1....dk GS w n CODE39, ITF, Codabar Bit Off/On Hex Decimal Function Kanji Control CommandsFS ! n FS − , FS W , GS Name Select Kanji character mode Format FS − n FS & , FS C 150 149 FS C n Kanji System FS S n1 n2 N2 ≤ FS W n FS ! , GS Appendix a Miscellaneous Notes Table A.1 Paper Feeding Amount Other Notes App.4 App.3 Appendix B Paper Roll Setup Replacing the Paper Roll Table C.1 Adjustment Positions Figure C.1 Near-end Adjusting Position Figure C.2 Changing the Near-end Adjusting Position Appendix D Recovery from the Auto Cutter Error Appendix E Print Head Cleaning Figure E.1 Print Head Thermal Elements Appendix F Notes on Using the Drawer KICK-OUT Connector Appendix G Transmission Status Identification Table G.1 Transmission Status Identification Table H.1 Space Page Top Address Appendix H Configuring the SpaceFCA480H FCBC80H Figure H.2 9 ⋅ 17 Font Appendix I Example Printing in page Mode Figure I.1 Page Mode Example Figure I.2 Page Mode Example Print #1,ABCDEFGHIJKLMNOPQRST1234567890 Figure I.3 Page Mode Example Appendix J CODE128 BAR Code Description of the CODE128 Bar Code Code Tables 7B,41 123,66 7B,41 123,65 Appendix K Comparison Table Between TM-T88IIIAND TM-T88II