Interface Signal Descriptions | Epson 8900 Series specification

Interface Signal Descriptions

The following paragraphs describe the serial interface signals.

Protective Ground

The protective ground (PG) line is connected directly to the power cord ground to provide protection for the equipment and personnel.

Signal Ground

The signal ground (SG) line is connected to the printer power supply ground to provide a common reference level for all interface signals except protective ground.

Transmit Data Signal

The transmit data (TD) line transfers bit-serial data from the printer to the host via the data communication equipment. During times when no data appears on the TD line, the line is held in a mark condition.

Receive Data Signal

The receive data (RD) line transfers bit-serial data from the host to the printer via the data communication equipment. During times when no data appears on the RD line, the line should be held in a mark condition.

Request to Send Signal

The printer generates the request to send (RTS) signal to condition the data communication equipment to transmit data. When the printer is in the DIRECT CONNECT mode, this control signal is on at all times following printer power-up and self-test completion. When the printer is in the MODEM CONNECT mode, the printer online state holds RTS on and the printer offline state holds RTS inactive. (The DIRECT CONNECT and MODEM CONNECT modes are selected during printer setup via the Setup/Test switch.)

Communication Interfaces 10-16

Image 207

Epson 8900 Series manual Interface Signal Descriptions

Contents

Model 8900 Series Printer Technical Reference Manual Contents Epson FX Printer Emulation Optional Emulation CommandsTl Model 855 Printer DP Emulation IBM Proprinter XL Emulation Serial Number Purchase Date Firmware Revision Copyright 2001 by Lake Erie Systems Contents Symbols Used in This Manual IBM Proprinter XL Emulation describes Epson FX Printer Emulation describes the commandsTexas Instruments Model 855 Printer WP Emulation Texas Instruments Model 855 Printer DP Emulation Other Manuals About the Printer SuppliesBuffalo Road Erie PA General Information Paper-Handling System Introduction Printer Features Print Quality Low-resolution Medium-resolution High-resolution Typical dot-matrix charactersEffect of increasing dot density Raster Graphics Printer Setup Graphics Printing Mode Display Operator control panel Setup/test menu Model 8900 Series Emulation Modes Line Feed and Carriage Return Upon Receipt of LF Execute CommandsEmulation mode submenu TI 880 Emulation Shift Out Equals Expanded Print Line Feed and Carriage Return Upon Receipt of CRCarriage Return Upon Receipt of LF, VT, or DC2 Graphics Automatic Line Feed Processing ModeTI 855 Emulation IBM Proprinter XL and Epson FX Emulations Hexadecimal Dump Mode Automatic Carriage ReturnSlashed Zeros Interface Parameters PortBuffer Size Flow Control Baud RateData Bits Parity Robust XON/XOFF XON/XOFF transmit-on/transmit-off PIN ConnectionETX/ACK end-of-text/acknowledge DTR Pin Character Set Miscellaneous Setup Parameters Ribbon Adjust Axis ControlRibbon Type Idle Delay Power-Up OnlinePaper Pull-Down Warning Limiting Control Panel Operation Graphics Printing ModeLCD Language Paper Out Equals Busy Limiting control panel operation menu Test Features Character Sets and Global Commands Character Code Table Character Sets US Ascii Character Set US Ascii Character Set Variations Between US Ascii and International Ascii International Ascii Character Sets IBM PC1 Character Set, Left Half IBM PC1 Character Set IBM PC1 Character Set, Right Half IBM PC2 Character Set, Left Half IBM PC2 Character Set IBM PC2 Character Set, Right Half Nordic PC Character Set, Left Half Nordic PC Character Set Nordic PC Character Set, Right Half ISO 8859/1 Multinational Character Set, Left Half ISO 8859/1 Multinational Character Set ISO 8859/1 Multinational Character Set, Right Half IBM Multinational Character Set, Left Half IBM Multinational Character Set IBM Multinational Character Set, Right Half Control Characters Information separators C0 Control CharactersHexadecimal Char Code Definition Communication controls Format effectors Printer Commands Command Command Name Global Command DescriptionsGlobal Command Set Model 8900 Series Printers Global Commands Set Barcode Parameters Barcode Operations Oversize Characters Feature Print Barcode TextSet Oversize Character Scale Factor Print Oversize Character Color Printing Selecting a Form Format Selecting an Automatic Sheet Feeder Bin Defining Raster Graphics Selecting a Font Selecting a Font’s HMIFont ID No Value of n Selecting Characters Per Inch cpiSelecting Print Quality Hex Value Pitch Selecting an International Character Set ModeCharacter Set Hex Selecting an Emulator Adjusting the Print head Z-Axis Position Writing to the Printer DisplayPaper-Handling Operations Character Sets and Global Commands Texas Instruments Model 880 Printer Emulation Tab Right to Column N Cancel Double Line Spacing Introduction TI 880 Response Format Selection Tl 880 Answer Message Function Form Format Selection Model 880 Printer Emulation CommandsModel 880 Emulation Commands Command Command Name Printer Operation Horizontal Motion Command Command Name Margin Control Line Spacing Model 880 Emulation CommandsCommand Command Name Vertical Motion Character Pitch Font Selection Raster Graphics Variables N and n Model 880 Command Descriptions Sound Bell Printer Operation CommandsTransmit Configuration Report Code Configuration Code Description Model 880 Configuration Codes Code Error Miscellaneous Configuration CodesTransmit Status Report Select Unidirectional Printing Form Format Selection CommandsModel 880 Error Codes Cancel Unidirectional Printing Load Default Form Parameters TI Model 880 Printer Emulation Set Top and Bottom Margins at Lines N1 and N2 Margin Control CommandsSet Top Margin at Line N Set Bottom Margin at Line N Set Left and Right Margins at Columns N1 and N2 Restore Default Line WidthSet Left Margin at Column N Set Right Margin at Column N Move to Column n Horizontal Motion CommandsBackspace Tab Horizontally Clear All Horizontal Tab Stops Tab Right to Column NTab Right N Columns Set Horizontal Tab Stops Line Feed Vertical Motion CommandsSet Horizontal Tab Stop at Current Position Clear Horizontal Tab Stop at Current Position Tab Vertically N Lines Tab VerticallyMove to Line n Tab Vertically to Line N Clear All Vertical Tab Stops Character Pitch CommandsSet Vertical Tab Stops Set Vertical Tab Stop at Current Position Line Spacing Commands Set Line Spacing to n/216 Inch Set Line Spacing to 8 lpiSet Line Spacing to n/72 Inch Set Line Spacing to N/144 Inch Print Enhancement Commands Set Up Graphics Parameters Raster Graphics Commands Select 120 dpi Graphics Select 60 dpi Graphics Designate G0 Font by ROM Identifier N Font Selection CommandsSelect Font N Font Invocation Select Designated Character From G3 Font Designate G2 Font by ROM Identifier NDesignate G3 Font by ROM Identifier N Select Designated Character From G2 Font Invoke G1 Font as GR Invoke G2 Font as GRInvoke G3 Font as GR Texas Instruments Model 855 Printer WP Emulation Tab Vertically Absolute Page Introduction Motion Indexes Model 855 WP Commands Model 855 WP CommandsForm Format and Font Selection Model 855 WP Commands Command Name Horizontal Motion ESC SP Suspend Printing Model 855 WP Command DescriptionsSelect DP Mode Select WP Mode Set Most Significant Bit Cancel Reverse PrintingReset Most Significant Bit Select Reverse Printing Set Form Length to n1 n2 Lines Form Format and Font Selection Commands Select Right Margin Justification Set Left Margin at Current Position Cancel Right Margin JustificationSet Top Margin at Current Position Set Bottom Margin at Current Position Horizontal Motion Commands Tab Horizontally Absolute Move Back 1/120 inch Tab Vertically Absolute Move Down One-Half Line Character Pitch CommandsMove Up One Line Move Up One-Half Line Print Special Character Character Set CommandsSet Vertical Motion Index to n-1/48 Inch Set Vertical Motion Index to n-1/144 Inch Select Compressed Print Cancel Expanded PrintCancel Compressed Print Select Expanded Print Select Text-Underline Print Cancel Text-Underline PrintCancel Boldface Print Cancel Shadow Print Select 144 dpi Graphics Select 72 dpi Graphics Texas Instruments Model 855 Printer DP Emulation Set Character Pitch to 10 cpi Set Character Pitch to 12 cpi Introduction Command Name Printer Operation Model 855 DP Commands Model 855 DP Commands Command Name Vertical Motion Color Emulation Model 855 DP Command Descriptions Escape sequence ESC b Hexadecimal 1B Control character. BS Hexadecimal Tab Horizontally Move Print Position to Left Margin Escape sequence ESC Hexadecimal 1B 5E Character Pitch Commands Set Line Spacing to 7/72 Inch DC2 Select Epson-JX Compatible Color Mode Select TI 857 Compatible Color ModeColor Emulation Raster Graphics Commands IBM Proprinter XL Emulation Disable Automatic Line Feed Raster Graphics Commands Introduction IBM Proprinter XL Emulation Commands IBM Proprinter XL CommandsForm Format and Margin Control Character Set Character Pitch and Line Spacing IBM Proprinter XL Command Descriptions IBM Proprinter XL Commands concludedCommand Name Print Enhancement Cancel Line Select PrinterDeselect Printer Form Format and Margin Control Commands Set Form Length to n InchesSet Top of Form Position Select Automatic Perforation Skip Cancel Automatic Perforation Skip Control character. CR Hexadecimal 0D Restore Default Tab Stops Enable Automatic Line Feed Perform n/216 Inch Line FeedPerform Reverse Line Feed Clear Vertical Tab Stops Character Pitch and Line Spacing CommandsDisable Automatic Line Feed Reverse Line Feed Select Programmable Line Spacing Print Multiple Specified Characters Select PC1 Character SetSelect PC2 Character Set Print Single Specified Character DC4 Select Text-Overscore Print Cancel Text-Overscore Print Select Subscript Print Cancel Superscript PrintCancel Subscript Print Select Superscript Print Enable/Disable Double-High Double-Wide Print M2 data byte, bit 0 is least significant M1 data byte, bit 0 is least significant Select High-Speed 120 dpi Graphics Select 240 dpi Graphics Mode Epson FX Printer Emulation Mode Perform n/216 Inch Line Feed Select Graphics Mode m Introduction ESC EM Epson FX Printer Emulation Commands Epson FX Emulation CommandsForm Format Command Command Name Horizontal Motion Command Command Name Character Set Epson FX Emulation Command Descriptions Delete Character Initialize Printer Set Most Significant Bit to ZeroSet Most Significant Bit to One Select Unidirectional Printing for One Line Only Cancel Most Significant Bit Control Form Format Commands Select Letter-Quality Courier Font Select Letter-Quality Gothic Font Select Left Margin Justification Select Full JustificationSelect Text Centering Set Left Margin at Column n Horizontal Motion Commands Set Relative Print Position Set Absolute Print Position N1...n32 Form Feed Select Vertical Tab Channel Set VTC Tab StopsClear All VTC Tab Stops Set Intercharacter Space Line Spacing Commands Select Extended Graphics Character Set Select Italic Character Set Enable Character Positions 128-159 as Printable Characters Disable Character Positions 128-159 as Printable CharactersSelect International Character Set Select Expanded Print for One Line Select Expanded Print Until Canceled by ESC W NUL Cancel Double-High PrintSelect Double-High Print Cancel Compressed Print Cancel Boldface Print Cancel Italic Print Select Master Print ModeSelect Italic Print Graphics Commands Select 9-Pin 60 dpi Graphics Select 9-Pin 120 dpi GraphicsSelect 240 dpi Graphics Reassign Graphics Mode Select Graphics Mode m Optional DEC LA 120 Emulation DEC LA120 Commands DEC LA120 Emulation Commands Horizontal Pitch Sequences Horizontal Tab Sequences Vertical Tab Sequences Vertical Pitch SequencesCharacter Set Selection Sequences DEC LA120 Emulation New Line ModeDEC LA120 Commands Not Recognized Answerback Memory Function Answerback Memory Message Load Auto Wrap Communication Interfaces 10-18 Introduction Communication interfaces simplified block diagrams Data-Transfer OperationsHost Local system Parallel Interface Printer Host Parallel Communication Interface Parallel Interface Signals Name Pin Return Source Parallel Interface Signal Descriptions Data Signals Data Strobe SignalAcknowledge Signal Busy Signal Fault SignalInitialize Signal Parallel Interface Communication Protocol Parallel data timing sequence Timing Requirements Parallel Interface Timing Requirements Initialize Sequence Error Conditions Serial Communication InterfaceCommunication Interfaces Pin Source Serial Interface ConnectorSerial Interface Signals Name Interface Connection Interface Signal Descriptions Data Terminal Ready Signal Clear to Send SignalData Set Ready Signal Data Carrier Detect Signal Serial Data Format Interface Data Transmission Rate Transfer direction Start Bit Transfer direction Start Bit LsbSerial data structures Stop Bit Parity Flow-Control Busy-Handling Protocols Serial Interface Busy-Handling Protocols Direct-Connect Busy-Handling Protocols Optional Communication Interfaces Current Loop Communication Interface RS-422 Communication Interface Introduction Axis Adjustment Escape Sequence Isolated labels Uneven edges Considerations for Z-Axis Adjustments Paper motion is reversed Text Label Using the Z-Axis Escape SequenceEscape Sequence Z-Axis Printhead Position Right margin of 1-inch is set at column ESC DLE E TI855 EXT ESC CR P changes to TI855 WP Emulation Commands Index Communication interface Nvram Printing Unidirectional printing 7-8 Width, line Adjust