RS-232C Interface Connectors | Unisys EFP9800 guide

Communication

DTR/DSR Protocol

The DTR signal is used to control data transmission to the printer. It is driven low when the printer is ready to receive data and driven high when it cannot accept any more data. Data is transmitted from the printer after it confirms that the DSR signal is low.

RS-232C Interface Connectors

This section describes the pin settings for the RS-232C connectors and interface parameters. The RS-232C parameters are selected by setting the DIP switches on the PC board. For more information, see “Setting Switches” later in this section. The RS-232C parameters must match those of the host computer.

RS-232C Communication Connector Pin Assignments

The following illustrations show the RS-232C communication connector and pin assignments. The connector is a 9-pin male D-shell connector and is located at the rear of the printer.

RS-232C 9-Pin to 9-Pin Communication Connector Pin Assignments

5–4	3255 4073–002

Image 84

Unisys EFP9800 manual RS-232C Interface Connectors, Communication DTR/DSR Protocol

Contents

Unisys Owner’s GuidePage Status Status Contents Contents Diagnostics and Print Tests Section When Something Goes Wrong Contents EFP9800 ESC/POS CommandsCommunication Carriage Return Standard Mode Set Printable Area Width Print Characteristics Commands Ithaca Peripherals Proprinter Emulation Commands Section NCR 5021 Printer Emulation Commands Section EF4270 Emulation Commands Select9-10 Flash Download Commands Micr Commands and Parsing Appendix a Specifications Receipt and Journal Print Zones Xvi Section About the EFP9800 Printer About the EFP9800 Printer Features and Options Receipt Station FeaturesJournal Station Features Slip/Validation Station Features Maintaining and Cleaning the Printer General FeaturesOptions Ordering Paper and Supplies Receipt/Journal PaperSlips and Forms Other Supplies DocumentationTitle Unisys Number Using the Controls Section Operating the Printer Changing Paper Changing Receipt Paper Removing the Old Receipt Paper Roll Operating the Printer Loading the New Receipt Paper Roll Changing Receipt/Journal Paper Removing the Printed Journal 3255 Verifying Checks Operating the Printer Printing on Slips and Checks Operating the Printer Validating Slips and Checks Changing the Ribbon Cassette Operating the Printer Adjusting the Paper Low Sensor Replacing the Printhead Procedure Paper Low Sensor Setting Section Diagnostics and Print Tests Level 0 Diagnostics Level 1 Diagnostics Information About DIP Switch Settings Diagnostics and Print Tests Switch Entry Mode Choose a Printer Emulation ESC/POS IPI 3255 Switch Pack EFP9800 ESC/POS Emulation Internal Switch Pack 3, Switch Switch Settings Description EFP9800 ESC/POS Emulation Internal Switch Pack 3, Switches 2 8Unused Switch Selects Code EF4270 Emulation Internal Switch Pack 1, Switches 3 EF4270 Emulation Internal Switch Pack 1, Switches 5EF4270 Emulation Internal Switch Pack 1, Switches 7 EF4270 Emulation Internal Switch Pack 2, Switches 1, 2, EF4270 Emulation Internal Switch Pack 2, Switches 4, 5, Necessarily also feed EF4270 Emulation Internal Switch Pack 4, Switches 1, 2, 3, Switch Flash Download Mode Setting Data Scope Mode Enter Data Scope Mode Set the DIP switches to the following settings Enabling or Disabling the Cover Open Switch Diagnostics and Print Tests Exit Data Scope Mode Enable Verifying Read of Micr Characters CMC7 Checking Micr Noise Level Selecting the Font for the Micr Check Reader Switch Font Diagnostic Print Tests Print Configuration Information Continuous Slip Printing Print Each Character in the Ascii Character Set General Print Test Sample of Configuration Printout Adjusting the Printhead Gap Diagnostics and Print Tests Section When Something Goes Wrong Printer Not Operating CauseAction Indicators Showing a Problem Printer Does Not Feed Receipt/Journal PaperCause Action Carriage and Paper Jams Slips, Forms, or Checks Not Feeding Properly Slips, Forms, or Checks Skew When Feeding into the Printer Some Dots are MissingRibbon Tears or Frays More Quickly Than Expected Overall Print is Light or Smudged Action Other Serious Problems Getting Service When Something Goes Wrong Sending Commands Using DOS to Send CommandsInterfaces Using Basic to Send Commands RS-232C InterfaceRS-232C Interface Protocols XON/XOFF Protocol RS-232C Interface Connectors RS-232C Communication Connector Pin AssignmentsCommunication DTR/DSR Protocol Communication Communication Power Cable Connector Pin Assignments Cash Drawer Connector Pin AssignmentsPin Number Signal Direction Parallel Interface Connectors Parallel Communication Connector Pin AssignmentsParallel Interface Communication Setting Switches DIP Switch Settings for RS-232C Parameters DIP Switch Settings for Parallel Printers List of EFP9800 ESC/POS Commands Hexadecimal Command Name Code 3255 4073 RAM EFP9800 ESC/POS Command Descriptions Printer Function Commands Hexadecimal Decimal Ascii Standard Mode Line FeedHexadecimal Decimal Ascii EFP9800 ESC/POS Commands Eject Slip Carriage Return EFP9800 ESC/POS Commands Cancel Print Data in Page Mode Set Right-Side Character Spacing Print Mode Per Line 5 x Per Line 7 x Select Print ModesHexadecimal Decimal Value of n in Hexadecimal EFP9800 ESC/POS Commands Print Mode Set Absolute Starting PositionPer Line 5 x Per Line 7 x Value of n1 Value of n2 Set Line Spacing to Default Spacing EFP9800 ESC/POS Commands Set Line Spacing Return HomeValue of n EFP9800 ESC/POS Commands Select Peripheral Device Initialize Printer EFP9800 ESC/POS Commands Set Slip Eject Length Set Horizontal Tab PositionsValue of n Value of k EFP9800 ESC/POS Commands Print and Feed Paper EFP9800 ESC/POS Commands Select Page Mode Select Print Direction in Page Mode CommandSettings Not Used in Page Mode Set/Cancel Uni-Directional Printing Value of n Start Position Set Printing Area in Page Mode EFP9800 ESC/POS Commands EFP9800 ESC/POS Commands Set Relative Print Position Select Justification Select Print Papers Paper Type StatusBit Paper Type Select Papers For Setting Line Spacing Sensor Status Bit Sensor EFP9800 ESC/POS Commands Enable/Disable Paper Feed Button Print and Feed n LinesSet Slip Waiting Time Generate Pulse ReleaseValue of n Value of m EFP9800 ESC/POS Commands Select Head Energizing Time Set Left MarginFunction Status Bit Function Value of n Default Set Fundamental Calculation PitchSet Printable Area Width Print Characteristics Commands Select/Cancel User-Defined Character Set EFP9800 ESC/POS Commands Define User-Defined Characters Value Each ui li defines data for a 9-pin column of data FE 10 10 10 FE Set/Cancel Underline EFP9800 ESC/POS Commands Cancel User-Defined Characters Set/Cancel Emphasized Mode EFP9800 ESC/POS Commands Set/Cancel Double-Strike Mode International Character Set EFP9800 ESC/POS Commands EFP9800 ESC/POS Commands Set/Cancel Upside Down Printing Select Character Code TableHexadecimal Decimal Ascii Graphics Commands Select Bit Image Mode Value Range Description EFP9800 ESC/POS Commands Define Downloaded Bit Image Value of n1 Va Value of n1 x n2 Lue Print Downloaded Bit Image Printer Status Commands Horizontal Direction Dot DensityMax. Dots EFP9800 ESC/POS Commands Transmit Peripheral Device Status Bit EFP9800 ESC/POS Commands Transmit Paper Sensor Status EFP9800 ESC/POS Commands Transmit Printer ID Printer ID SpecificationType ID from previous table n = Type ID Status Bit Function Enable/Disable Automatic Status Back ASB Bits of n are defined as follows EFP9800 ESC/POS Commands Second Byte error information Error Status Bit Error Type Transmitted status is shown in the following tables Fourth Byte slip sensor information Slip Sensor Status Bit EFP9800 ESC/POS Commands Sent by printer EFP9800 ESC/POS Commands Transmit Status Bit Receipt/Journal Paper Out Switch Sensor Transmitted status is shown in the tables below Transmitted when there is not enough Real Time Commands Real Time Status Transmission DLE EOT = 1 Printer Status Bit Printer Function = 2 Offline Status Bit Description = 3 Error Status Bit Description = 5 Slip Paper Status Bit Slip Paper Function Real Time Request to Printer = 6 Validation Paper Status Bit Validation Paper Function EFP9800 ESC/POS Commands Bar Code Commands Select Printing Position of HRI Characters Receipt StationSelect Pitch of HRI Characters Receipt Station Select Height of Bar Code Receipt Station EFP9800 ESC/POS Commands Print Bar Code Receipt Station Bar Code Length 1D 6B m dn 29 107 m dn Select Horizontal Size of Bar Code Receipt Station Codabar NW-7 Mode Overview EFP9800 ESC/POS Commands Limitations EFP9800 ESC/POS Commands Command Settings in Both Modes Processing the Data EFP9800 ESC/POS Commands EFP9800 ESC/POS Commands EFP9800 ESC/POS Commands Examples of Printing in Page Mode Your Name Here 09 Flash Memory Commands Copy Downloaded Object to Flash Memory ESC SOH Copy the Object from Flash Memory to External RAM Section Ithaca Peripherals Proprinter Emulation Commands List of Ithaca Peripherals Proprinter Emulation Commands 44 nl...nk Ithaca Peripherals Proprinter Emulation Commands Ithaca Peripherals Proprinter Emulation Command Descriptions Open Cash Drawer Horizontal Tab Vertical Tab Perform Validation Open Forms Compensation Assembly Clear Printer Set Line Spacing to 1/8 Inch Set Fine Line Spacing n/216 InchSet Fine Line Spacing n/72 Inch Set Form Length in Inches Set Form Length in Lines Fine Line Feed Print Characteristics Commands Set 17.2 Characters/Inch Original Character SizeMaximum Characters/Line Cancel Single Line Double-Wide Cancel Underlining Select Alternative Character Set Select Character Set CodeSet 12 Characters/Inch Cancel Emphasized Printing Cancel Enhanced PrintingSet Enhanced Printing Cancel Subscript/Superscript Cancel Double-Wide for Current FontSet Subscript Format of the Data Stream for Graphics Data Bit Print Wire Top Bottom Double-Density, Half-Speed Graphics Double-Density, Normal Speed Graphics ESC Y Cash Drawer Status Commands Cash Drawer StatusBit Meaning Signifies List of NCR 5021 Emulation Commands Hexadecimal Code 1B 5B 77 01 1B 5B 7A vv yy yy...yy 1B 5B 7F vv xx xx yy...yy NCR 5021 Emulation Command Descriptions NCR 5021 Printer Emulation Commands Reset Open NCR 5021 Printer Emulation Commands Close NCR 5021 Printer Emulation Commands Reset Character RAM Open Forms Compensation AssemblyRead Slip Sensor = slip sensor status Close Forms Compensation Assembly Reprint After Media Jam NCR 5021 Printer Emulation Commands Echo Write Device Control MemoryValue Value of yy Define a Character NCR 5021 Printer Emulation Commands Download a Character Ascii NCR 5021 Printer Emulation Commands Cancel Double-Wide Set Double-WideSet Interline Spacing Read Status Read Tallies 1B 5B ESC NCR 5021 Printer Emulation Commands Read and Clear Tallies NCR 5021 Printer Emulation Commands Section EF4270 Emulation Commands List of EF4270 Emulation Commands EF4270 Emulation Commands 1F c n n n 1F EF4270 Command Descriptions End of Text EF4270 Emulation Commands Line Feed EF4270 Emulation Commands Setup Parameters Parameter Setting EF4270 Emulation Commands Reset Printer Cash Drawer EF4270 Emulation Commands Document Clamp Open Self TestDocument Validation Receipt/Journal Print EF4270 Emulation Commands Document Clamp Close Form EjectDownload Form EF4270 Emulation Commands Select Either Form-In SensorBoth Form-In Sensors Busy Until Buffer Empty EF4270 Emulation Commands Clamp Delay Time of Clamp DelayPrint Speed Buffered Validate EF4270 Emulation Commands Buffer Clear Repeat CharacterWait for Slip Value of c Value of n EF4270 Emulation Commands Cancel Slip Waiting Double-Wide FontDouble-Wide Off EF4270 Emulation Commands Character Set Character Set EF4270 Emulation Commands EF4270 Emulation Commands Underline Print Underline OffDouble-High Off Double-High Font EF4270 Emulation Commands Pitch Selection Pitch EF4270 Emulation Commands Upside-Down Off Rotate Font 90 Degrees Clockwise or Cancel Rotated PrintUpside-Down Print Value of n n Graphics Bit Number EF4270 Emulation Commands Graphics 5 Dot Dots Top to Bottom Bit Status 3 Bit ENQ ETX EF4270 Emulation Commands Status 6 Bit ESC ENQ EF4270 Emulation Commands Status 7 Bit Status-Firmware Section Flash Download Commands List of Flash Download Commands 1D FF Flash Download Command Descriptions Put the Printer in Flash Download ModeRequest Printer Identification Flash Download Commands Request Flash Identifier Select Sector to DownloadRequest Retransmission of Last Response Check CRC Flash Download Commands Return Microprocessor CRC Set EmulationRequest Current Emulation Emulation Flash Download Commands Write Eerom Switches Flash Download Commands Read Eerom switches GS VT Flash Download Commands Write Eerom Parameter Value of n Value of d Flash Download Commands Read Eerom Parameter Erase the Flash ROMReturn CRC of Selected Flash Sector Flash Download Commands Erase Selected Sector Download SectorRange of Count cl ch Flash Download Commands Reboot the printer Flash Download Commands Micr Commands Read Micr Data and TransmitDefine Parsing Format, Save in Nvram Value of n hexadecimal Micr Commands and Parsing Reread Micr Data Micr ParsingDefine Parsing Format, Do Not Save Permanently Examples of Variable Length Field Format Specifications Parsing Parameter String OptionsVariable Length Fields Selector Comments Micr Commands and Parsing Other Parameters Error Number E One Digit Returned StatusCheck Type One Digit Returned Sample Parsing Formats ESC w p 18 a CRESC w p 18 X a CR Micr Commands and Parsing ESC w p 018 a CR ESC w p 018 X a CRESC w p T 18 X a 04C CR ESC w p K9 X T 18 X a 04C CR ESC w p T ’/ a ’/ C ’/ S CR Status Byte Value Micr Characters Check Serial Number Parsing the Check Serial Number Exceptions Exception Table Entry Format Loading the Exception Table Example Micr Commands and Parsing Example Maintaining the Exception Table 11-14 Printing Specifications Speed and Print ModesReceipt/Journal Station Slip Station Character and Line Specifications SpecificationsEFP9800 ESC/POS Includes Epson ESC/POS Emulation Ithaca Peripherals Proprinter Emulation NCR 5021 Emulation Serial Interface Units only EF4270 EmulationLine Cell Size Width Margin Inch Columns Inches mm Pitch Print Zones Receipt and Journal Print Zones Validation Print Zone Emulation Number of Validation Lines Form Location of First Line of Validation from Bottom of Form Micr Read Zone Slip Print Zone Dimensions Power Requirements Environmental RequirementsReliability Character Sets Code Page 437 PC US Code Page 850 PC Multilingual Code Page 852 Eastern European Code Page 865 Nordic Languages