XON/XOFF Protocol | Unisys EFP9800 specs

Communication

•For XON/XOFF, a particular character is sent back and forth between the host computer and the printer to regulate the communication.

•For DTR/DSR, changes in the DTR/DSR signal coordinate the information flow.

The RS-232C version of the EFP9800 offers the standard options which are selected with the DIP switches. For more information on these settings, see “Setting Switches” later in this section.

XON/XOFF Protocol

The XON/XOFF characters coordinate the information transfer between the printer and the host computer. The printer sends an XON character when it is ready to receive data and it sends an XOFF character when it cannot accept any more data. The software on the host computer must monitor the communication link as shown in the following flowchart in order to send data at appropriate times.

3255 4073–002

5–3

Image 83

Unisys EFP9800 manual XON/XOFF Protocol

Contents

Owner’s Guide UnisysPage Status Status Contents Section When Something Goes Wrong Contents Diagnostics and Print Tests Communication ContentsEFP9800 ESC/POS Commands Carriage Return Standard Mode Set Printable Area Width Print Characteristics Commands Ithaca Peripherals Proprinter Emulation Commands Section NCR 5021 Printer Emulation Commands Select9-10 Section EF4270 Emulation Commands Flash Download Commands Appendix a Specifications Micr Commands and Parsing Receipt and Journal Print Zones Xvi Section About the EFP9800 Printer About the EFP9800 Printer Slip/Validation Station Features Features and OptionsReceipt Station Features Journal Station Features Options Maintaining and Cleaning the PrinterGeneral Features Slips and Forms Ordering Paper and SuppliesReceipt/Journal Paper Unisys Number Other SuppliesDocumentation Title Section Operating the Printer Using the Controls Changing Paper Changing Receipt Paper Removing the Old Receipt Paper Roll Operating the Printer Loading the New Receipt Paper Roll Removing the Printed Journal Changing Receipt/Journal Paper 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 Replacing the Printhead Adjusting the Paper Low Sensor Paper Low Sensor Setting Procedure Level 0 Diagnostics Section Diagnostics and Print Tests Information About DIP Switch Settings Level 1 Diagnostics Diagnostics and Print Tests Switch Entry Mode Choose a Printer Emulation ESC/POS IPI 3255 Switch Pack Switch Settings Description EFP9800 ESC/POS Emulation Internal Switch Pack 3, Switch EFP9800 ESC/POS Emulation Internal Switch Pack 3, Switches 2 8Unused Switch Selects Code EF4270 Emulation Internal Switch Pack 1, Switches 7 EF4270 Emulation Internal Switch Pack 1, Switches 3EF4270 Emulation Internal Switch Pack 1, Switches 5 EF4270 Emulation Internal Switch Pack 2, Switches 4, 5, EF4270 Emulation Internal Switch Pack 2, Switches 1, 2, Necessarily also feed Switch EF4270 Emulation Internal Switch Pack 4, Switches 1, 2, 3, Flash Download Mode Setting Enter Data Scope Mode Data Scope Mode Set the DIP switches to the following settings Diagnostics and Print Tests Exit Data Scope Mode Enabling or Disabling the Cover Open Switch Enable Verifying Read of Micr Characters CMC7 Checking Micr Noise Level Selecting the Font for the Micr Check Reader Font Switch Print Configuration Information Diagnostic Print Tests 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 Action Printer Not OperatingCause Cause Action Indicators Showing a ProblemPrinter Does Not Feed Receipt/Journal Paper Slips, Forms, or Checks Not Feeding Properly Carriage and Paper Jams Ribbon Tears or Frays More Quickly Than Expected Slips, Forms, or Checks Skew When Feeding into the PrinterSome Dots are Missing Action Overall Print is Light or Smudged Getting Service Other Serious Problems When Something Goes Wrong Interfaces Sending CommandsUsing DOS to Send Commands RS-232C Interface Protocols Using Basic to Send CommandsRS-232C Interface XON/XOFF Protocol Communication DTR/DSR Protocol RS-232C Interface ConnectorsRS-232C Communication Connector Pin Assignments Communication Direction Communication Power Cable Connector Pin AssignmentsCash Drawer Connector Pin Assignments Pin Number Signal Parallel Interface Parallel Interface ConnectorsParallel Communication Connector Pin Assignments Communication Setting Switches DIP Switch Settings for Parallel Printers DIP Switch Settings for RS-232C Parameters Hexadecimal Command Name Code List of EFP9800 ESC/POS Commands 3255 4073 RAM Printer Function Commands EFP9800 ESC/POS Command Descriptions Hexadecimal Decimal Ascii Hexadecimal Decimal Ascii Standard ModeLine Feed Carriage Return EFP9800 ESC/POS Commands Eject Slip Set Right-Side Character Spacing EFP9800 ESC/POS Commands Cancel Print Data in Page Mode Value of n in Hexadecimal Print Mode Per Line 5 x Per Line 7 xSelect Print Modes Hexadecimal Decimal EFP9800 ESC/POS Commands Value of n1 Value of n2 Print ModeSet Absolute Starting Position Per Line 5 x Per Line 7 x Set Line Spacing to Default Spacing Value of n EFP9800 ESC/POS Commands Set Line SpacingReturn Home Initialize Printer EFP9800 ESC/POS Commands Select Peripheral Device Value of n Value of k EFP9800 ESC/POS Commands Set Slip Eject LengthSet Horizontal Tab Positions EFP9800 ESC/POS Commands Print and Feed Paper EFP9800 ESC/POS Commands Select Page Mode Settings Not Used in Page Mode Select Print Direction in Page ModeCommand Value of n Start Position Set/Cancel Uni-Directional Printing Set Printing Area in Page Mode EFP9800 ESC/POS Commands Select Justification EFP9800 ESC/POS Commands Set Relative Print Position Bit Paper Type Select Print PapersPaper Type Status Select Papers For Setting Line Spacing Bit Sensor Sensor Status Set Slip Waiting Time EFP9800 ESC/POS Commands Enable/Disable Paper Feed ButtonPrint and Feed n Lines Value of n Value of m Generate PulseRelease Bit Function EFP9800 ESC/POS Commands Select Head Energizing TimeSet Left Margin Function Status Set Printable Area Width Value of n DefaultSet Fundamental Calculation Pitch Select/Cancel User-Defined Character Set Print Characteristics Commands 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 Set/Cancel Emphasized Mode EFP9800 ESC/POS Commands Cancel User-Defined Characters International Character Set EFP9800 ESC/POS Commands Set/Cancel Double-Strike Mode EFP9800 ESC/POS Commands EFP9800 ESC/POS Commands Decimal Ascii Set/Cancel Upside Down PrintingSelect Character Code Table Hexadecimal Select Bit Image Mode Graphics Commands Value Range Description Value of n1 Va Value of n1 x n2 Lue EFP9800 ESC/POS Commands Define Downloaded Bit Image Print Downloaded Bit Image Max. Dots Printer Status CommandsHorizontal Direction Dot Density Bit EFP9800 ESC/POS Commands Transmit Peripheral Device Status EFP9800 ESC/POS Commands Transmit Paper Sensor Status Type ID from previous table n = Type ID Status Bit Function EFP9800 ESC/POS Commands Transmit Printer IDPrinter ID Specification Bits of n are defined as follows Enable/Disable Automatic Status Back ASB EFP9800 ESC/POS Commands Transmitted status is shown in the following tables Second Byte error information Error Status Bit Error Type Fourth Byte slip sensor information Slip Sensor Status Bit EFP9800 ESC/POS Commands Sent by printer EFP9800 ESC/POS Commands Transmit Status Transmitted status is shown in the tables below Bit Receipt/Journal Paper Out Switch Sensor Transmitted when there is not enough Real Time Commands DLE EOT Real Time Status Transmission = 2 Offline Status Bit Description = 1 Printer Status Bit Printer Function = 3 Error Status Bit Description = 5 Slip Paper Status Bit Slip Paper Function = 6 Validation Paper Status Bit Validation Paper Function Real Time Request to Printer EFP9800 ESC/POS Commands Select Height of Bar Code Receipt Station Bar Code CommandsSelect Printing Position of HRI Characters Receipt Station Select Pitch of HRI Characters Receipt Station EFP9800 ESC/POS Commands Print Bar Code Receipt Station Length Bar Code 1D 6B m dn 29 107 m dn Codabar NW-7 Select Horizontal Size of Bar Code Receipt Station Overview Mode EFP9800 ESC/POS Commands Limitations Processing the Data EFP9800 ESC/POS Commands Command Settings in Both Modes EFP9800 ESC/POS Commands EFP9800 ESC/POS Commands EFP9800 ESC/POS Commands Examples of Printing in Page Mode Your Name Here 09 Copy Downloaded Object to Flash Memory Flash Memory Commands ESC SOH Copy the Object from Flash Memory to External RAM List of Ithaca Peripherals Proprinter Emulation Commands Section Ithaca Peripherals Proprinter Emulation Commands 44 nl...nk Ithaca Peripherals Proprinter Emulation Commands Open Cash Drawer Ithaca Peripherals Proprinter Emulation Command Descriptions Vertical Tab Horizontal Tab Clear Printer Perform Validation Open Forms Compensation Assembly Set Fine Line Spacing n/72 Inch Set Line Spacing to 1/8 InchSet Fine Line Spacing n/216 Inch Set Form Length in Lines Set Form Length in Inches Fine Line Feed Print Characteristics Commands Maximum Characters/Line Set 17.2 Characters/InchOriginal Character Size Cancel Underlining Cancel Single Line Double-Wide Set 12 Characters/Inch Select Alternative Character SetSelect Character Set Code Set Enhanced Printing Cancel Emphasized PrintingCancel Enhanced Printing Set Subscript Cancel Subscript/SuperscriptCancel Double-Wide for Current Font Format of the Data Stream for Graphics Data Bit Print Wire Top Bottom Double-Density, Normal Speed Graphics Double-Density, Half-Speed Graphics ESC Y Bit Meaning Signifies Cash Drawer Status CommandsCash Drawer Status Hexadecimal Code List of NCR 5021 Emulation Commands 1B 5B 77 01 1B 5B 7A vv yy yy...yy 1B 5B 7F vv xx xx yy...yy NCR 5021 Emulation Command Descriptions Open NCR 5021 Printer Emulation Commands Reset NCR 5021 Printer Emulation Commands Close = slip sensor status NCR 5021 Printer Emulation Commands Reset Character RAMOpen Forms Compensation Assembly Read Slip Sensor Reprint After Media Jam Close Forms Compensation Assembly Value Value of yy NCR 5021 Printer Emulation Commands EchoWrite Device Control Memory Define a Character NCR 5021 Printer Emulation Commands Download a Character Ascii Read Status NCR 5021 Printer Emulation Commands Cancel Double-WideSet Double-Wide Set Interline Spacing 1B 5B ESC Read Tallies NCR 5021 Printer Emulation Commands Read and Clear Tallies NCR 5021 Printer Emulation Commands List of EF4270 Emulation Commands Section EF4270 Emulation Commands EF4270 Emulation Commands 1F c n n n 1F End of Text EF4270 Command Descriptions EF4270 Emulation Commands Line Feed Parameter Setting EF4270 Emulation Commands Setup Parameters Cash Drawer EF4270 Emulation Commands Reset Printer Receipt/Journal Print EF4270 Emulation Commands Document Clamp OpenSelf Test Document Validation Form EF4270 Emulation Commands Document Clamp CloseForm Eject Download Busy Until Buffer Empty EF4270 Emulation Commands SelectEither Form-In Sensor Both Form-In Sensors Buffered Validate EF4270 Emulation Commands Clamp DelayTime of Clamp Delay Print Speed Value of c Value of n EF4270 Emulation Commands Buffer ClearRepeat Character Wait for Slip Double-Wide Off EF4270 Emulation Commands Cancel Slip WaitingDouble-Wide Font Character Set EF4270 Emulation Commands Character Set EF4270 Emulation Commands Double-High Font EF4270 Emulation Commands Underline PrintUnderline Off Double-High Off Pitch EF4270 Emulation Commands Pitch Selection Value of n n EF4270 Emulation Commands Upside-Down OffRotate Font 90 Degrees Clockwise or Cancel Rotated Print Upside-Down Print Graphics Bit Number Dots Top to Bottom Bit EF4270 Emulation Commands Graphics 5 Dot ENQ ETX Status 3 Bit ESC ENQ EF4270 Emulation Commands Status 6 Bit Status-Firmware EF4270 Emulation Commands Status 7 Bit Section Flash Download Commands 1D FF List of Flash Download Commands Request Printer Identification Flash Download Command DescriptionsPut the Printer in Flash Download Mode Check CRC Flash Download Commands Request Flash IdentifierSelect Sector to Download Request Retransmission of Last Response Emulation Flash Download Commands Return Microprocessor CRCSet Emulation Request Current Emulation Flash Download Commands Write Eerom Switches GS VT Flash Download Commands Read Eerom switches Value of n Value of d Flash Download Commands Write Eerom Parameter Return CRC of Selected Flash Sector Flash Download Commands Read Eerom ParameterErase the Flash ROM Range of Count cl ch Flash Download Commands Erase Selected SectorDownload Sector Flash Download Commands Reboot the printer Flash Download Commands Value of n hexadecimal Micr CommandsRead Micr Data and Transmit Define Parsing Format, Save in Nvram Define Parsing Format, Do Not Save Permanently Micr Commands and Parsing Reread Micr DataMicr Parsing Selector Comments Examples of Variable Length Field Format SpecificationsParsing Parameter String Options Variable Length Fields Check Type One Digit Returned Micr Commands and Parsing Other ParametersError Number E One Digit Returned Status ESC w p 18 X a CR Sample Parsing FormatsESC w p 18 a CR ESC w p K9 X T 18 X a 04C CR Micr Commands and Parsing ESC w p 018 a CRESC w p 018 X a CR ESC w p T 18 X a 04C CR ESC w p T ’/ a ’/ C ’/ S CR Micr Characters Status Byte Value Parsing the Check Serial Number Check Serial Number Exceptions Loading the Exception Table Exception Table Entry Format Example Maintaining the Exception Table Micr Commands and Parsing Example 11-14 Slip Station Printing SpecificationsSpeed and Print Modes Receipt/Journal Station Ithaca Peripherals Proprinter Emulation Character and Line SpecificationsSpecifications EFP9800 ESC/POS Includes Epson ESC/POS Emulation Inches mm Pitch NCR 5021 Emulation Serial Interface Units onlyEF4270 Emulation Line Cell Size Width Margin Inch Columns Receipt and Journal Print Zones Print Zones Validation Print Zone Lines Form Emulation Number of Validation Location of First Line of Validation from Bottom of Form Slip Print Zone Micr Read Zone Dimensions Reliability Power RequirementsEnvironmental Requirements Code Page 437 PC US Character Sets Code Page 850 PC Multilingual Code Page 852 Eastern European Code Page 865 Nordic Languages