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SATO 410e, 400e manual Receive Buffer, Ack/Nak Protocol

Models: 400e 410e

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Unit 3: Installation

RECEIVE BUFFER

The data stream is received from the host to the printer one job at a time. This allows the software program to maintain control of the job print queue so that it can move a high priority job in front of ones of lesser importance.

A multiple job buffer allows the printer to continuously receive print jobs while compiling and printing other jobs at the same time. It acts much like a Print buffer to maximize the performance of the host and the printer.

The printer receives and prints one job at a time. If a print job exceeds the buffer size, transmission will be rejected by the printer. Flow control protocols to throttle transmission are not used. Error conditions that occur during the Print Data transmission will cause the printer to return a NAK.

ACK/NAK PROTOCOL

Bi-Directional ACK/NAK protocol is used for error control. In a normal transmission sequence when the transmission is received, the printer will return an ACK (06H) signifying that it was received without a transmission error. After the transmission command structure has been analyzed, a status byte is returned to the host. This status byte informs the host of the validity of the command structure.

If the command structure is error free, the printer proceeds with the print operation. When the print operation is completed, a Printer Status message is returned to the host. If an error was detected during the initial transmission sequence, a NAK (15H) will be returned signalling to the host that the received transmission contained errors and must be resent. If the returned Status byte indicates a command structure error, the error must then be corrected before the print data is resent to the printer.

A valid transmission to the printer must be bounded by an STX/ETX pair, with the STX (02H) signifying the start of the Print Data and ending with an ETX (03H) signifying the end.

SATO XL400-410e Operator Manual

PN 9001135A

Page 3-16

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SATO 410e, 400e manual Receive Buffer, Ack/Nak Protocol

Contents

XL400e / XL410e Printers OPERATOR MANUALCopyright SATO UK Limited SATO UK Limited Valley Road, Harwich Essex CO12 4RR Tel 01255Fax 01255 Tech Support Hotline 01255 Email techsupport@satouk.com TECHNICAL DATA INSTALLATIONINTRODUCTION TABLE OF CONTENTSTROUBLESHOOTING OPERATIONPrinter Configuration Configuration ModesMAINTENANCE Cleaning ProceduresReplacement Procedures Adjustment ProceduresPN 9001135A About This Manual General Description Control Features INTRODUCTIONRESULT IN PRESONAL INJURY ABOUT THIS MANUALWARNING PROVIDES INFORMATION THAT, IF UNHEEDED, MAY Figure 1-1b, Primary Components GENERAL DESCRIPTIONFigure 1-1a, Primary Components Figure 1-2a, Control Features CONTROL FEATURESBUTTONS & SWITCHES Figure 1-2b, Control Features Figure 1-3, Connection PortsUnit 1 Introduction SATO XL400-410e Operator ManualPN 9001135A PageTECHNICAL DATA Physical Charcteristics Enviromental Power Processing Print SensingMedia Character Font Capabilities Barcode Capabilities Interface Modules Regulatory ApprovalsPHYSICAL CHARACTERISTICS POWERENVIRONMENTAL PROCESSINGCHARACTER FONT CAPABILITIES MEDIAMATRIX FONTS AUTO SMOOTHING FONTSREGULATORY APPROVALS BAR CODE CAPABILTIESINTERFACE MODULES Interface Selection Accessories Installation INSTALLATIONUnpacking Parts Identification Printer Installation UNPACKING & PARTS IDENTIFICATION Figure 3-1, Unpacking and Parts IdentificationMEDIA SELECTION PRINTER INSTALLATIONSITE LOCATION MEDIA LOADING Figure 3-3a, Media LoadingFigure 3-3b, Media Loading Figure 3-3c, Media LoadingMedia Supply Spindle Media Media Retaining Plate Media Hold-Down Print Head LatchCutter Assembly Media Ramp Set Screw Top Housing CoverPrint Head Assembly Media Paper GuideRIBBON LOADING Figure 3-3f, Media LoadingTop Housing Cover Power Switch Power Supply Cord Ribbon Print AssemblyFigure 3-4a, Ribbon Loading Figure 3-4b, Ribbon LoadingRibbon Print Assembly Figure 3-4c, Ribbon LoadingFigure 3-4d, Ribbon Loading Ribbon Rewind Spindle Ribbon Unwind Spindle Ribbon Roll Ribbon CoreTop Housing Cover Ribbon Print Head Latch Figure 3-4e, Ribbon LoadingFigure 3-4f, Ribbon Loading Ribbon Ribbon CoreUnit 3 Installation Label/Tag Power SwitchFigure 3-4g, Ribbon Loading SATO XL400-410e Operator ManualINTERFACE SELECTION RS232 SERIAL INTERFACEPage IEEE1284 PARALLEL INTERFACE 1 Signals required for ieee 1284 modeLOCAL AREA NETWORK LAN ETHERNET 802.11B WIRELESSUNIVERSAL SERIAL BUS USB ADAPTER RECEIVE BUFFER ACK/NAK PROTOCOLACCESSORIES INSTALLATION PCMCIA MEMORY UPGRADESTACKER UNIT Figure 3-8, Label Stacker InstallationPrinting Printer Configuration Configuration Modes Operational AdjustmentsOPERATION PRINTER CONFIGURATION DIP SWITCH PANELSDSW1 DEFAULT SETTINGS SETTING FUNCTIONChecks the pitch size StatusCONFIGURATION MODES NORMAL MODETEST PRINT MODE Figure 4-2, Test Print ModeADVANCED MODE Figure 4-3, Advanced ModeDEFAULT SETTINGS MODE Figure 4-4, Default Settings ModeFLASH MEMORY DOWNLOAD MODE More Figure 4-5, Flash Memory Download ModePrinter begins USER DOWNLOAD MODE Figure 4-6, User Download ModeHEX DUMP MODE Figure 4-7, Hex Dump ModeCARD MODE Figure 4-8, Card ModeNON-STANDARD CLEAR MODE Figure 4-9, Non-Standard Clear ModeSERVICE MODE Figure 4-10a, Service Mode - Test PrintFigure 4-10b, Service Mode - Sensor Level Unit 4 OperationSATO XL400-410e Operator Manual PN 9001135ACENTER HOLE Figure 4-10c, Service Mode - Pitch OffsetPITCH OFFSET Figure 4-10d, Service Mode - Cut Offset Unit 4 OperationSATO XL400-410e Operator Manual PN 9001135AFigure 4-10e, Service Mode - Backfeed Offset Unit 4 OperationSATO XL400-410e Operator Manual PN 9001135AChart D Figure 4-10f, Service Mode - Counter DisplayChart C NORMAL MODE DEFAULT SETTINGS MODEMENU DESCRIPTIONADVANCED MODE MENUDESCRIPTION FLASH MEMORY & USER DOWNLOAD MODESCARD MODE USER TEST PRINT MODEMENU DESCRIPTIONDESCRIPTION SERVICE MODEMENU POTENTIOMETER OPERATIONAL ADJUSTMENTSDESCRIPTION/PROCEDURE Figure 4-11, Adjustment Panel DARKNESSPOSITION PRINTFigure 4-14b, Cutter Sensor Positioning CUTTER SENSOR POSITIONINGFigure 4-14a, Cutter Sensor Positioning OPERATOR PANEL Figure 4-15a, Tilting Operator PanelPOWERING OFF PRINTINGTEST PRINTING RELOADING MEDIAPerformance Testing Test Print Troubleshooting Sensor Locations TROUBLESHOOTINGError Signals Printer Troubleshooting InterfaceTroubleshooting ERROR SIGNALS ERROR SIGNAL TABLEPRINTER TROUBLESHOOTING TROUBLESHOOTING TABLENO PRINTED IMAGE LCD FIELD ILLUMINATED BUT WITHOUT WORDS OR NO DISPLAY AT ALLMEANDERING MEDIA PRINTER CREATES A BLANK LABELRS232 SERIAL INTERFACE INTERFACE TROUBLESHOOTINGPARALLEL INTERFACE TROUBLESHOOTING STEP LAN EHTERNET INTERFACEUNIVERSAL SERIAL BUS USB INTERFACE PERFORMANCE TESTING MULTIMETER WITH TEST MODULEMULTIMETER ALONE Figure 5-3, Hex Dump Mode TEST PRINT TROUBLESHOOTINGHEX DUMP MODE TEST LABEL PRINTING Figure 5-4, Test Print ModeLabel Contents Will Vary Depending on Test Label Type SAMPLE TEST LABELD S W D S WSENSOR LOCATIONS Figure 5-6, Sensor LocationsMAINTENANCE Cleaning Procedures Replacement Procedures Adjustment ProceduresCLEANING PROCEDURES Figure 6-1, Cleaning Sheet UsageREPLACEMENT PROCEDURES FUSE REPLACEMENTPRINT HEAD REPLACEMENT Figure 6-3, Print Head ReplacementRIBBON ROLLER REPLACEMENT Figure 6-4, Ribbon Roller ReplacementPRINT DEFECTS ADJUSTMENT PROCEDURESRELATIVE PROCEDURE PRINT HEAD BALANCE ADJUSTMENT Figure 6-5, Print Head Balance AdjustmentPRINT HEAD ALIGNMENT Figure 6-6, Print Head AlignmentPRESSURE ROLLER ALIGNMENT Figure 6-7, Pressure Roller AlignmentPRESSURE ROLLER BALANCE Figure 6-8, Pressure Roller BalanceRIBBON GUIDE ADJUSTMENT Figure 6-9, Ribbon Guide AdjustmentRIBBON SPINDLE TENSIONING Figure 6-10, Ribbon Spindle TensioningPITCH SENSOR ADJUSTMENT LABEL GAP & CENTER HOLE MEDIA PITCH SENSOR ADJUSTMENT EYE-MARK MEDIA EYE-MARK REFERENCE CHARTTEST PINS Multimeter AloneFigure 6-12, Test Connector Figure 6-11, Test Module & Sensor PotentiometersTP4 Test Panel Test Module Dial Connect ground probe here Connect positive probe herePITCH SENSOR ADJUSTMENT R-CORNER MEDIA R-CORNER PEFERENCE CHARTTEST PINS Multimeter AlonePITCH SENSOR ADJUSTMENT SIDE HOLE MEDIA SIDE HOLE PEFERENCE CHARTTEST PINS Multimeter AloneJUMP HOLE SENSOR ADJUSTMENT JUMP SENSOR PEFERENCE CHARTTEST PINS Multimeter AloneRIBBON SENSOR ADJUSTMENT RIBBON REFERENCE CHARTCONNECTOR PIN Multimeter AloneCUTTER SENSOR ADJUSTMENT