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A794 Thermal Receipt PrinterOwner's GuideA794-D100TM

Chapter 2: Using the Printer♦ Unpack the PrinterRemove the Starter Paper Roll Supports♦ Choose a LocationOn a Flat SurfaceOn a Wall♦ Connect the Cable

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 95Related InformationTop of Bit ImageReceipt8-Dot Single-Density Mode d4 d3 d2 d1

Chapter 6: Programming Information A794 Owner’s GuideDecember 199996Print Advanced Raster GraghicsASCII ESC . m n rL rH d1 … dnHexadecimal 1B 2E m n r

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 97Select Double-Density GraphicsASCII ESC Y n1 n2 d1 ... dnHexadecimal 1B 59 n1 n2

Chapter 6: Programming Information A794 Owner’s GuideDecember 199998Select the Current LogoASCII GS # nHexadecimal 1D 23 nDecimal 29 35 nRange of n: 0

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 99Define Downloaded Bit ImageASCII GS * n1 n2 d1 ... dn]Hexadecimal 1D 2A n1 n2 d1

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999100Print Downloaded Bit ImageASCII GS / mHexadecimal 1D 2F mDecimal 29 47 mValue and

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 101Status CommandsStatus Command IntroductionThe A794 has three methods of providin

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999102Transmit Peripheral Device Status (RS-232C printers only)ASCII ESC u 0Hexadecimal

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 103Transmit Paper Sensor StatusASCII ESC vHexadecimal 1B 76Decimal 27 118Values:Sta

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999104Transmit Printer IDASCII GS I nHexadecimal 1D 49 nDecimal 29 73 nValue of n: 1, 4

Chapter 2: Using the Printer A794 Owner’s GuideDecember 19996Unpack the PrinterSave all packing materials for use if printer needs to be repacked. Che

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 105Transmit Printer ID, Remote Diagnostics ExtensionASCII GS I @ nHexadecimal 1D 49

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999106Value of nRemote Diagnostic Item FunctionASCII Hex Decâ 83 131 Receipt lines tall

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 107Performs the remote diagnostic function specified by n.Eighteen remote diagnosti

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999108Printer Status (n = 1 or n = 49)Bit Off/On Hex Decimal Status for Transmit Status

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 109Send Printer Software VersionASCII AX VHexadecimal 1F 56Decimal 31 86The printer

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999110Real Time CommandsThe Real Time commands provide an application interface to the

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 111Rules for Using Real Time CommandsThree situations must be understood when using

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999112Busy Line and Fault ConditionsIf the printer is in error condition (cover is open

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 113Real Time Status Transmission (continued)2 = Transmit RS-232C Busy StatusBit Sta

Chapter 6: Programming Information A794 Owner’s GuideDecember 19991144 = Transmit Receipt Paper StatusBit Status Hex Decimal Function0 Off 00 0 Fixed

A794 Owner’s Guide Chapter 2: Using the PrinterDecember 1999 7Remove the Starter Paper Roll SupportsStarter RollThermal PaperPaper RollSupportsTestPri

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 115Real Time Request to PrinterGS Sequence DLE SequenceASCII GS ETX n DLE ENQ nHexa

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999116Real Time Printer Status TransmissionASCII GS ENQHexadecimal 1D 05Decimal 29 5Tra

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 117Auto Status BackSelect or Cancel Automatic Status Back (ASB)ASCII GS a nHexadeci

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999118Select or Cancel Automatic Status Back (ASB) (continued)ExceptionsIf n = 0, ASB i

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 119Select or Cancel Automatic Status Back (ASB) (continued)Second Byte (Error info

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999120Recognizing Data from the PrinterAn application sending various Real Time and non

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 121Bar Code CommandsThese commands format and print bar codes and are described in

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999122Print Bar CodeFirst Variation Second VariationASCII GS k m d1…dk NUL GS k m n d1…

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 123Print Bar Code (continued)Second Variation Length of Byte Specified at Beginning

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999124Page Mode CommandsPage Mode is one of two modes that the A794 printer uses to ope

Chapter 2: Using the Printer A794 Owner’s GuideDecember 19998Choose a LocationYou can install the printer three ways: flat on a level surface, set ver

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 125Print Data in Page ModeASCII ESC FFHexadecimal 1B 0CDecimal 27 12Collectively pr

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999126Select Standard ModeASCII ESC SHexadecimal 1B 53Decimal 27 83Switches from Page M

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 127Selects the printing direction and start position in Page Mode. See the illustra

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999128Set Absolute Vertical Print Position in Page ModeASCII GS $ nL nHHexadecimal 1D 2

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 129Set Relative Vertical Print Position in Page ModeASCII GS \ nL nHHexadecimal 1D

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999130Macro CommandsThese commands are used to select and perform a user-defined sequen

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 131Execute MacroASCII GS ^ r t mHexadecimal 1D 5E r t mDecimal 29 94 r t mValue of

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999132User Data Storage CommandsWrite to User Data StorageASCII ESC ‘ m a0 a1 a2 d1 ...

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 133Select Memory Type (SRAM/Flash) Where to Save Logos or User-Defined FontsASCII G

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999134Flash Memory User Sectors AllocationASCII GS " U n1 nHexadecimal 1D 22 55 n1

A794 Owner’s Guide Chapter 2: Using the PrinterDecember 1999 9Connect the CablesCaution: Connect the cables to the printer before plugging in the pow

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 135Flash Download CommandsThese commands are used to load firmware into the printer

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999136Return Boot Sector Firmware Part NumberASCII GS NULLHexadecimal 1D 00Decimal 29 0

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 137Return Microprocessor CRCASCII GS BELHexadecimal 1D 07Decimal 29 7Returns the CR

Chapter 6: Programming Information A794 Owner’s GuideDecember 1999138Download to Active Flash SectorASCII GS DC1 aL aH cL cH d1… dnHexadecimal 1D 11 a

A794 Owner’s Guide IndexDecember 1999 139Index—8—80 mm paperprint zones, 2782.5 mm paperprint zones, 29—A—Accessories. See Supplies—B—Bar codes, 4BASI

Index A794 Owner’s GuideDecember 1999140—D—Density of print, 30Description of printer, 2DOSsending commands, 42DTR/DSR protocol, 45Duty cyclelimitatio

A794 Owner’s Guide IndexDecember 1999 141—R—Real time commandsalternate implementation, 110preferred implementation, 110Receiptnot cut, 19Reset button

TMA794-D100 189-9200250 A 12/99 AXIOHM is the name and mark of AXIOHM© 1999 AXIOHMPrinted in U.S.A.

Chapter 2: Using the Printer A794 Owner’s GuideDecember 199910Cash Drawer CablesThe Cash Drawer Cable connects the printer to one or two cash drawers.

A794 Owner’s Guide Chapter 2: Using the PrinterDecember 1999 11Printer ControlsPaper FeedButtonLED (Green)ResetButtonReset ButtonShould a paper jam or

Chapter 2: Using the Printer A794 Owner’s GuideDecember 199912ToneA single beep indicates the printer has successfully completed its startup routine (

A794 Owner’s Guide Chapter 2: Using the PrinterDecember 1999 13Loading Receipt PaperChange the paper when any of the following conditions occurs:♦ Col

Chapter 2: Using the Printer A794 Owner’s GuideDecember 1999142. Remove the used paper roll.3. Tear off the end of the new roll so that the edge is lo

December 1999 iLegal NoticesDisclaimerInformation in this document is subject to change without notice. Consult your Axiohm salesrepresentative for in

A794 Owner’s Guide Chapter 2: Using the PrinterDecember 1999 154. Place the new roll into the paper bucket with a few inches of paper extending overth

Chapter 2: Using the Printer A794 Owner’s GuideDecember 199916Configuring the PrinterThe Configuration Menu allows the user to set general printer par

A794 Owner’s Guide Chapter 2: Using the PrinterDecember 1999 17For more information about See this sectionPoorly printed test printout “Troubleshootin

Chapter 2: Using the Printer A794 Owner’s GuideDecember 199918Troubleshooting the PrinterThe printer is simple and generally trouble-free, but from ti

A794 Owner’s Guide Chapter 2: Using the PrinterDecember 1999 19Printing ProblemsProblem Possible Causes What to Do Where to GoColored stripe on therec

Chapter 2: Using the Printer A794 Owner’s GuideDecember 199920This page intentionally left blank.

Chapter 3: Media and Supplies Guide♦ Ordering Thermal PaperThermal Paper SpecificationsManufacturersHow to Order♦ Ordering Miscellaneous SuppliesOrder

Chapter 3: Media and Supplies Guide A794 Owner’s GuideDecember 199922Ordering Thermal PaperThermal Paper SpecificationsThe printer requires qualified

A794 Owner’s Guide Chapter 3: Media and Supplies GuideDecember 1999 23Ordering Miscellaneous SuppliesOrdering Cash DrawersOrder cash drawers from the

Chapter 3: Media and Supplies Guide A794 Owner’s GuideDecember 199924Ordering Communication CablesContact your sales representative to order the commu

December 1999iiIn order to ensure compliance with the Product Safety, FCC and CE marking requirements, youmust use the power supply, power cord, and i

Chapter 4: Print Specifications♦ CharactersPrint ModesSize♦ Paper Specifications♦ Print ZonesPrint Zones for 80 mm PaperPrint Zones for 82.5 mm Paper♦

Chapter 4: Print Specifications A794 Owner’s GuideDecember 199926CharactersPrint ModesAvailable print modes:♦ Standard♦ Compressed♦ Double High♦ Doubl

A794 Owner’s Guide Chapter 4: Print SpecificationsDecember 1999 27Paper SpecificationsThe printer requires qualified thermal paper with the following

Chapter 4: Print Specifications A794 Owner’s GuideDecember 199928When printinggraphics or logos,converted from6 dot/mm to8 dot/mm, theprintable zoneis

A794 Owner’s Guide Chapter 4: Print SpecificationsDecember 1999 29Print Zones for 82.5 mm PaperSpecifications of print zone for 82.5 mm paper:♦ 640 do

Chapter 4: Print Specifications A794 Owner’s GuideDecember 199930Print Density and Density of Receipt Print LinesThis function makes it possible to ad

A794 Owner’s Guide Chapter 4: Print SpecificationsDecember 1999 31Duty Cycle Restrictions (Printing Solid Blocks)There are restrictions on the duty cy

Chapter 4: Print Specifications A794 Owner’s GuideDecember 199932Character SetsCode Page 437

A794 Owner’s Guide Chapter 4: Print SpecificationsDecember 1999 33Code Page 850

Chapter 4: Print Specifications A794 Owner’s GuideDecember 199934Code Page 852

A794 Owner’s Guide ContentsDecember 1999iiiContentsChapter 1: About the Printer...1Descript

A794 Owner’s Guide Chapter 4: Print SpecificationsDecember 1999 35Code Page 858

Chapter 4: Print Specifications A794 Owner’s GuideDecember 199936Code Page 860

A794 Owner’s Guide Chapter 4: Print SpecificationsDecember 1999 37Code Page 863

Chapter 4: Print Specifications A794 Owner’s GuideDecember 199938Code Page 865

A794 Owner’s Guide Chapter 4: Print SpecificationsDecember 1999 39Code Page 866

Chapter 4: Print Specifications A794 Owner’s GuideDecember 199940Code Page 1252

Chapter 5: Communication Interface♦ Communication OverviewInterfaceSending Commands♦ RS-232C InterfacePrint Speed and TimingXON/XOFF ProtocolDTR/DSR P

Chapter 5: Communication Interface A794 Owner’s GuideDecember 199942Communication OverviewIn order for a receipt to be printed, a program must be in p

A794 Owner’s Guide Chapter 5: Communication InterfaceDecember 1999 43RS-232C InterfaceThe RS-232C interface uses either XON/XOFF (software) or DTR/DSR

Chapter 5: Communication Interface A794 Owner’s GuideDecember 199944The next table shows that with no delay between lines, the transmit time is much l

Contents A794 Owner’s GuideDecember 1999ivCode Page 852 ...34Code Page 858 ...

A794 Owner’s Guide Chapter 5: Communication InterfaceDecember 1999 45DTR/DSR ProtocolThe DTR signal is used to control data transmission to the printe

Chapter 5: Communication Interface A794 Owner’s GuideDecember 199946Power ConnectorWith RS-232C, the printer is always remotely powered. The following

A794 Owner’s Guide Chapter 5: Communication InterfaceDecember 1999 47RS-232C SettingsThe printer supports the standard RS-232C settings:Baud Rate1200,

Chapter 5: Communication Interface A794 Owner’s GuideDecember 199948Parallel InterfaceThe printer is also available with an IEEE-1284 parallel interfa

Chapter 6: Programming Information♦ Command Conventions♦ List of Commands and LocationsBy Command CodeBy Function♦ Comparisons♦ Command DescriptionsPr

Chapter 6: Programming Information A794 Owner’s GuideDecember 199950Command ConventionsThe following information describes how each command is organiz

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 51List of Commands and LocationCommands control all operations and functions of the

Chapter 6: Programming Information A794 Owner’s GuideDecember 199952Code (Hexadecimal) Command Page1B 21 n Select Print Mode 821B 24 nL nH Set Absolut

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 53Code (Hexadecimal) Command Page1B 75 n Request Alternate Status 1021B 75 0 Transm

Chapter 6: Programming Information A794 Owner’s GuideDecember 199954Code (Hexadecimal) Command Page1D 6B m d1...dk 00 Print Bar Code 1221D 6B m n d1..

Chapter 1: About the Printer♦ Description of Printer♦ Models AvailableModel IdentificationCommunication Interfaces♦ Features♦ Options

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 55By FunctionAll items in BOLD are new or have additional functionality when compar

Chapter 6: Programming Information A794 Owner’s GuideDecember 199956Horizontal Positioning CommandsCode (Hexadecimal Command Page09 Horizontal Tab 721

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 57Graphics CommandsCode (Hexadecimal Command Page11 n1 … n72 Print Raster Graphics

Chapter 6: Programming Information A794 Owner’s GuideDecember 199958Barcode CommandsCode (Hexadecimal Command Page1D 48 n Select Printing Position for

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 59Flash Download CommandsCode (Hexadecimal Command Page1B 5B 7D Switch Flash Downlo

Chapter 6: Programming Information A794 Owner’s GuideDecember 199960ComparisonsThe following table details the list of commands whose behavior differs

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 61Command DescriptionsPrinter Function CommandsThe printer function commands contro

Chapter 6: Programming Information A794 Owner’s GuideDecember 199962Perform Partial Knife CutASCII SUB ESC mHexadecimal 1A 1B 6DDecimal 26 27 109Parti

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 63Initialize PrinterASCII ESC @Hexadecimal 1B 40Decimal 27 64Default: Character Pit

Chapter 6: Programming Information A794 Owner’s GuideDecember 199964Select Paper Sensors to Output Paper End SignalsASCII ESC c 3 nHexadecimal 1B 63 3

Chapter 1: About the Printer A794 Owner’s GuideDecember 19992Description of PrinterThe A794 thermal receipt printer is extremely fast, quiet, and very

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 65Select Sensors to Stop PrintingASCII ESC c 4 nHexadecimal 1B 63 34 nDecimal 27 99

Chapter 6: Programming Information A794 Owner’s GuideDecember 199966Generate Pulse to Open Cash DrawerASCII ESC p n p1 p2Hexadecimal 1B 70 n p1 p2Dec

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 67Print Test FormASCII AX tHexadecimal 1F 74Decimal 31 116Prints the current print

Chapter 6: Programming Information A794 Owner’s GuideDecember 199968Vertical Positioning and Print CommandsThe vertical positioning and print commands

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 69Feed n Dot RowsASCII NAK nHexadecimal 15 nDecimal 21 nValue of n: n/203 inchRange

Chapter 6: Programming Information A794 Owner’s GuideDecember 199970PrintASCII ETBHexadecimal 17Decimal 23Prints one line from the buffer and feeds pa

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 71Print and Feed PaperASCII ESC J nHexadecimal 1B 4A nDecimal 27 74 nValue of n: n/

Chapter 6: Programming Information A794 Owner’s GuideDecember 199972Horizontal Positioning CommandsThe horizontal positioning commands control the hor

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 73Set Absolute Starting PositionASCII ESC $ nL nHHexadecimal 1B 24 nL nHDecimal 27

Chapter 6: Programming Information A794 Owner’s GuideDecember 199974Set Horizontal Tab PositionsASCII ESC D [n]…k NULHexadecimal 1B 44 [n]…k 00Decimal

A794 Owner’s Guide Chapter 1: About the PrinterDecember 1999 3Models AvailableThere are several models of the printer depending on the communication i

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 75Set Relative Print PositionASCII ESC \ n1 n2Hexadecimal 1B 5C n1 n2Decimal 27 92

Chapter 6: Programming Information A794 Owner’s GuideDecember 199976Compatibility Information (A794 receipt vs. A793 receipt)There is a difference in

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 77Set Left MarginASCII GS L nL nHHexadecimal 1D 4C nL nHDecimal 29 76 nL nHRange of

Chapter 6: Programming Information A794 Owner’s GuideDecember 199978Set Printing Area WidthASCII GS W nL nHHexadecimal 1D 57 nL nHDecimal 29 87 nL nHR

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 79Print Characteristics CommandsThese commands control what the printed information

Chapter 6: Programming Information A794 Owner’s GuideDecember 199980Select 90 Degree Counter-Clockwise Rotated PrintASCII ESC DC2Hexadecimal 1B 12Deci

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 81Set Right-Side Character SpacingASCII ESC SP nHexadecimal 1B 20 nDecimal 27 32 nR

Chapter 6: Programming Information A794 Owner’s GuideDecember 199982Select Print ModeASCII ESC ! nHexadecimal 1B 21 nDecimal 27 33 nValue of n: Pitch

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 83Select or Cancel User-Defined Character SetASCII ESC % nHexadecimal 1B 25 nDecima

Chapter 6: Programming Information A794 Owner’s GuideDecember 199984Top of CharacterdnMSBLSB d1 d2 d3 d4 d5 dnDefines and enters downloaded characters

Chapter 1: About the Printer A794 Owner’s GuideDecember 19994FeaturesInterfacesRS-232C, ParallelMemory/Firmware512K Flash Memory, History EEROM, 4K Bu

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 85Copy Character Set from ROM to RAMASCII ESC : 0 0 0Hexadecimal 1B 3A 30 30 30Deci

Chapter 6: Programming Information A794 Owner’s GuideDecember 199986Select or Cancel Emphasized ModeASCII ESC E nHexadecimal 1B 45 nDecimal 27 69 nVal

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 87Select or Cancel Italic PrintASCII ESC I nHexadecimal 1B 49 nDecimal 27 73 nValue

Chapter 6: Programming Information A794 Owner’s GuideDecember 199988Select or Cancel 90 Degree Clockwise Rotated PrintASCII ESC V nHexadecimal 1B 56 n

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 89Character Width SelectionHex Decimal Width00 0 1 (normal)10 16 2 (two times width

Chapter 6: Programming Information A794 Owner’s GuideDecember 199990Select Or Cancel White/Black Reverse Print ModeASCII GS B nHexadecimal 1D 42 nDeci

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 91Select Superscript or Subscript ModesASCII AX ENQ nHexadecimal 1F 05 nDecimal 31

Chapter 6: Programming Information A794 Owner’s GuideDecember 199992Graphics CommandsThese commands are used to enter and print graphics data and are

A794 Owner’s Guide Chapter 6: Programming InformationDecember 1999 93Download BMP LogoASCII: ESC (+*.BMP file)Hexadecimal: 1B (+*.BMP file)Decimal: 27

Chapter 6: Programming Information A794 Owner’s GuideDecember 199994Select Bit Image ModeASCII ESC * m n1 n2 d1 ... dnHexadecimal 1B 2A m n1 n2 d1 ...