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M-S Cash Drawer A794 manual Set Left Margin, GS L nL nH

Models: A794

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A794 Owner’s GuideChapter 6: Programming Information

Set Left Margin

ASCII	GS L nL nH
Hexadecimal	1D 4C nL nH
Decimal	29 76 nL nH
Range of nL:	0-255
Range of nH:	0-255
Default:	576 dots (the maximum printable area)
Formulas

Sets the left margin of the printing area. The left margin is set to ((nH X 256) + nL) times horizontal motion unit) inches. The horizontal motion units are set by the Set Horizontal and Vertical Minimum Motion Units command (1D 50), described in this manual.

The width of the printing area is set by the Set Printing Area Width command (1D 57), which follows this command. See the Set Printing Area Width command in this document for a description of that command.

If the setting exceeds the printable area, the maximum value of the printable area is used. The maximum printable area is 576 dots. See the illustration.

To set the left margin to one inch at the default horizontal motion unit of 1/203 inches, send the four-byte string:

GS L 203 0

Or, to set the left margin to two inches at the default horizontal motion unit of 1/203 units per inch, send the four-byte string:

GS L 150 1

Where 2 inches = 406/203, and 406 = (1 X 256) + 150.

←⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Printable area 576 dots⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯→

←⎯Left margin⎯⎯⎯→

Exceptions:

←⎯⎯⎯Printing area width⎯⎯⎯⎯⎯→

The command is effective only at the beginning of a line. This Command is ignored if the line buffer is not empty, and only effects the receipt interface.

December 1999

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Image 82

M-S Cash Drawer A794 manual Set Left Margin, GS L nL nH

Contents

Owners Guide Legal Notices Disclaimer Power Supply Contents Communication Interface Programming Information Description of Printer Models Available Features OptionsModel Identification Communication Interfaces Description of Printer Model Identification Models AvailableCommunication Interfaces Features Options Choose a Location Unpack the PrinterConnect the Cables A794 Thermal Receipt Printer Setup Guide Unpack the Printer Remove the Starter Paper Roll Supports On a Flat Surface Setting up the printerChoose a Location On a Wall Connect the Cables Communication Cable Power Supply Cable Cash Drawer Cables Paper Feed Button Reset ButtonPrinter Controls LED Tone Loading Receipt Paper To Load the Paper Using the Printer Paper jams Troubleshooting the Printer Configuring the Printer To start the test Poorly printed test printout Troubleshooting the Printer Troubleshooting the Printer Printer Tone and Green LED Printer Does Not Function Printing ProblemsChanging this setting USE Caution when This page intentionally left blank Ordering Thermal Paper Thermal Paper Specifications Manufacturers How to OrderOrdering Miscellaneous Supplies Ordering Thermal Paper Thermal Paper SpecificationsHow to Order Manufacturers Ordering Miscellaneous Supplies Ordering Power Supply and Power CordOrdering Cash Drawers Ordering Communication Cables Wall-Mount Kit Print Modes Size Paper Specifications Print ZonesCharacters Print Zones for 80 mm Paper Print Zones for 82.5 mm Paper Size CharactersPrint Modes Standard Print Zones Paper SpecificationsPrint Zones for 80 mm Paper Print Specifications Print Zones for 82.5 mm Paper Print Density and Density of Receipt Print Lines To change the Print Density Duty Cycle Restrictions Printing Solid Blocks Character Sets Code Code Code Code Code Code Code Code Code RS-232C Interface Interface Sending CommandsCommunication Overview Parallel Interface Using Basic to Send Commands Sending CommandsUsing DOS to Send Commands Communication Overview RS-232C Interface Print Speed and Timing XON/XOFF Protocol Pin DB-9 Connector Pin DB-25 Connector RS-232C Technical SpecificationsCommunication Connectors DTR/DSR Protocol Power Connector Cash Drawer Connector RS-232C Settings XON/XOFF, DTR/DSR Ieee Bi-directional Parallel Connector Parallel Interface Comparisons Command Descriptions Command Conventions List of Commands and LocationsBy Command Code By Function Command Conventions Ascii List of Commands and Location By Command Code 1B 4C Select Page Mode 1B 2D n Select or Cancel Underline Mode1B 49 n Select or Cancel Italic Print 1B 54 n Select Print Direction in Page Mode 1D 21 n Select Character Size 1D 3A Select or Cancel Macro Definition1D 42 n Select or Cancel White/Black Reverse Print Mode 1D 22 55 n1 n2 Flash Memory User Sectors Allocation 05 n Select Superscript or Subscript Modes Print Bar Code04 n Convert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap Print Test Form By Function Printer Function CommandsVertical Positioning and Print Commands Perform Partial Knife Cut 1B 74 n Select International Character Set Horizontal Positioning CommandsPrint Characteristic Commands 1F 05 n Select Superscript or Subscript Modes Status Commands Graphics Commands1F 04 n Convert 6 Dots/mm Bitmap to 8 Dots/mm 100 Macro Commands Barcode CommandsMode Commands User Data Storage Commands Flash Download Commands Comparisons 24 n1 n2 Clear Printer Command DescriptionsPrinter Function Commands Perform Full Knife Cut Select Peripheral Device for Multi-Drop Perform Partial Knife CutGenerate Tone Ascii ESC BEL Hexadecimal Decimal Default Initialize Printer Default of n Select Paper Sensors to Output Paper End SignalsRange of n Enable or Disable Panel Button Select Sensors to Stop Printing Value of p1 Select Cut Mode and Cut PaperGenerate Pulse to Open Cash Drawer Value of p2 Print Test Form AX t Activate Carriage Return Vertical Positioning and Print CommandsPrint and Feed One Line Feed n Print Lines Feed n Dot Rows Range of n DefaultAdd n Extra Dot Rows Set Line Spacing PrintSet Line Spacing to 1/6 Inch Ascii ETB Set Horizontal and Vertical Minimum Motion Units Print and Feed PaperPrint and Feed n Lines GS P x y Set Column Horizontal Positioning CommandsHorizontal Tab Ascii HT Set Absolute Starting Position Compatibility Information A794 receipt vs. A793 receipt Value of k Default Set Horizontal Tab Positions Set Relative Print Position To move to the left Select Justification Set Left Margin GS L nL nH Set Printing Area Width Select Single-Wide Characters Print Characteristics CommandsSelect Double-Wide Characters Ascii DC2 Select Pitch Column Width Select 90 Degree Counter-Clockwise Rotated PrintAscii ESC DC2 Set Right-Side Character Spacing Select Print Mode Exception Select or Cancel User-Defined Character SetDefine User-Defined Character Set Values and Ranges Select or Cancel Underline Mode ESC 0 0 Cancel User-Defined CharacterCopy Character Set from ROM to RAM ESC ? n Select or Cancel Emphasized Mode Select or Cancel Double Strike Select or Cancel Italic Print Select or Cancel Upside Down Print Mode Select or Cancel 90 Degree Clockwise Rotated PrintSelect Character Size Normal Select Or Cancel White/Black Reverse Print Mode Select or Cancel Smoothing Mode Select Superscript or Subscript Modes Summary of Rotated Printing Graphics Commands Print Raster Graphics Download BMP Logo Select Bit Image Mode Dot Single-Density Mode Value of r Print Advanced Raster GraghicsSelect Single-Density Graphics Data bytes Select Double-Density Graphics Select the Current Logo Define Downloaded Bit Image Hexadecimal 1D 2F m Decimal Print Downloaded Bit ImageConvert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap Value and Range of m Status Command Introduction Status CommandsBatch Mode Hexadecimal 1B 75 Decimal 27 117 Value of returned byte Transmit Peripheral Device Status RS-232C printers onlyESC u Hexadecimal 1B 75 n Decimal Transmit Paper Sensor Status Hexadecimal Decimal Values Transmit Printer ID Transmit Printer ID, Remote Diagnostics Extension Values of n Programming Information A794 Owner’s Guide December 107 Undefined. Fixed to off Send Printer Software Version Preferred Implementation Real Time CommandsAlternate Implementation Rules for Using Real Time Commands Moving Data through the Buffer Real Time Status Transmission Busy Line and Fault ConditionsRelated Information = Transmit Printer Status = Transmit Error Status = Transmit RS-232C Busy Status = Transmit Receipt Paper Status Real Time Request to Printer Ascii GS ENQ Real Time Printer Status TransmissionValue of Byte Select or Cancel Automatic Status Back ASB Auto Status Back 118 December December 119 Recognizing Data from the Printer Select Pitch of HRI Characters Bar Code CommandsSelect Printing Position of HRI Characters Select Bar Code Height Print Bar Code GS k m n d1…dn 1D 6B m n d1…dn 29 107 m n d1…dn Select Bar Code Width CODE39 Cancel Print Data in Page Mode Mode CommandsPrint and Return to Standard Mode Ascii FF Ascii ESC FF Print Data in Page ModeSelect Page Mode Ascii ESC L Select Print Direction in Page Mode Select Standard ModeAscii ESC S Set Print Area in Page Mode N1-4 = N5 = N6 = N7 = N8 = Set Absolute Vertical Print Position in Page Mode Set Relative Vertical Print Position in Page Mode Select or Cancel Macro Definition Macro CommandsHexadecimal 1D 3A Decimal Execute Macro Value of t Read from User Data Storage User Data Storage CommandsWrite to User Data Storage Read from Non-Volatile Memory December 133 Erase User Flash Sector Flash Memory User Sectors AllocationGS U n1 n Printer operation Flash Download CommandsSwitch to Flash Download Mode ESC Select Flash Memory Sector to Download Return Boot Sector Firmware Part NumberReturn Segment Number Status of Flash Memory Get Firmware CRC Return Main Program Flash CRC Erase All Flash Contents Except Boot SectorReturn Microprocessor CRC Erase Selected Flash Sector Ascii GS Space Reset FirmwareDownload to Active Flash Sector 1D FF Index Basic DOS December 141