Select or Cancel Underline Mode | M-S Cash Drawer A794 guide

Chapter 6: Programming Information

A794 Owner’s Guide

Top of Character

d1 d4

MSB

d2 d5

dn

d3					dn

LSB

Defines and enters downloaded characters into RAM. The command may be used to overwrite single characters. User-defined characters are available until power is turned off or the Initialize Printer command (1B 40) is received.

Any invalid byte (s, c1, c2, n1) aborts the command.

Related Information

See 1D 22 n (Select Memory Type) to save User-Defined Characters

Select or Cancel Underline Mode

ASCII	ESC - n
Hexadecimal	1B 2D n
Decimal	27 45 n
Value of n:	0, 48	= Cancel underline mode
	1, 49	= Select underline mode
	2, 50 = Select double thickness underline mode
Default:	0 (Cancel underline mode)

Turns underline mode on or off. Underlines cannot be printed for spaces set by the Horizontal Tab, Set Absolute Start Position, or Set Relative Print Position commands.

This command and the Select Print Mode(s) command (1B 21) turn underline on and off in the same way.

Exceptions

This command is ignored if n is out of the specified range.

Related Information

In A793 Emulation, this command is unrecognized and the parameter n is put into the print buffer.

84	December 1999

Image 89

M-S Cash Drawer A794 manual Select or Cancel Underline Mode

Contents

Owners Guide Disclaimer Legal Notices Power Supply Contents Programming Information Communication Interface Model Identification Communication Interfaces Features OptionsDescription of Printer Models Available Description of Printer Communication Interfaces Models AvailableModel Identification Options Features Connect the Cables Unpack the PrinterChoose a Location Unpack the Printer A794 Thermal Receipt Printer Setup Guide Remove the Starter Paper Roll Supports Choose a Location Setting up the printerOn a Flat Surface On a Wall Communication Cable Connect the Cables Cash Drawer Cables Power Supply Cable Printer Controls Reset ButtonPaper Feed Button LED Tone To Load the Paper Loading Receipt Paper Using the Printer Paper jams Troubleshooting the Printer To start the test Configuring the Printer Poorly printed test printout Troubleshooting the Printer Printer Tone and Green LED Troubleshooting the Printer Changing this setting Printing ProblemsPrinter Does Not Function USE Caution when This page intentionally left blank Ordering Miscellaneous Supplies Thermal Paper Specifications Manufacturers How to OrderOrdering Thermal Paper How to Order Thermal Paper SpecificationsOrdering Thermal Paper Manufacturers Ordering Cash Drawers Ordering Power Supply and Power CordOrdering Miscellaneous Supplies Wall-Mount Kit Ordering Communication Cables Characters Paper Specifications Print ZonesPrint Modes Size Print Zones for 80 mm Paper Print Zones for 82.5 mm Paper Print Modes CharactersSize Standard Print Zones for 80 mm Paper Paper SpecificationsPrint Zones Print Specifications Print Zones for 82.5 mm Paper To change the Print Density Print Density and Density of Receipt Print Lines Duty Cycle Restrictions Printing Solid Blocks Code Character Sets Code Code Code Code Code Code Code Code Communication Overview Interface Sending CommandsRS-232C Interface Parallel Interface Using DOS to Send Commands Sending CommandsUsing Basic to Send Commands Communication Overview Print Speed and Timing RS-232C Interface XON/XOFF Protocol Communication Connectors RS-232C Technical SpecificationsPin DB-9 Connector Pin DB-25 Connector DTR/DSR Protocol Cash Drawer Connector Power Connector XON/XOFF, DTR/DSR RS-232C Settings Parallel Interface Ieee Bi-directional Parallel Connector By Command Code By Function Command Conventions List of Commands and LocationsComparisons Command Descriptions Ascii Command Conventions By Command Code List of Commands and Location 1B 49 n Select or Cancel Italic Print 1B 2D n Select or Cancel Underline Mode1B 4C Select Page Mode 1B 54 n Select Print Direction in Page Mode 1D 42 n Select or Cancel White/Black Reverse Print Mode 1D 3A Select or Cancel Macro Definition1D 21 n Select Character Size 1D 22 55 n1 n2 Flash Memory User Sectors Allocation 04 n Convert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap Print Bar Code05 n Select Superscript or Subscript Modes Print Test Form Vertical Positioning and Print Commands Printer Function CommandsBy Function Perform Partial Knife Cut Print Characteristic Commands Horizontal Positioning Commands1B 74 n Select International Character Set 1F 05 n Select Superscript or Subscript Modes 1F 04 n Convert 6 Dots/mm Bitmap to 8 Dots/mm 100 Graphics CommandsStatus Commands Mode Commands Barcode CommandsMacro Commands User Data Storage Commands Flash Download Commands 24 n1 n2 Comparisons Printer Function Commands Command DescriptionsClear Printer Perform Full Knife Cut Generate Tone Perform Partial Knife CutSelect Peripheral Device for Multi-Drop Ascii ESC BEL Initialize Printer Hexadecimal Decimal Default Range of n Select Paper Sensors to Output Paper End SignalsDefault of n Select Sensors to Stop Printing Enable or Disable Panel Button Generate Pulse to Open Cash Drawer Select Cut Mode and Cut PaperValue of p1 Value of p2 AX t Print Test Form Print and Feed One Line Vertical Positioning and Print CommandsActivate Carriage Return Feed n Print Lines Add n Extra Dot Rows Range of n DefaultFeed n Dot Rows Set Line Spacing to 1/6 Inch PrintSet Line Spacing Ascii ETB Print and Feed n Lines Print and Feed PaperSet Horizontal and Vertical Minimum Motion Units GS P x y Horizontal Tab Horizontal Positioning CommandsSet Column Ascii HT Compatibility Information A794 receipt vs. A793 receipt Set Absolute Starting Position Set Horizontal Tab Positions Value of k Default To move to the left Set Relative Print Position Select Justification GS L nL nH Set Left Margin Set Printing Area Width Select Double-Wide Characters Print Characteristics CommandsSelect Single-Wide Characters Ascii DC2 Ascii ESC DC2 Select 90 Degree Counter-Clockwise Rotated PrintSelect Pitch Column Width Set Right-Side Character Spacing Select Print Mode Define User-Defined Character Set Select or Cancel User-Defined Character SetException Values and Ranges Select or Cancel Underline Mode Copy Character Set from ROM to RAM Cancel User-Defined CharacterESC 0 0 ESC ? n Select or Cancel Double Strike Select or Cancel Emphasized Mode Select or Cancel Italic Print Select Character Size Select or Cancel 90 Degree Clockwise Rotated PrintSelect or Cancel Upside Down Print Mode Normal Select or Cancel Smoothing Mode Select Or Cancel White/Black Reverse Print Mode Summary of Rotated Printing Select Superscript or Subscript Modes Print Raster Graphics Graphics Commands Download BMP Logo Select Bit Image Mode Dot Single-Density Mode Select Single-Density Graphics Print Advanced Raster GraghicsValue of r Data bytes Select Double-Density Graphics Select the Current Logo Define Downloaded Bit Image Convert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap Print Downloaded Bit ImageHexadecimal 1D 2F m Decimal Value and Range of m Batch Mode Status CommandsStatus Command Introduction ESC u Transmit Peripheral Device Status RS-232C printers onlyHexadecimal 1B 75 Decimal 27 117 Value of returned byte Hexadecimal 1B 75 n Decimal Hexadecimal Decimal Values Transmit Paper Sensor Status Transmit Printer ID Values of n Transmit Printer ID, Remote Diagnostics Extension Programming Information A794 Owner’s Guide December 107 Undefined. Fixed to off Send Printer Software Version Alternate Implementation Real Time CommandsPreferred Implementation Moving Data through the Buffer Rules for Using Real Time Commands Related Information = Transmit Printer Status Busy Line and Fault ConditionsReal Time Status Transmission = Transmit RS-232C Busy Status = Transmit Error Status = Transmit Receipt Paper Status Real Time Request to Printer Value of Byte Real Time Printer Status TransmissionAscii GS ENQ Auto Status Back Select or Cancel Automatic Status Back ASB 118 December December 119 Recognizing Data from the Printer Select Printing Position of HRI Characters Bar Code CommandsSelect Pitch of HRI Characters Select Bar Code Height GS k m n d1…dn 1D 6B m n d1…dn 29 107 m n d1…dn Print Bar Code CODE39 Select Bar Code Width Print and Return to Standard Mode Mode CommandsCancel Print Data in Page Mode Ascii FF Select Page Mode Print Data in Page ModeAscii ESC FF Ascii ESC L Ascii ESC S Select Standard ModeSelect Print Direction in Page Mode N1-4 = N5 = N6 = N7 = N8 = Set Print Area in Page Mode Set Absolute Vertical Print Position in Page Mode Set Relative Vertical Print Position in Page Mode Hexadecimal 1D 3A Decimal Macro CommandsSelect or Cancel Macro Definition Value of t Execute Macro Write to User Data Storage User Data Storage CommandsRead from User Data Storage Read from Non-Volatile Memory December 133 GS U n1 n Flash Memory User Sectors AllocationErase User Flash Sector Switch to Flash Download Mode Flash Download CommandsPrinter operation ESC Return Segment Number Status of Flash Memory Return Boot Sector Firmware Part NumberSelect Flash Memory Sector to Download Get Firmware CRC Return Microprocessor CRC Erase All Flash Contents Except Boot SectorReturn Main Program Flash CRC Erase Selected Flash Sector Download to Active Flash Sector Reset FirmwareAscii GS Space 1D FF Basic Index DOS December 141