Select Single-Density Graphics | Epson A794-D100 specs

Chapter 6: Programming Information

A794 Owner’s Guide

Select Bit Image Mode (continued)

24-Dot Single-Density Mode

Top of Bit Image

d1 d4 d7

d2 d5

d3 d6

MSB

dn

dn

LSB

Select Single-Density Graphics

Enters one line of 8-dot single-density graphics into the print buffer. Any print command is required to print the line, after which the printer returns to normal processing mode. Single-density mode allows 0-288 dot columns. The number of bytes sent is represented by the formulas in the table.

Each bit corresponds to two horizontal dots. Compare to Set Bit Image Mode (1B 2A, m=0) earlier in this document.

ASCII	ESC K n1 n2 d1 ... dn
Hexadecimal	1B 4B n1 n2 d1 ... dn
Decimal	27 75 n1 n2 d1 ... dn

Value of n

Value of n (8-Dot	Value of n (24-Dot Single
Single Density Mode)	Density Mode)	Value of d
n1 + (256 x n2)	3 x [n1 + (256 x n2)]	Number of Bytes of Data
		(Printed Down, Then Across)

Formulas

See the above table.

82	March 1999

Image 88

Epson A794-D100 manual Select Single-Density Graphics

Contents

Owners Guide Page Legal Notices Disclaimer Power Supply Contents Communication Interface Programming Information Features Options InstallationsDescription of Printer Models Available Description of Printer Model Identification Models AvailableCommunication Interfaces Installations Setting up the printer Features On a Flat Surface Vertically see note Options Using the Printer Printer Controls Changing Paper Testing the Printer Printer Controls Reset ButtonPaper Feed Button Tone Changing Paper A794 Owner’s Guide Paper jams Troubleshooting the Printer Testing the Printer Poorly printed test printout Troubleshooting the Printer Troubleshooting the Printer Printer Tone and Green LED Printing Problems Printer Does Not Work Ordering Thermal Paper Ordering Miscellaneous Supplies Thermal Paper Specifications How to OrderOrdering Thermal Paper Manufacturers Ordering Miscellaneous Supplies Ordering Power Supply and Power CordOrdering Cash Drawers Ordering Communication Cables Wall-Mount Kit Characters Paper Specifications Print ZonesCharacter Sets Characters Print ModesSize Standard Print Zones Paper SpecificationsPrint Zones for 80 mm Paper Print Zones for 82.5 mm Paper Character Sets Code Code Code Code Code Code Code Code Communication Overview RS-232C Interface Sending Commands Using DOS to Send CommandsUsing Basic to Send Commands Communication Overview RS-232C Interface Print Speed and Timing XON/XOFF Protocol DTR/DSR Protocol RS-232C Technical Specifications Communication ConnectorsPower Connector Pin DB-9 Connector Pin DB-25 Connector Cash Drawer Connector RS-232C Settings Ieee Bi-directional Parallel Connector Parallel Interface Communication Interface List of Commands Comparisons Command Descriptions Programming Information List of Commands Programming Information 26 s c1 c2 n1 d1...nn dn NL nH Comparisons 1D 2A n1 n2 d1...dn Command Descriptions Command Conventions Printer Function Commands Clear PrinterPerform Full Knife Cut Hexadecimal Decimal Exceptions Perform Partial Knife Cut Generate ToneHexadecimal Decimal Formulas Select Print Mode Value of n Select Peripheral Device for Multi-Drop Hexadecimal Decimal DefaultInitialize Printer Default of n Exceptions Select Paper Sensors to Output Paper End SignalsRange of n Enable or Disable Panel Button Select Sensors to Stop Printing Read from Non-Volatile Memory Generate Pulse to Open Cash DrawerRange of k Value of p1 Select Cut Mode and Cut Paper Write to Non-Volatile Memory NvramValue of n1 Value of n2 Vertical Positioning and Print Commands Print and Feed One LineActivate Carriage Return Feed n Print Lines Feed n Dot Rows Range of n DefaultAdd n Extra Dot Rows Set Column PrintSet Line Spacing to 1/6 Inch Set Line Spacing Print and Feed Paper Print and Feed n Lines Horizontal Tab Horizontal Positioning CommandsSet Right-Side Character Spacing Set Absolute Starting Position Value of k Default Set Horizontal Tab Positions Set Relative Print Position Select Justification Compatibility Information A794 receipt vs. A793 receipt Range of nL Set Left MarginRange of nH Set Horizontal and Vertical Minimum Motion Units GS P x y Set Printing Area Width Select Double-Wide Characters Print Characteristics CommandsSelect Single-Wide Characters Select Pitch Column Width Select 90 Degree Counter-Clockwise Rotated PrintHexadecimal Decimal Related Information Select Character Set Define User-Defined Character Set Values and Ranges Select or Cancel Underline Mode Copy Character Set from ROM to RAM Cancel User-Defined CharacterESC 0 0 Select or Cancel Emphasized Mode Select or Cancel Double Strike Select or Cancel Italic Print Select Character Code Table Select or Cancel Upside-Down Print Mode Select or Cancel 90 Degree Clockwise Rotated PrintSelect International Character Set 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 GraphicsDownload BMP Logo Hexadecimal Decimal Value = Number of dots to be moved from the beginning of the line Select Bit Image Mode Select Single-Density Graphics Select Double-Density Graphics Select the Current Logo Define Downloaded Bit Image Ranges Print Downloaded Bit Image Convert 6 Dots/mm Bitmap to 8 Dots/mm BitmapHexadecimal 1D 2F m Decimal Value and Range of m Printer Status Commands Request Alternate Status parallel printers only Transmit Peripheral Device Status RS-232C printers only Transmit Paper Sensor Status Hexadecimal Decimal Values Transmit Printer ID Hexadecimal 1D 49 n Decimal Transmit Printer ID, Remote Diagnostics Extension Values of n Programming Information A794 Owner’s Guide Select or Cancel Automatic Status Back ASB Default ASB disabled Exceptions Undefined Off Not used. Fixed to off Transmit Status When n is out of the specified range, the command is ignored Print Test Form Send Printer Software VersionAX t Real Time Commands Rules for Using Real Time Commands Busy Line and Fault Conditions Moving Data through the Buffer Recognizing Data from the Printer Real Time Request to Printer Real Time Status Transmission Related Information = Transmit Printer Status = Transmit Error Status = Transmit RS-232C Busy Status = Transmit Receipt Paper Status Real Time Printer Status Transmission Hexadecimal Decimal Value of Byte Select Printing Position of HRI Characters Bar Code CommandsSelect Pitch of HRI Characters Select Bar Code Height Print Bar Code UPC-A Default Formulas Select Bar Code Width Mode Commands Print and Return to Standard ModeCancel Print Data in Page Mode Hexadecimal 0C Decimal Exceptions Print Data in Page Mode Select Page ModeHexadecimal 1B 0C Decimal Exceptions Hexadecimal 1B 4C Decimal Exceptions Select Standard Mode Ascii ESC S Select Print Direction in Page Mode Default Exceptions Set Print Area in Page Mode Select Character Size 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 Formulas Value of r Execute MacroValue of t Flash Download Commands Printer operation Switch to Flash Download Mode Return Boot Sector Firmware Part NumberReturn Segment Number Status of Flash Memory ESC Return Boot Sector CRC Select Flash Memory Sector to DownloadGet Firmware CRC Range of n Exceptions Return Main Program Flash CRC Erase All Flash Contents Except Boot SectorErase Selected Flash Sector Download to Active Flash Sector Ch * 256 + cl Ffff hexadecimal March 127 Reset Firmware Erase User Flash Sector Index Basic 130 March March 131 132 March