Printer Function Commands, Clear Printer | Epson A794-D100 specs

A794 Owner’s Guide

Chapter 6: Programming Information

Printer Function Commands

The printer function commands control the following basic printer functions and are described in order of their hexadecimal codes:

♦Printing

♦Feeding the paper

♦Resetting the printer

♦Cutting the paper

♦Opening the cash drawers

♦Defining the print area

Clear Printer

Clears the print line buffer without printing and sets the printer to the following condition:

♦Double-Wide command (12) is canceled

♦Line Spacing, Pitch, and User-Defined Character Sets are maintained at current selections (RAM is not affected)

♦Single-Wide, Single-High, Non-Rotated, and Left-Aligned characters are set

♦Printer is restarted and error status is cleared in a fault condition

♦Printing position is set to column one

♦Knife is homed

ASCII DLE

Hexadecimal 10

Decimal 16

Exceptions

In printers with the Parallel interface, this command also returns paper exhaust to the paper status line if an alternate status has been requested.

Perform Full Knife Cut

Cuts the receipt. Use either Hex 19 or Hex 1B 69.

There are two codes for this command. Both codes perform the same function.

ASCII	EM	ESC i
Hexadecimal	19	1B 69
Decimal	25	27 105

Exceptions

The full cut is replaced by a partial cut in the Axiohm A793 emulation.

March 1999

47

Image 53

Epson A794-D100 manual Printer Function Commands, Clear Printer, Perform Full Knife Cut, Hexadecimal Decimal Exceptions

Contents

Owners Guide Page Disclaimer Legal Notices Power Supply Contents Programming Information Communication Interface Description of Printer Models Available InstallationsFeatures Options Description of Printer Communication Interfaces Models AvailableModel Identification Setting up the printer Installations On a Flat Surface Vertically see note Features Options Printer Controls Changing Paper Testing the Printer Using the Printer Paper Feed Button Reset ButtonPrinter Controls Tone Changing Paper A794 Owner’s Guide Paper jams Troubleshooting the Printer Testing the Printer Poorly printed test printout Troubleshooting the Printer Printer Tone and Green LED Troubleshooting the Printer Printer Does Not Work Printing Problems Ordering Miscellaneous Supplies Ordering 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 Character Sets Paper Specifications Print ZonesCharacters Print Modes CharactersSize Standard Print Zones for 80 mm Paper Paper SpecificationsPrint Zones Print Zones for 82.5 mm Paper Code Character Sets Code Code Code Code Code Code Code RS-232C Interface Communication Overview Using DOS to Send Commands Sending CommandsUsing Basic to Send Commands Communication Overview Print Speed and Timing RS-232C Interface DTR/DSR Protocol XON/XOFF Protocol Communication Connectors RS-232C Technical SpecificationsPower Connector Pin DB-9 Connector Pin DB-25 Connector RS-232C Settings Cash Drawer Connector Parallel Interface Ieee Bi-directional Parallel Connector Communication Interface Programming Information List of Commands Comparisons Command Descriptions Programming Information List of Commands 26 s c1 c2 n1 d1...nn dn NL nH 1D 2A n1 n2 d1...dn Comparisons Command Conventions Command Descriptions Clear Printer Printer Function CommandsPerform Full Knife Cut Hexadecimal Decimal Exceptions Generate Tone Perform Partial Knife CutHexadecimal Decimal Formulas Value of n Select Print Mode Initialize Printer Hexadecimal Decimal DefaultSelect Peripheral Device for Multi-Drop Range of n Select Paper Sensors to Output Paper End SignalsDefault of n Exceptions Select Sensors to Stop Printing Enable or Disable Panel Button Generate Pulse to Open Cash Drawer Read from Non-Volatile MemoryRange of k Value of p1 Write to Non-Volatile Memory Nvram Select Cut Mode and Cut PaperValue of n1 Value of n2 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 Column Print and Feed Paper Set Line Spacing Print and Feed n Lines Set Right-Side Character Spacing Horizontal Positioning CommandsHorizontal Tab Set Absolute Starting Position Set Horizontal Tab Positions Value of k Default Set Relative Print Position Compatibility Information A794 receipt vs. A793 receipt Select Justification Range of nH Set Left MarginRange of nL GS P x y Set Horizontal and Vertical Minimum Motion Units Set Printing Area Width Select Single-Wide Characters Print Characteristics CommandsSelect Double-Wide Characters Hexadecimal Decimal Related Information Select 90 Degree Counter-Clockwise Rotated PrintSelect Pitch Column Width Select Character Set Values and Ranges Define User-Defined Character Set Select or Cancel Underline Mode ESC 0 0 Cancel User-Defined CharacterCopy Character Set from ROM to RAM Select or Cancel Double Strike Select or Cancel Emphasized Mode Select Character Code Table Select or Cancel Italic Print Select International Character Set Select or Cancel 90 Degree Clockwise Rotated PrintSelect or Cancel Upside-Down Print Mode 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 CommandsDownload 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 Ranges 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 Printer Status Commands Transmit Peripheral Device Status RS-232C printers only Request Alternate Status parallel printers only Hexadecimal Decimal Values Transmit Paper Sensor Status Hexadecimal 1D 49 n Decimal Transmit Printer ID Values of n Transmit Printer ID, Remote Diagnostics Extension 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 AX t Send Printer Software VersionPrint Test Form Rules for Using Real Time Commands Real Time Commands Moving Data through the Buffer Busy Line and Fault Conditions Recognizing Data from the Printer Real Time Request to Printer Related Information = Transmit Printer Status Real Time Status Transmission = Transmit RS-232C Busy Status = Transmit Error Status = Transmit Receipt Paper Status Hexadecimal Decimal Value of Byte Real Time Printer Status Transmission Select Pitch of HRI Characters Bar Code CommandsSelect Printing Position of HRI Characters Print Bar Code Select Bar Code Height UPC-A Select Bar Code Width Default Formulas Print and Return to Standard Mode Mode CommandsCancel Print Data in Page Mode Hexadecimal 0C Decimal Exceptions Select Page Mode Print Data in Page ModeHexadecimal 1B 0C Decimal Exceptions Hexadecimal 1B 4C Decimal Exceptions Ascii ESC S Select Standard Mode Default Exceptions Select Print Direction in Page Mode 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 Hexadecimal 1D 3A Decimal Formulas Macro CommandsSelect or Cancel Macro Definition Value of t Execute MacroValue of r Printer operation Flash Download Commands Return Boot Sector Firmware Part Number Switch to Flash Download ModeReturn Segment Number Status of Flash Memory ESC Select Flash Memory Sector to Download Return Boot Sector CRCGet Firmware CRC Range of n Exceptions Erase Selected Flash Sector Erase All Flash Contents Except Boot SectorReturn Main Program Flash CRC Ch * 256 + cl Ffff hexadecimal Download to Active Flash Sector March 127 Erase User Flash Sector Reset Firmware Basic Index 130 March March 131 132 March