Features, On a Flat Surface Vertically see note | Epson A794-D100

A794 Owner’s Guide

Chapter 1: About the Printer

On a Flat Surface Vertically (see note)

Note: Clearance must be provided for the cords at the rear of the printer.

Features

Interfaces	RS-232C, Parallel

Memory/Firmware	512K Flash Memory, History EEROM, 4K Buffer (see “Options”
	for additional memory)
Resident Character	PC Code Page 437 (US), PC Code Page 850 (Multilingual), PC
Sets	Code Page 852; Code Pages 865, 858, 860, 863, and 866
	Code Page 852; Code Pages 865, 858, 860, 863, and 866
Integrated Bar Codes	Code 39, UPC-A, UPC-E, JAN8 (EAN), JAN13 (EAN), Interleaved
	2 of 5, Codabar, Code 128, EAN 128, PDF-417 (two-dimensional)
Print	Host-selectable 44 or 56 columns of print on 80 mm wide thermal
	paper
Print Resolution	8 dots/mm

Speed	Up to 130 mm/second throughput

Human Interface	Speaker for software-generated tone, drop-in paper loading,
	configuration menu for easy configuration
Cash Drawer Driver	Connector for one or two cash drawers (use Y cord for two
	drawers)

March 1999

5

Image 11

Epson A794-D100 manual Features, On a Flat Surface Vertically see note

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 Manufacturers Thermal Paper SpecificationsHow to Order Ordering Thermal Paper Ordering Cash Drawers Ordering Power Supply and Power CordOrdering Miscellaneous Supplies Wall-Mount Kit Ordering Communication Cables Character Sets Paper Specifications Print ZonesCharacters Standard CharactersPrint Modes Size 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 Communication Overview Sending CommandsUsing DOS to Send Commands Using Basic to Send Commands Print Speed and Timing RS-232C Interface DTR/DSR Protocol XON/XOFF Protocol Pin DB-9 Connector Pin DB-25 Connector RS-232C Technical SpecificationsCommunication Connectors Power 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 Hexadecimal Decimal Exceptions Printer Function CommandsClear Printer Perform Full Knife Cut Decimal Formulas Perform Partial Knife CutGenerate Tone Hexadecimal 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 Value of p1 Read from Non-Volatile MemoryGenerate Pulse to Open Cash Drawer Range of k Value of n2 Select Cut Mode and Cut PaperWrite to Non-Volatile Memory Nvram Value of n1 Feed n Print Lines Vertical Positioning and Print CommandsPrint and Feed One Line Activate Carriage Return 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 Hexadecimal Decimal Value Graphics CommandsPrint Raster Graphics Download BMP Logo = 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 Value and Range of m Print Downloaded Bit ImageConvert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap Hexadecimal 1D 2F m Decimal 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 Hexadecimal 0C Decimal Exceptions Mode CommandsPrint and Return to Standard Mode Cancel Print Data in Page Mode Hexadecimal 1B 4C Decimal Exceptions Print Data in Page ModeSelect Page Mode Hexadecimal 1B 0C 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 ESC Switch to Flash Download ModeReturn Boot Sector Firmware Part Number Return Segment Number Status of Flash Memory Range of n Exceptions Return Boot Sector CRCSelect Flash Memory Sector to Download Get Firmware CRC 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