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Epson
A794-D100
manual
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A794-D100
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Troubleshooting
Specs
Print Characteristics Commands
Install
Hexadecimal Decimal Default
Printing Problems
Reset Button
Setting up the printer
Sending Commands
Communication Connectors
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Contents
Owners Guide
Page
Disclaimer
Legal Notices
Power Supply
Contents
Programming Information
Communication Interface
Features Options
Installations
Description of Printer Models Available
Description of Printer
Model Identification
Models Available
Communication Interfaces
Setting up the printer
Installations
On a Flat Surface Vertically see note
Features
Options
Printer Controls Changing Paper Testing the Printer
Using the Printer
Printer Controls
Reset Button
Paper Feed Button
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 Specifications
How to Order
Ordering Thermal Paper
Ordering Miscellaneous Supplies
Ordering Power Supply and Power Cord
Ordering Cash Drawers
Wall-Mount Kit
Ordering Communication Cables
Characters
Paper Specifications Print Zones
Character Sets
Standard
Characters
Print Modes
Size
Print Zones
Paper Specifications
Print Zones for 80 mm Paper
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 Commands
Using 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 Specifications
Communication 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 Commands
Clear Printer
Perform Full Knife Cut
Decimal Formulas
Perform Partial Knife Cut
Generate Tone
Hexadecimal
Value of n
Select Print Mode
Select Peripheral Device for Multi-Drop
Hexadecimal Decimal Default
Initialize Printer
Default of n Exceptions
Select Paper Sensors to Output Paper End Signals
Range of n
Select Sensors to Stop Printing
Enable or Disable Panel Button
Value of p1
Read from Non-Volatile Memory
Generate Pulse to Open Cash Drawer
Range of k
Value of n2
Select Cut Mode and Cut Paper
Write to Non-Volatile Memory Nvram
Value of n1
Feed n Print Lines
Vertical Positioning and Print Commands
Print and Feed One Line
Activate Carriage Return
Feed n Dot Rows
Range of n Default
Add n Extra Dot Rows
Set Column
Print
Set Line Spacing to 1/6 Inch
Print and Feed Paper
Set Line Spacing
Print and Feed n Lines
Horizontal Tab
Horizontal Positioning Commands
Set Right-Side Character Spacing
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 nL
Set Left Margin
Range of nH
GS P x y
Set Horizontal and Vertical Minimum Motion Units
Set Printing Area Width
Select Double-Wide Characters
Print Characteristics Commands
Select Single-Wide Characters
Select Pitch Column Width
Select 90 Degree Counter-Clockwise Rotated Print
Hexadecimal Decimal Related Information
Select Character Set
Values and Ranges
Define User-Defined Character Set
Select or Cancel Underline Mode
Copy Character Set from ROM to RAM
Cancel User-Defined Character
ESC 0 0
Select or Cancel Double Strike
Select or Cancel Emphasized Mode
Select Character Code Table
Select or Cancel Italic Print
Select or Cancel Upside-Down Print Mode
Select or Cancel 90 Degree Clockwise Rotated Print
Select International Character Set
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 Commands
Print 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 Image
Convert 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
Print Test Form
Send Printer Software Version
AX t
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 Printing Position of HRI Characters
Bar Code Commands
Select Pitch of HRI Characters
Print Bar Code
Select Bar Code Height
UPC-A
Select Bar Code Width
Default Formulas
Hexadecimal 0C Decimal Exceptions
Mode Commands
Print and Return to Standard Mode
Cancel Print Data in Page Mode
Hexadecimal 1B 4C Decimal Exceptions
Print Data in Page Mode
Select 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
Select or Cancel Macro Definition
Macro Commands
Hexadecimal 1D 3A Decimal Formulas
Value of r
Execute Macro
Value of t
Printer operation
Flash Download Commands
ESC
Switch to Flash Download Mode
Return Boot Sector Firmware Part Number
Return Segment Number Status of Flash Memory
Range of n Exceptions
Return Boot Sector CRC
Select Flash Memory Sector to Download
Get Firmware CRC
Return Main Program Flash CRC
Erase All Flash Contents Except Boot Sector
Erase Selected Flash Sector
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
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