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A794-D100
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Communication Interface
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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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Chapter 5: Communication Interface
A794 Owner’s Guide
40
March 1999
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Contents
Owners Guide
Page
Legal Notices
Disclaimer
Power Supply
Contents
Communication Interface
Programming Information
Features Options
Installations
Description of Printer Models Available
Description of Printer
Model Identification
Models Available
Communication 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 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
Troubleshooting the Printer
Printer Tone and Green LED
Printing Problems
Printer Does Not Work
Ordering Thermal Paper
Ordering Miscellaneous Supplies
Ordering Thermal Paper
Thermal Paper Specifications
How to Order
Manufacturers
Ordering Miscellaneous Supplies
Ordering Power Supply and Power Cord
Ordering Cash Drawers
Ordering Communication Cables
Wall-Mount Kit
Characters
Paper Specifications Print Zones
Character Sets
Size
Characters
Print Modes
Standard
Print Zones
Paper Specifications
Print 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
Using Basic to Send Commands
Sending Commands
Using DOS to Send Commands
Communication Overview
RS-232C Interface
Print Speed and Timing
XON/XOFF Protocol
DTR/DSR Protocol
Power Connector
RS-232C Technical Specifications
Communication Connectors
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
Perform Full Knife Cut
Printer Function Commands
Clear Printer
Hexadecimal Decimal Exceptions
Hexadecimal
Perform Partial Knife Cut
Generate Tone
Decimal Formulas
Select Print Mode
Value of n
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
Enable or Disable Panel Button
Select Sensors to Stop Printing
Range of k
Read from Non-Volatile Memory
Generate Pulse to Open Cash Drawer
Value of p1
Value of n1
Select Cut Mode and Cut Paper
Write to Non-Volatile Memory Nvram
Value of n2
Activate Carriage Return
Vertical Positioning and Print Commands
Print and Feed One Line
Feed n Print Lines
Feed n Dot Rows
Range of n Default
Add n Extra Dot Rows
Set Column
Print
Set Line Spacing to 1/6 Inch
Set Line Spacing
Print and Feed Paper
Print and Feed n Lines
Horizontal Tab
Horizontal Positioning Commands
Set 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 Margin
Range of nH
Set Horizontal and Vertical Minimum Motion Units
GS P x y
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
Define User-Defined Character Set
Values and Ranges
Select or Cancel Underline Mode
Copy Character Set from ROM to RAM
Cancel User-Defined Character
ESC 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 Print
Select 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
Download BMP Logo
Graphics Commands
Print Raster Graphics
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
Hexadecimal 1D 2F m Decimal
Print Downloaded Bit Image
Convert 6 Dots/mm Bitmap to 8 Dots/mm Bitmap
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 Version
AX 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 Commands
Select Pitch of HRI Characters
Select Bar Code Height
Print Bar Code
UPC-A
Default Formulas
Select Bar Code Width
Cancel Print Data in Page Mode
Mode Commands
Print and Return to Standard Mode
Hexadecimal 0C Decimal Exceptions
Hexadecimal 1B 0C Decimal Exceptions
Print Data in Page Mode
Select Page Mode
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 Commands
Hexadecimal 1D 3A Decimal Formulas
Value of r
Execute Macro
Value of t
Flash Download Commands
Printer operation
Return Segment Number Status of Flash Memory
Switch to Flash Download Mode
Return Boot Sector Firmware Part Number
ESC
Get Firmware CRC
Return Boot Sector CRC
Select Flash Memory Sector to Download
Range of n Exceptions
Return Main Program Flash CRC
Erase All Flash Contents Except Boot Sector
Erase 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
