Axiohm A794 User manual

A794 Thermal Receipt Printer
Owner's Guide
A794-D100
TM

December 1999 i
Legal Notices
Disclaimer
Information in this document is subject to change without notice. Consult your Axiohm sales
representative for information that is applicable and current. Axiohm reserves the right to
improve products as new technology, components, software, and firmware become available.
No part of this document may be reproduced or transmitted in any form or by any means,
electronic or mechanical, for any purpose without the express written permission of Axiohm.
Copyright
Copyright © 1999 by AXIOHM
Ithaca, New York USA
All rights reserved
Printed in USA
Confidential, Unpublished
Property of AXIOHM
Trademarks
AXIOHM is a trademark. Other trademarks and registered trademarks are the property of their
respective holders.
Federal Communications Commission (FCC)
Radio Frequency Interference Statement
Warning
Changes or modifications to this unit not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Note
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
Information to the User
This equipment must be installed and used in strict accordance with the manufacturer's
instructions. However, there is no guarantee that interference to radio communications will not
occur in a particular commercial installation. If this equipment does cause interference, which can
be determined by turning the equipment off and on, the user is encouraged to contact Axiohm
immediately.
Axiohm is not responsible for any radio or television interference caused by unauthorized
modification of this equipment or the substitution or attachment of connecting cables and
equipment other than those specified by Axiohm. The correction of interferences caused by such
unauthorized modification, substitution or attachment will be the responsibility of the user.

December 1999ii
In order to ensure compliance with the Product Safety, FCC and CE marking requirements, you
must use the power supply, power cord, and interface cable which were shipped with this
product or which meet the following parameters:
Power Supply
UL Listed (QQGQ), Class 2 power supply with SELV (Secondary Extra Low Voltage), non-energy
hazard output, limited energy source, input rated 100-240 Vac, 1.5/0.8 A, 50/60 Hz, output rated
24 Vdc, 2.3 A.
Use of this product with a power supply other than the Axiohm power supply will require you to
test the power supply and Axiohm printer for FCC and CE mark certification.
Communication Interface Cable
A shielded (360-degree) interface cable must be used with this product. The shield must be
connected to the frame or earth ground connection or earth ground reference at EACH end of the
cable.
Use of a cable other than described here will require that you test the cable with the Axiohm
printer and your system for FCC and CE mark certification.
Power Cord
A UL listed, detachable power cord must be used. For applications where the power supply
module may be mounted on the floor, a power cord with Type SJT marking must be used. For
applications outside the US, power cords that meet the particular country’s certification and
application requirements should be used.
Use of a power cord other than described here may result in a violation of safety certifications
that are in force in the country of use.
Industry Canada (IC)
Radio Frequency Interference Statement
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur
du Canada.
Voluntary Control Council for Interference (VCCI)
Radio Frequency Interference Statement
This is a Class A product based on the standard of the Voluntary Control Council for Interference
by Information Technology Equipment (VCCI). If this equipment is used in a domestic
environment, radio disturbance may arise. When such trouble occurs, the user may be required
to take corrective actions.

A794 Owner’s Guide Contents
December 1999
iii
Contents
Chapter 1: About the Printer..............................................................1
Description of Printer ....................................................................2
Models Available ...........................................................................3
Model Identification ...............................................................3
Communication Interfaces..................................................... 3
Features ...........................................................................................4
Options ............................................................................................4
Chapter 2: Using the Printer............................................................... 5
Unpack the Printer.........................................................................6
Remove the Starter Paper Roll Supports ............................. 7
Choose a Location .......................................................................... 8
On a Flat Surface ..................................................................... 8
On a Wall ................................................................................. 8
Connect the Cables......................................................................... 9
Communication Cable............................................................9
Cash Drawer Cables ...............................................................10
Power Supply Cable ............................................................... 10
Printer Controls..............................................................................11
Loading Receipt Paper ..................................................................13
Configuring the Printer .................................................................16
Troubleshooting the Printer.......................................................... 18
Printer Tone and Green LED.................................................18
Printing Problems ...................................................................19
Printer Does Not Function.....................................................19
Chapter 3: Media and Supplies Guide.............................................21
Ordering Thermal Paper............................................................... 22
Thermal Paper Specifications................................................22
Manufacturers .........................................................................22
How to Order ..........................................................................22
Ordering Miscellaneous Supplies ................................................ 23
Ordering Cash Drawers .........................................................23
Ordering Power Supply and Power Cord........................... 23
Ordering Communication Cables......................................... 24
Wall-Mount Kit .......................................................................24
Chapter 4: Print Specifications .......................................................... 25
Characters .......................................................................................26
Print Modes .............................................................................26
Size............................................................................................26
Paper Specifications....................................................................... 27
Print Zones......................................................................................27
Print Zones for 80 mm Paper................................................. 27
Print Zones for 82.5 mm Paper.............................................. 29
Print Density and Density of Receipt Print Lines ......................30
Duty Cycle Restrictions (Printing Solid Blocks).........................31
Character Sets ................................................................................. 32
Code Page 437 .........................................................................32
Code Page 850 .........................................................................33

Contents A794 Owner’s Guide
December 1999
iv
Code Page 852 .........................................................................34
Code Page 858 .........................................................................35
Code Page 860 .........................................................................36
Code Page 863 .........................................................................37
Code Page 865 .........................................................................38
Code Page 866 .........................................................................39
Code Page 1252 .......................................................................40
Chapter 5: Communication Interface ...............................................41
Communication Overview............................................................42
Interface....................................................................................42
Sending Commands................................................................42
RS-232C Interface ...........................................................................43
Print Speed and Timing .........................................................43
XON/XOFF Protocol ..............................................................44
DTR/DSR Protocol .................................................................45
RS-232C Technical Specifications..........................................45
Parallel Interface.............................................................................48
Chapter 6: Programming Information ..............................................49
Command Conventions.................................................................50
List of Commands and Location ..................................................51
By Command Code.................................................................51
By Function ..............................................................................55
Comparisons ...................................................................................60
Command Descriptions.................................................................61
Printer Function Commands .................................................61
Vertical Positioning and Print Commands ..........................68
Horizontal Positioning Commands ......................................72
Print Characteristics Commands ..........................................79
Graphics Commands ..............................................................92
Status Commands ...................................................................101
Bar Code Commands..............................................................121
Page Mode Commands ..........................................................124
Macro Commands...................................................................130
User Data Storage Commands ..............................................132
Flash Download Commands .................................................135
Index ................................................................................................139

Click here to download the full manual at THE-CHECKOUT-TECH.COM