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Technical Reference Guide
Product Overview
Describes features of the product.
Setup
Describes setup and installation of the product and peripherals.
Advanced Usage
Describes advanced usage methods for the product.
Application Development Information
Describes how to control the printer and necessary information when you develop applications.
Handling
Describes how to handle the product.
Replacement of the TM-T20II
Describes precautions for replacement.
Appendix
Describes general specifications and character code tables.
M00122200
Rev. A
Cautions
•
No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of Seiko Epson Corporation.
•
The contents of this document are subject to change without notice. Please contact us for the latest information.
•
While every precaution has been taken in the preparation of this document, Seiko Epson Corporation assumes no responsibility for errors or omissions.
•
Neither is any liability assumed for damages resulting from the use of the information contained herein.
•
Neither Seiko Epson Corporation nor its affiliates shall be liable to the purchaser of this product or third parties for damages, losses, costs, or expenses incurred by the purchaser or third parties as a result of: accident, misuse, or abuse of this product or unauthorized modifications, repairs, or alterations to this product, or (excluding the U.S.) failure to strictly comply with Seiko Epson Corporation's operating and maintenance instructions.
•
Seiko Epson Corporation shall not be liable against any damages or problems arising from the use of any options or any consumable products other than those designated as Original Epson Products or Epson
Approved Products by Seiko Epson Corporation.
Trademarks
EPSON is a registered trademark of Seiko Epson Corporation. Exceed Your Vision and ESC/POS are registered trademarks or trademarks of Seiko Epson Corporation.
Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and/or other countries.
Wi-Fi
®
, WPATM, and WPA2TM are either registered trademarks or trademarks of Wi-Fi Alliance
®
.
IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license.
Android and Google Play are trademarks of Google, Inc.
All other trademarks are the property of their respective owners and used for identification purpose only.
ESC/POS
®
Command System
EPSON ESC/POS is a proprietary POS printer command system that includes patented or patent-pending commands. ESC/POS is compatible with most EPSON POS printers and displays. ESC/POS is designed to reduce the processing load on the host computer in POS environments. It comprises a set of highly functional and efficient commands and also offers the flexibility to easily make future upgrades.
©Seiko Epson Corporation 2019. All rights reserved.
For Safety
Key to Symbols
The symbols in this manual are identified by their level of importance, as defined below. Read the following carefully before handling the product.
You must follow warnings carefully to avoid serious bodily injury.
WARNING
CAUTION
Provides information that must be observed to prevent damage to the equipment or loss of data.
•
Possibility of sustaining physical injuries.
•
Possibility of causing physical damage.
•
Possibility of causing information loss.
Provides information that must be observed to avoid damage to your equipment or a malfunction.
Provides important information and useful tips.
Warnings
WARNING
•
To avoid risk of electric shock, do not set up this product or handle cables during a thunderstorm
•
Never insert or disconnect the power plug with wet hands.
Doing so may result in severe shock.
•
Handle the power cable with care.
Improper handling may lead to fire or electric shock.
∗
Do not modify or attempt to repair the cable.
∗
Do not place any heavy object on top of the cable.
∗
Avoid excessive bending, twisting, and pulling.
∗
Do not place the cable near heating equipment.
∗
Check that the plug is clean before plugging it in.
∗
Be sure to push the plug all the way in.
•
Be sure to use the specified AC adapter.
Connection to an improper power source may cause fire or shock.
•
Do not place multiple loads on the power outlet.
Overloading the outlet may lead to fire.
•
Shut down your equipment immediately if it produces smoke, a strange odor, or unusual noise.
Continued use may lead to fire. Immediately unplug the equipment and contact qualified service personnel.
•
Never attempt to repair this product yourself. Improper repair work can be dangerous.
•
Never disassemble or modify this product.
Tampering with this product may result in injury or fire.
•
Do not allow foreign matter to fall into the equipment.
Penetration by foreign objects may lead to fire.
3
WARNING
•
If water or other liquid spills into this equipment, do not continue to use it.
Continued use may lead to fire. Unplug the power cord immediately and contact qualified service personnel.
•
Do not use aerosol sprayers containing flammable gas inside or around this product.
Doing so may cause fire.
Cautions
CAUTION
•
Do not connect cables in ways other than those mentioned in this manual.
Different connections may cause equipment damage or fire.
•
Be sure to set this equipment on a firm, stable, horizontal surface.
The product may break or cause injury if it falls.
•
Do not use this product in locations subject to high humidity or dust levels.
Excessive humidity and dust may cause equipment damage or fire.
•
Do not place heavy objects on top of this product. Never stand or lean on this product.
Equipment may fall or collapse, causing breakage and possible injury.
•
Take care not to push your hand or finger against the manual cutter. Doing so may injure your hand or finger.
∗
When you remove printed paper
∗
When you perform other operations such as loading/replacing roll paper
•
Do not open the roll paper cover without taking the necessary precautions, as this can result in injury from the autocutter fixed blade.
•
To ensure safety, unplug this product before leaving it unused for an extended period.
•
Do not remove the user interface board installed on this product.
Caution Labels
The caution labels on the product indicate the following precautions.
CAUTION:
Do not touch the thermal head and the frame on its side during or immediately after use. After printing, the thermal head and its surroundings can be very hot.
Restriction of Use
When this product is used for applications requiring high reliability/safety, such as transportation devices related to aviation, rail, marine, automotive, etc.; disaster prevention devices; various safety devices, etc.; or functional/precision devices, etc., you should use this product only after giving consideration to including failsafes and redundancies into your design to maintain safety and total system reliability.
Because this product was not intended for use in applications requiring extremely high reliability/safety, such as aerospace equipment, main communication equipment, nuclear power control equipment, or medical equipment related to direct medical care, etc., please make your own judgment on this product's suitability after a full evaluation.
4
Note About Interference
•
This product 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.
•
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna for the radio/TV.
- Increase the separation between the equipment and the radio/TV.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult your dealer or an experienced radio/TV technician for help.
•
Never disassemble or modify this product.
•
Seiko Epson Corporation shall not be liable for interference to radio/TV resulting from changes or modifications to this product not expressly approved by Seiko Epson Corporation.
Open Source Software License
This product uses open source software in addition to Epson proprietary software. For information of the open source software used in this product, see the following URL.
http://xxx.xxx.xxx.xxx/licenses.html
For “xxx.xxx.xxx.xxx” in the above URL, input your printer’s IP address.
5
About this Manual
Aim of the Manual
This manual provides developers/engineers with all the necessary information for design, development and installation of a POS system, and also design and development of a printer application.
Manual Content
The manual is made up of the following sections:
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Appendix
Application Development Information
Specifications of Interfaces and Connectors
6
Contents
7
■
8
Application Development Information....................................................... 62
9
10
Chapter 1 Product Overview
Product Overview
This chapter describes features of the product.
Features
Printing
•
High speed receipt printing is possible (250 mm/s {9.84"/s} maximum).
•
Switching from 80 mm {3.15"} width paper printing to 58 mm {2.28"} width paper printing is available.
Handling
Easy drop-in paper loading
Software
•
Command protocol is based on the ESC/POS
®
Proprietary Command System.
•
Windows printer drivers, OPOS ADK, and OPOS ADK for .NET are available.
•
Printing of various types of bar codes, GS1-DataBar, and two-dimensional symbols (PDF417, QR code,
MaxiCode, Composite Symbology, Aztec Code, DataMatrix) is supported.
•
A maintenance counter function is supported.
•
Multiple languages are supported for code pages, Windows drivers, and utility software.
Interface
The interface is selectable when purchasing the product.
Environment
Paper reduction function is available.
Others
•
Various installation layouts (horizontal, vertical, and wall-hanging installation) are selectable.
•
Optional Wireless LAN unit and external buzzer are available.
11
Product Configurations
Models
•
Serial (RS-232C)/USB interface model
•
Ethernet interface model
Accessories
Included
•
Roll paper (for operation check)
•
Power switch cover
•
Soft power switch cover
•
Wall hanging bracket
•
Rubber feet for vertical installation
•
58 mm width roll paper guide
•
AC adapter
•
Interface cable*
•
AC cable*
•
User's Guide
*: Not included with some models
Options
•
Affixing tape for fixing the printer (Model: DF-10)
•
External buzzer (Model: OT-BZ20)
•
Wireless LAN cable set (Model: OT-WL06)
Chapter 1 Product Overview
12
Parts and Functions
Chapter 1 Product Overview
1
2
3
4
5
6
7
8
9
Roll paper cover
Manual cutter
Cutter cover
Power switch
Power switch cover
Open this cover to install/replace the roll paper.
Use this cutter when you cut the roll paper manually.
If the roll paper cover will not open due to a paper jam, open this cover and unlock the autocutter blade.
Press this button to turn the printer on or off. ( : OFF/ : ON)
Put this cover on the power switch to prevent it being operated inadvertently.
To operate the power switch, insert an object with a pointed tip such as a ballpoint pen into the hole on the power switch cover.
For attaching the power switch cover, see "Attaching the Power Switch Cover" on page 39
.
Press this button to print the interface status sheet, or to reset the interface settings.
Status sheet button
(Ethernet interface model only)
Cover open lever
Feed button
LED lights
Use this button to open the roll paper cover.
Press this button to feed the roll paper by one line. Hold down this button to feed the roll paper continuously.
For details on the LED lights, see "LED lights" on page 14
.
13
Chapter 1 Product Overview
LED lights
1
2
Power LED
Error LED
3 Paper LED
1
2
3
•
On when the power supply is on.
•
Off when the power supply is off.
Lights or flashes when the printer is offline. (For information about the lighting and flashing patterns, see
"Status and Errors" on page 16
.)
•
Lights after the power is turned on or after a reset (offline). Automatically goes out after a while to indicate that the printer is ready.
•
Lights when the end of the roll paper is detected, and when printing has stopped
(offline). If this happens, replace the roll paper.
•
Off when the printer is in standard mode (online).
•
Lights when there is no more roll paper. If the near-end detection is set to
“Enabled”, this LED also lights when the near-end of the paper is detected.
•
Off when there is a sufficient amount of roll paper remaining.
•
Flashes when a self-test is in progress or when macro execution standby state.
14
Connectors
All connectors are located on the lower rear of the printer.
•
The interface installed differs according to the model.
•
Do not remove the user interface board installed on this product.
Chapter 1 Product Overview
1
2
Serial interface
USB (Type-B) connector
3 Ethernet connector
4 Power supply connector
5 USB (Type-A) connector
6 Drawer kick connector
Connects the serial cable for connecting to a computer.
Connects the USB cable for connecting to a computer.
The connector is covered with a plate when shipped with some model.
When using this connector with such model, set Interface Selection in the printer's Software Setting Mode to [Built-in USB]. See
"Software Settings" on page 41 .
Connects the 10BASE-T/100BASE-TX Ethernet cable.
Connects the AC cable. "Connecting the AC adapter" on page 28
Use only for connecting optional Wireless LAN unit.
Leave the cover in place if this connector is not used.
Connects the cash drawer or the optional external buzzer.
"Connecting the Cash Drawer" on page 34
"Connecting the Optional External Buzzer" on page 36
15
Chapter 1 Product Overview
Status and Errors
The LEDs light or flash to indicate the printer status.
The printer cannot print while an error is left unsolved.
Online and Offline
Online
The printer is online and ready for normal printing unless there is a reason to go offline.
Offline
The printer automatically goes offline under the following conditions:
•
While the printer power is turning on/off
•
While a self-test is running
•
While roll paper is fed using the Feed button
•
When the printer stops printing due to a paper end
(When the paper end is detected by the roll paper end sensor)
•
During an operation standby state
•
When an error has occurred ( "Status and Errors" on page 16 )
•
While the roll paper cover is open
Automatically Recoverable Errors
The printer cannot print when automatically recoverable errors occur. When the conditions for recovery described below are met, the printer automatically recovers from the error.
Error
Roll paper cover open error
Error description
The roll paper cover was opened during printing
Error LED status
ON
Condition for Recovery
The roll paper cover is closed
Head temperature error A high temperature outside the thermal head drive operating range was detected
ON When the thermal head cools
16
Chapter 1 Product Overview
Recoverable Errors
The printer cannot print when a recoverable error occurs. When the roll paper cover is closed, the power is turned off and on again, or an error recovery command is received, the printer can recover from the error.
Error
Autocutter error
Error description
Autocutter does not work correctly
Error LED status
ON
Condition for Recovery
Recovers from the error when the jammed paper or foreign matter is removed, and the roll paper cover is closed
The error recovery command is valid only if a recoverable error (excluding automatically recoverable errors) occurs.
Use the TM-T20III Utility to change the condition for recovery. For details, see the TM-T20III Utility
User's Manual.
Unrecoverable Errors
The printer cannot print when an unrecoverable error occurs. If the error persists after turning the printer off and then on again, the printer may be defective. Contact qualified service personnel.
Turn off the power immediately when an unrecoverable error occurs.
CAUTION
Error
R/W error in memory
Error description
After R/W checking, the printer does not work correctly.
High voltage error
Low voltage error
CPU execution error
Internal circuit connection error
The power supply voltage is extremely high.
The power supply voltage is extremely low.
LED ON
LED OFF
The CPU is executing an incorrect address.
Internal circuits are not connected correctly.
Error LED flash code
Approx. 320 ms
17
Chapter 1 Product Overview
Status Display
Online
Initializing after power-on
Running a self-test
Waiting to continue self-test
Feeding using the Feed button
Waiting to execute a macro
Roll paper cover open while the printer is not printing
No paper
While updating firmware
While in forced firmware update mode
While in power off standby
The network link is down
Waiting to print status sheet
Power LED
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
-: Changes depending on whether or not paper is detected.
*: The error LED flashing patterns are as follows.
LED ON
LED OFF
Approx. 640 ms
Approx. 5,120 ms
Error LED
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
Flashing
ON
OFF
Flashing *
ON
Paper LED
OFF
-
-
Flashing
-
Flashing
-
ON
Flashing
ON
Flashing
-
Flashing
18
Chapter 1 Product Overview
NV Memory
The printer is equipped with the NV memory (Nonvolatile Memory) to store data even after the printer power is turned off. NV memory contains the following memory areas for the user:
•
NV graphics memory
•
User NV memory
•
Memory switches (Customized value)
•
R/E (Receipt Enhancement)
•
User-defined page
•
Maintenance counter
As a guide, NV memory rewriting should be 10 times or less a day when you program applications.
CAUTION
NV Graphics Memory
Graphics, such as shop logos to be printed on receipts, can be stored. Even with a serial interface model whose transmission speed is low, high speed graphics printing is possible.
Use the TM-T20III Utility to register graphics.
You can confirm the registered graphics in the NV graphics information print mode.
•
For detailed information about the Epson TM-T20III Utility, see the TM-T20III Utility User's
Manual.
•
For information about how to use the NV graphics information print mode, see "NV Graphics
Information Print Mode" on page 52 .
User NV Memory
You can store and read text data for multiple purposes, such as for storing a note including customizing or maintenance information of the printer.
Memory Switches (Customized Value)
You can configure various settings of the printer.
For more information, see "Software Settings" on page 41
.
R/E (Receipt Enhancement)
Graphics, such as shop logos to be printed on top or bottom of receipts can be registered.
Use the TM-T20III Utility to register graphics.
19
Chapter 1 Product Overview
User-defined Page
You can store character data in the user-defined page (character code table: page 255) so that you can also print characters not resident in the printer.
Maintenance Counter
With this function, printer information, such as the number of lines printed, the number of autocuts, and printer operation time after the printer starts working, is automatically stored in NV memory. You can use the counter information for periodical checks or part replacement.
You can also check the print head running length and number of times of autocutting with the self-
test (see "Self-test Mode" on page 52
).
20
Chapter 1 Product Overview
Simple Setup for Wireless LAN
This printer comes with a mode (SimpleAP) that allows printers to connect with a smart device or a computer without requiring a wireless access point. This allows you to easily setup a wireless LAN for the printer by using a printer settings tool (TM-T20III Utility, Epson TM Utility for iOS/Android, or EpsonNet Config) even without a network environment such as access points.
SimpleAP mode is enabled by default when shipping from the factory. When SimpleAP mode is enabled and the printer is turned on, the following information is printed automatically.
SimpleAP Start
SSID
Encryption Type
Passphrase
: EPSON_Printer
: WPA2-PSK
: 12345678
IP Address
MAC Address
: 192.168.192.168
: xx-xx-xx-xx-xx-xx
Although operations are performed in SimpleAP mode during the initial startup, operations switch to standard mode (infrastructure mode) when changing settings in Epson TM-T20III Utility or EpsonNet Config. After switching, operations continue in standard mode. If you want to make settings in SimpleAP mode again,
initialize the communication settings. ( "Resetting the Interface Settings" on page 61
)
Changing to standard mode
Ex.) Change IP address,
change SSID
SimpleAP mode
(default setting)
Standard mode
(infrastructure
mode)
Initialize the communication settings
21
Chapter 1 Product Overview
Useful Functions for Smart Devices
You can easily connect this product to the network by using the QR code printed on the status sheet.
QR Code
Capture the QR code printed on the status sheet with the camera on your smart device to acquire the printer information (information for specifying the device).
Specify the target printer using the acquired information to connect to the network.
•
To use the function, programming using Epson ePOS SDK is required. In addition to the QR code capturing operations, use Printer Easy Select API to achieve this function.
See the “Epson ePOS SDK for Android/iOS User's Manual” and the Epson ePOS SDK sample program for more details. The sample program also contains a sample implementation method for capturing a QR code.
•
You can try a demo of the function by using Epson TM Utility for iOS/Android.
22
Chapter 2 Setup
Setup
This chapter describes setup and installation of the product and peripherals.
Flow of Setup
This chapter consists of the following sections along with the setup flow of the product and peripherals.
1.
Installing the Printer (page 24)
2.
Adjusting the Roll Paper Near-End Sensor (page 27)
3. Connecting the AC adapter (page 28)
4.
Connecting the Printer to the Host (page 29)
5. Connecting the Cash Drawer (page 34)
6.
Connecting the Optional External Buzzer (page 36)
7. Connecting the Optional Wireless LAN Unit (page 38)
8. Attaching the Power Switch Cover (page 39)
9. Changing the Paper Width (page 40)
23
Chapter 2 Setup
Installing the Printer
You can install the printer horizontally on a flat surface (with the paper exit on top) or vertically (with the paper exit at the front). Also, you can hang it on a wall using the included accessories.
Horizontal installation Vertical installation
Hanging on a wall
•
Do not place the printer in a dusty location.
•
Do not knock or strike the printer. This may cause defective print.
•
Do not catch cables or place foreign matter under the printer.
•
Take measures to prevent the printer from moving by vibration during paper cutting and when using a drawer. Affixing tape (Model: DF-10) is provided as an option.
Installing the Printer Vertically
When installing the printer vertically, attach the four rubber feet in the rectangular indents in the printer case, as shown in the illustration below.
Rubber feet
24
Chapter 2 Setup
Hanging the Printer on a Wall
To securely hang the printer on a wall, follow the steps below.
•
Hang the printer on a wood, concrete, or metal wall. The thickness of the wall should be 10 mm
{0.4"} or more.
•
Be sure to use metallic screws.
•
The screws to be put into the wall must have a pull-out strength of 150 N (15.3 kgf ) or more.
1
Put two screws (diameter: 4 mm {0.16"}, head diameter: 7 to 9 mm {0.28 to 0.35"}) into the wall at an interval of 80 mm {3.15"}.
Make sure the length of the screw in the wall is 10 mm {0.39"} or more, and the length outside the wall is 3 to 4 mm {0.12 to 0.16"}.
80 mm
{3.15"}
3 to 4 mm {0.12 to 0.16"}
7 to 9 mm
{0.28 to 0.35"}
4 mm
{0.16"}
10 mm {0.39"} or more
2
Remove the two screws from the printer, and then attach the wall hanging bracket to the printer using the screws.
Screws
Wall hanging bracket
25
Chapter 2 Setup
3
Align the holes in the wall hanging bracket with the screws on the wall, and hook it securely.
26
Chapter 2 Setup
Adjusting the Roll Paper Near-End Sensor
Below are two situations where a roll paper near-end sensor adjustment is required.
•
To adjust the detection position to suit the diameter of the roll paper core used.
•
To adjust the detection position of remaining amount of paper.
•
The roll paper near-end detection function can be used only when this product is installed horizontally.
•
Be sure to disable the near-end detection when the product is installed vertically or is wallmounted. Failure to do so may lead to erroneous detection.
•
Since roll paper cores vary slightly in shape, depending on paper roll design and manufacturing tolerances, it is impossible to detect the remaining paper exactly.
•
Use roll paper with a core inner diameter of 12 mm {0.47"} and outer diameter of 18 mm {0.71"} so that the near-end sensor can detect the remaining paper as accurately as possible.
•
To use the near-end detection, it must be enabled using the memory switches. See
for details about the making the memory switch settings.
Follow the steps below to adjust the roll paper near-end sensor.
1
Open the roll paper cover, and remove the roll paper.
2
Loosen the adjustment screw fastening the sensor, and align the upper edge of the positioning plate with the adjustment position.
Adjustment position
Upper
Lower (Default setting)
Remaining amount of paper
(outer diameter)
Approx. 27 mm {1.06"}
Approx. 23 mm {0.97"}
3
Tighten the adjustment screw.
4
After adjustment, make sure that the detection lever operates smoothly.
Adjustment screw
Upper position
Positioning plate
Lower position
Detection lever
27
Chapter 2 Setup
Connecting the AC adapter
WARNING
•
Be sure to use the specified AC adapter [AC adapter, C1 (Model: M235B)]. Penetration by foreign objects may lead to fire.
•
Never insert the AC cable plug into a socket that does not meet the input voltage of the AC adapter.
Doing so may result in damage to the printer.
•
Should a fault ever occur, immediately turn off the power to the printer and unplug the AC cable from the wall socket.
Connecting Procedure
1
Make sure the printer is turned off.
2
Connect the AC cable to the AC adapter.
AC adapter
AC cable
3
Connect the DC cable of the AC adapter to the power supply connector (stamped
24V).
28
Chapter 2 Setup
Connecting the Printer to the Host
•
Be sure to install the driver before connecting the printer to the host computer.
•
The printer uses a modular connector specifically designed for the cash drawer. Do not connect the connector to an ordinary telephone line.
USB Interface
When using USB cable to connect with host device, connect the USB cable to the printer, and after starting the host device, turn the printer on.
When connecting the USB cable to the printer, fix the cable with the hook to prevent it from being disconnected.
Hooks
USB cable
Do not place any weight or stress on the cable when using. Doing so could damage the cable and connectors.
Serial Interface
When connecting to the host computer through a serial interface (RS-232), connect a serial cable to the printer, start the host computer, and then turn on the printer.
•
When using connectors equipped with screws, tighten the screws on both sides to secure the connectors firmly.
•
When using interface cables equipped with a ground line, attach the ground line to the screw hole marked “FG” on the printer.
29
Chapter 2 Setup
Ethernet Interface
Use an Ethernet cable to connect the printer to network via a hub.
Use Epson TM-T20III Utility or EpsonNet Config to set network.
For detailed information about the Epson TM-T20III Utility, refer to the TM-T20III Utility User's Manual.
For details on EpsonNet Config, refer to EpsonNet Config User's Guide.
•
When LAN cables are installed outdoors, make sure they are connected through devices that have surge protection.
Otherwise, the devices can be damaged by lightning.
•
Never attempt to connect the drawer kick cable or a standard telephone line cable to the LAN connector.
As same with Conventional models, you can use EpsonNet Config (Web version) in the same way.
User name/password: epson
Wireless LAN Interface (when OT-WL06 is used)
You can connect using a wired cable (LAN/USB), or connect using SimpleAP mode, and setup a wireless LAN using a network configuration tool. When setting up multiple printers, you can connect using a wired cable
(LAN/USB) and setup a wireless LAN using the Epson Deployment Tool.
Using Epson TM Utility for iOS/Android, you can easily connect the printer to the network from an iOS or
Android devices.
•
When using wireless LAN, make sure you disconnect the LAN cable. If a LAN cable is connected, wireless LAN is disabled.
•
When you set up the access point at the same time, set the access point in advance and check that it operates correctly.
•
Examine the radio wave situation in the surrounding area before use.
•
Avoid using the same channel that is used in the neighboring shops where Wireless LAN is used.
•
When using the printer in environments where kitchen microwaves and other devices that may interfere radio waves are installed, observe the following points.
∗
Keep the printer away from the devices, such as kitchen microwaves, that may cause radio wave interference.
∗
Use channels that are away from the frequency bands that may cause radio wave interference.
∗
Place shields between the printer and the devices that may cause radio wave interference.
∗
Select either 2.4 GHz or 5 GHz, whichever is free from radio wave interference.
∗
In auto channel setting for the access point, do not select a channel in which the devices may cause radio wave interference.
•
In the infrastructure mode, W53 and W56 channels are not available to connect to a stealth SSID access point.
For SimpleAP mode, see
"Simple Setup for Wireless LAN" on page 21
.
30
Chapter 2 Setup
Setting up Using a SimpleAP Connection from a Windows Computer
Necessary Items
Prepare the following items.
•
Computer for setting: Windows 10/8/7
Computer equipped with a wireless LAN function
•
Utility for setting: TM-T20III Utility or EpsonNet Config
Follow the steps below to connect the printer.
1
Turn on the printer.
After starting the printer, check that the “SimpleAP Start” is printed. If it is not printed, you need to enable SimpleAP mode in interface setup mode.
2
Activate Windows Wireless Network Connection and select [EPSON_Printer] as the connection device on the screen that appears.
If the window to enter a pass phrase appears, enter "12345678”.
Default settings on printer are the following values.
Network mode SimpleAP mode
SSID
Passphrase
IP Address
EPSON_Printer
12345678
192.168.192.168
3
When connecting to the printer is complete, setup the Wireless LAN using the TM-
T20III Utility or EpsonNet Config.
For information about the TM-T20III Utility, see the TM-T20III Utility User's Manual.
For details about EpsonNet Config, refer to EpsonNet Config User's Guide.
4
When setting the wireless LAN is complete, remove the wired cable (LAN/USB) and restart the printer.
31
Chapter 2 Setup
Setting up Using a USB Connection from a Windows Computer
Necessary Items
•
Computer for setting: Windows 10/8/7
•
Utility for setting: TM-T20III Utility
•
USB cable
Follow the steps below to connect the printer.
1
Connect the printer to the computer via the USB cable.
2
Turn on the computer.
3
Turn on the printer.
4
Start the TM-T20III Utility.
5
Select the printer, and then press the [OK] button.
If the printer is not displayed, press the “Add Port” button, and then add the printer connected by
USB.
6
Perform network I/F as well as TCP/IP settings.
For details, see the TM-T20III Utility User's Manual.
7
When you have finished making settings, disconnect the USB cable, turn off the printer, and then turn it back on.
To start wireless LAN communication, be sure to disconnect the USB cable, turn off the printer, and then turn it back on.
32
Setting up from a Smart Device
Necessary Items
Prepare the following items.
•
Device for setting: iOS or Android device
•
Utility for setting: Epson TM Utility for iOS/Android
Running Epson TM Utility for iOS/Android
1
Run the Epson TM Utility for iOS/Android.
2
Set from “Wi-Fi Setup Wizard” in the menu.
Setup and Operation Workflow
1. Select the network you want to connect to.
2. Enter the passkey.
3. Perform a test print.
Chapter 2 Setup
33
Chapter 2 Setup
Connecting the Cash Drawer
•
The optional external buzzer and the cash drawer cannot be used simultaneously. Do not connect both the optional external buzzer and the cash drawer to the printer at the same time by using a branched connector.
•
The cash drawer cannot be used If the enable/disable setting for the optional external buzzer is set to “enable”. When using the cash drawer, be sure to set it to “disable” using the Epson TM-
T20III Utility.
•
Two driver transistors cannot be energized simultaneously.
•
Leave intervals longer than 4 times the drawer driving pulse when sending it continuously.
Cash Drawer Requirements
Specifications of drawers differ depending on makers or models. When you use a drawer other than specified, make sure its specification meets the following conditions.
Otherwise, devices may be damaged.
•
The load, such as a drawer kick solenoid, must be connected between pins 4 and 2 or pins 4 and 5 of the drawer kick connector.
•
When the drawer open/close signal is used, a switch must be provided between drawer kick connector pins 3 and 6.
•
The resistance of the load, such as a drawer kick solenoid, must be 24 ohms or more or the input current must be 1A or less.
•
Be sure to use the 24V power output on drawer kick connector pin 4 for driving the equipment.
Drawer Connection Diagram
1
Drawer kick connector
With shielded
2
Drawer kick solenoid
3
4
5
6
Drawer open/ close switch
6 5 4 3 2 1
Printer side User side [Drawer kick side]
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Chapter 2 Setup
Connecting the Drawer Kick Cable
WARNING
•
Use a shield cable for the drawer kick cable.
•
When using cash drawer, make sure to use the power supply for printer (connector pins 4).
•
Do not insert a telephone line into the drawer kick connector.
Doing so may damage the telephone line or printer.
Connect the drawer kick cable to the drawer kick connector by pressing firmly until the connector clicks into place.
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Chapter 2 Setup
Connecting the Optional External Buzzer
When the optional external buzzer (model: OT-BZ20) is connected to the drawer kick connector of the printer, you can set the printer so that it beeps when you send commands, when an error occurs, when executed auto cutting, and when detected paper end. Settings for sound patterns and frequency depending on the occasions the buzzer beeps are also available.
Use the TM-T20III Utility to make the buzzer settings: enable/disable setting, sound pattern setting, and frequency setting.
•
Be sure to turn off the printer before you connect/disconnect the optional external buzzer.
•
The optional external buzzer and the cash drawer cannot be used simultaneously. Do not connect both the optional external buzzer and the cash drawer to the printer at the same time by using a branched connector.
Volume adjustment knob
Connecting Procedure
The optional external buzzer is recommended to be installed in the following positions.
•
When using the printer horizontally: either side
•
When using the printer vertically or on a wall: either side/top/bottom (only for wall hanging installation)
Horizontal installation
(Front View)
Vertical/Wall-hanging installation
(Front View)
•
Do not install the optional external buzzer at the roll paper exit.
•
To prevent liquid from entering inside, it is recommended to install the optional external buzzer so that the volume adjustment knob is positioned sideways or downward.
36
Chapter 2 Setup
1
Turn off the printer.
2
Clean and dry the printer case where the buzzer will be installed.
3
With 2 included pieces of the affixing tape combined, peel off the backing paper on one side, and stick the tape in the center of the attaching surface of the buzzer unit.
Affixing tape
4
Connect the cable of the buzzer to the drawer kick connector on the printer.
Drawer kick connector
5
Peel off the backing paper on the other side of the affixing tape, and attach the buzzer unit to the printer case.
Printer case
37
Chapter 2 Setup
Connecting the Optional Wireless LAN Unit
The optional Wireless LAN cable set (OT-WL06) enables you to use the product with a Wi-Fi connection. For more information, refer to User’s Manual of the Wireless LAN cable set.
•
Be sure to turn off the printer when connecting the Wireless LAN unit.
•
Depending on the installation conditions of the printer and the routing for cables connected to it, the status of the radio waves for the Wireless LAN unit may decline. If this does happen, use an extension cable.
38
Chapter 2 Setup
Attaching the Power Switch Cover
By attaching the power switch cover supplied, you can prevent accidental operations of the power switch. You can press the power switch by inserting a sharp-pointed object in the holes on the power switch cover.
To detach the cover, use a sharp-pointed object.
A soft cover for the power switch is also included.
If an accident occurs with the power switch cover attached, unplug the AC cable immediately.
Continued use of the printer may cause fire or shock.
WARNING
Use the soft power switch cover if the printer is installed in a humid location or exposed to water. If current leakage occurs, it could result in electric shock.
Power switch cover
39
Chapter 2 Setup
Changing the Paper Width
You can change the paper width from 80 to 58 mm {3.15 to 2.28"} by installing the included 58-mm {2.28"} width roll paper guide. Follow the steps below to change the paper width.
Because some parts of the print head and the autocutter contact the platen and they may become worn out, once you change the paper width from 80 to 58 mm {3.15 to 2.28"} and use the printer, you cannot change it back to 80 mm {3.15"}.
1
Open the roll paper cover.
2
Align the three tabs of the 58-mm {2.28"} width roll paper guide with the rectangular holes in the printer, and push the guide downward.
Roll paper guide
Rectangular holes
3
Using the memory switch, change the paper width setting.
For more information, see
"Software Settings" on page 41 .
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Chapter 3 Advanced Usage
Advanced Usage
Software Settings
With the memory switches and customized values, which are software settings for this printer, you can set the various functions. For an outline of the functions, see the following pages. Use the Epson TM-T20III Utility or
Software Setting Mode to set the memory switches.
•
For detailed information about the Epson TM-T20III Utility, refer to the TM-T20III Utility User's
Manual.
•
For information about how to use the memory switch setting mode, see "Software Setting
Item/Method
Automatic line feed
USB power-saving function
Paper sensors to output paper end signal
Error signal output
Data processing with reception error
Recovery conditions from receive buffer BUSY
Receive buffer capacity
Condition for BUSY
Near-end detection
Print density
Print speed
Power supply unit capacity
Paper Width & Print Column
Automatic paper reduction
Character code table defaults
International character defaults
Font A auto replacement
Font B auto replacement
Autocutting after closing the roll paper cover
Buzzer function
Shrinking/Expanding graphics data
USB class
Serial Interface Communication Condition
Interface selection
Software Setting Mode
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
Epson TM-T20III Utility
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
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Chapter 3 Advanced Usage
Item/Method
Cut error release method
Auto top logo printing
Auto bottom logo printing
Extended settings for auto top logo/bottom logo printing
Software Setting Mode Epson TM-T20III Utility
✔
✔
✔
✔
Feature
Automatic line feed
•
Always disabled (default setting)
•
Always enabled
When set to “Always enabled”, paper is fed by one line after data in the print buffer is printed.
USB power-saving function
•
Disabled
•
Enabled (default setting)
The USB power-saving function is valid only when the USB interface communication condition is set to the vendor-defined class and the system configuration is set so that the USB driver can support the USB power-saving function.
Paper sensors to output paper end signal
•
Enables both the roll paper end sensor and the roll paper near-end sensor (default setting)
•
Disables both of the sensors
Error signal output
•
Enabled (default setting)
•
Disabled
This model does not support this setting.
Data processing with reception error
•
Prints “?” (default setting)
•
Ignored
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Chapter 3 Advanced Usage
Recovery conditions from receive buffer BUSY
•
Releases the BUSY state when the remaining receive buffer capacity reaches 256 bytes (default setting)
•
Releases the BUSY state when the remaining capacity of the receive buffer reaches 138 bytes.
Receive buffer capacity
•
4 KB (default setting)
•
45 bytes
Condition for BUSY
•
Receive buffer full/Offline (default setting)
•
Receive buffer full
•
In either case above, the printer enters the BUSY state after power is turned on, and when a selftest is being run.
•
If BUSY condition is set to “Receive buffer full,” the printer will not become BUSY
∗
When the roll paper cover is open
∗
When paper is fed by the FEED button
∗
When printing has stopped for a paper out
∗
When macro execution ready state
∗
When error has occurred
Near-end detection
•
Disabled (default setting)
•
Enabled
Print density
Selectable from levels 1 to 7 (Light to Dark)
Default setting: Level 4
Depending on the paper type, it is recommended to set the print density as shown in the table below for the best print quality.
Density Original Paper type
AF50KS-E
KT55FA
KT48FA
Level 4
F5041(48)
F5041(55)
Level 5
When the print density level is increased, print speed may be reduced.
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Chapter 3 Advanced Usage
Print speed
Selectable from levels 1 to 13 (Slow ~ Fast)
Default setting: Level 13
Depending on print conditions, such as print duty, thermal head temperature, and data transmission speed, print speed is automatically adjusted, which may cause white lines due to intermittent print (the motor sometimes stops). To avoid this, keep the print speed constant by setting it lower.
Power supply unit capacity
Selectable from levels 1 to 3
Default setting: Level 3
Paper Width & Print Column
•
To change the paper width, you need to install the 58 mm width paper guide plate. (See
"Changing the Paper Width" on page 40
.)
•
Because some parts of the print head and the autocutter contact the platen and they may become worn out, once you change the paper width from 80 to 58 mm {3.15 to 2.28"} and use the printer, you cannot change it back to 80 mm {3.15"}.
•
80 mm {3.15"} width paper/48 characters (default setting)
•
80 mm {3.15"} width paper/42 characters
•
58 mm {2.28"} width paper/35 characters
•
58 mm {2.28"} width paper/42 characters
Automatic paper reduction
•
Disabled (default setting)
•
Recommended setting
•
Maximum paper reduction
The table below shows the details of “Recommended setting”, and “Maximum paper reduction”.
Top margin
Bottom margin
Line spacing
Line break
Barcode height
Space around each character
Recommended setting
Reduced
Reduced
Reduced by 75%
Reduced by 75%
Reduced by 75%
Not reduced
Maximum paper reduction
Reduced
Reduced
Reduced by 75%
Reduced by 75%
Reduced by 75%
Reduced by 75%
•
No reduction is applied to blank lines that are generated for printing a graphic data.
•
Reduced barcodes are not guaranteed to be correctly scanned. Make sure to check whether they are properly read by a barcode reader that is actually used.
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Chapter 3 Advanced Usage
Character code table defaults
Selectable from 43 pages including user-defined page
Default setting: PC437: USA, Standard Europe
Refer to the following URL regarding the character code table.
www.epson-biz.com/pos/reference/charcode/
International character defaults
Selectable from 18 sets
Default setting: USA
Font A auto replacement
•
Does not replace (default setting)
•
Font B
Font B auto replacement
•
Does not replace (default setting)
•
Font A
Autocutting after closing the roll paper cover
•
Cuts (default setting)
•
Does not cut
Buzzer function
•
For information about how to connect the optional external buzzer, see
Optional External Buzzer" on page 36
.
•
When the optional external buzzer is enabled, a cash drawer cannot be used. Be sure to disable it when you use a cash drawer.
Enables/disables
•
Disabled (default setting)
•
Enabled
Buzzer frequency (Error)
•
Does not sound
•
Sounds 1 time
•
Sounds continuously (default setting)
45
Sound pattern (Autocut)
Selectable from Patterns A to E
Default setting: Pattern A
Buzzer frequency (Autocut)
•
Does not sound
•
Sounds 1 time (default setting)
Sound pattern (Pulse 1)
Selectable from Patterns A to E
Default setting: Pattern A
Buzzer frequency (Pulse 1)
•
Does not sound
•
Sounds 1 time (default setting)
Sound pattern (Pulse 2)
Selectable from Patterns A to E
Default setting: Pattern B
Buzzer frequency (Pulse 2)
•
Does not sound
•
Sounds 1 time (default setting)
Shrinking/Expanding graphics data
Resizing
•
No resizing (default setting)
•
Automatic shrinking
•
Manual adjustment
Algorithm
•
Thinning out method
•
Nearest neighbor method (default setting)
•
Bilinear method
•
Bicubic method
Scaling factor (manual adjustment)
50% to 200%
USB class
•
Vendor-defined class (default setting)
•
Printer class
Chapter 3 Advanced Usage
46
Chapter 3 Advanced Usage
Serial Interface Communication Condition
Baud rate
•
2400 bps
•
4800 bps
•
9600 bps
•
19200 bps
•
38400 bps (default setting)
•
57600 bps
•
115200 bps
Parity
•
No parity (default setting)
•
Odd parity
•
Even parity
Handshaking
•
DTR/DSR (default setting)
•
XON/XOFF
Bit length
•
7 bits
•
8 bits (default setting)
Interface selection
•
The default settings and selectable settings differ according to the model.
•
If the model has the USB Type B port blocked by a metal plate, to use the USB interface, it is necessary to remove the metal plate, connect the USB cable, and select [Built-in USB] or [Auto
Selection] for this setting.
•
UIB (The interface used for data communication is limited to the serial interface.)
•
Built-in USB
•
Ethernet
*1
•
UIB / Built-in USB (The interface used for data communication is limited to the interface connected to the printer.)
*2
•
Auto Selection
*1: Default setting for Ethernet interface model.
*2: Default setting for Serial/USB interface model.
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Chapter 3 Advanced Usage
Auto top logo printing
TM-T20III Utility does not support the setting for the number of lines to be deleted below top logo.
Key-code
Selectable from key-codes of registered logos
Alignment
•
Left
•
Center
•
Right
Number of lines to be deleted below top logo
Auto bottom logo printing
Key-code
Selectable from key-codes of registered logos
Alignment
•
Left
•
Center
•
Right
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Chapter 3 Advanced Usage
Extended settings for auto top logo/bottom logo printing
TM-T20III Utility does not support the following settings.
•
Top logo print while paper feeding to the cutting position
•
Top logo print while clearing the buffer to recover from a recoverable error
•
Top logo print after paper feeding with the Feed button has finished
Top logo print while paper feeding to the cutting position
•
Disabled (default setting)
•
Enabled
Top logo print when printer is powered on
•
Disabled (default setting)
•
Enabled
Top logo print when roll paper cover is closed
•
Disabled
•
Enabled (default setting)
Top logo print while clearing the buffer to recover from a recoverable error
•
Disabled
•
Enabled (default setting)
Top logo print after paper feeding with the Feed button has finished
•
Disabled (default setting)
•
Enabled
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Chapter 3 Advanced Usage
Setting/Checking Modes
As well as print mode, the following modes are also provided for making various printer settings and checking items.
•
Self-test mode
•
NV graphics information print mode
•
Receipt Enhancement information print mode
•
Software setting mode
•
Restore default values mode
•
Interface setup mode (Ethernet model only)
•
Peripheral device information print mode
•
Hexadecimal dumping mode
To enter the Self-test mode or the Hexadecimal dumping mode, turn the printer on with the special operations as described below.
To enter one of the other modes, first enter the Self-test mode, and then select one mode by operating the Feed button as described below.
Close the roll paper cover, and turn on the printer while pressing the Feed button.
Self-test
(1)
Briefly press the Feed button.
Continuing the self-test
Press the Feed button once briefly and then hold it down
NV Graphics
Information
Hold down the Feed button
Mode selection guidance
(2)
Press the Feed button two times briefly and then hold it down
Receipt
Enhancement
Information
Press the Feed button three times briefly and then hold it down
Software Setting
Press the Feed button four times briefly and then hold it down
Restore Default
Values
Press the Feed button five times briefly and then hold it down
Interface Setup
Mode
Press the Feed button six times briefly and then hold it down
Peripheral Device
Information Print
Mode
Open the roll paper cover, turn on the printer while pressing the Feed button, and then close the roll paper cover.
Hexadecimal Dumping
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Chapter 3 Advanced Usage
In (1) and (2), the following guidances are printed, the Paper LED flashes, and instructs the user's operations.
1. Continuing self-test guidance
2. Mode selection guidance
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Chapter 3 Advanced Usage
Self-test Mode
You can check the following items using the self-test.
•
Product name
•
Firmware version
•
Product serial number
•
Interface information
•
Resident fonts
•
Maintenance counter information (print head running length, number of times of auto-cutting)
Follow the steps below.
1
Close the roll paper cover.
2
While pressing the Feed button, turn on the printer. (Hold down the Feed button until printing starts.)
After printing the current print status, a Continuing self-test guidance is printed, and the Power LED flashes.
3
Briefly press the Feed button (less than one second) to continue the self-test.
The printer prints a rolling pattern on the roll paper, using the built-in character set.
After “*** completed ***” is printed, the printer initializes and switches to standard mode.
NV Graphics Information Print Mode
Prints the following NV graphics information registered to the printer.
•
Capacity of the NV graphics
•
Used capacity of the NV graphics
•
Unused capacity of the NV graphics
•
Number of NV graphics that are registered
•
Key code, number of dots in X direction, number of dots in Y direction to be defined.
•
NV graphics data
For details on NV graphics, see
"NV Graphics Memory" on page 19
.
Follow the steps below.
1
After running a self-test, hold down the Feed button for at least one second to enter the Mode selection.
The Mode selection guidance is printed, and the Paper LED flashes.
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Chapter 3 Advanced Usage
2
After briefly (less than one second) pressing the Feed button once, hold it down for at least one second, to print the NV graphics information.
After information printing, the Mode selection guidance is printed again.
3
To finish, turn off the power, or select “Exit and Reboot Printer”.
Receipt Enhancement Information Print Mode
You can check the following items using the R/E information mode:
•
Auto top logo printing setting
•
Auto bottom logo printing setting
•
Extended settings for auto top/bottom logo printing
Follow the steps below.
1
After running a self-test, hold down the Feed button for at least one second to enter the Mode selection.
The Mode selection guidance is printed, and the Paper LED flashes.
2
After briefly (less than one second) pressing the Feed button twice, hold it down for at least one second, to print the R/E information.
After information printing, the Mode selection guidance is printed again.
3
To finish, turn off the power, or select “Exit and Reboot Printer”.
Software Setting Mode
You can change the printer settings. For information on available setting items, see
"Software Settings" on page 41
Follow the steps below.
1
After running a self-test, hold down the Feed button for at least one second to enter the Mode selection.
The Mode selection guidance is printed, and the Paper LED flashes.
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Chapter 3 Advanced Usage
2
Briefly press the Feed button three times (less than one second), hold it down for at least one second to enter the Software setting mode (Customized Value Settings).
The Software setting mode guidance is printed, and the Paper LED flashes.
Customize Value Settings
Modes
0: Exit
1: Print Current Settings
2: Interface Settings
3: Print Density
4: Print Speed
5: Automatic Reduction of Paper
6: Auto Paper Feed&Cut at cover close
7: Character/Column Settings
8: Buzzer Control
9: Near-end Detection
10: Power Supply Unit Capacity
Select Modes by executing following procedure.
step 1. Press the Feed button less than 1 second as many times as the selected mode number.
step 2. Press Feed button for 1 second or more.
3
After briefly pressing the Feed button (less than one second) for the number of times shown in the print result, hold down the button for more than one second to select the setting items.
The setting selected as the setting item, the current settings and default settings are printed.
Depending on the setting item, you may need to continue selecting the setting item before the settings are printed.
For details on setting items, see "Software Settings" on page 41
.
When set to a value other than those in the software setting mode, the current settings are not printed.
4
Select a setting by briefly pressing the Feed button (less than one second) for the number of times applicable to the setting, and then hold down the button for more than one second to confirm your selection.
After saving the settings, the Software setting mode guidance is printed, and the Paper LED flashes.
5
To close Software setting mode, turn off the printer, or select “Exit” to return to Mode selection guidance, and then select “Exit and Reboot Printer”.
•
To select 0 as the item number, hold down the Feed button until printing starts.
•
If the button is pressed a number of times that is not displayed by the Setup guidance, the operation is invalid and the same guidance is printed.
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Chapter 3 Advanced Usage
Restore Default Values Mode
In Restore default values mode, following values saved on NV Memory will be set back to default settings.
When any error occurs, you can use to specify the reason.
Customized value
Memory Switches
Setting Contents
R/E (Receipt Enhancement) settings
Communication condition of USB interface
Communication condition of serial interface
Communication condition of network interface
NV graphics
NV bit image
User-defined page
User NV Memory
Setting Items
✔
✔
✔
✔
✔
✔
-
-
-
-
Restore Default Values and Delete Defined Data
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
Follow the steps below.
1
After running a self-test, hold down the Feed button for at least one second to enter the Mode selection.
The Mode selection guidance is printed, and the Paper LED flashes.
2
Briefly press the Feed button four times (less than one second), hold it down for at least one second to enter the Restore Default Values.
The guidance is printed.
3
When only restoring the default settings:
Briefly press the Feed button once (less than one second), hold it down for at least one second. (Hold down the Feed button until the restoration complete message is printed.)
When restoring default settings and deleting user defined data:
Briefly press the Feed button twice (less than one second), and then hold it down for at least one second. (Hold down the Feed button until the restoration complete message is printed.)
4
To finish, turn off the power.
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Chapter 3 Advanced Usage
Interface Setup Mode
Use this mode to setup the interface and other settings.
Follow the steps below.
1
After running a self-test, hold down the Feed button for at least one second to enter the Mode selection.
The Mode selection guidance is printed, and the Paper LED flashes.
2
Briefly press the Feed button five times (less than one second), hold it down for at least one second to enter the Interface Setup mode.
The guidance is printed.
3
After briefly pressing the Feed button (less than one second) for the number of times shown in the print result, hold down the button for more than one second to select the setting items.
Initialize
Select [Wi-Fi & Ethernet Setup] and select [Initialize] to initialize the network setting parameter. The printer is reset and restarted.
SimpleAP mode (OT-WL06)
In Wi-Fi model, select [Wi-Fi & Ethernet Setup] and select [SimpleAP] to start in SimpleAP mode (the same as the factory default setting). The printer is reset and restarted, and it begins printing the “SimpleAP Start” information.
Select this to use Quick connection for Wi-Fi model.
For information on the Quick connection function, see "Simple Setup for Wireless LAN" on page 21
.
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Chapter 3 Advanced Usage
Peripheral Device Information Print Mode
This function allows you to print information for the device (Wi-Fi adapter information) currently connected to the printer.
Follow the steps below.
1
After running a self-test, hold down the Feed button for at least one second to enter the Mode selection.
The Mode selection guidance is printed, and the Paper LED flashes.
2
Briefly press the Feed button six times (less than one second), hold it down for at least one second to print the Peripheral Device Information.
After information printing, the Mode selection guidance is printed again.
3
To finish, turn off the power, or select “Exit and Reboot Printer”.
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Chapter 3 Advanced Usage
Hexadecimal Dumping Mode
In the hexadecimal dumping mode, the printer prints the data transmitted from a host computer in hexadecimal numbers and their corresponding characters. It enables you to check if data is transmitted to the printer correctly.
•
If there is no character corresponding to print data, “.” is printed.
•
If you press the Feed button when there is less than one line of print data, one line is printed.
•
During hexadecimal dumping mode, applications that check the printer status may not operate correctly. The printer only returns the status for the “Real-time transmission status” command.
Follow the steps below.
1
Open the roll paper cover.
2
While pressing the Feed button, turn on the printer. (Hold down the Feed button until the Error LED turns on.)
3
Close the roll paper cover.
The printer starts printing data received from then on in hexadecimal numbers and their corresponding ASCII characters.
Example of printing in hexadecimal dumping mode:
4
To close hexadecimal dumping mode, turn off the printer after printing is complete, or press the Feed button for three times.
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Chapter 3 Advanced Usage
Printing a Status Sheet
Follow the steps below to check the interface settings.
•
When the power LED is flashing, wait until it remains lit to start printing.
•
This function is available only with the Ethernet interface model.
Using the Status Sheet Button
Only the content for the Ethernet and Wi-Fi interface are printed.
1
Check that the printer is turned on.
Make sure the roll paper cover is closed.
2
Hold down the status sheet button (for 3 seconds or longer).
The status sheet is printed. After printing, the printer returns to the standard mode.
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Chapter 3 Advanced Usage
Using the Feed button
Content for the Ethernet, and Wi-Fi interface are printed.
1
Check that the printer is turned on.
2
Open the roll paper cover.
3
Hold down the Feed button (for 1 seconds or longer).
4
Close the roll paper cover.
The status sheet is printed. After printing, the printer returns to the standard mode.
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Chapter 3 Advanced Usage
Resetting the Interface Settings
Follow the steps below to reset the interface settings.
•
You can return the interface settings to their defaults from the Interface Setup mode. For details on the Interface Setup mode, see
"Interface Setup Mode" on page 56
.
•
Only network settings are returned to their defaults.
1
Turn off the printer and close the roll paper cover.
2
Hold down the status sheet button while turning on the printer.
A message is printed indicating that resetting is being performed, and the printer restarts.
Hold down the status sheet button until the initialization execution message is printed.
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Chapter 4 Application Development Information
Application Development Information
This chapter describes how to control the printer and gives information useful for printer application development.
Controlling the Printer
The printer supports the following command systems:
• ePOS-Print XML (Ethernet interface model only)
•
ESC/POS
Users can control the printer by using the aforementioned command, or the following development kits or drivers.
•
EPSON Advanced Printer Driver (APD)
•
OPOS ADK
•
OPOS ADK for .NET
•
Epson ePOS SDK
ePOS-Print XML
ePOS-Print XML is the Epson original control command system for POS printers defined in XML. With ePOS-
Print XML commands, you can print in environments where http communication is available and from OS applications. For detailed information about ePOS-Print XML, see the ePOS-Print XML User's Manual.
ESC/POS
ESC/POS is the Epson original printer command system for POS printers and customer display.
With ESC/POS commands, you can directly control all the printer functions, but detailed knowledge of printer specifications or combination of commands is required, compared to using drivers and applications.
For details of ESC/POS, see the ESC/POS Command Reference. The ESC/POS Command Reference can be accessed at the following URL.
www.epson-biz.com/pos/reference/
62
Chapter 4 Application Development Information
Controlling the Cash Drawer
A pulse output is sent to drawer kick connector pin 2 or pin 5, and you can open the drawer.
You can also check the open/close status of the drawer by checking the signal level of the drawer kick connector pin 3.
These controls are executed by a driver or by commands.
ESC/POS Commands
Prepare the output command for the specified pulse and the status transmission command.
For details, see the ESC/POS Command Reference.
For Windows Printer Drivers (APD)
You can set so that the drawer opens at the start/end of printing or start/end of a page. For details, see the manual for drivers.
For details on control, see the manual for Status API of the driver.
OPOS (OCX Driver)
Register a cash drawer using the SetupPOS Utility, and control using the OpenDrawer method or the DirectIO function.
For details, see the “EPSON OPOS ADK MANUAL APPLICATION DEVELOPMENT GUIDE
Cash Drawer” and the “UnifiedPOS Specification”.
OPOS for .NET
Register a cash drawer using the SetupPOS Utility, and control using the OpenDrawer method or the DirectIO function.
For details, see the “EPSON OPOS ADK for .NET MANUAL Application Development Guide Cash
Drawer (EPSON Standard)” and the “UnifiedPOS Specification”.
Epson ePOS SDK
The output command for the drawer kick pulse and the status transmission command are provided in each SDK library. For details, see the user's manuals provided with each SDK.
•
Whether or not pin 2 or pin 5 operates the drawer kick connector depends on the connected cash drawer.
•
You can acquire documents regarding the UnifiedPOS from the following link.
https://nrf.com/resources/retail-technology-standards/unifiedpos
63
Chapter 4 Application Development Information
Controlling the Optional External Buzzer
You can set the optional external buzzer to buzz when an error occurs and when an automatic cut off occurs.
The buzzer can be buzzed using a driver or a command.
You can also set the timing and the beep pattern for the buzzer.
ESC/POS Commands
Use the buzzer control command or the output command for the specified pulse.
For details, see the ESC/POS Command Reference.
For Windows Printer Drivers (APD)
You can set so that the buzzer beeps at the start/end of printing or start/end of a page. For details, see the manual for drivers.
For API, use the DirectIO function or the API for opening the drawer. For details, see the manual for Status API of the drivers.
OPOS (OCX Driver)
Register a POS printer using the SetupPOS Utility and control using the DirectIO function.
For details, see the “EPSON OPOS ADK MANUAL APPLICATION DEVELOPMENT GUIDE
POSPrinter (TM Series)”.
OPOS for .NET
Register a POS printer using the SetupPOS Utility and control using the DirectIO function.
For details, see the “EPSON OPOS ADK for .NET MANUAL Application Development Guide POS
Printer (TM-T20III)”.
Epson ePOS SDK
The command for the buzzer function is provided in each SDK library. For details, see the user's manuals provided with each SDK.
64
Chapter 4 Application Development Information
Software
The following software is provided for application development.
Development Kits
Software
EPSON OPOS ADK
EPSON OPOS ADK for .NET
Description
This OCX driver can control POS peripherals using OLE technology.
*
Because controlling POS peripherals with original commands is not required on the application side, efficient system development is possible.
The OPOS ADK for .NET is a POS industry standard printer driver compatible with
Microsoft POS for .NET.
It allows you to develop applications that are compatible with the UPOS (Unified
POS) specification.
When developing applications, use a separate development environment such as
Microsoft Visual Studio .NET.
EPSON JavaPOS ADK (Windows/Linux) JavaPOS is the standard specification which defines an architecture and device interface (API) to access various POS devices from a Java based system. Using
JavaPOS standard API allows control with Java based applications of functions inherent to each device. A flexible design with Java language and JavaPOS enables many different types of computer systems, such as stand alone or network configuration, to use a same application. You can use JavaPOS to build applications and drivers independently of platforms. This allows flexible configurations using thin clients to meet the system requirements.
Epson ePOS SDK for Android for iOS for JavaScript
This is a developer kit to control applications, native applications for smart devices, and printers. This includes libraries, manuals, and sample programs.
* OLE technology developed by Microsoft divides software into part blocks. The OPOS driver is presupposed to be used with a development environment, such as Visual Basic, unlike ordinary Windows printer drivers. It is not a driver to be used for printing from commercial applications.
You can acquire documents regarding the UnifiedPOS from the following link.
https://www.omg.org/retail/unified-pos.htm
65
Chapter 4 Application Development Information
Drivers
Software
EPSON Advanced
Printer Driver (APD)
EPSON TM Virtual Port
Driver
Mac Printer Driver
Epson TM/BA Series
Thermal Printer Driver
Description
Operating environment
In addition to ordinary Windows printer driver functions, this driver has controls specific to POS. The Status API (Epson original DLL) that monitors printer status and sends ESC/POS commands is also attached to this driver.
Windows
This is a serial/parallel-USB/LAN conversion driver to make an Epson TM/
BA/EU printer connected via USB or LAN accessible from a POS application through a virtual serial or parallel port.
It allows you to directly control devices connected via USB or LAN with
ESC/POS commands without making changes in the POS application that controls devices connected via a serial or parallel interface.
Windows
Mac printer driver allows you to control the printer using Common UNIX
Printing System (CUPS) on Mac OS X.
This is a full raster printer driver. It is able to print images, text, and vector graphics etc., that an application displays. With this driver many printer controls are possible, such as paper cut timing control, cash drawer control, printing speed control, blank line skip, and upside-down printing. It also provides API and dialogues for print setting, sample applications, and logo setting utility.
Mac OS X
This driver allows you to control the printer using Common UNIX Printing
System (CUPS) on GNU/Linux.
This is a full raster printer driver. It is able to print images, text, and vector graphics etc., that an application displays. With this driver many printer control are possible, such as paper cut timing control, cash drawer control, printing speed control, blank line skip, and upside-down printing.
GNU/Linux
66
Chapter 4 Application Development Information
Utilities
Software
TM-T20III Utility
Epson TM Utility
EpsonNet Config
Epson Deployment Tool
Epson Monitoring Tool
Description
Operating environment
A utility for checking and changing various printer settings. Use this utility to:
•
Check the current settings
•
Test operation
•
Store logos
•
Set paper reduction
•
Set printing control
•
Set communication interfaces
•
Set the network
•
Save/restore settings
Windows
This application offers wireless connection setup, change of configuration, and sample receipt printing on an Epson TM printer from an iOS or Android device. It can be downloaded from the App
Store or Google Play.
iOS, Android
A network setting tool for Epson network products.
Windows, Mac
Use to make network and printer settings simultaneously. Allows you to make settings efficiently at the time of introducing TM printers for the first time, or when configuring multiple TM printers at the same time.
Windows
Use to check a list of status for the Epson printers connected to the network.
You can also update certificates for multiple printers in a batch.
Windows
Others
Software
ePOS-Print XML User's Manual
Description
Describes ePOS-Print XML statements. This manual comes with sample programs.
Download
You can obtain software and manuals from one of the following URLs.
For customers in North America, go to the following web site and follow the on-screen instructions.
www.epson.com/support/
For customers in other countries, go to the following web site: www.epson-biz.com
67
Chapter 5 Handling
Handling
This chapter describes basic handling of the printer.
Installing and Replacing Roll Paper
CAUTION
•
Do not open the roll paper cover during printing.
The printer may be damaged.
•
Do not touch the manual cutter with your hands when installing or replacing the roll paper.
Otherwise, you may be injured because the manual cutter blade is sharp.
•
Use roll paper that meets the printer specification. For details about paper specification, see
"Paper Specifications" on page 79
.
•
Do not use a roll paper whose end is pasted to the paper core.
1
Press the cover open lever to open the roll paper cover.
Cover open lever
2
Remove the used roll paper core, if any.
68
3
Install the roll paper in the correct direction.
Chapter 5 Handling
4
Pull out some roll paper, and close the roll paper cover.
69
Chapter 5 Handling
Removing Jammed Paper
When a paper jam occurs, never pull out the paper forcibly. Open the roll paper cover, and then remove the jammed paper.
Do not touch the thermal head. (See "Cleaning the Thermal Head/Platen Roller" on page 72 .
)
After printing, the thermal head and its surroundings can be very hot.
CAUTION
When the Roll Paper Cover Cannot be Opened
If a foreign substance has entered the autocutter or the roll paper jams, the autocutter blade cannot return to the correct position and it locks in place. In this situation, the roll paper cover does not open even if you pull the cover open lever.
Follow the steps below to return the autocutter blade to its normal position.
1
Turn off the printer.
2
Slide the cutter cover toward the front to open it.
70
Chapter 5 Handling
3
Turn the knob until you see a triangle in the opening. This returns the cutter blade to the normal position.
Refer to the operation instructions engraved on the back of the cutter cover.
Triangle Knob
4
Close the cutter cover.
5
Open the roll paper cover and remove the jammed paper.
71
Chapter 5 Handling
Cleaning the Printer
Cleaning the Printer Case
Be sure to turn off the printer, and wipe the dirt off the printer case with a dry cloth or a damp cloth. Be sure to unplug the AC cable while cleaning.
Never clean the product with alcohol, benzine, thinner, or other such solvents.
Doing so may damage or break the parts made of plastic and rubber.
CAUTION
Cleaning the Thermal Head/Platen Roller
Epson recommends cleaning the thermal head periodically (generally every 3 months) to maintain receipt print quality. Depending on the roll paper used, paper dust may stick to the platen roller and cause an irregular paper feed. To remove the paper dust, clean the platen roller with a cotton swab moistened with water. Turn on the printer power only after the water has completely dried.
Turn off the printer and open the roll paper cover. Clean the thermal elements of the thermal head with a cotton swab moistened with an alcohol solvent (ethanol or IPA).
•
After printing, the thermal head can be very hot. Do not touch it and let it cool before you clean it.
•
Do not damage the thermal head by touching it with your fingers or any hard object.
CAUTION
Platen roller
Thermal head
72
Preparing for Transport
Follow the steps below to transport the printer.
1
Turn off the printer.
2
Ensure that the POWER LED has turned off.
3
Disconnect the AC cable.
4
Remove the roll paper.
5
Pack the printer upright.
Chapter 5 Handling
73
Chapter 6 Replacement of the TM-T20II
Replacement of the TM-T20II
The TM-T20III is designed so that it can smoothly replace the TM-T20II. This chapter describes precautions for the replacement.
Compatibility
Printing
The printing and character specifications are the same as those of the TM-T20II. Without special configurations, the TM-T20III prints the same results as the TM-T20II prints.
Print Speed
The TM-T20III prints faster than the TM-T20II.
Maximum print speed
Print speed setting
TM-T20III
Up to 250 mm/s {9.84"/s}
Level 1 to 13
TM-T20II
Up to 200 mm/s {7.87"/s}
Level 1 to 13
Depending on print conditions such as print duty, print head temperature, and data transmission speed, print speed is automatically adjusted.
Logo Registration
The TM-T20III can register logos in the NV memory (NVRAM) with the Setup Utilities.
Driver Compatibility
You can operate the TM-T20III with a driver for the TM-T20II.
74
Chapter 6 Replacement of the TM-T20II
Overall Dimensions
You can place the TM-T20III in the same location as the TM-T20II, since its overall dimensions and weight are almost the same as those of the TM-T20II.
TM-T20III
W:140 × D:199 × H:146 mm Approx. 1.7 kg
{W:5.52” × D:7.84” × H:5.75” Approx. 3.75 lb}
TM-T20II
W:140 × D:199 × H:146 mm Approx. 1.7 kg
{W:5.52” × D:7.84” × H:5.75” Approx. 3.75 lb}
140
140
199
146
199
146
Units: mm
75
Appendix
Appendix
Product Specifications
Printing method
Paper feed speed
Cutting Method
Interface
Buffers Receive buffer
Downloaded buffer
Thermal line printing
Approx. 250 mm/s {approx. 7.88"/s}
(continuous paper feeding with the Feed button)
Partial cut (cutting with one point at left uncut)
Serial/USB mode
USB: USB 2.0 Full-speed (12 Mbps)
Serial: RS-232
Wireless LAN: Connects an optional Wireless LAN unit to the
USB connector.
Ethernet model
USB: USB 2.0 Full-speed (12 Mbps)
Ethernet: 10BASE-T/100BASE-TX
Wireless LAN: Connects an optional Wireless LAN unit to the
USB connector.
4 KB/45 bytes (selectable using the memory switches)
Approx. 12 KB
(both for user-defined characters and downloaded images)
NV graphics data 256 KB
Downloaded graphics data 208 KB
Barcode/two-dimensional symbol/ composite symbol printing
UPC-A, UPC-E, JAN 8 (EAN 8), JAN 13 (EAN 13), CODE 39,
ITF, CODABAR (NW-7), CODE 93, CODE 128, GS1-128,
GS1 DataBar Omnidirectional, GS1 DataBar Truncated,
GS1 DataBar Stacked, GS1 DataBar Stacked Omnidirectional,
GS1 DataBar Limited, GS1 DataBar Expanded,
GS1 DataBar Expanded Stacked, PDF417, QR CODE,
MaxiCode, Composite Symbology, Aztec Code, DataMatrix
Drawer kick connector drive function
Power supply
AC power consumption
(100 to 230V/50 to 60 Hz)*
Operating
Life
Standby
Mechanism
2 drives
Power supplied by the specified AC adapter
Approx. 29.5 W
Approx. 0.80 W
15 million lines
150 km {93.2 miles}
Temperature/humidity
Overall dimensions (H × W × D)
Mass
Thermal head
Autocutter
MTBF
MCBF
1,500,000 cuts
360,000 hours
60,000,000 lines
Operating: 5 to 45°C {41 to 113°F}, 10 to 90% RH
Storage: -10 to 50°C {14 to 122°F}, 10 to 90% RH
146 × 140 × 199 mm {5.75 × 5.51 × 7.83"}
Approx. 1.7 kg {3.31 lb} (roll paper excluded)
* : According to our operation conditions. It may differ depending on the usage conditions and product model.
76
Appendix
Printing Specifications
Printing method
Paper feed direction
Dot density
Printable Area
Standard mode
(default setting)
42 column mode
Standard mode
(default setting)
Characters per line
42 column mode
Character spacing
Standard mode
(default setting)
42 column mode
Font A
Font B
Font A
Font B
Font A
Font B
Font A
Font B
Line spacing
Maximum print speed dpi: dots per inch
80 mm {3.15"} width paper 58 mm {2.28"} width paper
Thermal line printing
Unidirectional with friction feed
203 × 203 dpi
72 mm {2.84"}, 576 dots
68.3 mm {2.69"}, 546 dots
48
64
42
60
0.25 mm {0.0098"} 2 dots
52.5 mm {2.07"}, 420 dots
47.3 mm {1.86"}, 378 dots
35
46
42
31
0.25 mm {0.0098"} 2 dots
0.38 mm {0.0098"} 3 dots 0.25 mm {0.0098"} 2 dots
0.25 mm {0.0098"} 2 dots 0.25 mm {0.0098"} 2 dots
3.75 mm {0.15"} (default setting, programmable by command)
250 mm/s {9.84"/s}
Printing speed may be slower, depending on such items as the data transmission speed.
77
Appendix
Character Specifications
Number of characters
Character structure
(W x H dots)
Character size
*
Standard
Double-height
Double-width
Double-width double-height
Standard mode
(default setting)
42 column mode
Standard mode
(default setting)
42 column mode
Font A
Font B
Font A
Font B
Font A
Font B
Font A
Font B
80 mm {3.15"} width paper 58 mm {2.28"} width paper
Alphanumeric characters: 95
Extended graphics: 128 × 43 pages (including user-defined page)
International characters: 18 sets
12 × 24 dots (Right-side dot space: 2)
9 × 17 (Right-side dot space: 2)
13 × 24 dots (Right-side dot space: 3)
9 × 17 dots (Right-side dot space: 2)
1.25 × 3.00 mm {0.05 × 0.12"}
1.25 × 6.00 mm {0.05 × 0.24"}
2.50 × 3.00 mm {0.10 × 0.12"}
2.50 × 6.00 mm {0.10 × 0.24"}
0.88 × 2.13 mm {0.03 × 0.08"}
0.88 × 4.26 mm {0.03 × 0.16"}
1.76 × 2.13 mm {0.06 × 0.08"}
1.76 × 4.26 mm {0.06 × 0.16"}
1.25 × 3.00 mm {0.05 × 0.12"}
1.25 × 6.00 mm {0.05 × 0.24"}
2.50 × 3.00 mm {0.10 × 0.12"}
2.50 × 6.00 mm {0.10 × 0.24"}
0.88 × 2.13 mm {0.03 × 0.08"}
0.88 × 4.26 mm {0.03 × 0.16"}
1.76 × 2.13 mm {0.06 × 0.08"}
1.76 × 4.26 mm {0.06 × 0.16"}
0.88 × 2.13 mm {0.03 × 0.08"}
0.88 × 4.26 mm {0.03 × 0.16"}
1.76 × 2.13 mm {0.06 × 0.08"}
1.76 × 4.26 mm {0.06 × 0.16"}
1.25 × 3.00 mm {0.05 × 0.12"}
1.25 × 6.00 mm {0.05 × 0.24"}
2.50 × 3.00 mm {0.10 × 0.12"}
2.50 × 6.00 mm {0.10 × 0.24"}
*: Space between characters is not included.
Characters can be scaled up to 64 times as large as the standard size.
Refer to the following URL regarding the character code table.
www.epson-biz.com/pos/reference/charcode/
78
Appendix
Paper Specifications
Paper types
Form
Roll paper diameter
Size
Roll paper spool
Roll width when taken up
Paper width
Specified original paper type
Specified original paper type
80 mm {3.15"} width paper
Specified thermal paper
58 mm {2.28"} width paper
Roll paper
Max.: 83 mm {3.27"}
Inside: 12 mm {0.47"}, Outside: 18 mm {0.71"}
80 + 0.5/-1.0 mm {3.15 +0.02/-0.04"} 58 + 0.5/-1.0 mm {2.28 +0.02/-0.04"}
79.5 ± 0.5 mm {3.13 ±0.02"} 57.5 ± 0.5 mm {2.26 ±0.02"}
NTP080-80 NTP058-80
TF50KS-EY, TF60KS-E (NIPPON Paper Industries Co., Ltd.)
PD150R, PD160R, PD190R (OJI Paper Mfg. Co., Ltd.)
P220AGB-1 (Mitsubishi Paper Mills Limited.)
AF50KS-E (Jujo Thermal Oy)
F5041(48), F5041(55) (Mitsubishi HiTec Paper Flensburg GmbH)
KT55FA, KT48FA (Koehler Paper Group)
Epson Certified Media List for Thermal Receipt Printers
U www.epson-biz.com/?content=sht_tm_media
•
Paper must not be pasted to the roll paper spool.
•
For the best print quality for each paper type, it is recommended to set the print density. (See
"Software Settings" on page 41 .)
79
Appendix
Printable Area
80 mm {3.15"} width paper printing
The maximum printable area of paper with a width of 79.5 ± 0.5 mm {3.13 ± 0.02"} is 72.1 ± 0.2 mm {2.84 ±
0.008"} (576 dots) and the approximate space is 3.0 mm {0.12"} on the left side on the left side and 4.5 mm
{0.18"} on the right side.
80
Appendix
58 mm {2.28"} width paper printing
The maximum printable area of paper with a width of 57.5 ± 0.5 mm {2.26 ± 0.02"} is 52.6 ± 0.2 mm {2.07 ±
0.008"} (420 dots), and the approximate space is 3.0 mm {0.12"} on the left side and 2.0 mm {0.079"} on the right side.
81
Appendix
Printing and Cutting Positions
Manual cutter position
Autocutter blade position
Approx.
10.5 mm
{0.41"}
Approx. 27.1 mm {1.07"}
Center of the print dotline
Printable area
Paper feed direction
•
The values above may vary slightly as a result of paper slack or variations in the paper. Take this into account when setting the cutting position of the autocutter.
•
When removing cut paper, the remaining roll paper is pulled at the uncut section and the pitch of the next print may be reduced. When printing after cutting paper for prints with no pitch reduction, feed the paper about 1 mm {16/406 inches} before printing.
•
When leaving paper loaded for an extended period of time, make sure you feed about 30 mm of paper. This can prevent paper from wrinkling and causing prints to be too light.
82
Appendix
Electrical Characteristics
Supply voltage
Rated current
24VDC ± 7%
1.5 A
If printing is continuously performed with a high print ratio, the overcurrent protection may be activated and result in uneven print density or a low voltage error. Therefore, the printing length must not exceed the following values when printing with high print ratio.
Print ratio: Number of dots being energized per one dot line / Total number of dots per one dot line
(576 dots)
Print ratio 80% 100%
Print example
Print length
58 mm {2.28"}
30 mm {1.18"}
72 mm {2.83"}
20 mm {0.79"}
83
Appendix
Environmental Conditions
Temperature/
Humidity
Acoustic noise
Operating
Storage
(operating)
5 to 45°C {41 to 113°F}, 10 to 90% RH
(See the operating environment range below.)
-10 to 50°C {14 to 122°F}, 10 to 90% RH (except for paper)
[%RH]
90
80
Relative humidity
60
40
20
10
0
Operating environment range
34°C {93.2°F}, 90%
40°C {104°F}, 65%
45°C {113°F}, 50%
0 10 20 30 40 50
Ambient temperature
[°C]
Approx. 55 dB (bystander position)
Note: The values above are measured in the Epson evaluation condition.
Acoustic noise differs depending on the paper used, printing contents, and the setting values, such as print speed or print density.
84
External Dimensions and Mass
•
Height: Approx. 146 mm {5.75"}
•
Width: Approx. 140 mm {5.51"}
•
Depth: Approx. 199 mm {7.83"}
•
Mass: Approx. 1.7 kg {3.31 lb} (excluding roll paper)
Appendix
269.5
140 199
[Units: mm]
146
85
Appendix
Specifications of Interfaces and Connectors
Description
•
Full-speed transmission at 12 Mbps [bps: bits per second]
•
Plug & Play, Hot Insertion & Removal
USB Interface
USB interface connector
USB type-B connector
USB transmission specifications
USB function
Item
Overall specifications
Transmission speed
Transmission method
Power supply specifications
Specifications
According to USB 2.0 specifications
USB Full-Speed (12 Mbps)
USB bulk transmission method
USB self power supply function
Current consumed by USB bus 2 mA
USB bulk OUT (TM) 64 bytes
USB packet size
(with full-speed connection)
USB bulk IN (TM) 64 bytes
USB device class Both USB vendor-defined class and USB printer class are supported.
To set the USB device class, see
"Software Settings" on page 41
.
USB descriptor
Vendor ID
Product ID
String Descriptor
Manufacturer
Product
Serial number
USB vendor-defined class
04B8h
0202h
EPSON
TM-T20III
Character string based on the product serial number
USB printer class
04B8h
0E28h
EPSON
TM-T20III
Character string based on the product serial number
86
RS-232 Serial Interface
Interface board specifications (RS-232-compliant)
Item
Data transfer method
Synchronization
Handshaking
Signal level
Bit length
MARK
SPACE
Transmission speed
Parity check
Parity selection
Stop bit
Connector Printer side
Specifications
Serial
Asynchronous
Select one of the following in the software setting mode.
•
DTR/DSR
•
XON/XOFF
-3V to -15V logic “1”/OFF
+3V to +15V logic “0”/ON
Select one of the following in the software setting mode.
•
7 bit
•
8 bit
Select one of the following in the software setting mode.
2400/4800/9600/19200/38400/57600/115200 bps
[bps: bits per second]
Select one of the following in the software setting mode.
•
Yes
•
No
Select one of the following in the software setting mode.
•
Even
•
Odd
1 or more bits
However, the stop bit for data transfer from the printer is fixed to 1 bit.
DSUB 25 pin (female)
Appendix
87
Appendix
Functions of each connector pin
Pin no.
3
4
1
2
6
Signal name
FG -
Signal direction
TXD Output
RXD
RTS
DSR
Input
Output
Input
7
20
25
SG
DTR
INT
-
Output
Input
Function
Frame ground
Transmission data
Reception data
Equivalent to DTR signal (pin 20)
This signal indicates whether the host computer can receive data.
SPACE indicates that the host computer can receive data. MARK indicates that the host computer cannot receive data.
When DTR/DSR control is selected, the printer transmits data after confirming this signal. (except if transmitted using some ESC/POS commands).
When XON/XOFF control is selected, the printer does not check this signal.
When you use this signal as the printer’s reset signal, the printer is reset when the signal remains MARK for a pulse width of 1 ms or more.
Signal ground
1) When DTR/DSR control is selected, this signal indicates whether the printer is
BUSY.
•
SPACE status
Indicates that the printer is ready to receive data.
•
MARK status
Indicates that the printer is BUSY. Select the BUSY condition in the software setting mode.
2) When XON/XOFF control is selected, this signal indicates that the printer is properly connected and ready to receive data from the host.
•
SPACE status
The signal indicates that the printer is properly connected and ready to receive data from the host.
The signal is always SPACE, except in the following cases:
•
During the period from when power is turned on to when the printer is ready to receive data.
•
While the self-test is in progress.
The printer is reset if the signal remains at SPACE for a pulse width of 1 ms or more.
88
Appendix
XON/XOFF
When XON/XOFF control is selected, the printer transmits the XON or XOFF signals as follows.
The transmission timing differs, depending on the BUSY condition.
Signal
XON
Printer status
When the printer goes online after turning on the power
(or reset using the interface)
Transmit
BUSY condition
Receive buffer full
Receive buffer full/
Offline
Transmit
When the receive buffer is released from the buffer full state
Transmit Transmit
XOFF
When the printer switches from offline to online
When the printer recovers from an error using some
ESC/POS commands
When the receive buffer becomes full
When the printer switches from online to offline
-
-
Transmit
-
Transmit
Transmit
Transmit
Transmit
Code
The hexadecimal numbers corresponding to the XON/XOFF codes are shown below.
•
XON code: 11H
•
XOFF code: 13H
•
When the printer goes from offline to online and the receive buffer is full, XON is not transmitted.
•
When the printer goes from online to offline and the receive buffer is full, XOFF is not transmitted.
•
When handshaking is set to DTR/DSR, XON is not transmitted as long as the printer is offline, even if a receive buffer full state has been cleared.
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Appendix
Ethernet Interface
Communication specifications
10BASE-T/100BASE-TX
Support protocols
Protocols
IP, ARP, ICMP, UDP, TCP
LP, LPR
TCP Socket Port
HTTP/HTTPS
SNMP
ENPC
DHCP
APIPA
Usage
Basic communication protocols
Printing protocols
Used to transfer printing data and printer status via (bidirectional) direct socket communication.
Used by browsers to display and set module status
Used by dedicated and general MIB tools to acquire and set module and printer status
Used to acquire and set module and printer status
Used to acquire the IP address
Used to assign the IP address
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Network parameters
Item
IP Address
Subnet mask
Default gateway
IP address acquisition
APIPA arp/ping
IP Address Printing
Socket Timeout
Standard Community Name (Read Only)
Community name (Read Only)
Community name (Read/Write)
SNMP IP Trap 1
SNMP IP Trap 2
Communication mode
IP Filter
192.168.192.168
*
255.255.255.0
*
0.0.0.0
*
Automatic
Disabled
Disabled
Enabled
90 seconds
"public"
No
No
Disabled
Disabled
Auto negotiation
Disabled
* Initial value when “IP address acquisition” is set to “Manual.”
Default settings
Appendix
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Appendix
Wireless LAN Interface (when OT-WL06 is used)
When using wireless LAN, make sure you disconnect the LAN cable. If a LAN cable is connected, wireless LAN is disabled.
Specifications
•
IEEE802.11b/g/n (2.4 GHz band) or IEEE802.11a/b/g/n (2.4 GHz or 5 GHz band) compliant
•
Infrastructure mode is supported.
Communication Standard
•
IEEE802.11a (5 GHz)
•
IEEE802.11b (2.4 GHz)
•
IEEE802.11g (2.4 GHz)
•
IEEE802.11n (2.4 GHz / 5 GHz)
•
IEEE802.11ac (5 GHz)
Security
•
WEP
•
WPA-PSK(AES): WPA-PSK(AES),WPA-PSK(TKIP),WPA2-PSK(AES),WPA2-PSK(TKIP) can be connected
•
WPA2-PSK: WPA2-PSK(AES),WPA2-PSK(TKIP) can be connected
•
WPA2-Enterprise
Settings in SimpleAP mode (Factory default settings)
SSID
Passphrase
IP Address
Subnet mask
Parameter Setting value
EPSON_Printer
12345678
192.168.192.168
255.255.255.0
* In SimpleAP mode, DHCP Server is working and assigns IP address to host automatically.
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Appendix
Settings in Standard Mode
Parameter
Communication standard
Network mode
SSID
Encryption type
Passphrase
IP Address
Default setting
802.11b/g/n
Infrastructure mode
EPSON_Printer
WPA2-PSK
EpsonNet
Automatically acquired by DHCP
Printing communication protocol
•
LP, LPR: Transfers printing data
•
TCP Socket Port: Transfers printing data and printer status via bidirectional direct socket communication.
LP, LPR
•
Max. simultaneous connections: 6
•
Number of connections for which printing is available: 1 (Other users need to wait until printing is completed.)
•
Time out: 90 sec. (changeable)
•
Job cancel: Not available
•
Banner printing: Not available
Socket communication
•
Port type: TCP communication port for direct printing
•
Port number: 9100
•
Port communication direction: bidirectional
•
Max. simultaneous connections: 6
•
Number of connections for which printing is available: 1 (Other users need to wait until printing is completed.)
•
Time out: 90 sec. (changeable)
Notes on Using the Wi-Fi Model
•
Keep the printer away from the devices, such as kitchen microwaves, that may cause radio wave interference.
•
Use channels that are away from the frequency bands that may cause radio wave interference.
•
Place shields between the printer and the devices that may cause radio wave interference.
•
Select either 2.4 GHz or 5 GHz, whichever is free from radio wave interference.
•
In auto channel setting for the access point, do not select a channel in which the devices may cause radio wave interference.
93
Appendix
Notes on Wi-Fi connection
Because not all the combinations of the printer and Wireless LAN units have been checked for operation, the operation of the printer in combination with all the Wireless LAN units is not guaranteed. Especially in the adhoc mode, the printer may not operate normally, depending on the combination of the device to connect with. Be sure to carry out evaluation of the operation before use.
Notes on use
When you initialize or change the printer settings, the printer is reset to reflect the settings. It may take about one minute depending on the network settings or environment. Also, your application may indicate power off during the time waiting for reset. In that case, wait for about one minute, and then reconnect to the printer.
Where Wi-Fi communication is in heavy traffic, your application may falsely recognize that the communication is disconnected and indicate power off due to response delay. In that case, disable Power Save to improve the trouble.
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