EPSON TM-P20II Wireless Portable Receipt Printer User Guide

TM-P20II Wireless Portable Receipt Printer

Product Overview Setup Handling Advanced Usage Application Development Information Appendix
M00148900 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, WPA2TM, and WPA3TM are either registered trademarks or trademarks of Wi-Fi Alliance®. The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of
such marks by Seiko Epson Corporation is under license. IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license. Apple, Apple TV, Apple Watch, iPad, iPad Air, iPad Pro, iPhone, and Lightning are trademarks of Apple Inc., registered in the U.S. and other countries. tvOS is a trademark of Apple Inc. AndroidTM is a trademark of Google LLC. Google Play and the Google Play logo are trademarks of Google LLC. QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries. 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 2022.

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 injury or death.

DANGER

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.

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Cautions on Handling the Printer

DANGER WARNING
CAUTION

Do not use, charge, leave, or store the product at temperatures in excess of 60°C (140°F). Doing so may cause the product to leak, generate heat or smoke, rupture, or burst into flame.
Immediately remove the batteries from the printer or disconnect cables when a fault or other problem occurs, and contact qualified service personnel. Continued use may lead to fire or electric shock. · If the product emits smoke, a strange odor, or unusual noise. · If water or other liquid spills into the product. · If the product is too hot to touch or the case is deformed.
Note the following points to avoid accidents such as fire, electric shock, or burn. · Do not use this product where flammable fumes from gasoline, benzine, thinner, or other flammable liquids may be in the air. · Do not use aerosol sprayers containing flammable gas inside or around the product. · Do not cover the product with cloth, or place the product in locations subject to high levels of humidity or dust. · Do not allow foreign objects or flammable objects to fall into the equipment. · Do not touch the inside of the product except where mentioned in the manual. · Be sure to use the specified batteries. · Use a power supply that complies with the USB standard. · Do not connect cables in ways other than those mentioned in the manual. · Never disassemble or modify the product. · In airplanes, follow the instructions from the airline. Turn off wireless devices during takeoff and landing according to the in-flight announcement. · Do not use the product near medical equipment or in medical institutions. Radio waves may affect artificial cardiac pacemakers or other medical electrical equipment. · Do not use the product near automatic control equipment such as automatic doors and fire alarms. Doing so may cause malfunction due to radio waves, resulting in an accident.
Note the following points to avoid injury or malfunction. · Do not place heavy objects on top of the product. Never stand or lean on the product. · Do not press your hands or fingers against the cutter when removing printed paper or loading/replacing roll paper. · Never attempt to repair the product yourself.
To ensure safety, remove the batteries from the printer before leaving it unused for an extended period.

Battery Safety Precautions

DANGER

Risk of fire and burns. Do not expose the battery to fire or heat it. This may cause fire, explosion, leakage, overheating or damage.
Do not use or charge this product in high temperature places (60°C {140°F} or higher). Furthermore, do not leave or store this product in places that are 60°C {140°F} or higher. Doing so could lead to heat, smoke, ruptures, fire, or leaks.
Do not directly solder the battery, and do not disassemble or modify it. This may cause fire, explosion, leakage, overheating or damage.
Do not connect the terminals together. This may cause fire, explosion, leakage, overheating or damage.

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DANGER
WARNING CAUTION

Do not connect the battery directly to a power outlet or the cigarette lighter of an automobile. This may cause fire, explosion, leakage, overheating or damage.
If you cannot insert the battery smoothly, do not force it. This may cause fire, explosion, leakage, overheating or damage.
If any liquid from the battery gets into your eyes, promptly wash it out with clean water for more than 10 minutes and consult your doctor at once. If you do not, the liquid may cause loss of eyesight.
Do not crush. Do not crush the battery or puncture it with a pointed object such as a nail. These may cause fire, explosion, leakage, overheating or damage due to internal short-circuit and heat generation of the battery.
Unplug the charger if charging is still incomplete after the specified time it should take. Continuing to charge the battery may cause fire, explosion, leakage, overheating or damage.
Do not expose the battery to water. Do not allow water to contact the terminals. This may cause fire, explosion, leakage, overheating or damage.
Do not hit or throw the battery. This may cause fire, explosion, leakage, overheating or damage. Keep the battery away from fire or flame especially when it produces a strange odor or leakage.
Otherwise fire, explosion, leakage, overheating or damage may occur. Should any battery liquid get on skin or clothing, promptly wash it off with clean water. If you do
not, the liquid may damage your skin or clothing. Do not short the terminals with any metal objects such as a necklace. This may cause fire,
explosion, leakage, overheating or damage, which lead to burn or injury. Do not put the battery in a microwave oven or high-pressure container. Doing so may result in
electric shock or fire.
Keep the battery out of the reach of children to avoid harm to the children. Do not use or charge this battery with any device other than the specified one. Doing so may
cause fire, explosion, leakage, overheating or other damage. Do not use the battery if you find something wrong with it such as leakage, color change or
deformity. Using the charger may cause fire, explosion, leakage, overheating or damage.
Before using the battery, make sure that its terminals are clean without any foreign substance on them. Dirt and foreign substance on the terminals may cause fire, explosion, leakage, overheating or damage.
Do not touch the battery right after using it for a long time. It will be hot and may burn you. If the battery is used improperly, it may explode. Dispose of used batteries according to the instructions. Do not place the battery in a humid or dusty place. Doing so may result in malfunction or fire.

5

Cautions for Use and Storage of the Battery

CAUTION

Charge the battery before using it. Immediately after purchase, the battery is not fully charged. Do not pull or push the battery hook forcefully. Keep the battery terminals clean, so that no dirt or foreign material becomes attached. When cleaning the battery, do not use any solvents, such as alcohol, benzine, or thinner. Doing
so may deform or damage the plastic sections. Wipe off any dirt using a dry cloth. The battery slowly loses power while it is not being used. When charging the battery, charge it in an environment that is between 10°C and 30°C. To
prevent deterioration in the battery performance, avoid direct sunlight, high temperatures, and high humidity, and store it in a cool location (around 20°C). If storing it for a long period of time, remove it from the printer or battery charger. Also, to prevent deterioration in its performance, we recommend that you charge it approximately once per year. Guide for charging: Battery charge status Level L. For details about the charge level, refer to the printer’s User’s Manual. If the battery life is remarkably short, the battery may have expired. Replace it with a new battery.

Transportation of the Battery
In transportation of the battery, make sure to follow the latest UN recommendations.
Recycling the Batteries
This battery is a lithium-ion battery. Must be recycled or disposed of properly.

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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.
Open Source Software License (Wi-Fi model)
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/PRESENTATION/ADVANCED/LICENSE/TOP For “xxx.xxx.xxx.xxx” in the above URL, input your printer’s IP address.
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Notes on Wi-Fi/Bluetooth® Interfaces
Effects of Radio Wave Radiation on the Environment
This product is equipped with a radio module that has been certified as a radio facility for low-power data communication systems based on the Radio Law. The electromagnetic energy emitted by the radio module in this product is much lower than that emitted by other wireless devices (such as cell phones). However, in certain environments where there is a risk of interference to other devices or services, the use of this product may be restricted by the owner of the building or person in charge of the organization. In a particular environment, such as in an airport, if you are not sure whether the use of your wireless device will be restricted, inquire about permission to use this product before turning it on.
Notes on Interference
· When setting up or using this product, be sure to follow the instructions in this manual. Setting up or using this product without following this manual may cause harmful interference to other wireless communications.
· If this product causes harmful interference to radio or television reception, the user is encouraged to try to correct the interference by one or more of the following measures. – Change the direction and location of the TV/radio receiving antenna – Install the product away from the TV/radio – Connect this product to an outlet other than the one to which the TV/radio is connected – Talk to an experienced radio/TV technician
· Please take the following points into consideration when using the product in an environment where there are devices that generate radio interference, such as microwave ovens. – Install the product as far away as possible from devices that may cause radio interference. – Use channels that are away from frequency bands that cause radio interference. – Install a shielding board between this product and devices that generate radio wave interference. – Use a frequency band that will not cause interference, either 2.4 GHz or 5 GHz. – When setting the auto channel of the access point, make sure that this product is not set to a channel that causes radio interference.
· Do not attempt to disassemble or modify this product. We assume no responsibility whatsoever for any harmful interference to other wireless communications caused by unauthorized modification.
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Notes on Wireless LAN Connection
This product has not been confirmed to work with all wireless LAN devices, and operation with all wireless LAN devices is not guaranteed.
Notes on Wireless LAN Security
The following are important matters concerning your rights (privacy protection). Instead of using LAN cables, wireless LANs use radio waves to exchange information, which has the advantage of allowing free LAN connections within the range of the radio waves. On the other hand, radio waves can reach anywhere within a certain range, even over obstacles (walls, etc.), so if no security settings are made, the following problems may occur.
Having your information stolen
There is a possibility that a malicious third party may intentionally intercept radio waves and steal personal information such as IDs, passwords or credit card numbers, as well as communication contents such as the contents of emails.
Access from unauthorized users
A malicious third party may gain unauthorized access to your personal or company network to do the following. · Taking out personal or confidential information (information leakage) · Communicating by impersonating a specific person and distributing fraudulent information (spoofing) · Rewriting and sending intercepted communications (tampering) · Destroy data and systems by spreading computer viruses, etc. (Destruction) Essentially, wireless LAN cards and wireless access points have a security mechanism to deal with these problems, so by using the product with the settings related to the security of the wireless LAN product, the possibility of such problems occurring will be reduced. It is recommended that you fully understand the problems that may occur if you do not configure the security settings, and use the product after configuring the security settings at your own discretion and responsibility.
Notes on SSID (Service Set Identifier) Settings
For security reasons, please observe the following precautions regarding SSID settings. · Make sure to change the SSID from the default setting. · Do not set the SSID to a string that can identify the owner.
Notes on Setting the Encryption Key
For security reasons, please observe the following precautions when setting the encryption key. · Avoid using words from the dictionary as much as possible. · Combine meaningless alphanumeric characters and symbols. · Use a string of at least 13 characters, preferably 20 characters or more.
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Manuals for This Product

The following manuals are available for this product.

Paper manual

Manuals, such as Setup Guide, included in the product package
Explains how to install and set up this product, from checking the bundled items. Precautions for handling this product are also provided. To ensure safe and correct use and to prevent harm to you or others, or damage to property, please read the paper manuals before using the product.

Manuals viewed on computers and smart devices

User’s Manual
Describes the functions of this product, how to operate it, information on maintenance, and how to solve various problems. In addition to the URL below, you can also access it from the QR code attached to the product itself. https://www.epson-biz.com/?prd=tm-p202&inf=manual-ww

Manuals viewed on computers

TM-P20II Technical Reference Guide (this manual)
Describes information necessary to set up this product, perform daily tasks, and develop your own system.

Manuals viewed on computers and smart devices

Web video manual Explains in an easy-to-understand manner how to set up this product and how to connect this product via Wi-Fi or Bluetooth. You can access the manual from the URL below. https://www.epson- biz.com/?prd=tm-p202&inf=video The contents of the videos are subject to change without notice.

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About this Manual

Aim of the Manual
This manual was created to provide information on development, design, and installation of POS systems and development and design of printer applications for developers.

Manual Content

The manual is made up of the following sections:

Chapter 1

Product Overview

Chapter 2

Setup

Chapter 3

Handling

Chapter 4

Advanced Usage

Chapter 5

Application Development Information

Appendix

Product Specifications Specifications of Interface Character Code Tables

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Contents
For Safety………………………………………………………………………………………………………………….3
Key to Symbols……………………………………………………………………………………………………………………………………………… 3 Cautions on Handling the Printer ……………………………………………………………………………………………………………… 4 Battery Safety Precautions………………………………………………………………………………………………………………………….. 4 Cautions for Use and Storage of the Battery……………………………………………………………………………………………. 6 Transportation of the Battery …………………………………………………………………………………………………………………….. 6 Recycling the Batteries………………………………………………………………………………………………………………………………… 6
Restriction of Use ……………………………………………………………………………………………………..7 Open Source Software License (Wi-Fi model) ………………………………………………………….7 Notes on Wi- Fi/Bluetooth® Interfaces ………………………………………………………………………8
Effects of Radio Wave Radiation on the Environment ……………………………………………………………………………. 8 Notes on Interference………………………………………………………………………………………………………………………………….. 8
Notes on Wireless LAN Connection ………………………………………………………………………….9
Notes on Wireless LAN Security …………………………………………………………………………………………………………………. 9 Notes on SSID (Service Set Identifier) Settings………………………………………………………………………………………… 9 Notes on Setting the Encryption Key………………………………………………………………………………………………………… 9
Manuals for This Product ………………………………………………………………………………………. 10 About this Manual ………………………………………………………………………………………………… 11
Aim of the Manual ………………………………………………………………………………………………………………………………………11 Manual Content…………………………………………………………………………………………………………………………………………..11
Contents………………………………………………………………………………………………………………… 12
Product Overview ……………………………………………………………………………… 16
Features ………………………………………………………………………………………………………………… 16 Product Configurations ………………………………………………………………………………………… 18
Models…………………………………………………………………………………………………………………………………………………………..18 NFC Tag …………………………………………………………………………………………………………………………………………………………18 Buzzer ……………………………………………………………………………………………………………………………………………………………18 Accessories …………………………………………………………………………………………………………………………………………………..18 Consumables and Options ………………………………………………………………………………………………………………………..18
Part Names and Functions ……………………………………………………………………………………. 19
Body ………………………………………………………………………………………………………………………………………………………………19 Operation Panel…………………………………………………………………………………………………………………………………………..20 Online and Offline……………………………………………………………………………………………………………………………………….23
Power Supply Function …………………………………………………………………………………………. 24
Auto Power-Off ……………………………………………………………………………………………………………………………………………24 Battery Charge Mode………………………………………………………………………………………………………………………………….24 Operation Mode When Battery is Low …………………………………………………………………………………………………….25 Desktop Mode……………………………………………………………………………………………………………………………………………..26
Status and Errors …………………………………………………………………………………………………… 27
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Status Display ………………………………………………………………………………………………………………………………………………27 Battery Charge Indication ………………………………………………………………………………………………………………………….28 Network Connection Status (Wi-Fi model) ……………………………………………………………………………………………..28 Bluetooth Connection Status (Bluetooth model)…………………………………………………………………………………..29 Error Status …………………………………………………………………………………………………………………………………………………..29
NV Memory (Non-Volatile Memory) ……………………………………………………………………… 30
NV Graphics Memory………………………………………………………………………………………………………………………………….30 User NV memory …………………………………………………………………………………………………………………………………………30 Memory Switches (customized values)……………………………………………………………………………………………………30 Maintenance Counter…………………………………………………………………………………………………………………………………30
Useful Functions for Smart Devices………………………………………………………………………. 31
NFC Tag …………………………………………………………………………………………………………………………………………………………31 QR Code………………………………………………………………………………………………………………………………………………………..31
Printing Using Multiple Interfaces………………………………………………………………………… 32
Setup ………………………………………………………………………………………………… 33
Placing or Hanging the Printer ……………………………………………………………………………… 33
Placing the Printer on a Flat Surface ………………………………………………………………………………………………………..33 Hanging the Printer from a Belt ………………………………………………………………………………………………………………..34
Installing the Battery…………………………………………………………………………………………….. 35
How to Install the Battery ………………………………………………………………………………………………………………………….35 How to Remove the Battery ………………………………………………………………………………………………………………………35
Charging the Battery …………………………………………………………………………………………….. 36
Charging the Battery using the Included USB Cable …………………………………………………………………………….36 Charging the Battery with the Optional Battery Charger……………………………………………………………………..37
Turning the Power On/Off …………………………………………………………………………………….. 38
Turning the Power On ………………………………………………………………………………………………………………………………..38 Turning the Power Off ………………………………………………………………………………………………………………………………..38
Installing Roll Paper………………………………………………………………………………………………. 39
How to Open the Roll Paper Cover …………………………………………………………………………………………………………..39 How to Close the Roll Paper Cover …………………………………………………………………………………………………………..40 Installing or Replacing the Roll Paper………………………………………………………………………………………………………41
Connecting the Printer to the Host Device …………………………………………………………… 43
USB Interface ……………………………………………………………………………………………………………………………………………….43 Bluetooth Interfaces (Bluetooth model)………………………………………………………………………………………………….43 Wi-Fi Interface (Wi-Fi model) …………………………………………………………………………………………………………………….47
Handling …………………………………………………………………………………………… 52
Cleaning………………………………………………………………………………………………………………… 52
Cleaning the Printer Case…………………………………………………………………………………………………………………………..52 Cleaning the Thermal Head……………………………………………………………………………………………………………………….53
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Cleaning the Platen Roller and Paper Detector ……………………………………………………………………………………..54
Troubleshooting……………………………………………………………………………………………………. 55
When the Roll Paper Jams………………………………………………………………………………………………………………………….55 Printout is Faint ……………………………………………………………………………………………………………………………………………56 Cannot Print …………………………………………………………………………………………………………………………………………………56
Advanced Usage ……………………………………………………………………………….. 57
Software Settings………………………………………………………………………………………………….. 57
Overview of Each Function………………………………………………………………………………………………………………………..58
MAC Address Confirmation…………………………………………………………………………………… 66 Setting/Check Modes ……………………………………………………………………………………………. 67
Self-test Mode ……………………………………………………………………………………………………………………………………………..69 NV Graphics Information Print Mode……………………………………………………………………………………………………….70 Software Setting Mode ………………………………………………………………………………………………………………………………71 Restore Default Values Mode…………………………………………………………………………………………………………………….73 Interface Setup Mode…………………………………………………………………………………………………………………………………74 Radio field intensity check mode (Wi-Fi model) …………………………………………………………………………………….78 Hexadecimal Dumping Mode …………………………………………………………………………………………………………………..79
Printing a Status Sheet………………………………………………………………………………………….. 80 Web Config ……………………………………………………………………………………………………………. 82
How to Start Web Config……………………………………………………………………………………………………………………………82 What can be Configured in Web Config ………………………………………………………………………………………………….83
Application Development Information………………………………………………. 84
Controlling the Printer ………………………………………………………………………………………….. 84
ePOS-Print XML……………………………………………………………………………………………………………………………………………84 ESC/POS ……………………………………………………………………………………………………………………………………………………….. 84
Software………………………………………………………………………………………………………………… 85
Development Kit …………………………………………………………………………………………………………………………………………85 Drivers …………………………………………………………………………………………………………………………………………………………..86 Utilities ………………………………………………………………………………………………………………………………………………………….86 Others……………………………………………………………………………………………………………………………………………………………87 Download …………………………………………………………………………………………………………………………………………………….87
Precautions when Developing Applications ………………………………………………………… 88
Notes on Printing Barcodes and Two-Dimensional Symbols ……………………………………………………………….88 Application Development and Distribution for iOS (Bluetooth model) …………………………………………….88
Appendix…………………………………………………………………………………………… 89
Product Specifications ………………………………………………………………………………………….. 89
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Printing Specifications ………………………………………………………………………………………….. 90 Character Specifications ……………………………………………………………………………………….. 91 Paper Specifications ……………………………………………………………………………………………… 93 Printing Area …………………………………………………………………………………………………………. 95 Print Position and Manual Cut Position ………………………………………………………………… 96 Electrical Characteristics……………………………………………………………………………………….. 97 Reliability………………………………………………………………………………………………………………. 98 Environmental Conditions ……………………………………………………………………………………. 99 External Dimensions …………………………………………………………………………………………… 101 Specifications of Interface…………………………………………………………………………………… 102
USB Interface ……………………………………………………………………………………………………………………………………………. 102 Network Interface (Wi-Fi model) …………………………………………………………………………………………………………… 103 Bluetooth Interface (Bluetooth model)………………………………………………………………………………………………… 106 NFC Tag ……………………………………………………………………………………………………………………………………………………… 109
Character Code Tables…………………………………………………………………………………………. 110
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Chapter 1 Product Overview
Product Overview
This chapter describes the features and overview of the product.
Features
TM-P20II is a thermal mobile printer. The main features of this product are as follows.
Printing
· Maximum printing speed is 100 mm/s. · Supports a wide variety of languages (ANK (including Thai) / Japanese (JIS 1st, 2nd, 3rd, 4th levels) /
Simplified Chinese / Traditional Chinese / Korean) controlled by UTF-8
Printer handling
· Compact and lightweight (Wi-Fi model weighs approx. 223 g {0.49 lb}, Bluetooth model weighs approx. 216 g {0.48 lb})
· Can be used for a long time with a battery (approx. 15 hours for Wi-Fi model, approx. 27 hours for Bluetooth model)
· Wi-Fi models offer Wi-Fi (IEEE802.11a/b/g/n/ac) function as standard. · Bluetooth models offer Bluetooth function as standard.
Bluetooth 5.0 Dual mode: Outside Brazil /Bluetooth Dual mode: Brazil · Wi-Fi or Bluetooth connection status can be easily checked by viewing respective LED lights. · IP54 compliant water and dust resistance · Equipped with a USB (Type-C) interface as standard. · Withstands the impact of a fall from a height of 210 cm {82.68 in.} (Compliant with JIS C60068-2-31: 2013
(IEC 60068-2-31: 2008)) · Easy drop-in paper loading · Belt clip for improved portability in a mobile environment · A utility for iOS/AndroidTM (Epson TM Utility) for making printer settings is provided.
Functions
· Offers network connection check function. (Wi-Fi model) · Information necessary for connecting to the printer can be obtained using the NFC tag built in the printer or a
QR code printed on a status sheet. · It is possible to perform printing operations by scanning a barcode with a smart device’s camera. · Printing is possible through multiple built-in interfaces. See “Printing Using Multiple Interfaces” on page 32
for more details.
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Chapter 1 Product Overview
· 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.
Environment
· Offers a paper-saving function.
17

Chapter 1 Product Overview
Product Configurations
Models
· Wi-Fi model (Wi-Fi + USB) · Bluetooth model (Bluetooth + USB)
NFC Tag
By bringing an NFC-compatible device close to the NFC tag on the printer, you can use the function to select the printer to print from. There is a limit to the distance over which communication is possible. See “NFC Tag” on page 109.
· Data in the NFC tag cannot be rewritten. · Use Epson ePOS SDK to build this function into your application.
Buzzer
The printer has built-in buzzer function.
Accessories
· Roll paper for operation check · Battery (OT-BY20) · Belt clip (already attached to printer) · USB-C cable (Type-C to Type-C, approx. 1.0 m long) · Manuals
Consumables and Options
· Battery (Model number: OT-BY20) · Single battery charger (Model number: OT- SB20II) · Quadruplet battery charger (Model number: OT-CH20II) · Soft case (Model number: OT-PC20II) · Belt strap (Model number: OT-BE01) · Shoulder strap (Model number: OT-SH01)
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Part Names and Functions
Body

Chapter 1 Product Overview

1 Roll paper cover 2 USB-C connector 3 Cover open lever 4 Operation panel 5 Manual cutter 6 Belt clip 7 Battery
8 NFC Tag

Open this cover when installing or replacing the roll paper.
Connects a USB-C cable.
Operate this lever to open the roll paper cover.
There are buttons to operate the printer and LEDs to display the printer status.
A cutter for cutting roll paper.
A clip for hanging the printer from a waist belt.
Provides electricity to the printer. The printer does not work without the battery installed.
A mark is printed here to indicate the position of the NFC tag. Bring an NFC- compatible device close to the mark to obtain information about the printer. For the functions using the NFC tag, refer to “Useful Functions for Smart Devices” on page 31.

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Operation Panel
Wi-Fi model

Chapter 1 Product Overview Bluetooth® model

Power button Feed button Power LED Error LED Charge LED Battery LED Wi-Fi LED Bluetooth LED

This button turns the printer on or off. Press this button once to feed the roll paper for one line. Hold down this button to continue feeding the roll paper. This turns on when the printer is on. Turns on when the printer is temporarily unable to print, such as when no roll paper is loaded or the roll paper cover is open. Flashes when an error occurs. Indicates whether the battery is charging or not.
Indicates remaining battery charge.
Turns on when the printer is connected to Wi-Fi. Turns on when the printer is connected via Bluetooth.

Buttons
(Power) button
This button turns the printer on or off.
· To turn on the printer, press the power button for about one second and release it when the power LED lights up.
· To turn off the printer, press the power button for about two seconds and release it when the power LED goes off or starts flashing.
· After pressing the power button, it takes approximately the following time for the printer to initialize. This does not include the time it takes for communication to be established. Wi-Fi model: Approx. 5 seconds after the power LED lights up Bluetooth model: Approx. 5 seconds after the power LED lights up
· When turning on the power again immediately after turning off the power, make sure that all LEDs are off before turning on the power again.
· Always use the power button when turning off the power. If the battery is removed while the power is on, the maintenance counter value will not be updated correctly.
· If you want to turn off the printer without using the power button, it is recommended that you send the command to execute the power-off process to the printer before turning it off. This will save the latest maintenance counter values. The maintenance counter values are usually saved every two minutes. For more information about the command, see the ESC/POS Command Reference.

20

Chapter 1 Product Overview
Feed Button
Press this button once to feed the roll paper for one line. Hold down this button to continue feeding the roll paper.
The function of the paper feed button can be disabled (inoperative). Refer to the ESC/POS Command Reference for more details.

LED

If a charged battery is not installed in the printer, the printer will not operate and the LED will not light.

Power LED (Blue)
· Stays on while the printer is on. · Stays off while the printer is off. · Flashes when the printer is in the following conditions.
· Power-off standby process is in progress or power-off process is in progress · Updating the firmware · Starting up the network, or link-down · Resetting the printer or the communication settings is in progress · Network warning error
Error LED (Orange)
· Lights or flashes when an error occurs. For information about the flashing patterns, see “Status and Errors” on page 27.
· 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.
· Off when the printer is in standard mode (online). · Lights up when the battery level is at the E level or when there is no battery remaining. See “Operation Mode
When Battery is Low” on page 25 for information about the battery level.

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Chapter 1 Product Overview

Battery LED
Three LEDs indicate the battery level. These LEDs will not light unless you turn on the printer. See “Operation Mode When Battery is Low” on page 25 for information about the battery level.

Battery LED

Battery Level H level M level L level S level E level

: ON
Description

: Flashing

: OFF

You can continue to use the printer.

You can continue to use the printer.
You can continue to use the printer, but we recommend recharging the battery or replacing it with a charged battery.
Charge or replace the battery.

Charge or replace the battery.

· A buzzer can be activated when the battery level reaches the L or S level. The buzzer setting can be made using TM-P20II Utility or in the software setting mode. See “Software Settings” on page 57 for more details.
· When the battery level reaches the E level, the error LED lights up.
Charge LED
Indicates whether the battery is charging or not. · Stays on while the battery is charging. · Flashes when there is an abnormality in battery charging. · Turns off when the battery charge is complete and stays off while the battery is fully charged.
Wi-Fi LED
· Lights when the printer is connected to Wi-Fi and ready for communication. · Flashes when the printer is temporarily unable to communicate, such as when it is obtaining an IP address
after being connected to Wi-Fi. · Off while the printer is not connected to Wi-Fi.
Bluetooth LED
· Lights while the printer is connected via Bluetooth. · Flashes while the printer is waiting to be paired with another device. · Off while the printer is not connected via Bluetooth.

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Chapter 1 Product Overview
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 roll paper is fed using the Feed button · When the printer stops printing due to a paper end (when the paper out detector detected the paper out) · During an operation standby state · When an error has occurred (See “Status and Errors” on page 27) · While the roll paper cover is open · When the battery level is at the E level or when there is no battery remaining
· The Error LED is lit while offline, but flashes when an error occurs. · See “Operation Mode When Battery is Low” on page 25 for information about the battery level. · A buzzer can be set to sound when the printer runs out of roll paper, an error occurs, or the bat-
tery power is low. The buzzer setting can be made using TM-P20II Utility or in the software setting mode. See “Software Settings” on page 57 for more details.
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Chapter 1 Product Overview
Power Supply Function
The auto power-off function and battery charging mode can be used to reduce battery consumption or minimize battery degradation.
At low temperatures, battery performance is reduced. This is temporary and performance will be restored when the battery is returned to room temperature.
Auto Power-Off
The auto power-off function automatically turns off the printer if all of the following conditions are met after a certain period of time. · Printing is not in progress. · Paper is not being fed. · Cover open/close operation is not in progress. · No button is being pressed. · No command is being received (receive buffer is empty) *Except for real-time commands. · Bluetooth pairing is not in progress. (Bluetooth model) The time for auto power-off can be set from 0 (disabled) to 60 minutes (in one-minute increments). The default setting is “0” (disable).
· The auto power-off setting can be made using TM-P20II Utility or in the software setting mode. See “Software Settings” on page 57 for more details.
· This function does not work when the USB interface is connected (the printer does not automatically turn off ).
· The time set is the time to start the power off process, not the time when the power is turned off.
Battery Charge Mode
There are two battery charge modes for charging the battery: Mode 1 and Mode 2. The default setting is Mode 1.
The battery charge mode can be changed using TM-P20II Utility or in the software setting mode. See “Software Settings” on page 57 for more details.
Mode 1
Charging begins when the battery level drops to approximately 80%. Controls the battery level so that it is always fully charged.
Mode 2
Charging begins when the battery level drops to 67% and continues charging until it reaches 80%. Mode 2 is recommended when the printer is constantly connected to a USB charging adapter or computer. The number of times the battery needs to be recharged is reduced and battery degradation is mitigated.
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Chapter 1 Product Overview

Operation Mode When Battery is Low
There are two modes of operation when the battery is low: Mode 1 and Mode 2. The default setting is Mode 1.
· The operation mode when battery is low can be changed using TM-P20II Utility or in the software setting mode. See “Software Settings” on page 57 for more details.
· The battery level is detected before printing begins, and the displayed level is subsequently updated. The battery LED does not indicate real-time battery level.
· When the battery level reaches the “L” level, it is recommended to recharge the battery or replace it with a charged battery.
· When the battery level reaches the “S” or “E” level, recharge the battery or replace it with a charged battery.
· A buzzer can be activated when the battery level reaches the L or S level. The buzzer setting can be changed using TM-P20II Utility or in the software setting mode. See “Software Settings” on page 57 for more details.

Mode 1
Allows you to print until the battery runs out.

Level

Battery LED

Error LED

Battery Level

: ON

: Flashing

: OFF

Printing

Communication

H

(Off )

Approx. 100 to 60%

Possible

Possible

M

(Off )

Approx. 60 to 20%

Possible

Possible

L

(Off )

Approx. 20 to 10%

Possible

Possible

S

(Off )

Less than approx. 10%

Possible*

Possible

E

(On)

Approx. 0%

Not possible Not possible

Printing is possible, but printing may stop halfway through. Print quality cannot be guaranteed.

Mode 2
Printing stops when the remaining battery level falls below approximately 10%.

Level

Battery LED

Error LED

Battery Level

: ON

: Flashing

: OFF

Printing

Communication

H

(Off )

Approx. 100 to 60%

Possible

Possible

M

(Off )

Approx. 60 to 40%

Possible

Possible

L

(Off )

Approx. 40 to 20%

Possible

Possible

S

(Off )

Approx. 20 to 10%

Possible

Possible

E

(On)

Less than approx. 10% Not possible Not possible

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Chapter 1 Product Overview
Desktop Mode
Enabling the desktop mode may speed up the printing speed. Disabling it will change the line feed speed according to the battery level. The default setting is “Disable”. Enabling the mode is recommended when the printer is constantly connected to USB charging adapter or computer.
The desktop mode can be set using, TM-P20II Utility or in the software setting mode. See “Software Settings” on page 57 for more details.
26

Status and Errors
The status of the printer is indicated by lit and flashing LEDs.
You cannot print when an error has occurred.

Chapter 1 Product Overview

You cannot identify the error by the flashing patterns of the LEDs. Develop the application so that users can identify the error description and check the solutions.

Status Display

Power Error Charge

LED LED

LED

Battery LED

O: ON k: Flashing N: OFF -: Ignore the LED light

Wi-Fi Bluetooth

LED

LED

Printer status

O

N

–

–

–

Online (normal state)

O

O

–

O

N

While initializing after turning on the power

O

N

–

–

N

Self-testing in progress

k *1

N

–

–

N

Waiting for the self-test to continue

O

N

–

–

–

Paper is being fed with the paper feed button

k *1

N

–

–

–

Waiting for a Macro execution to run

O

O

–

–

–

Roll paper cover opened when not printing

O

O

–

–

–

No roll paper

O

O

–

–

–

Automatically recoverable error

O

O

–

–

–

Recoverable error

O

k *1

–

N

Unrecoverable error N
Turn off the power immediately.

k *1

N

–

N

N

Updating the firmware (Wi-Fi model)

O

k *2

–

N

N

Updating the firmware (Bluetooth model)

k *1

O

–

N

N

Power-off standby process is in progress or

power-off process is in progress

O

N

–

–

k *1

Starting up the network + link-down display

k *1

N

–

–

–

Resetting the printer or the communication settings is in progress

1: The LED flashing pattern is: lighting for 320 ms followed by a pause for 320 ms. 2: The LED flashing pattern is: lighting for 320 ms followed by a pause for 320 ms. After repeating it twice, lights up for 640 ms and goes
off.

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Chapter 1 Product Overview

Battery Charge Indication
The status of the battery charge is indicated as follows.

When Printer is On

When Printer is Off

Power Error Charge Power Error Charge

LED LED LED

LED LED LED

O: ON k: Flashing N: OFF
Battery status

O

N

O

N

N

O

Charging (0-40°C)

O

N

N

The battery is fully charged or does not need to be

N

N

N

charged

O

N

k

O

O

k

Outside the chargeable temperature range: -20 (not including -20) to less than 0°C, or 40 (not including 40) to less than 55°C

N

N

k

Battery high temperature error (55°C or higher)

Battery low temperature error (-20°C or lower)

Battery failure

· Battery charging should be performed under ambient temperatures within the guaranteed operating range of 0 to 40°C (32 to 104°F).
· Charging will stop if the ambient temperature is outside the chargeable temperature range (below 0°C or above 40°C).
· When charging in an environment of 35°C or higher, the charging time may be extended because the internal temperature rise is detected and charging is stopped and started repeatedly.
· If the battery is not fully charged after approximately 5 hours of charging, it is assumed that the battery is faulty and the Charge LED will flash. The battery cannot be used and should be replaced with another battery.

Network Connection Status (Wi-Fi model)

Wi-Fi LED

Printer status

O: ON k: Flashing N: OFF

O

The printer is connected to Wi-Fi and ready for communication.

The printer is temporarily unable to communicate, such as when it is obtaining an IP address k
after being connected to Wi-Fi.

N

Not connected to a network

The LED flashing pattern is: lighting for 320 ms followed by a pause for 320 ms.

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Chapter 1 Product Overview

Bluetooth Connection Status (Bluetooth model)

Bluetooth LED

Printer status

O

Connecting via Bluetooth

k

Waiting to be paired with a device

N

Not connected via Bluetooth

The LED flashing pattern is: lighting for 320 ms followed by a pause for 320 ms.

O: ON k: Flashing N: OFF

Error Status
When an error occurs, the printer goes offline and the error LED flashes. There are three types of errors depending on the recovery method: automatically recoverable errors, recoverable errors, and unrecoverable errors.

Automatically Recoverable Errors
If an automatically recoverable error occurs, printing is not possible. The printer can recover from the errors as described below.

Error

Description

Recovery

Print head high temperature error

Head temperature exceeded the proper The printer recovers from the error when

range (high temperature).

the head temperature drops.

Cover open error in the middle of printing

The roll paper cover was opened during printing.

The printer recovers from the error when the roll paper cover is closed.

Motor driver IC high temperature error

Motor driver IC temperature exceeded the proper range (high temperature).

The printer recovers from the error when the motor driver IC temperature drops.

Battery high temperature error

Battery temperature exceeded the proper range (high temperature).

The printer recovers from the error when the battery temperature drops.

Battery low temperature error

Battery temperature is below the proper The printer recovers from the error when

range (low temperature).

the battery temperature rises.

Unrecoverable Errors
These include a high voltage error, CPU execution error, and communication unit error. If the error persists after turning the printer off and then on again, the printer may be defective. Contact your qualified service personnel.
If an unrecoverable error occurs, immediately turn off the power and remove the battery.

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Chapter 1 Product Overview
NV Memory (Non-Volatile Memory)
The printer’s NV memory stores 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 values) · Maintenance counter
As a guide, NV memory rewriting should be used 10 times or less a day when you program applications.
NV Graphics Memory
Graphics, such as shop logos to be printed on receipts, can be registered. To register your graphics data, use TM-P20II Utility or ESC/POS commands. You can check registered graphics data using TM-P20II Utility or by printing the data in the NV graphics information print mode.
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 values)
With the memory switches, which are software switches for the printer, you can configure various settings of the printer. For information about the memory switch, see “Software Settings” on page 57.
Maintenance Counter
With this function, printer information, such as the number of lines printed, and printer operation time after the printer starts working, is automatically stored in printer’s memory. You can read the counter information to use it for periodical checks or part replacement.
· You can also check the head running length with the self-test (see “Self- test Mode” on page 69). · The maintenance counter values are automatically saved in the NV memory usually every two
minutes (up to four minutes). However, the values are not saved when the printer is in powersaving mode or when it is turned off without the use of the Power button. · Do not remove the battery when the printer is on. Doing so will cause the maintenance counter value to be incorrectly updated.
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Chapter 1 Product Overview
Useful Functions for Smart Devices
You can easily connect the printer to the network by using the NFC tag built- in to the printer or the QR code printed on the status sheet.
NFC Tag
Bring a smart device that supports NFC close to the NFC tag to acquire the printer information (information for specifying the device). By using the acquired information, the device can specify the printer to send a print job over a network or Bluetooth.
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). By using the acquired information, the device can specify the printer to send a print job over a network or Bluetooth.
· Programming using Epson ePOS SDK is required to use these functions. These functions can be achieved by combining NFC touch and QR code scanning operations with the identification of target printers using the Printer Easy Selection API. 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 reading an NFC tag and capturing a QR code.
· You can try a demo of these functions by using Epson TM Utility.
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Chapter 1 Product Overview
Printing Using Multiple Interfaces
The printer offers multiple interfaces and allows you to use all of them without limitation. You can use this function to temporarily connect a smart device to a nearby printer and print. The printer provides each interface with an independent receive buffer and switches the active interface depending on the priority, while handling data in each receive buffer. You can set one interface for the main connection. Data received from the main connection interface is handled with the highest priority. By default, the interface that first receives data is set as the main connection interface; however, you can select the main connection interface in advance. When the receive buffer for the active interface becomes empty and a preset time period (one second by default) has passed, switching to another interface is enabled, and an interface that receives print data becomes active.
When you do not use the Bluetooth function, set the Bluetooth security level to “Middle” or “High” to prevent unauthorized access to the printer over Bluetooth. You can change the security level by using Epson TM Utility, TM- P20II Utility, or in the Interface Setup mode. You can select the main connection interface and set the time to enable interface switching from the software settings. For details on software settings, see “Software Settings” on page 57.
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Chapter 2 Setup

Setup

This chapter describes the installation and setup procedures for the printer and peripheral devices required before using the printer.

Placing or Hanging the Printer

The printer can be placed on a horizontal surface such as a desk or hung vertically from your belt using the belt clip of the printer.

Placing the Printer on a Flat Surface

Hanging the Printer from a Belt

Placing the Printer on a Flat Surface
When using the printer on a flat surface, it is recommended to remove the belt clip from the printer. Remove the belt clip as shown below.
Do not repeatedly attach and detach the belt clip. The screw hole may be damaged and the belt clip may not be securely fastened.
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Chapter 2 Setup
Hanging the Printer from a Belt
By attaching the belt clip to your belt, you can hang the printer from your waist. Hang the printer vertically with its operation panel facing up.
· Before use, make sure the belt clip is securely fastened to the printer and is not loose. Looseness may cause the printer to drop, resulting in injury or accident.
· Be careful not to drop the printer when hanging it with the belt clip.
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Chapter 2 Setup

Installing the Battery

The printer does not work without the battery installed.

WARNING

Always use a OT-BY20 battery. Use of batteries other than OT-BY20 may result in fire, explosion, leakage, overheating, or other damage.

· Be sure to turn off the printer before removing the battery. · Dispose of used batteries according to your local instructions.

How to Install the Battery
Insert the battery so that its tabs engage with the grooves on the printer, and fit it in until it clicks into place.

See “Charging the Battery” on page 36 for instructions on how to charge the battery.
How to Remove the Battery
1 Turn off the printer. 2 While pushing the battery hook, raise the battery and remove it.

35

Charging the Battery

Chapter 2 Setup

Charging the Battery using the Included USB Cable
· When charging the battery, install the battery to the printer. · Charge the battery in an environment of approximately 0 to 40 °C (32 to 104 °F).
· When the printer is used for the first time, the battery needs to be charged for approximately 3 hours.
· Use a USB Type-C power adapter or USB port that complies with the USB Type-C Standard. · Only USB Type-C standard power mode is supported. The charging time varies depending on
the power supply capability and settings of the USB power adapter and port. U”Electrical Characteristics” on page 97
1 Connect the included USB-C cable to the printer. 2 Connect the USB-C cable to a commercially available USB power adapter or
computer.
3 The charge LED lights up when charging starts. If the battery level is close to full, charging will not start. Check the battery level with the battery LED. U”Battery LED” on page 22
4 The charge LED turns off when charging is complete.

5 Disconnect the USB-C cable from the printer.
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Chapter 2 Setup
Charging the Battery with the Optional Battery Charger
By using the optional battery charger, the battery removed from the printer can be charged alone. OT-SB20II
OT-CH20II
For more information, see the User’s Manual of the battery charger from the link below. U https://www.epson-biz.com/?prd=ot-sb202&inf=manual
37

Turning the Power On/Off

Chapter 2 Setup

Turning the Power On
Press the power button for about one second and release it when the power LED lights up.

Turning the Power Off

Press the flashing.

power button for about two seconds and release it when the

power LED goes off or starts

38

Chapter 2 Setup
Installing Roll Paper
Be careful not to touch the manual cutter when opening or closing the roll paper cover. The manual cutter may injure your hand.
How to Open the Roll Paper Cover
Press the cover open lever to open the roll paper cover.
39

Chapter 2 Setup
How to Close the Roll Paper Cover
Press both sides of the roll paper cover and close it tightly until it clicks into place.
If both ends of the roll paper cover are not closed tightly, it may cause printing defects.
40

Chapter 2 Setup
Installing or Replacing the Roll Paper
Follow the steps below to install or replace the roll paper.
· Be careful not to touch the manual cutter when installing or removing the roll paper. The manual cutter may injure your hand.
· Make sure you use a specified roll paper type. · Before installing the roll paper, take up any slack in the roll paper by pulling its leading edge. If
you install a slack roll paper, a paper jam or print quality problems may occur. · Before installing the roll paper, make sure that the roll paper is not deformed. Using a deformed
roll paper will cause the printer to malfunction.
1 Open the roll paper cover. U”How to Open the Roll Paper Cover” on page 39
2 Remove the used roll paper core if any. 3 Install the roll paper in the correct direction.
4 Pull out some paper, and close the roll paper cover. U”How to Close the Roll Paper Cover” on page 40
41

5 Tear off the extra roll paper using the manual cutter.

Chapter 2 Setup

42

Connecting the Printer to the Host Device

Chapter 2 Setup

USB Interface
When using the USB-C cable to connect with host device, connect the USB-C cable to the printer, and after starting the host device, turn the printer on.
· Do not place any weight or stress on the cable when using. Doing so could damage the cable and connectors.
· Use a USB-C cable that complies with the USB 2.0 standard. Using a non- compliant cable may cause the printer to malfunction due to static electricity.
Bluetooth Interfaces (Bluetooth model)
Pair the printer with your device using the Bluetooth function of the device or using other methods. Pairing the printer is also possible by using EPSON TM Bluetooth Connector (Windows) or Epson TM Utility (iOS or Android).
· If the host computer and the printer are not connected on a continuous basis but rather connected every time the printer starts printing, some time may be needed for the printer to actually start printing after the host computer commands printing. This pause is the time required for processing the connection between the host computer and the printer, and it depends on the conditions of the environment where used.
· If data transfer from an application of the host computer has already been completed, data might remain in the Bluetooth module internal buffer. Since data remaining in the buffer may be discarded when the connection is disconnected, when disconnecting the wireless connection immediately after printing, use status or other means to confirm that the transmitted data has been printed reliably.
· The default device name is TM-P20II_xxxxxx. The “xxxxxxxx” is the last 6 digits of the printer serial number. The device name can be edited using the TM-P20II Utility or Epson TM Utility.
· The default Bluetooth security level is “Middle”. For information on the Bluetooth security settings, see “Interface Setup Mode” on page 74.
· For details on the Bluetooth interface, see “Bluetooth Interface (Bluetooth model)” on page 106.
· For detailed information about EPSON TM Bluetooth Connector, see the TM Bluetooth Connector User’s Manual.
Setting up from a Smart Device
How to connect a smart device to a printer via Bluetooth is also introduced in the video manual. See “Manuals for This Product” on page 10 for more details.
Necessary Items
Prepare the following items. · Smart device for setting: iOS or Android device

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Chapter 2 Setup
Setup Procedure
1 On your smart device, open the Bluetooth settings from Settings. 2 Turn on Bluetooth on the smart device. 3 Open the roll paper cover of the printer. 4 With the roll paper cover open, press and hold the Feed button for about one second
until the buzzer sounds, then release it.
5 Close the roll paper cover. A guidance that starts with “Next Action” will be printed.
6 Select [Bluetooth Status sheet]. Briefly press the Feed button (less than one second), and then hold down the button for at least one second. A status sheet will be printed and the printer will be ready for pairing.
7 Select the same device name printed on the status sheet from the list of connectable devices on the smart device and pair it.
8 When you see that the printer is connected, the connection is complete.
· The default setting of the Device Name printed on the status sheet is TM- P20II_xxxxxx. “xxxxxx” is the last six digits of the printer serial number.
· You can make a test print by using Epson TM Utility. For more details about Epson TM Utility, see “Interface Setup Mode” on page 74.
Setting up from a Windows Computer
Follow the procedure below and make the settings.
1 Have a Bluetooth wireless technology compatible computer ready. Make sure you have installed TM Bluetooth Connector.
2 Turn on the printer. 3 Open the roll paper cover of the printer. 4 With the roll paper cover open, press and hold the Feed button for about one second
until the buzzer sounds, then release it.
5 Close the roll paper cover. A guidance that starts with “Next Action” will be printed.
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Chapter 2 Setup
6 Select [Bluetooth Status sheet]. Briefly press the Feed button (less than one second), and then hold down the button for at least one second. A status sheet will be printed and the printer will be ready for pairing.
7 Start TM Bluetooth Connector. 8 Select [Search all printers around this computer], and then click [Search].
If the printer has not detected after clicking the Search button, check the manufacturer of the Bluetooth software. 1. Open the Control Panel. 2. In the search box on the Control Panel, enter “Bluetooth”, and then click Change Bluetooth
settings. 3. In the Bluetooth Settings dialog box, click the Hardware tab, and then search for the Microsoft
Bluetooth Enumerator. If it is not found, the Bluetooth software cannot detect the Epson Bluetooth printer, and you may not be able to connect to the computer.
9 Select the printer to be paired, and then click [Connect].
10 Select the port to be used from the pull-down list, and then click [OK].
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Chapter 2 Setup
11 The “Connection complete” window appears. Click [Test Buzzer] or [Test Printing] to check operation.
12 Click [Back to Main screen] to return to the main window. 13 Click the “x” button of TM Bluetooth Connector to exit.
· If “Error” is displayed when you click the [Search] on the TM Bluetooth Connector, check whether: The Bluetooth adapter is installed to the computer. Bluetooth is ON in the Windows settings.
· If the device is not displayed on the TM Bluetooth Connector or the TM Bluetooth Connector Status shows ” ” after pairing, check the following. Check whether: Make sure the printer is turned on. Make sure the printer is no more than 10 meters away from the computer. Confirm that there is no other wireless device, such as a microwave oven and cordless telephone, that can interfere with the Bluetooth printer. If the printer and the computer are placed in different rooms separated by a wall, move the printer and/or the computer in the same room. The printer may not be detected when the search time is short. Try search again with longer search time. While a computer and printer are communicating, the printer cannot be detected by other computers. Confirm that the printer to be detected is not communicating with any computer.
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Chapter 2 Setup
Wi-Fi Interface (Wi-Fi model)
The printer has “SimpleAP” mode that allows a device to directly connect to the printer without using an access point. This makes it easy to set up a printer to connect to a wireless LAN using the printer setting tool, without having to go through a network environment such as an access point.
· When you set up the access point at the same time, set the access point in advance and check that it operates correctly.
· If the SSID of the access point to which the printer is connected is “EpsonNet”, the printer cannot be connected. Change the SSID to a name other than “EpsonNet”. Note that the default SSID of the printer is “EpsonNet”. The SSID will return to “EpsonNet” when the printer is initialized using the initialization menu in Interface Setup Mode.
· 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.
About SimpleAP (Wi-Fi Direct)
· The printer acts as an access point in the SimpleAP mode and allows up to eight devices to connect to the printer. However, devices directly connected to the printer cannot communicate with each other through the printer.
· The printer can be connected with SimpleAP while being connected to a wireless LAN. However, if the printer is already connected to a wireless LAN and setting using the SimpleAP mode is started, the wireless LAN connection is temporarily disconnected.
· Since the default IP address of SimpleAP is 172.16.10.1, do not use 172.16.x.x as the IP address for the wireless LAN. If you use it, the SimpleAP function will stop to avoid IP address conflicts. However, if you restart SimpleAP in the above state, you can start SimpleAP with IP address conflict avoided.
· Even if you have not changed your passphrase, you may be prompted to enter your passphrase. In that case, enter the serial number of the printer.
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Chapter 2 Setup
Starting the Printer in the SimpleAP Mode
The printer is shipped from the factory with the SimpleAP enabled. The printer automatically starts in the SimpleAP mode and prints the “SimpleAP Start” sheet when it is turned on with the following conditions; SimpleAP enabled, not connected to a wireless LAN/USB device, and wireless LAN settings have not been configured.
You can also manually start the printer in the SimpleAP mode. U”Interface Setup Mode” on page 74 U”Printing a Status Sheet” on page 80
The procedure for starting the printer in the SimpleAP mode using the status sheet printing function is as follows.
1 Turn on the printer. 2 Open the roll paper cover. 3 Install the roll paper. 4 With the roll paper cover open, press and hold the Feed button for about one second
until the buzzer sounds, then release it.
5 Close the roll paper cover. A guidance that starts with “Next Action” will be printed.
6 Select “5:SimpleAP”. Press the Feed button briefly (less than one second) five times, and then hold down the button for at least one second. The printer will start in the SimpleAP mode and print “SimpleAP Start” sheet.
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Chapter 2 Setup
Setting up using Web Config
Start the printer in the SimpleAP mode and connect to a wireless LAN using Web Config. Web Config is a printer’s built-in web page that allows you to check and change printer settings on your browser.
How to connect a smart device to a printer via wireless LAN is also introduced in the video manual. See “Manuals for This Product” on page 10 for more details.
Necessary Items
Prepare the following items. · A device for the setup which has a web browser.
Setup Procedure
1 Start the printer in the SimpleAP mode. The “SimpleAP Start” sheet is printed. U”Starting the Printer in the SimpleAP Mode” on page 48
2 Scan the QR code on the sheet with the device for setup. 3 Select the SSID printed on the sheet on the “Wi-Fi” screen of the device.
Web Config screen will be automatically displayed.
If the QR code cannot be scanned or the screen is not displayed, start your web browser on the device and enter the IP address of the printer in the address field.
4 Select the [Wi-Fi] menu. 5 Enter the password and select “OK” to log in to Web Config.
The default password is the serial number of the printer. The serial number is printed on the “SimpleAP Start” sheet.
The password can be changed from “Change Administrator Password” in the Product Security tab of Web Config.
6 From the list of SSIDs displayed, select the SSID of the network you want to connect to. 7 Enter your network password and select “OK”.
When the Wi-Fi LED lights up, the connection is complete.
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Chapter 2 Setup

Setting up using Epson TM Utility
Start the printer in the SimpleAP mode and connect to a wireless LAN using the TM Utility.

Necessary Items

Prepare the following items.

· Smart device for setting: iOS or Android device

· Utility for setting:

Epson TM Utility

Setup Procedure

1 Start the Epson TM Utility.

2 Select [Wi-Fi Setup Wizard] from the menu. 3 Select the printer model name. 4 Select [Next]. Instructions for starting SimpleAP (Wi-Fi Direct) will be displayed.
Follow the instructions to start SimpleAP.
Then, follow the on-screen instructions to complete the setup.

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Chapter 2 Setup
Setting up using TM-P20II Utility
Connect the printer and computer with a USB cable, and configure the printer’s wireless LAN settings on the computer using the TM-P20II Utility.
Necessary Items
Prepare the following items. · Computer: Windows 11/10/8.1/8/7 · USB cable: With a Type-C connector required for connecting to the printer · Setup utility: TM-P20II Utility
Setup Procedure
1 Connect the printer to the computer with a USB cable. 2 Turn on the computer. 3 Turn on the printer. 4 Start TM-P20II Utility. 5 Select the printer and click [OK].
If the printer does not appear, click the [Add Port] button to add the USB- connected printer.
6 Use the [Network] menu to configure the network settings. For details on the settings, refer to the TM-P20II Utility manual.
7 After completing the settings, turn off the printer.
Wireless LAN setup for the printer is now completed.
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Chapter 3 Handling
Handling
Cleaning
Cleaning the Printer Case
If the exterior surface is noticeably dirty, follow the steps below to clean it.
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.
1 Turn off the printer. 2 Disconnect the USB-C cable, if it is connected. 3 Wipe off the dirt with a dry or slightly damp cloth.
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Cleaning the Thermal Head
Epson recommends cleaning the thermal head to maintain receipt print quality. We recommend cleaning periodically (about once every 3 months).
· After printing, the thermal head and its surroundings can be very hot. Be careful not to touch it and to let it cool before you clean it.
· Do not damage the thermal head by touching it with your fingers or any hard object.
1 Turn off the printer. 2 Disconnect the USB-C cable, if it is connected. 3 Open the roll paper cover and then remove roll paper. 4 Clean the thermal head with a cotton swab moistened with alcohol solvent (ethanol
or isopropyl alcohol).
5 When the cleaned area is completely dry, load the roll paper and close the roll paper cover.
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Chapter 3 Handling
Cleaning the Platen Roller and Paper Detector
Depending on the roll paper used, paper dust may stick to the platen roller and the paper may not be fed correctly. Follow the procedure below to remove the paper dust. To maintain receipt print quality, we recommends cleaning the platen roller and the paper detector periodically (about once every 3 months).
1 Turn off the printer. 2 Disconnect the USB-C cable, if it is connected. 3 Open the roll paper cover and then remove roll paper. 4 Use a cotton swab lightly moistened with water to remove paper dust from the
platen roller and paper detector.
Platen Roller Paper Detector
5 When the cleaned area is completely dry, load the roll paper and close the roll paper cover.
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Troubleshooting

Chapter 3 Handling

When the Roll Paper Jams
When a paper jam occurs, never pull out the paper with too much force. Open the roll paper cover and remove the jammed paper. Follow the procedure below to remove jammed paper.

WARNING

Do not touch the thermal head and its surroundings. They may be hot immediately after printing.

If you touch paper before printing is finished, a paper jam may occur.
1 Turn off the printer. 2 Disconnect the USB-C cable, if it is connected. 3 Open the roll paper cover. 4 Remove the jammed paper. 5 Install the roll paper and close the roll paper cover.

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Chapter 3 Handling
Printout is Faint
If your print out is faint or banding appears as shown below, the thermal print head may be stained badly. Clean the thermal print head and check that the problem is solved. U”Cleaning the Thermal Head” on page 53 U”Cleaning the Platen Roller and Paper Detector” on page 54
Cannot Print
If you cannot print from the printer even though no errors have occurred, run a self-test to see if you can print with the printer alone. If the printer is connected to a computer or smart device via Wi-Fi or Bluetooth, check the Wi- Fi LED or Bluetooth LED to see if they are connected properly. Follow the steps below.
1 Close the roll paper cover. 2 While pressing the Feed button, turn on the printer. (Hold down the Feed but-
ton 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 using the built-in character set. After “ completed ” is printed, the printer is reset and switches to standard mode.
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Advanced Usage

Software Settings
The printer offers memory switches and customized values which allow you to make various settings for the printer. The settings can be made in any of the methods listed in the table below or by using the ESC/POS commands. For an explanation of each function and setting, see “Overview of Each Function” on page 58.
· The Software Setting Mode allows you to make the settings by operating the buttons on the printer. For instructions on how to operate the buttons, see “Software Setting Mode” on page 71.
· For the settings that can be set by the ESC/POS commands and how to set them, refer to the ESC/POS Command Reference. For more details, see “Application Development Information” on page 84.

Item Method
Print Density Print Speed Automatic Paper Reduction Default Character Code Page Default International Character Set Thai Character Composition Embedded Font Replacement Multi-Language Font Font Priority Interface Selection USB Interface Settings Interface switch waiting time Main connection interface Auto Line Feed Output Paper-end Signals Error Signal Output Command Execution (Offline) NV Capacity Buzzer Control

Software Setting Mode

TM-P20II Utility TM Utility

Web Config (Wi-Fi model)

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Item Method
Transmission of status information Auto power off Paper Position at Power On Resizing method for graphic data scaling Batch rotate print (Upside Down) Method for canceling recoverable error Handshaking (Condition for BUSY) Battery charge mode Operation mode when battery is low Desktop Mode

Software Setting Mode

TM-P20II Utility TM Utility

Web Config (Wi-Fi model)

Overview of Each Function
Print Density
Monochrome
Selectable from 70 to 130% (5% increment) Initial setting: 100% To ensure good print quality, it is recommended to set the print density according to the paper used. See “Paper Specifications” on page 93 for setting instructions.
· When the print density level is increased, print speed may be reduced. · When print density is increased, paper dust tends to adhere to the print head surface, which
may cause printing defects such as blurred prints.

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Print Speed
Selectable from levels 1 to 10 (Slow ~ Fast) Initial setting: level 10
Depending on print conditions, such as print duty, print 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.
Automatic Paper Reduction
Upper Margin
· Enable · Disable (initial setting)
Lower Margin
· Enable · Disable (initial setting)
Blank Line Spacing (Line space reduction rate)
· 25% · 50% · 75% · Not reduced (initial setting)
Blank Space (Line feed reduction rate)
· 25% · 50% · 75% · Not reduced (initial setting)
Barcode Height (Barcode height reduction rate)
· 25% · 50% · 75% · Not reduced (initial setting)
Character Hight (Character height reduction)
· 75% reduction of inner spacing · 75% reduction of inner spacing and shrinking the character height · Not reduced (initial setting)
· No reduction is applied to blank dot lines that exist in 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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Character/Font Settings
Default Character Code Page
Selectable from 43 pages including user defined page Initial setting: PC437: USA, Standard Europe
Default International Character Set
Selectable from 18 sets Initial setting: USA
Thai Character Composition
· 3 pass · 1 pass (initial settings)
Embedded Font Replacement
Font A Replacement · Does not replace (initial setting) · Font B · Font C · Font D · Font E · Special Font A · Special Font B
Font B Replacement · Font A · Does not replace (initial setting) · Font C · Font D · Font E · Special Font A · Special Font B
Font C Replacement · Font A · Font B · Does not replace (initial setting) · Font D · Font E · Special Font A · Special Font B
Font D Replacement · Font A · Font B · Font C

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· Does not replace (initial setting) · Font E
Font E Replacement · Font A · Font B · Font C · Font D · Does not replace (initial setting)
Multi-Language Font
· Thai, Vietnam (initial setting) · Simplified Chinese
Font Priority
· ANK · Japanese (initial setting) · Simplified Chinese · Traditional Chinese · Korean
Interface Selection
· Bluetooth (Bluetooth model) · Built-in USB · Wi-Fi (Wi-Fi model) · Multiple (initial setting)
Interface Settings
USB Interface Settings
Class · USB vendor-defined class (initial setting) · USB printer class IEEE1284 Device ID · Do not output IEEE1284 Device ID · Output IEEE1284 Device ID (initial setting) USB power-saving function · Enable · Disable (initial 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 allows the USB driver to support the USB power-saving function.
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Interface switch waiting time
Select the number of seconds from 1 to 10 in increments of 1 second, or 60 seconds. Initial setting: 10 seconds

Main connection interface
· Built-in USB
· Bluetooth (Bluetooth model)
· Wi-Fi (Wi-Fi model)
· Auto (An interface that received data first) (initial setting)
· None (No main connection I/F)
· When using this printer with multiple interfaces, make sure the interface that is always connected to be set as the main connection.
· Automatic interface selection: When connected to a host PC with a USB-C cable, the printer’s standard USB interface is preferentially selected. However, if the printer is turned on before the host computer is started, the wireless interface is selected. If the USB interface cable is not connected to the host computer, the wireless interface is selected.
· When you do not use the Bluetooth function, set the Bluetooth security level to “Middle” or “High” to prevent unauthorized access to the printer over Bluetooth. You can change the security level by using Epson TM Utility, TM- P20II Utility, or in the Interface Setup mode.

The “Auto” setting allows you to use the first interface you communicate with as the main connection and the other interfaces as secondary connections after you turn on the printer. For the limitations on the main connection and secondary connections, see the table below.

Connection Interface

Connection Priority

ESC/POS Command Restrictions

Retaining of Print Settings When Connection Is Terminated

Main connection

High

No

Retained

Secondary connection

Low

Yes*

Initialized

For details, see the ESC/POS Command Reference.

· The displayed items vary depending on the interface configuration. · For information about the function, see “Printing Using Multiple Interfaces” on page 32.

Auto Line Feed
· Always disabled (initial setting) · Always enabled
Output Paper-end Signals
· Enable (Roll paper end detection) (initial setting) · Disable

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Error Signal Output
· Enable (initial setting) · Disable
Command Execution (Offline)
· Enable (initial setting) · Disable
NV Capacity
User NV Memory
· 1 KB (initial setting) · 64 KB · 128 KB · 192 KB
NV Graphics Memory
· None (0 KB) · 64 KB · 128 KB · 192 KB · 256 KB · 320 KB · 384 KB (initial setting)
Buzzer Control
Low battery warning (Buzzer sounds for low battery warning)
· Enable · Disable (initial setting) Roll paper end warning (Buzzer sounds for roll paper end warning) · Enable · Disable (initial setting) Error occurrence warning (Buzzer sounds for error occurrence warnings) · Enable · Disable (initial setting)
Transmission of status information
· Enable · Disable (initial setting)
The status information includes power on notification, power off notification, and battery status notification.
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Auto power off
· Enable (20 minutes) · Disable (initial setting)
· Using the TM Utility, TM-P20II Utilirty, or the ESC/POS command, it can be set in the range of 0 (disabled) to 60 minutes in 1-minute increments.
· When the USB interface is connected, this setting is disabled (no auto power off ). · For details on the auto power off function, see “Auto Power-Off” on page 24.
Paper Position at Power On
Function Select
· Enabled · Disabled (initial setting)
Position Select
· Cut Position · Top Position (initial setting)
This menu allows you to set the paper position immediately after closing the roll paper cover, resetting the printer, or turning on the printer.
Resizing method for graphic data scaling
Select the resizing method for graphic data scaling. · None (initial setting) · Auto · Manual
Algorithm
· Simple thinning · Nearest neighbor · Bilinear · Bicubic
Scaling factor for manual adjustment
50 to 200%
Batch rotate print (Upside Down)
When this function is enabled, each receipt is rotated 180 degrees and printed. · Enable · Disable (initial setting)
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Method for canceling recoverable error
· Command and Cover Close (initial setting) · Command Only
Handshaking (Condition for BUSY)
· Offline or Receive buffer full (initial setting) · Receive buffer full
Battery charge mode
· Mode 1 (initial setting) · Mode 2
For detailed information about the battery charge mode, see “Battery Charge Mode” on page 24.
Operation mode when battery is low
· Mode 1 (initial setting) · Mode 2
For detailed information about the operation mode when battery is low, see “Operation Mode When Battery is Low” on page 25.
Desktop Mode
· Disable (initial setting) · Enable
For details on the Desktop Mode, see “Desktop Mode” on page 26.
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MAC Address Confirmation
You can check the printer’s MAC address using the following procedures. · Printing the status sheet · Print a Self-test · Using a Web browser to confirm (Web Config function)

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Chapter 4 Advanced Usage

Setting/Check 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 · Software settings mode · Restore default values mode · Interface setup mode · Radio field intensity check mode (Wi-Fi model) · Hexadecimal dumping mode
The self-test mode or hexadecimal dumping mode is selected depending on the operation performed when the power is turned on. NV graphic information print mode, Software settings mode, and Restore default settings mode are selected depending on the Feed button operation performed during a self-test.
Close the roll paper cover, and turn on the printer while pressing the Feed button. Self-test

Briefly press the Feed button. Continuing the self-test

Hold down the Feed button. Mode selection guidance

Press the Feed button once briefly
and then hold it down.
NV Graphics Information

Press the Feed button three times
briefly and then hold it down.
Software Settings

Press the Feed button four times briefly and then
hold it down.
Restore Default Values

Open the roll paper cover, and turn on the printer while pressing the Feed button, and then close the roll paper cover.
Hexadecimal dumping

Press the Feed button ve times briefly and then
hold it down.
Interface Setup

Press the Feed button eight times
briefly and then hold it down.
Radio eld intensity check

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In 1 and 2, the following guidances are printed, the Power LED flashes, and instructs the user’s operations. 1. Continuing self-test guidance

2. Mode selection guidance
Wi-Fi model
Mode Selection
Modes 0: Exit and Reboot Printer 1: NV Graphics Information 3: Customize Value Settings 4: Restore Default Values 5: Interface Setup 8: Radio Field Intensity Check More than above: None
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.

Bluetooth model
Mode Selection
Modes 0: Exit and Reboot Printer 1: NV Graphics Information 3: Customize Value Settings 4: Restore Default Values 5: Interface Setup More than above: None
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.

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Self-test Mode
You can check the following items using the self-test. · Product name · Firmware version · Product serial number · Interface type · Handshaking (Condition for BUSY) · Resident fonts · Thai Character Composition · Auto Line Feed · Print Density · Recovery Point · Maintenance counter information (head running length) Follow the steps below. You can also run the self-test using the ESC/POS commands.
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.
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Chapter 4 Advanced Usage
NV Graphics Information Print Mode
Prints the following NV graphic information registered to the printers. · 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 30.
Follow the steps below.
1 After running a self test, hold down the Feed button for at least one second, and then select the Mode selection. The Mode selection guidance is printed, and the power LED flashes.
2 After briefly (less than one second) pressing the Feed button once, and then 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”.
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Software Setting Mode
Set the printer’s memory switches and customized values. See “Software Settings” on page 57 for information about available functions and settings and how to set them.
You can also make the software settings using the ESC/POS commands.
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 power LED flashes.
2 Briefly press the Feed button three times (less than one second), and then hold it down for at least one second to enter the Software settings mode (Customized value setting). The Software setting mode guidance is printed, and the power LED flashes.
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 initial 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 57. 71

Chapter 4 Advanced Usage
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 power 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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Restore Default Values Mode

In Restore default values mode, following values saved on NV Memory will be set back to initial settings. When any error occurs, you can use to specify the reason.

Setting Item
Customized Value Memory switch USB Interface Settings Network settings NV graphics NV bit image User defined page User NV memory

Restore default settings
–

Restore default settings and Delete definition 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 power LED flashes.
2 Briefly press the Feed button four times (less than one second), and then hold it down for at least one second to enter the Restore Default Values. The guidance is printed.
3 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 message of restore completion is printed.)

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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 power LED flashes.
2 Briefly press the Feed button five times (less than one second), and then 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 Setup] or [Bluetooth Setup] and select [Initialize] to restore the communication settings to the factory default. The printer is reset and restarted.
SimpleAP mode (Wi-Fi model)
Select [Wi-Fi Setup] and select [SimpleAP] to start in SimpleAP mode. The printer is reset and restarted, and it begins printing the “SimpleAP Start” information. Select this to quickly set up a network connection.
For information on the Quick connection function, see “Wi-Fi Interface (Wi-Fi model)” on page 47.
Auto re-connect to iOS device (Bluetooth model)
Select [Bluetooth Setup] and then select [Auto Re-Connect iOS], you can select whether to enable or disable auto reconnection to iOS devices.
· For details on the auto re-connect function, see “Auto Reconnect Feature” on page 107. · You can change the settings with TM-P20II Utility and Epson TM Utility.
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Bluetooth Security Settings (Bluetooth model)
Select [Bluetooth Setup], and then select [Security], and you can change the Bluetooth security settings.
· If you change the security settings, the link key (pairing information) will be deleted. If the printer is already paired with a terminal, unpair them and then pair again.
· When the security level is set to “Low”, pairing is always possible, which increases the possibility of unauthorized use by a third party. Change the setting at your own discretion and responsibility with full understanding of the risk.
· Bluetooth LE always enables searching regardless of the security setting. · If you connect without pairing with Bluetooth LE, communication is not encrypted. · To communicate via Bluetooth LE, use the development kit (Epson ePOS SDK for iOS) that supports
the dedicated profile.
You can change the settings with TM-P20II Utility and Epson TM Utility.

Bluetooth Classic

Security Low Middle (initial setting) High

Pairing Mode
Pairing is always possible
Pairing is possible for one minute after printing the status sheet
Pairing is possible for one minute after printing the status sheet

Bluetooth LE

Security Low Middle (initial setting) High

Pairing Mode Always searchable (no pairing required to connect) Always searchable (no pairing required to connect)
Always searchable Pairing is possible for one minute after printing the status sheet

Pairing Method Just Works Just Works Numeric Comparison/Passkey Entry
Pairing Method Passkey Entry

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Pairing method when the security is set to Middle/High (from the printer)
When the security is set to Middle/High and the printer is ready to be paired, perform the following procedure.
1 Load paper in the printer, and then turn it on.
· Make sure no errors have occurred and that the printer is not off-line. · You cannot pair the printer while the network is starting up immediately after the power is
turned on.
2 Open the roll paper cover, hold down the FEED button (two seconds), and then close the roll paper cover. A guidance that starts with “Next Action” will be printed.
3 Briefly press the Feed button (less than one second), and then hold down the button for at least one second.
4 A status sheet is printed, and the Bluetooth LED flashes a pattern indicating that pairing is now possible. After this, the printer will be able to be paired for one minute only. You can enable pairing also by printing the status sheet by pressing the status sheet button.
Pairing method when the security is set to High (from the host)
When the security is set to High and the printer is ready to be paired, perform the following procedure.
1 Search for the printer on the Bluetooth settings screen on the host device. 2 Select the printer you want to pair with.
The printer prints the Passkey.
3 Check that the printed Passkey and the Passkey displayed on the host device match, and then select “Pairing” on the host device.
Bluetooth communication interval during power saving mode (Bluetooth model)
Select [Bluetooth Setup] and then [Low Power Level] to change the communication interval when waiting to receive data from the host in power saving mode. · Level 1 (Standard) (initial setting) · Level 2 (Short)
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By changing the setting to [Level 2 (Short)], you can shorten the time until printing begins. However, since the frequency of communication increases, the power consumption of the printer and host will increase. Also, depending on the host, this setting may not be enabled and the host-specified communication interval may be used.
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Radio field intensity check mode (Wi-Fi model)
Information on the strength of the wireless LAN radio field is printed. Follow the steps below.
1 After running a self test, hold down the Feed button for at least one second, and then select the Mode selection. Prints the Mode selection guidance, and the Power LED flashes.
2 After briefly (less than one second) pressing the Feed button for eight times, hold it down for at least one second to select the Radio field intensity check. The operation guidance is printed, and the Power LED flashes.
3 Press the Feed button (approximately one second) until the buzzer sounds once. Continue this operation when repeating the Radio field intensity check.
Print image for radio field intensity information
4 Turn the power off to finish.
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Hexadecimal Dumping Mode
In hexadecimal dumping mode, data from the host device is printed in hexadecimal numbers and characters. By comparing the print outs and the program, you can check whether or not data is being sent to the printer correctly.
· When there are no characters that correspond to the 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. Entering the hexadecimal dumping mode is also possible using the ESC/POS commands.
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. From this point, all data received by the printer is printed in the corresponding hexadecimal numbers and 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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Printing a Status Sheet
Follow the steps below to check the interface settings.
You cannot print after turning on the power while the Power LED is flashing.
1 Check that the printer is on. 2 Open the roll paper cover. 3 Install the roll paper. 4 Press and hold the Feed button for about 1 second until the buzzer sounds. 5 Close the roll paper cover.
A guidance that starts with “Next Action” will be printed.
6 Press the Feed button briefly (less than one second) the number of times equal to the number indicated to the left of the status sheet you want to print, then hold down the button for at least one second. Printing of a status sheet will start. The printer will return to normal mode after printing is finished. · After the status sheet is printed, only the print settings of the mainly connected interface are retained. For the mainly connected interface, see “Printing Using Multiple Interfaces” on page 32. · Wi-Fi status sheet is not printed while the printing communication protocol is being established. It will be printed after the connection is cut off (including being cut due to a time out). · The Bluetooth status sheet is not printed if status sheet printing is performed under the following conditions. Bluetooth is connected when the Bluetooth security is set to “Middle” or “High” An error occurs when the Bluetooth security is set to “Middle” or “High” * Time between when a pairing request is received and Passkey printing starts when the Bluetooth security is set to “High”
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Web Config
Web Config is a printer’s built-in web page that allows you to check and change printer settings on your browser. To use Web Config, you need to set your computer’s IP address to the same segment as the printer.

How to Start Web Config

1 Start your web browser on a computer or smart device on the network and enter the IP address of the printer in the address field.

Example for HTTPS

Example for HTTP

IPv4: https://192.0.2.111/ IPv6: https://[2001:db8::1000:1]/

IPv4: http://192.0.2.111/ IPv6: http://[2001:db8::1000:1]/

2 Select [Advanced Settings].

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3 Select [Administrator Login].

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4 When the authentication screen appears, enter your password and log in. The default password is the serial number of the printer. You can find the serial number by running the self-test or on the nameplate attached to the printer. Enable JavaScript in your browser. Because a self-signed certificate owned by the printer is used when accessing HTTPS, a warning will appear in the browser when Web Config is started. What can be Configured in Web Config For information on what can be configured in Web Config, refer to the Web Config Reference Guide. The Web Config Reference Guide can be obtained from the URL listed in “Download” on page 87.
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Chapter 5 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 · ESC/POS
Users can control the printer by using the aforementioned commands, or the following development kits or drivers. · Epson ePOS SDK · OPOS ADK · OPOS ADK for .NET · JavaPOS ADK · EPSON Advanced Printer Driver (APD) · EPSON TM Virtual Port Driver · Epson TM/BA Series Thermal Printer Driver
ePOS-Print XML
ePOS-Print XML is the Epson original control command system for POS printers defined in XML. With ePOSPrint 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 detailed information about ESC/POS commands, see the ESC/POS Command Reference that can be accessed from the following URL. U https://www .epson-biz.com/pos/reference/
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Chapter 5 Application Development Information

Software
The following software is provided for application development.

Development Kit

Software Epson ePOS SDK
for Android for iOS for JavaScript EPSON OPOS ADK
EPSON OPOS ADK for .NET
EPSON JavaPOS ADK
Epson TM Print Assistant for Android for iOS

Description
This is a development kit for controlling TM printers from native applications of smart devices or web applications. This includes libraries, manuals, and sample programs.
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.
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.
A native application that relays print data between an application and the TM printer. Epson TM Print Assistant allows you to develop a system that enables printing from a Web application or a URL-scheme capable application such as FileMaker, on a smart device connected to the TM printer.

: 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/spec/UPOS

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Chapter 5 Application Development Information

Drivers

Software

Description

Operating environment

EPSON Advanced Printer Driver (APD)

In addition to ordinary Windows printer driver functions, this driver has controls Windows specific to POS. The Status API (Epson original DLL) that monitors printer status and sends ESC/POS commands is also attached to this driver.

EPSON TM Virtual Port Driver

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

Epson TM/BA Series Thermal Printer Driver

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

Utilities

Software Epson TM Utility
TM-P20II Utility
TM Bluetooth Connector

Description
A utility that is available on the App Store or Google Play. Use this to perform wireless connection setup and change settings on the printer from iOS and Android devices. In addition, the utility has the following functions. · Sample receipt printing · Printer status display · Quick pairing by NFC/QR code · Firmware update
A utility for checking and changing various printer settings. Use this utility to: · Check the current settings · Test operation · Store logos · Set paper saving · Set printing control · Set communication interfaces · Configure the network settings · Save/restore settings
Pairs the Bluetooth printer with your device, and sets the Bluetooth port to be used by the printer driver and/or an application. Using this software makes it easy to pare the printer because the software searches for and displays only Epson Bluetooth printers, and allows you to search the printer by its product name.

Operating environment iOS, Android
Windows
Windows

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Chapter 5 Application Development Information

Deployment Tool
Monitoring Tool
TM-P20II Firmware Updater

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. Windows You can also update certificates for multiple printers used for WPA- Enterprise in a batch.

Use this tool to update the printer’s firmware. An executable file and the firmware are packaged together.

Windows

Others

Manual ePOS-Print XML User’s Manual Web Config Reference Guide

Description Describes ePOS-Print XML statements. This manual comes with sample programs. Describes items that can be configured in Web Config.

Download
You can obtain software and manuals from one of the following URLs. For customers in North America, go to the following web site: U https://www.epson.com/support/ For customers in other countries and regions, go to the following web site: U https://www.epson-biz.com/

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Chapter 5 Application Development Information

Precautions when Developing Applications
This section describes information that you should be aware of when developing systems and applications using this product.

Notes on Printing Barcodes and Two-Dimensional Symbols

· Ensure adequate space around the code; “quiet zone” that is required for the code.

· To print PDF417 (two-dimensional symbol), the following settings are recommended.

Module height:

3 to 5 times the module width

Vertical size of the symbol: approximately 5 mm {0.20″} or more

· The recognition rate of ladder bar codes and two-dimensional symbols may vary depending on widths of the modules, print density, environmental temperature, type of paper, and characteristics of the reader. Make sure to check the recognition rate beforehand to determine the settings and use conditions so that the restrictions of the reader are satisfied.

· Reading quality of multi-gradation bar codes and two-dimensional symbols is not guaranteed.

· When printing a ladder barcode or two-dimensional symbol that is created as a graphics data, set the print speed to level 5.

Application Development and Distribution for iOS (Bluetooth model)
If your application uses Bluetooth to communicate with the printer, Epson must submit the application to Apple before you submit it to the App Store. Please apply for each application you want to submit to the App Store from the URL below. U https://www.epson-biz.com/ais/E/

88

Appendix

Appendix

Product Specifications

Printing method

Direct thermal line printing

Paper feeding method

Friction feed

Paper width

58 mm

Roll paper loading method

Load roll paper by dropping it into the printer

Cutting method

Manual cutter

Paper detector

Roll paper end detection (optical)

Cover detector

Roll paper cover open/close status detection (microswitch method)

Interface

USB-C

USB 2.0 compliant, Full-Speed (12 Mbps)

Wi-Fi (Wi-Fi model)

IEEE802.11a/b/g/n/ac

Bluetooth (Bluetooth model)

Bluetooth 5.0 Dual mode: Outside Brazil Bluetooth Dual mode: Brazil

Buffer

Receive buffer

4 KB (except Bluetooth communication), 64 KB (for Bluetooth communication)

Downloaded buffer 12 KB (user-defined characters and images)

NV graphics memory 384 KB

Barcode/Two-dimensional symbol printing

UPC-A, UPC-E, JAN8 / EAN8, JAN13 / EAN13, Code39, Code93, Code128, ITF, CODABAR(NW-7), GS1-128, GS1 DataBar, PDF417, QR code, Maxi Code, Data Matrix, Aztec Code, Two-dimensional GS1 DataBar, Composite Symbology

Overall dimensions (W x D x H)

Approx. 79.0 x 120 x 46.0 mm {3.11 x 4.72 x 1.81 in.} Dimensions with belt clip removed.

Weight

Wi-Fi model

Approx. 223 g {0.49 lb} * Excluding the belt clip and paper.

Bluetooth model

Approx. 216 g {0.48 lb} * Excluding the belt clip and paper.

89

Appendix

Printing Specifications

Printing method

Dot density

Paper feeding method

Printing width

Characters per line

Font A Font B*1

Font C

Font D

Font E Kanji Font A*1

Kanji Font B

Line spacing

Kanji Font C

Maximum print speed*2

Thermal line printing 203 × 203 dpi Friction feed 48 ± 0.2 mm {1.89 ± 0.01 in.}, 384 dots 32 42 42 38 48 Japanese: 16 Simplified Chinese: 16 Traditional Chinese: 16 Korean: 16 Japanese: 19 Korean: 24 Japanese: 24 3.75 mm {0.15 in.} (Initial setting. Programmable by command) 100 mm/s {3.94 in./s} (Standard mode) 40 mm/s {1.57 in./s} (Fine mode)

dpi: dots per inch 1: Default setting 2: When a new battery is used, the battery is fully charged, the room temperature is 25°C, and the print density is 100%.
· The print speeds are measured under the following conditions: use of a new fully charged battery, room temperature, and 100% print density. In addition, the speed changes automatically depending on the voltage applied to the printer and head temperature.
· If the data transmission speed is slower than the maximum print speed, the print speed may fluctuate and the print result may become shaded and/or dot displacement in paper feeding may occur. Furthermore, if the data transmission speed is much slower than the maximum print speed (for example, when using Bluetooth LE), intermittent printing will occur.

90

Appendix

Character Specifications

Character set

ANK

Japanese

Simplified Chinese

Traditional Chinese

Korean

Character code

Japanese

Simplified Chinese

Traditional Chinese

Korean Unicode*1

The number of dots per character (W x H)

Font A Font B Font C

Font D

Font E

Special Font A

Special Font B

Hindi Font A

Hindi Font B

Kanji Font A

Kanji Font B Kanji Font C

95 alphanumeric characters 128 extended graphics characters x 54 pages (Includes user-defined pages. Models for South Asia do not support user- defined pages.) 18 international character sets (For South Asia: 29 sets) 6,879 characters of JIS X0208-1990, 845 special characters 11,233 characters of JIS X0213:2004, One special character 28,553 characters of GB18030-2000 13,502 characters of Big5 8,224 characters of KSC5601 ISO-2022-JP / Shift_JIS / Shift_JIS-2004 GB18030-2000 Big5 KSC5601 UTF-8 12 × 24 (includes 2-dot horizontal spacing) 9 × 24 (includes 2-dot horizontal spacing) 9 × 17 (includes 2-dot horizontal spacing) 10 × 24 (includes 2-dot horizontal spacing) 8 × 16 (includes 2-dot horizontal spacing) 12 × 24 (includes 2-dot horizontal spacing) 9 × 24 (includes 2-dot horizontal spacing) Proportional x 32 Proportional x 24 Japanese: 24 × 24 Simplified Chinese: 24 × 24 Traditional Chinese: 24 × 24 Korean: 24 × 24 Japanese: 20 × 24 Korean: 16 × 16 Japanese: 16 × 16

91

Appendix

Character size*2 (W x H)

Font A Font B Font C Font D Font E Special Font A Special Font B Hindi Font A Hindi Font B Kanji Font A

Kanji Font B Kanji Font C

1.25 × 3.00 mm {0.05 × 0.12 in.} 1.13 x 3.00 mm {0.04 x 0.12 in.} 0.88 × 2.13 mm {0.03 × 0.08 in.} 1.00 × 3.00 mm {0.04 × 0.12 in.} 0.75 × 2.00 mm {0.03 × 0.08 in.} 1.25 × 3.00 mm {0.05 × 0.12 in.} 0.88 × 3.00 mm {0.03 × 0.12 in.} Proportional x 4.00 mm {0.16 in.} Proportional x 3.00 mm {0.12 in.} Japanese: 3.00 × 3.00 mm {0.12 × 0.12 in.} Simplified Chinese: 3.00 × 3.00 mm {0.12 × 0.12 in.} Traditional Chinese: 3.00 × 3.00 mm {0.12 × 0.12 in.} Korean: 3.00 × 3.00 mm {0.12 × 0.12 in.} Japanese: 2.50 × 3.00 mm {0.10 x 0.12 in.} Korean: 2.00 × 2.00 mm {0.08 x 0.08 in.} Japanese: 2.00 × 2.00 mm {0.08 × 0.08 in.}

Special fonts= Thai fonts 1: Only the character sets installed on the printer can be printed. 2: Space between characters is not included. Characters can be scaled up to 64 times as large as the standard size.
By specifying UTF-8 character encoding, all the installed character sets can be printed. For more details on printing Unicode characters, see “FS ( C” of the ESC/POS command reference, or manual of the software you use. (“Application Development Information” on page 84)

92

Appendix

Paper Specifications

Paper type Form Size

Paper width Roll width when taken up Roll outside diameter Roll core outside diameter Roll core inside diameter Roll core width

Paper thickness Specified original paper

Thermal paper
Roll paper
57.5 ± 0.5 mm {2.26 ± 0.02 in.}
58 ± 0.5 mm {2.28 ± 0.02 in.}
40 mm {1.57 in.} at maximum
At least 18 mm {0.71 in.}
At least 12 mm {0.47 in.}
Must be the same as the paper width or smaller than the paper width with a difference of 1 mm {0.04 in.} or less.
75 m at maximum, 50 m at minimum
TF50KS-EY, TF60KS-E (NIPPON Paper Industries Co., Ltd.) PD160R, PD190R (OJI Paper Mfg. Co., Ltd.) P220AGB-1 (Mitsubishi Paper Mills Limited.) AP45KS-ND, AP50KS-ND (Jujo Thermal Oy) P5047(55), P5047(46) (Mitsubishi HiTec Paper Europe GmbH) KT55FA, KT48FA, KT55PF, KT48PF (Papierfabrik AugustKoehler SE)

· Paper must not be pasted to the roll paper core. · Use of thermal paper with a pre-printed recording surface should be avoided. Using it can cause
the thermal head to stick to the thermal paper surface during printing, and cause printing failure and other problems. The pre-printing also can result in reduced print density. When using thermal paper with a pre-printed recording surface, pre-printing should be done in accordance with the conditions (ink type, printing and other conditions) recommended by the paper manufacturer, and the thermal paper should be checked to ensure that there is no faulty printing, loss of print density, or other problems.

It is recommended to mark the end of the roll with a red line so that the end of the roll can be recognized.

93

Appendix

Recommended Print Density for Specified Base Paper
To ensure good print quality, it is recommended to set the print density (see “Software Settings” on page 57) according to the paper used.

Specified original paper

Print density

TF50KS-EY, TF60KS-E

100%

P220AGB-1

105%

PD160R, PD190R

110%

AP45KS-ND, AP50KS-ND, KT48FA, P5047(46), P5047(55)

120%

KT55FA, KT48PF, KT55PF

130%

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Appendix
Printing Area
Printing is automatically performed in one to six-part energization depending on the printing conditions. During printing with two to six-part energization, a misalignment (horizontal ruled line shift) of 1/12 to 1/4 dot might occur in the paper feeding direction due to segmented printing.
Dot No.1

Approx. 4.75 mm {0.19″}

57.5 ± 0.5 mm {2.26 ± 0.02″ } 0.125 mm {0.005″} Dot No.384 <203 dpi>

Approx. 8.0 mm {0.31″}

48.0 ± 0.2 mm {1.89 ± 0.005″ } (384 dot)

Approx. 4.75 mm {0.19″}

95

Print Position and Manual Cut Position

Appendix

Manual cut position

Approx. 8.0 mm {0.31″}

Center of the print dotline
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.

96

Appendix

Electrical Characteristics

Item

Specifications

Dedicated battery (OT-BY20)

Model: D171A

Rated voltage: 7.2 VDC Capacity: Typ. 1240 mAh, Min. 1170 mAh Approximate life span (number of charge/discharge cycles): 500 cycles

USB charging

Note: Epson cannot guarantee and is not responsible for the performance or quality of 3rd party USB charging devices. The following is provided as a starting point reference to consider in selecting a 3rd party USB charging device. Be sure to use Product that meets the following electrical specifications:
Minimum output 5.0 V/0.5 A Maximum output 5.0 V/8.0 A Be sure to use Product that meets appropriate and applicable safety certifications, ratings and regulation, which apply in the region where the product will be used. For examples, · FCC Part 15 compliant · UL/CSA/TUV/ISED/CE/PSE/BIS/CCC etc. When charging the printer, be sure to use the included USB Type-C cable.

Charging time*1 5 V/3 A

At normal temperatures: Approx. 3 hours

At low temperatures: Approx. 5 hours

5 V/1.5 A

At normal temperatures: Approx. 3.5 hours

At low temperatures: Approx. 6 hours

5 V/900 mA 5 V/500 mA

At normal temperatures: Approx. 10 hours

At low temperatures: Approx. 19.5 hours

Continuous

Wi-Fi model

operating time*2

When the power save mode is enabled: When the power save mode is

Approx. 15 hours

disabled:

Approx. 9 hours

Bluetooth model Approx. 27 hours

1: Charging time is the measured time from approximately 0% remaining charge to fully charged under the following conditions. The battery is new. The printer is powered off. Normal temperatures are defined as approximately 10 to 30°C {50 to 86°F} and low temperatures as approximately 0 to 10°C {32 to 50°F}.
2: The test conditions are as follows. The battery is new. The battery is fully charged. Printed pattern is ANK 42 digits (Font B), 20 lines + paper feed by 6 lines. Printed once every five minutes. Performed under normal temperature of 25°C. Print density is 100% Access point used is CISCO AIR- LAP1142N-P-K9 Wireless communication conditions: beacon interval is 200 ms, DTIM interval is 1, no broadcast The time it takes for the battery to go from fully charged to approximately 0% (E level).
The power saving mode can be set in “Wi-Fi” – “Energy Saving” of the TM-P20II Utility or TM Utility.

Note that the above continuous operating hours may vary depending on the operating environment and other factors.

97

Appendix

Reliability

Life1
MTBF2

References

• epson-biz.com - EPSON
• epson-biz.com/?prd=ot-sb202&inf=manual
• User's Manual - TM-P20II - EPSON
• YouTube
• MFi - ePOS SDK Development support - Epson
• Tech.Reference - Epson
• Introduction - TM Printer - Character Code Tables - Tech.Reference - POS - Epson
• Epson® Official Support

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