Copyright (C) Seiko Epson Corporation 2015 - 2025. All rights reserved.
=========================================================================

1.Note
The Epson ePOS SDK for iOS is an SDK aimed at development engineers who are developing
iOS applications for printing on an EPSON TM printer and an EPSON TM-Intelligent printer.
Depending on the surrounding radio wave environment, radio waves may become saturated
and communication may be disconnected. In that case please connect with the printer again.
(For example, power cycle the printer or turn off / on the OS Bluetooth setting.)
If it occurs frequently, please review the radio wave environment.

Please refer to the following URL for factors that block communication:
https://support.apple.com/en-us/HT201542

2. Environment
[Support OS]
- iOS Ver.15 to 15.5
- iOS Ver.16 to 16.7.1
- iOS Ver.17 to 17.7.7
- iOS Ver.18 to 18.5
- iPadOS Ver.15 to 15.5
- iPadOS Ver.16.1 to 16.7.1
- iPadOS Ver.17 to 17.7.7
- iPadOS Ver.18 to 18.5

[Support interface]
[TM Printer]
- Wired LAN
- Wireless LAN
- Bluetooth
- Bluetooth Low Energy (hereinafter referred to as “BLE”.)
- USB (TypeA)
[TM-Intelligent Printer]
- Wired LAN
[TM-T88VI-iHUB]
- Wired LAN
- Wireless LAN

[Development environment]
- XCode16.4

3. Supported Products
For detailed information, please see Epson ePOS SDK for iOS User's Manual.

4. Supplied Files

- libepos2.xcframework
Library for function execution
(arm64, x86_64 supported)

- libeposeasyselect.xcframework
Library for selecting a printer easily
(armv7, armv7s, arm64, i386, x86_64 supported)

- ePOS_SDK_Sample_iOS.zip
A sample program file

- DeviceControlProgram_Sample.zip
This file contains sample device control programs

- EULA.en.txt
Contains the SOFTWARE LICENSE AGREEMENT

- EULA.ja.txt
Contains the SOFTWARE LICENSE AGREEMENT (The Japanese-language edition)

- ePOS_SDK_iOS_um_en_revx.pdf
A user's manual

- ePOS_SDK_iOS_um_ja_revx.pdf
A user's manual (The Japanese-language edition)

- ePOS_SDK_iOS_Migration_Guide_en_revx.pdf
A migration guide

- ePOS_SDK_iOS_Migration_Guide_ja_revx.pdf
A migration guide (The Japanese-language edition)

- TM-DT_Peripherals_en_revx.pdf
This is the TM-DT Series Peripheral Device Control Guide

- TM-DT_Peripherals_ja_revx.pdf
This is the TM-DT Series Peripheral Device Control Guide (The Japanese-language edition)

- JSON_Spec_sheet_revx.pdf
JSON specification sheet

- SB-H50_Peripherals_ja_revx.pdf
This is the SB-H50 Peripheral Device Control Guide (The Japanese-language edition)

- README.en.txt
This file

- README.ja.txt
The Japanese-language edition of this file

- OPOS_CCOs_1.14.001.msi
This is the OPOS CCO installer package

・PrivacyInfo.xcprivacy
This is the PrivacyManifest.
For detailed information about PrivacyManifest, please refer to Apple Store Requirements.

5. Remarks

- For detailed information, please see Epson ePOS SDK for iOS User's Manual.

- Under TCP/IP connection at iOS9.x, set the default gateway address to the
network router.

- When printing process is repeated, create and destroy the instance of Printer class
outside the iteration process and do not repeat it at short intervals.

- Call addTextLang API in first on each print data.

- In the following cases, please acquire the firmware list using the -AB option of download-FirmwareList.
-When updating the firmware from 13. ESC/POS to 13. ESC/POS on TM-m30III and TM-m30III-H printers.
-When updating the firmware from 63. ESC/POS to 63. ESC/POS on TM-T88VI and TM-T88VII printers.

6. Restriction

- Discovery function of the following TM Intelligent printer doesn't support.

TM-DT series (TM-DT software version 3.01 or earlier)
TM-i series (TM-i firmware version 4.30 or earlier)

If you turn on the TM Intelligent printer after starting the search, the TM Intelligent
printer may not be detected. In that case, leave enough time for the TM Intelligent printer
to become printable, then start the search again.

- BluetoothConnection function of the following iOS Version execute connectDevice API,
the application may crash in a state in which to disable the Bluetooth settings.

iOS 10.0.1

- In iOS 11, if the application fails to connect API via Bluetooth connection, please wait
about 100 msec before executing connect API.

7. Version History

Version 2.33.1
[Bug fix]
- Fixed an issue where no response was received from the printer after reconnection.

Version 2.33.0
[Function change]
- For Users in Europe, the Middle East and Africa European Radio Equipment Directive. Changes in the enhanced security specifications.
[Updated support OS]
- Added iOS/iPad versions support
- iOS 17.7.1 to 17.7.7
- iOS 18.1 to 18.5
- iPadOS 17.7.1 to 17.7.7
- iPadOS 18.1 to 18.5
[Updated supplied Files]
- The software license agreement has been updated.

Version 2.32.0
[New Function]
- Added LE Secure Connections support.

Version 2.31.0a
[Updated supplied Files]
- Added SB-H50 Peripheral Device Control Guide.

Version 2.31.0
[Function change]
- Support for updating to cloud service-compatible firmware
[Updated support OS]
- Added iOS/iPad versions support
- iOS 17.1 to 17.7
- iOS 18
- iPadOS 17.1 to 17.7
- iPadOS 18
- Removed support iOS/iPadOS versions
- iOS 14 to 14.6
- iPadOS 14 to 14.6

Version 2.30.0a
- The library is the same as Ver.2.30.0.
[Updated support model]
- TM-T20IV
- TM-T20IV-SP
- TM-T82IV

Version 2.30.0
[Updated support model]
- SB-H50 Japanese model

Version 2.29.1a
- The library is the same as Ver.2.29.1.
[Updated support model]
- TM-T20IV-L
- TM-T20X-II
- TM-T82X-II
- TM-T82IV-L
- TM-T83IV

Version 2.29.1
- Fixed an issue where a duplicate symbol '_FWUPDATE_DELEGATE_WRITE' error may occur when building an app with the -ObjC option specified on Other Linker Flags.

Version 2.29.0
- Added PrivacyManifestFile
For detailed information about PrivacyManifest, please refer to Apple Store Requirement.
[Function change]
- Removed support of Library for function execution.
- ARMv7
- ARMv7s
- i386
- Improved stability of Bluetooth connection.

Version 2.28.0
[Function change]
- Fixed an error when connecting via USB/BT in the LFCPrinter class.
[Updated support model]
- TM-U220II
[Bug fix]
- Fixed issue that could cause a crash when disconnecting after ERR_DISCONNECT occurred when controlling ePOS-Device.

Version 2.27.0a
- The library is the same as Ver.2.27.0.
[Function change]
- The software license agreement has been updated.
[Updated support OS]
- Added iOS/iPad versions support
- iOS 16.5 to 16.7.1
- iOS 17
- iPadOS 16.5 to 16.7.1
- iPadOS 17
- Removed support iOS/iPadOS versions
- iOS 13 to 13.7
- iPadOS 13.1 to 13.7

Version 2.27.0
- Added iOS versions support
- iOS 16.5 to 16.5.1
- iPadOS 16.5.1
- Added new functions for Japanese users.

Version 2.26.0
- Added new functions
- Added LFCPrinter Class.
- Added iOS versions support
- iOS 16.5
- iPadOS 16.5

Version 2.25.0
- Added iOS versions support
- iOS 16.4 to 16.4.1
- iPadOS 16.4 to 16.4.1

Version 2.24.0a
- The library is the same as Ver.2.24.0.
- Added TM printer support
- TM-m50II-H
- Added iOS versions support
- iOS 16.2 to 16.3
- iPadOS 16.2 to 16.3
- Added support for printers on getPrinterSettingEx API
- TM-m30
- TM-m50

Version 2.24.0
- Added TM printer support
- TM-m50II
- Added new functions
- Added PaperTakenSensor status in Printer Class.

Version 2.23.0
- Added support iOS/iPadOS versions
- iOS 16 - 16.1
- iPadOS 16.1
- Removed support iOS/iPadOS versions
- iOS 12.5.5
- Added TM printer support
- TM-m30III
- TM-m30III-H
- Changed the maximum log capacity specified by the logSize of setLogSettings API from 50 MB to 1000 MB

Version 2.22.0
- Added support iOS/iPadOS versions
- iOS,iPadOS 15.1 - 15.5
- Added TM printer support
- TM-P20II
- TM-P80II
- Changed library file format to xcframework.
- Added new functions
- Added verifyPassword API in Printer Class.
- Added setPrinterSettingEx API with printer's password in Printer Class. SetPrinterSettingEx API without password is deprecated.
- Added full-cut parameter on addCut API.

Version 2.20.0
- Added support iOS/iPadOS versions
- iOS 12.5.5, 15.0 - 15.0.2
- iPadOS 15.0 - 15.0.2
- Removed support iOS/iPadOS versions
- iOS 11.x
- iOS 12 - 12.4.3
- Added TM printer support
- TM-L100

Version 2.19.0
- Added support iOS/iPadOS versions
- iOS 14.5, 14.6
- iPadOS 14.5, 14.6
- Added TM printer support
- TM-L90 Liner-Free Label Printer Model

Version 2.18.0
- Added support iOS/iPadOS versions
- iOS 14.4
- iPadOS 14.4
- Added TM printer support
- TM-T88VII
- Improved printer search speed.
- Bug fix
- Fixed a rare crash when using multiple classes at the same time with the printer turned off.

Version 2.17.1
- Added support iOS/iPadOS versions
- iOS 14.2
- iPadOS 14.2
- Improved printer search function on iOS 14
- Bug fix
- Fixed issue that the print layout is broken when page mode is used on TM-m30II(during ESC/POS control)

Version 2.17.0
- Added support iOS/iPadOS versions
- iOS 14.1
- iPadOS 14.1
- iOS 10.x was removed from support OS
- Removed support iOS/iPadOS Devices
- iPhone 5 / 5c
- iPad 4th generation
- Added customer display support
- DM-D70
- Added new functions
- Added GetPrinterInformation API in Printer Class.
- Improved performance of operate API in GermanyFiscalElement class.

Version 2.16.0
- Added support iOS/iPadOS versions
- iOS 13.3.1 - 13.6
- iPadOS 13.3.1 - 13.6
- Added TM printer support
- TM-m30II-S
- TM-m30II-NT
- TM-m50
- Bug fix
- Fixed issue that the ePOS SDK's reconnecting process doesn't end rarely　when the iOS device go into sleep mode during the ePOS SDK's reconnecting process.
- Added new functions
- Added "CODE128 auto" parameter on addBarcode API.

Version 2.14.0
- Added support iOS/iPadOS versions
- iOS 13 to 13.3
- iPadOS 13.1 to 13.3
- Added TM printer support
- TM-m30II
- TM-m30II-H
- Added new functions
- Batch rotate printing
- UTF-8 printing

Version 2.13.0
- Added support iOS/iPadOS versions
- iOS 12.3 to 12.4.3
- iOS 13 to 13.2.3
- iPadOS 13.1 to 13.2.3
- iOS 9.x was removed from support OS
- Removed support iOS/iPadOS Devices
- iPhone 4S
- iPod touch 5th generation
- iPad2 / iPad 3rd generation
- iPad mini
- Added new functions
- GermanyFiscalElement class
- FirmwareUpdate method in Epos2Printer class

Version 2.12.2
- Bug fix
- Fixed issue where endTransaction API rarely causes an application to hang up.

Version 2.12.1
- Bug fix
- Fixed issue parameter error is rarely returned when call start API in Discovery class.
- Fixed issue application hang up rarely when calling several API continuously.

Version 2.12.0
- Added iOS version support
- iOS 12.2
- Added TM printer support
- TM-T20III
- TM-T82III
- Barcode scanner can now be connected to TM-T88VI.
- Added the following to the package
- Sample of simple POS application
- Bug fix
- Fixed issue where wrong printing when connect/disconnect API is continuously in TM-U220.
- Fixed rarely crash when multiple responses are received from the printer at the same time.
- Fixed issue where tablet CPU usage will be 100% when returning from sleeping after executing connect API.
- Fixed issue where connect API takes long time depending on environment.

Version 2.11.0
- Added iOS version support
- iOS 12.1
- Added TM printer support
- TM-T20IIIL
- TM-T20X
- TM-T81III
- TM-T82X
- TM-T82IIIL
- TM-T83III
- TM-T100
- AddTextSize API and addLogo API can use in TM-U330.
- GetAdmin API and getLocation API can use other than TM-DT series and TM-i series.
- Bug fix
- Fixed issue where callback of sendData API takes more than 30 seconds when the printer is offline or printer become off-line during printing.
- Fixed crash when SimpleSerial class is used.
- Fixed crash when sendData API is sent several times without waiting a callback of sendData API.
- Fixed issue where parameter error is returned when addLayout API is used in TM-P80.
- Fixed issue where connect API rarely causes an application to hang up.

Version 2.9.2a
- The library is the same as Ver.2.9.2.
- Added TM printer support
- TM-T70II-DT2
- TM-T88VI-DT2
- Added iOS Devices
- iPhone 8 / 8 Plus / X
- iPad 5th generation / 6th generation
- iPad Pro 12.9-inch 2nd / 10.5-inch
- Added iOS versions support
- iOS 12 to 12.0.1
- iOS 8.x was removed from support OS.

Version 2.9.2
- Bug fix
- Fixed the TM-U330 cannot print second color at addTextStyle() and addImage().

Version 2.9.0
- Added iOS versions support
- iOS 11.2.2 to 11.2.6
- iOS 11.3 to 11.3.1
- iOS 11.4 to 11.4.1
- Barcode scanner can now be connnected to TM-m30.
- Added peripheral devices support to TM-DT series
- POSKeyboard class
- OtherPeripheral class
- MSR class
- Added the following to the package
- Sample of device control programs
- TM-DT Series Peripheral Device Control Guide
- OPOS CCO installer package
- The disconnection detection time can be set on the TM-DT side.
- Status update events other than EPOS2_EVENT_POWER_OFF are now notified immediately,
regardless of the value of interval, only when the device ID is not added to
the target parameter of connect () of the Printer class.
- Updated the OpenSSL embedded in the library from version 1.0.2k to version 1.0.2o.
- Bug fix
- Fixed the Printer class does not correctly notify errors during printing.
- Fixed the application hangs up when disconnect is executed after transitioning
the application to the background with the Printer connected by Bluetooth connection,
returning it to the foreground.
- Fixed causes link error with some third party libraries.
- Fixed a phenomenon in which a TM printer that does not support LineDisplay connection
executes connect when the printer is in the offline state and executes sendData after that,
no offline factor error is returned and a TIMEOUT error is returned.
- Fixed printing of Printer or display of LineDisplay might be delayed by the monitoring
interval of status monitor.
- Fixed the application may be forcibly terminated if a physical communication disconnection
(disconnection of the LAN cable, etc.) occurs during execution of the connect API on
TCP connection.
- Fixed parseNFC() may fail in the network environment where UB-E03 exists.

Version 2.7.0
- Added TM printer support
- TM-H6000V
- Added support device
- DM-D210
- Added devices class support
- HybridPrinter class
- Added iOS versions support
- iOS 11.0.1 to 11.0.3
- iOS 11.1 to 11.1.2
- iOS 11.2 to 11.2.1
- Keep the TCP connection even though no data transmitted.
- Using TM-U330, QR Code, Code 39, Code 128 can be printed.
- Bug fix
- Fixed the stop API of Epos2Discovery class may take time to execute.
- Fixed a phenomenon that the application may be forcibly terminated when
physical communication disconnection (disconnection of LAN cable, etc.)
occurs while connecting with TCPS.
- Fixed the application may be forcibly terminated when searching for a
network-connected printer.

Version 2.6.0
- Added TM printer support
- TM-T88VI Japanese model
- Added iOS versions support
- iOS 11
- iOS 7.x was removed from support OS.
- Added NFC support
- Added sample program of Swift 3.1.

Version 2.5.2
- Added iOS versions support
- iOS 10.3 to 10.3.2
- Bug Fixed
- Fixed the application may hang up,
when disconnect () is executed on another thread immediately after onPtrReceive () is called.

Version 2.5.1a
- Corrected the mistake of user's manual (The Japanese-language edition).

Version 2.5.1
- Added iOS versions support
- iOS 10.2 to 10.2.1
- If the customer display is connected to the TM printer and communication is disconnected
due to the printer's power OFF / ON, etc., communication will be restored by reconnecting
with either the printer or the customer display.
- Added "EPOS2_COVER_OPEN" to autoRecoverError of PrinterStatusInfo.
- Added "EPOS2_CODE_ERR_REQUEST_ENTITY_TOO_LARGE" that returns when print job data with the size
exceeding the capacity of the printer firmware was transmitted.
- Updated the OpenSSL embedded in the library from version 1.0.2h to version 1.0.2k.
- Bug Fixed
- Fixed "EPOS2_ERR_NOT_FOUND" may be returned when executing the disconnect API of LineDisplay.
- Fixed the initial value of the status monitor update interval may be 1 second.
- Fixed the application may be terminated if status monitor is enabled for TM intelligent
printer with SSL enabled.
- Fixed in case of TCP/IP connection, the application may be terminated when search start
and stop repeatedly.
- Fixed the application be terminated when getCommHistory API and disconnect API
are executed sequentially when CommBox has transmission history.

Version 2.5.0
- Added TM printer support
- TM-P80 Japanese model
- Bug Fixed
- Fixed the application may hang up when turning off the printer at disconnect API execution.
- Fixed the sendData API callback may not be notified when offline occurs while printing with TM-P series.

Version 2.4.2
- Bug Fixed
- Fixed printable width of addImage API, when the printer supports 42 columns mode.

Version 2.4.0
- iOS 6.x was removed from support OS.
- Added TM printer support
- TM-T88VI-iHUB
- TM-T81II Vietnam model
- TM-m30 South Asia model
- Added iOS versions support
- iOS 10.0.1
- Added iOS device support
- iPhone SE
- iPhone 7
- iPhone 7 Plus
- Added iBeacon support
- Added SSL communication support
- Added multi-lingual keyboard support
- Changed of sample program constitution
- Bug Fixed
- Fixed a secondary connection I/F may fail printing.
- Fixed printing notification may takes time when printing from a secondary connection I/F.
- Fixed incorrect information may be returned by getPrefix API.
- Fixed the search result for a peripheral device of intelligent printer.
(The contents of the DeviceInfo structure might not be correct.)
- Fixed the next sendData API may fail even though printer is online when previous sendData API
was called while printer was offline.
- Fixed in case of TCP/IP connection, application may hang up when you execute disconnect API,
when the sendData API became the error of transmission failure.
- Added "EPOS2_CODE_ERR_TOO_MANY_REQUESTS" that returns when the number of print jobs or data to be displayed
on a display has exceeded the allowable limit of the printer's firmware.

Version 2.3.0
- iOS 9.3.x was removed from support OS.
- Added TM printer support
- TM-T60
- TM-m30 Korean model
- Bug Fixed
- Fixed disconnect API may not returned when the API is called.
* This situation only happen with TM Intelligent Printers.

Version 2.2.0
- Added iOS versions support
- iOS 9.3.2
- Added iOS device support
- iPad Pro ( 9.7-inch )
- Added support for the following requirements of the App Store.
- All apps submitted to the App Store must support IPv6-only networking.

Version 2.1.0
- Added TM printer support
- TM-T88VI
- Added iOS versions support
- iOS 9.1 to 9.3.1
- Added iOS device support
- iPad Pro ( 12.9-inch )
- Added Bitcode support
- Added a Swift sample program(ePOS2_Printer_Swift)
- Added a function getSdkVersion to retlieve SDK version in Epos2Log class
- Improved TM-U220 functions.
- Added double density of addImageAsync API in Printer class
- Added second color of addTextStyle API in Printer class
- Added addTextSize API in Printer class
- Added addLogo API in Printer class
- Bug Fixed
- Fixed the rest of data is printed when OFFLINE condition happened
while printing and then the OFFLINE condition is resolved.
- Fixed printer status is "Connected" even though turn off printer
while printing.
* This situation only happen with TM-P20/TM-P60II/TM-m10/TM-m30/TM-T90II.
- Fixed disconnection event may not occur when disconnect API is called.
- Fixed the addFeedPosition API can not feed paper correctly.

Version 2.0.0
- New release

Copyright (C) Seiko Epson Corporation 2015 - 2025. All rights reserved.
=========================================================================

1.Note
The Epson ePOS SDK for Android is an SDK aimed at development engineers who are
developing Android applications for printing on an EPSON TM printer and an EPSON TM-
Intelligent printer.

2. Environment
[Support OS]
- Android Version 5.0 to 5.1.1
- Android Version 6.0 to 6.0.1
- Android Version 7.0 to 7.1.2
- Android Version 8.0 to 8.1
- Android Version 9.0
- Android Version 10.0
- Android Version 11.0
- Android Version 12.0
- Android Version 13.0
- Android Version 14.0
- Android Version 15.0
- Android Version 16.0

[Support interface]
[TM Printer]
- Wired LAN
- Wireless LAN
- Bluetooth
- USB (TypeA/TypeB/TypeC)
[TM-Intelligent Printer]
- Wired LAN
[TM-T88VI-iHUB]
- Wired LAN
- Wireless LAN
- USB

[Development environment]
- Android SDK r15 or later
- Java Development Kit 7 or later

[Android Device]
- Devices that support ARMv5TE
- Devices that support AArch64
- Devices that support x86-64
- Devices that support armeabi-v7a
- Devices that support x86

3. Supported Products
For detailed information, please see Epson ePOS SDK for Android User's Manual.

4. Supplied Files

- ePOS2.jar
Compiled Java class file, archived into a jar format file to allow APIs
to be used from Java programs.

- ePOSEasySelect.jar
A Java class file for selecting a printer easily

- libepos2.so
Library for function execution (ARMv5TE, AArch64 and x86-64 supported)

- libeposeasyselect.so
Library for the ePOSEasySelect function execution (ARMv5TE, AArch64 and x86-64 supported)

- ePOS_SDK_Sample_Android.zip
A sample program file

- DeviceControlProgram_Sample.zip
This file contains sample device control programs

- EULA.en.txt
Contains the SOFTWARE LICENSE AGREEMENT

- EULA.ja.txt
Contains the SOFTWARE LICENSE AGREEMENT (The Japanese-language edition)

- ePOS_SDK_Android_um_en_revx.pdf
A user's manual

- ePOS_SDK_Android_um_ja_revx.pdf
A user's manual (The Japanese-language edition)

- ePOS_SDK_Android_Migration_Guide_en_revx.pdf
A migration guide

- ePOS_SDK_Android_Migration_Guide_ja_revx.pdf
A migration guide (The Japanese-language edition)

- TM-DT_Peripherals_en_revx.pdf
This is the TM-DT Series Peripheral Device Control Guide

- TM-DT_Peripherals_ja_revx.pdf
This is the TM-DT Series Peripheral Device Control Guide (The Japanese-language edition)

- JSON_Spec_sheet_revx.pdf
JSON specification sheet

- SB-H50_Peripherals_ja_revx.pdf
This is the SB-H50 Peripheral Device Control Guide (The Japanese-language edition)

- README.en.txt
This file

- README.ja.txt
The Japanese-language edition of this file

- OPOS_CCOs_1.14.001.msi
This is the OPOS CCO installer package

5. Remarks

- For detailed information, please see Epson ePOS SDK for Android User's Manual.

- In the case of USB interface, it is recommended that you obtain permission
to access theUSB device in the application in advance.
Noted below, how to get the permission.
1. Enter the following code into the AndroidManifest.xml file.






android:resource="@xml/device_filter" />

2. Add the res/xml/device_filter.xml in resource file,
enter the following code into the device_filter.xml file.

Please select the OK button when you get the permission dialog is displayed.

If you don't obtain permission to access the USB device in advance,
there are the following notes when using the connect method.
- When you select the OK button in the Permissions dialog box, it takes a
long time of about 10 seconds to open port.
- When you select the Cancel button in the Permissions dialog box, it wait
for a timeout of 30 seconds.

- If you want to set the minifyEnabled to true in the Android Studio,
please add the followings to the proguard file.

-keep class com.epson.* { ; }
-dontwarn com.epson.**

Proguard file (proguard-rules.pro) is set as follows in build.gradle file.
buildTypes {
release {
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}

- When printing process is repeated, create and destroy the instance of Printer class
outside the iteration process and do not repeat it at short intervals.

- Call addTextLang API in first on each print data.

- The ePOS2_Printer sample program imports libepos2.so libraries
with all supported-architecture: x86_64, x86, armv-7 and arm64-v8a.
Other sample programs haven't imported all of the supported architectures.
Please copy/import the correct libraries that matches your architectures
for your development/release environment when building the other sample programs.

- In the following cases, please acquire the firmware list using the -AB option of download-FirmwareList.
-When updating the firmware from 13. ESC/POS to 13. ESC/POS on TM-m30III and TM-m30III-H printers.
-When updating the firmware from 63. ESC/POS to 63. ESC/POS on TM-T88VI and TM-T88VII printers.

6. Restriction

- Discovery function of the following TM Intelligent printer doesn't support.

TM-DT series (TM-DT software version 3.01 or earlier)
TM-i series (TM-i firmware version 4.30 or earlier)

If you turn on the TM Intelligent printer after starting the search, the TM Intelligent
printer may not be detected. In that case, leave enough time for the TM Intelligent printer
to become printable, then start the search again.

7. Version History

Version 2.33.1
[Function change]
- Support 16KB page sizes.
[Updated support OS]
- Android 16.0
[Bug fix]
- Fixed an issue where no response was received from the printer after reconnection.

Version 2.33.0
[Function change]
- For Users in Europe, the Middle East and Africa European Radio Equipment Directive. Changes in the enhanced security specifications.
[Updated supplied Files]
- The software license agreement has been updated.

Version 2.32.0
[Function change]
- Improved the quality of the sample program.

Version 2.31.0a
[Updated supplied Files]
- Added SB-H50 Peripheral Device Control Guide.

Version 2.31.0
[Function change]
- Support for updating to cloud service-compatible firmware
[Updated support OS]
- Android 15.0
[Bug fix]
- Improved the symptom where a crash could occur during the finalize method of classes provided by the ePOS SDK.
- Improved updateFirmware via USB Type-B.

Version 2.30.0a
- The library is the same as Ver.2.30.0.
[Updated support model]
- TM-T20IV
- TM-T20IV-SP
- TM-T82IV

Version 2.30.0
[Updated support model]
- SB-H50 Japanese model

Version 2.29.0a
- The library is the same as Ver.2.29.0.
[Updated support model]
- TM-T20IV-L
- TM-T20X-II
- TM-T82X-II
- TM-T82IV-L
- TM-T83IV

Version 2.29.0
[Function change]
- The sample programs can now be built using Android Studio Giraffe 2022.3.1.

Version 2.28.0
[Function change]
- Fixed an error when connecting via USB/BT in the LFCPrinter class.
[Updated support model]
- TM-U220II
[Bug fix]
- Fixed issue that could cause a crash when disconnecting after ERR_DISCONNECT occurred when controlling ePOS-Device.

Version 2.27.0a
- The library is the same as Ver.2.27.0.
[Function change]
- The software license agreement has been updated.
[Updated support OS]
- Android 14.0

Version 2.27.0
- Added new functions for Japanese users.

Version 2.26.0
- Added new functions
- Added LFCPrinter Class.

Version 2.25.0
- Improved the quality of the sample program.

Version 2.24.0a
- The library is the same as Ver.2.24.0.
- Added TM printer support
- TM-m50II-H
- Added support for printers on getPrinterSettingEx API
- TM-m30
- TM-m50

Version 2.24.0
- Added TM printer support
- TM-m50II
- Added new functions
- Added PaperTakenSensor status in Printer Class.

Version 2.23.0
- Added Android version support
- Android 13.0
- Added TM printer support
- TM-m30III
- TM-m30III-H
- Changed the maximum log capacity specified by the logSize of setLogSettings API from 50 MB to 1000 MB

Version 2.22.1
- Bug fix
- Fixed crash when communicating with a bluetooth printer without request bluetooth permission
on app API level is 31 or higher and Android 12 or higher terminal device.

Version 2.22.0
- Added Android version support
- Android 12.0
- Android 4.x was removed from support OS
- Added TM printer support
- TM-P20II
- TM-P80II
- Added new functions
- Added verifyPassword API in Printer Class.
- Added setPrinterSettingEx API with printer's password in Printer Class. SetPrinterSettingEx API without password is deprecated.
- Added full-cut parameter on addCut API.

Version 2.20.0
- Added TM printer support
- TM-L100

Version 2.19.0
- Added TM printer support
- EU-m30
- TM-L90 Liner-Free Label Printer Model
- Added new functions
- Added setPrinterSettingEx and getPrinterSettingEx API in Printer Class.

Version 2.18.0
- Added TM printer support
- TM-T88VII
- Improved printer search speed.
- Improved printer search function when the parameter bondedDevices of the start API of the Discovery class is TRUE.
- Bug fix
- Fixed a rare crash when using multiple classes at the same time with the printer turned off.

Version 2.17.1
- Added Android version support
- Android 11.0
- Improved printer search function on iOS 14
- Bug fix
- Fixed issue that the print layout is broken when page mode is used on TM-m30II(during ESC/POS control)

Version 2.17.0
- Added customer display support
- DM-D70
- Added new functions
- Added GetPrinterInformation API in Printer Class.
- Improved performance of operate API in GermanyFiscalElement class.

Version 2.16.0
- Added TM printer support
- TM-m30II-S
- TM-m30II-NT
- TM-m50
- Bug fix
- Fixed issue that the ePOS SDK's reconnecting process doesn't end rarely　when the iOS device go into sleep mode during the ePOS SDK's reconnectiong process.
- Added new functions
- Added "CODE128 auto" parameter to addBarcode API.
- Added "usbDeviceName" parameter to filterOption in Discovery class.

Version 2.14.0
- Added TM printer support
- TM-m30II
- TM-m30II-H
- Added new functions
- Batch rotate printing
- UTF-8 printing

Version 2.13.0
- Added support Android version
- Android 10.0
- Added support Android Devices
- armeabi-v7a-based Android devices
- x86-based Android devices
- Added new functions
- GermanyFiscalElement class
- FirmwareUpdate method in Printer class

Version 2.12.2
- Bug fix
- Fixed issue where endTransaction API rarely causes an application to hang up.

Version 2.12.1
- Bug fix
- Fixed issue application hang up rarely when calling several API continuously.

Version 2.12.0
- Added TM printer support
- TM-T20III
- TM-T82III
- Barcode scanner can now be connected to TM-T88VI.
- Added filterOption in Discovery class.
- bondedDevices : To search devices that were previously connected.
- Bug fix
- Fixed issue where wrong printing when connect/disconnect API is continuously in TM-U220.
- Fixed rarely crash when multiple responses are received from the printer at the same time.
- Fixed issue where tablet CPU usage will be 100% when returning from sleeping after executing connect API.
- Fixed issue where connect API takes long time depending on environment.

Version 2.11.0
- Added Android version support
- Android 8.1
- Android 9.0
- Added TM printer support
- TM-T20IIIL
- TM-T20X
- TM-T81III
- TM-T82X
- TM-T82IIIL
- TM-T83III
- TM-T100
- AddTextSize API and addLogo API can use in TM-U330.
- GetAdmin API and getLocation API can use other than TM-DT series and TM-i series.
- Bug fix
- Fixed issue where callback of sendData API takes more than 30 seconds when printer is offline or printer become off-line during printing.
- Fixed issue where order of printing is changed when sendData API is sent several times without waiting a callback of sendData API.
- Fixed issue where parameter error is returned when addLayout API is used in TM-P80.
- Fixed issue where connect API rarely causes an application to hang up.
- Fixed crash when Discovery is running in the background.

Version 2.10.0
- Added AArch64 and x86-64 based Android devices support

Version 2.9.2a
- The library is the same as Ver.2.9.2.
- Added TM printer support
- TM-T70II-DT2
- TM-T88VI-DT2

Version 2.9.2
- Bug fix
- Fixed the TM-U330 cannot print second color at addTextStyle() and addImage().

Version 2.9.0
- Barcode scanner can now be connected to TM-m30.
- Status update events other than Printer.EVENT_POWER_OFF are now notified immediately,
regardless of the value of interval, only when the device ID is not added to
the target parameter of connect () of the Printer class.
- Bug fix
- Fixed a phenomenon in which a TM printer that does not support LineDisplay connection
executes connect when the printer is in the offline state and executes sendData after that,
no offline factor error is returned and a TIMEOUT error is returned.
- Fixed printing of Printer or display of LineDisplay might be delayed by the monitoring
interval of status monitor.
- Fixed the application may be forcibly terminated if a physical communication disconnection
(disconnection of the LAN cable, etc.) occurs during execution of the connect API on
TCP connection.
- Fixed parseNFC() may fail in the network environment where UB-E03 exists.

Version 2.8.1
- Added peripheral devices support
- POSKeyboard class
- OtherPeripheral class
- MSR class
- Added the following to the package
- Sample of device control programs
- TM-DT Series Peripheral Device Control Guide
- OPOS CCO installer package
- Updated the OpenSSL embedded in the library from version 1.0.2k to version 1.0.2o.
- Bug fix
- Fixed the Printer class does not correctly notify errors during printing.

Version 2.7.0
- Added TM printer support
- TM-H6000V
- Added support device
- DM-D210
- Added devices class support
- HybridPrinter class
- Added Android version support
- Android 7.1.2
- Android 8.0
- Keep the TCP connection even though no data transmitted.
- Using TM-U330, QR Code, Code 39, Code 128 can be printed.
- Bug fix
- Fixed the stop API of Discovery class may take time to execute.
- Fixed the application may be forcibly terminated when using ePOS-Print
compatible API with USB connection.
- Fixed a phenomenon that the application may be forcibly terminated when
physical communication disconnection (disconnection of LAN cable, etc.)
occurs while connecting with TCPS.
- Fixed the application may be forcibly terminated when searching for a
network-connected printer.

Version 2.6.0
- Added TM printer support
- TM-T88VI Japanese model
- Bug fix
- Fixed printing of Printer or display of LineDisplay might be delayed by the monitoring
interval of status monitor.

Version 2.5.2
- Bug Fixed
- Fixed the application may hang up,
when disconnect () is executed on another thread immediately after onPtrReceive () is called.

Version 2.5.1a
- Corrected the mistake of user's manual (The Japanese-language edition).

Version 2.5.1
- Added Android version support
- Android 7.1.1
- If the customer display is connected to the TM printer and communication is disconnected
due to the printer's power OFF / ON, etc., communication will be restored by reconnecting
with either the printer or the customer display.
- Added "Printer.COVER_OPEN" to autoRecoverError of PrinterStatusInfo.
- Added "CODE_ERR_REQUEST_ENTITY_TOO_LARGE" that returns when print job data with the size
exceeding the capacity of the printer firmware was transmitted.
- Updated the OpenSSL embedded in the library from version 1.0.2h to version 1.0.2k.
- Bug Fixed
- Fixed "ERR_NOT_FOUND" may be returned when executing the disconnect API of LineDisplay.
- Fixed the initial value of the status monitor update interval may be 1 second.
- Fixed the application may be terminated if status monitor is enabled for TM intelligent
printer with SSL enabled.
- Fixed in case of TCP/IP connection, the application may be terminated when search start
and stop repeatedly.

Version 2.5.0
- Added TM printer support
- TM-P80 Japanese model
- Bug Fixed
- Fixed the application may hang up when turning off the printer at disconnect API execution.
- Fixed the sendData API callback may not be notified when offline occurs while printing with TM-P series.

Version 2.4.2
- Bug Fixed
- Fixed printable width of addImage API, when the printer supports 42 columns mode.

Version 2.4.1
- Updated the OpenSSL embedded in the library to the new version.

Version 2.4.0
- Added TM printer support
- TM-T88VI-iHUB
- TM-T81II Vietnam model
- TM-m30 South Asia model
- Added Android version support
- Android 6.0.1
- Android 7.0
- Added SSL communication support
- Added multi-lingual keyboard support
- Bug Fixed
- Fixed a secondary connection I/F may fail printing.
- Fixed printing notification may takes time when printing from a secondary connection I/F.
- Fixed incorrect information may be returned by getPrefix API.
- Fixed the search result for a peripheral device of intelligent printer.
(The contents of the DeviceInfo structure might not be correct.)
- Fixed the next sendData API may fail even though printer is online when previous sendData API
was called while printer was offline.
- Fixed in case of TCP/IP connection, application may hang up when you execute disconnect API,
when the sendData API became the error of transmission failure.
- Added "CODE_ERR_TOO_MANY_REQUESTS" that returns when the number of print jobs or data to be displayed
on a display has exceeded the allowable limit of the printer's firmware.

Version 2.3.0
- Added TM printer support
- TM-T60
- TM-m30 Korean model
- Bug Fixed
- Fixed disconnect API may not returned when the API is called.
* This situation only happen with TM Intelligent Printers.

Version 2.1.0
- Added TM printer support
- TM-T88VI
- Added Android version support
- Android 6.0
- Added the getSdkVersion API for getting SDK version in Log class
- Improved TM-U220 functions.
- Added double density of addImageAsync API in Printer class
- Added second color of addTextStyle API in Printer class
- Added addTextSize API in Printer class
- Added addLogo API in Printer class
- Bug Fixed
- Fixed the rest of data is printed when OFFLINE condition happened
while printing and then the OFFLINE condition is resolved.
- Fixed printer status is "Connected" even though turn off printer
while printing.
* This situation only happen with TM-P20/TM-P60II/TM-m10/TM-m30/TM-T90II.
- Fixed disconnection event may not occur when disconnect API is called.
- Fixed the parseNFC API parses only the first data of the NFC tag that has multiple tag data.
- Fixed the addFeedPosition API can not feed paper correctly.

Version 2.0.0
- New release