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Appendix
The iOS application cannot receive the data sent from the printer
Situation
Although the printer sends data to the iOS device and the data is received by the iOS device, depending on the
combination of the iOS version and the iOS device, the iOS application may not be able to receive the data.
Conditions
This may occur in combinations of the following conditions.
•
iOS version: 7.1, 7.1.1
•
iOS device: iPhone 5s, iPhone 5c, iPhone 5, iPad Air, iPad mini 3, iPad (4th generation), iPad mini, iPod
touch (5th generation), iPhone 4s, iPhone 4, iPad (3rd generation), iPad 2
•
Application processing: If the Bluetooth port is closed and then reopened while the application is running.
Solution
The solution differs depending on the iOS device being used. See the following table.
NFC Tag
iOS Device
Solution
iPhone 4s
iPhone 4
iPad (3rd generation)
iPad 2
This situation can be avoided by using the Epson ePOS SDK for iOS.
Transmission standard
ISO14443 A
Frequency
13.56 MHz
Memory
144 byte
Transmission distance
Approximately 10 mm from the NFC installation location.
•
The transmission distance is an estimate that depends on our experiment conditions and is not a
guaranteed value.
•
It varies based on the installation environment and target device.
Содержание TM-P80II Plus
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Страница 83: ...83 Chapter 4 Advanced Usage ...
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