Epson TM-m30II Technical Reference Guide TM-m30II-H - Page 114

NFC Tag, The iOS application cannot receive the data sent from the printer

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Appendix Solution Do not send data to the printer if the printer is not ready to print. For developers using the SDK from Epson, see the User's Manual - Chapter 3 Programming Guide - "Printing After Checking the Printer Status". Since Bluetooth is disconnected when this occurs, if the auto reconnect feature is not enabled, you need to reconnect from the Bluetooth settings screen on the iOS device. When using the SDK from Epson, this connection process is not necessary. 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. 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. NFC Tag Transmission standard Frequency Memory Transmission distance ISO14443 A 13.56 MHz 144 byte 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. 114

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114
Appendix
Solution
Do not send data to the printer if the printer is not ready to print.
For developers using the SDK from Epson, see the User's Manual - Chapter 3 Programming Guide - "Printing
After Checking the Printer Status".
Since
Bluetooth
is disconnected when this occurs, if the auto reconnect feature is not enabled, you need to
reconnect from the
Bluetooth
settings screen on the iOS device.
When using the SDK from Epson, this connection process is not necessary.
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.