First make sure that the ZD410 printer and pair with your Android device by itself as to make sure that the printer is capable of a Bluetooth connection with the device.
As far as having your app communicate via Bluetooth to the printer, we recommend developing your app with the Link-OS™ Multiplatform SDK | Zebra
It contains Andoid APIs that allow for Bluetooth communication with Zebra printers.
Also, since you are printing a PDF, I wanted to ask if you were able to convert it into an image and wrap it in ZPL. The PDF would need to converted into ZPL in order for it to print on the ZD410.
Thanks for reply Greg
I checked direct Bluetooth connection with my Nexus 7 and it's works well.
Then i downloaded and installed Link-OS SDK as you said, but unfortunately it's still doesn't work, i was trying to use demo app provided with installation package "ZSDK_DemosAndroid".
Here is what i got with "Printer Status" function
03-31 10:36:21.236 633-694/? W/qcom_sensors_hal: hal_sensor1_data_cb: SENSOR1_MSG_TYPE_BROKEN_PIPE
03-31 10:36:21.264 23281-23281/? E/Diag_Lib: Diag_LSM_Init: Failed to open handle to diag driver, error = 2
03-31 10:36:21.264 23281-23281/? E/Sensors: sns_fsa_la.c(386):fsa: fflush failed, 9
03-31 10:36:21.265 23281-23281/? E/Sensors: sns_fsa_la.c(386):fsa: fflush failed, 9
03-31 10:36:21.293 23281-23283/? W/Sensors: sns_smr_la.c(446):smr_la: smr_apps_la_thread_main is starting, fd=11, sns_smr.en_rx_msg_ptr=b7002a00
03-31 10:36:21.312 23281-23285/? W/Sensors: sns_sam_app.c(6827):sns_sam_reg_algo: Registering algo service 16, err 0
03-31 10:36:21.319 23281-23287/? E/Sensors: sns_debug_main.c(565):Debug Config File missing in EFS!
03-31 10:36:24.816 17048-17114/? W/bt_rfcomm: PORT_StartCnf failed result:4
03-31 10:36:24.823 17048-17116/? E/bt_btif_sock_rfcomm: find_rfc_slot_by_id unable to find RFCOMM slot id: 8
03-31 10:36:24.825 19328-23242/com.zebra.android.devdemo W/BluetoothAdapter: getBluetoothService() called with no BluetoothManagerCallback
03-31 10:36:29.987 17048-17114/? W/bt_sdp: SDP - Rcvd conn cnf with error: 0x4 CID 0x49
03-31 10:36:29.990 17048-17116/? E/bt_btif_sock_rfcomm: find_rfc_slot_by_id unable to find RFCOMM slot id: 9
Printer configuration label
What version of Android are you running?
following devices was tested:
Nexus 7 - Android 6.0.1
LG G2 - Android 5.0.2
Samsung A7 - Android 5.0.2
Samsung Galaxy S 2 - Android 4.1.2
Samsung Galaxy S 2 direct bluetooth connection can't discover printer.
I'm wondering if you have a Bluetooth LE only sku of the printer.
Could you please give me the model number for underneath the printer?
It would look like:
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Thank for providing the SKU of your printer.
This confirms my suspicion that you have a Bluetooth LE only printer.
SKUs of the ZD410 that indicate a Bluetooth LE only printer are ZD4xxxx-xxx$xxxx where $ is E, F, M, or S.
Bluetooth LE is not a sufficient connection for an Android device to connect and print to the printer.
In order to be able to connect and print via Bluetooth from an Android device, the printer would require Bluetooth Classic capabilities.
SKUs of the ZD410 that indicate a Bluetooth Classic capabilities in addition to Bluetooth LE are ZD4xxxx-xxx$xxxx where $ is A, B, L, or W.
My recommendation would be to exchange the ZD410 printer that you have for a printer that has a Bluetooth Classic SKU.