CITIZEN Android Label Print SDK — Programming Manual
2. API specification
2.1. Return value
The operation has been done successfully.
The printer is already connected.
The printer is not connected.
Failed to connect to the printer.
CLS_E_CONNECT_NOTFOUND (1004)
Failed to confirm the model name after connecting to the printer.
The Bluetooth device setting is invalid.
The Bluetooth device is not found.
The operation is not supported by the printer or an invalid parameter
was used.
The file name does not exist.
The service could not perform the requested procedure.
The service has been timed out waiting for a response from the printer.
A printer could not be found for the printer search.
CLS_EPTR_BADFORMAT (1203)
The file format is not supported.