sendData

Sends the print command.

Specifies the maximum time (in milliseconds) to wait for communication with the printer to be established.

Value	Description	Default
5000 to 600000*	Timeout period (in milliseconds)	10000

Error status	Description
ERR_PARAM	An invalid parameter was passed.
ERR_MEMORY	Necessary memory could not be allocated.
ERR_FAILURE	An unknown error occurred.
ERR_PROCESSING	Could not run the process.
ERR_ILLEGAL	The control commands have not been buffered. This API was called while no communication had been started.
CODE_ERR_AUTORECOVER	Automatic recovery error occurred.
CODE_ERR_COVER_OPEN	Cover open error occurred.
CODE_ERR_CUTTER	Auto cutter error occurred.
CODE_ERR_MECHANICAL	Mechanical error occurred.
CODE_ERR_EMPTY	No paper is left in the roll paper end detector.
CODE_ERR_UNRECOVERABLE	Unrecoverable error occurred.
CODE_ERR_FAILURE	Error exists in the requested document syntax.
CODE_ERR_NOT_FOUND	Printer specified by the device ID does not exist.
CODE_ERR_SYSTEM	Error occurred with the printing system.
CODE_ERR_PORT	Error was detected with the communication port.
CODE_ERR_TIMEOUT	Print timeout occurred.
CODE_ERR_JOB_NOT_FOUND	Specified print job ID does not exist.
CODE_ERR_SPOOLER	Print queue is full.
CODE_ERR_BATTERY_LOW	Battery has run out.
CODE_ERR_TOO_MANY_REQUESTS	The number of print jobs sent to the printer has exceeded the allowable limit.
CODE_ERR_REQUEST_ENTITY_TOO_LARGE	The size of the print job data exceeds the capacity of the printer.
CODE_ERR_WAIT_REMOVAL	Print command sent while waiting for paper removal.

For Bluetooth connection, the offline status may not be detected and a timeout error may occur.
To get the "adapter" or "batteryLevel" status, you need to enable transmission of power on/off and bat- tery status using Epson TM Utility.
To get the "paperTakenSensor" status, you need to enable the "Paper Taken Sensor Status" setting using Epson TM Utility.

sendData​