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Chapter 5 Command Transmission/Reception
5
Exceptions
When processing fails, EpsonIoException is thrown with one of the following error values.
Error Value Description
IoStatus.ERR_ILLEGAL This API was called when no device port was open.
IoStatus.ERR_PROCESSING Could not execute process.
IoStatus.ERR_PARAM Invalid parameter was passed.
IoStatus.ERR_CONNECT Connection error occurred
IoStatus.ERR_MEMORY Could not allocate memory.
IoStatus.ERR_FAILURE An unspecified error occurred.
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