Epson TM-T20II-i ePOS-Device XML Users Manual For TM-i firmware v4.1 - Page 61
Sub-element, Data type, Description, Element value, DEVICE_OPEN_ERROR
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Chapter 4 ePOS-Device XML Response Returns the device open result to the application. Sub-element device_id code Data type string string data_id int Description The device ID designated with the request. The processing result. For details, refer to the code below. If "true" is designated for of the message, the sent data ID is set. If "false" is designated, a space is set. ❏ code Element value "OK" "DEVICE_NOT_FOUND" "DEVICE_IN_USE" "DEVICE_OPEN_ERROR" "DRIVER_ERROR" "SYSTEM_ERROR" "DEVICE_TYPE_INVALID" "PARAM_ERROR" Description Processed successfully The designated device does not exist The designated device is in use Failed to open the designated device An error occurred in the device control script System error occurred The designated device type is invalid Parameter error occurred ❏ Example Normal 4 scanner_001 OK 2 Error DEVICE_NOT_FOUND scanner_001 2 61