Обнаружен недопустимый символ XML (Unicode: 0xc)

Анализ XML-файла с помощью парсера Java DOM приводит к следующему:

[Fatal Error] os__flag_8c.xml:103:135: An invalid XML character (Unicode: 0xc) was found in the element content of the document.
org.xml.sax.SAXParseException: An invalid XML character (Unicode: 0xc) was found in the element content of the document.
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
    at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)