IPP_ATTRIBUTE_CHARSET, IPP_AUTHTYPE, IPP_AUTHTYPE_BASIC, IPP_AUTHTYPE_DIGEST, IPP_AUTHTYPE_NONE, IPP_COPIES, IPP_DOCUMENT_FORMAT, IPP_DOCUMENT_FORMAT_OCTETSTREAM, IPP_DOCUMENT_FORMAT_PDF, IPP_DOCUMENT_FORMAT_PLAINTEXT, IPP_DOCUMENT_FORMAT_POSTSCRIPT, IPP_ENCTYPE, IPP_ENCTYPE_NONE, IPP_ENCTYPE_SSL, IPP_HOST, IPP_JOB_NAME, IPP_JOB_REQUESTING_USERNAME, IPP_MEDIA, IPP_MEDIA_A3, IPP_MEDIA_A4, IPP_MEDIA_A5, IPP_MEDIA_B4, IPP_MEDIA_B5, IPP_MEDIA_LEGAL, IPP_MEDIA_LETTER, IPP_MEDIA_TRAY1, IPP_MEDIA_TRAY2, IPP_MEDIA_TRAY3, IPP_NATURAL_LANGUAGE, IPP_ORIENTATIONS, IPP_ORIENTATIONS_LANDSCAPE, IPP_ORIENTATIONS_PORTRAIT, IPP_PAGE_RANGES, IPP_PASSWORD, IPP_PHONE_NUMBER, IPP_PORT, IPP_PRINTER_HTTP_URI, IPP_PRINTER_NAME, IPP_PRINTER_URI, IPP_PROXY_AUTHTYPE, IPP_PROXY_HOST, IPP_PROXY_PASSWORD, IPP_PROXY_PORT, IPP_PROXY_USERNAME, IPP_REQUEST, IPP_RESPONSE, IPP_RESPONSE_CHECK_INTERVAL, IPP_SIDES, IPP_SIDES_DUPLEX, IPP_SIDES_ONE_SIDED, IPP_SIDES_TUMBLE, IPP_SIDES_TWO_SIDED_LONG_EDGE, IPP_SIDES_TWO_SIDED_SHORT_EDGE, IPP_SSL_LIBRARY, IPP_SSL_LIBRARY_JSSE, IPP_SSL_LIBRARY_ORACLE, IPP_TIMEOUT, IPP_URL_CHARACTER_ENCODING, IPP_USE_CHUNKED_BODY, IPP_USE_FULL_URL, IPP_USERNAME |