"black fax" meaning in English

{
  "forms": [
    {
      "form": "black faxes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "black fax (plural black faxes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2016, Jarice Hanson Ph.D., The Social Media Revolution: An Economic Encyclopedia of Friending",
          "text": "They also pranked the Church of Scientology members by sending hundreds of pizzas to the headquarters in Europe, and some sent black faxes (i.e., black sheets of paper sent to a fax machine in an endless loop to drain the ink and damage the machine) to the Los Angeles headquarters.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A prank fax transmission whose pages are entirely filled with a uniform black tone, so as to waste the ink of the recipient."
      ],
      "id": "en-black_fax-en-noun--M-BtqhH",
      "links": [
        [
          "prank",
          "prank"
        ],
        [
          "fax",
          "fax"
        ],
        [
          "transmission",
          "transmission"
        ],
        [
          "page",
          "page"
        ],
        [
          "ink",
          "ink"
        ],
        [
          "recipient",
          "recipient"
        ]
      ],
      "wikipedia": [
        "black fax"
      ]
    }
  ],
  "word": "black fax"
}

{
  "forms": [
    {
      "form": "black faxes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "black fax (plural black faxes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2016, Jarice Hanson Ph.D., The Social Media Revolution: An Economic Encyclopedia of Friending",
          "text": "They also pranked the Church of Scientology members by sending hundreds of pizzas to the headquarters in Europe, and some sent black faxes (i.e., black sheets of paper sent to a fax machine in an endless loop to drain the ink and damage the machine) to the Los Angeles headquarters.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A prank fax transmission whose pages are entirely filled with a uniform black tone, so as to waste the ink of the recipient."
      ],
      "links": [
        [
          "prank",
          "prank"
        ],
        [
          "fax",
          "fax"
        ],
        [
          "transmission",
          "transmission"
        ],
        [
          "page",
          "page"
        ],
        [
          "ink",
          "ink"
        ],
        [
          "recipient",
          "recipient"
        ]
      ],
      "wikipedia": [
        "black fax"
      ]
    }
  ],
  "word": "black fax"
}