Node.js 如何在nodejs中打印pdf

我使用pdfkit和ipp库将PDF打印到网络打印机(Brother HL-L2360D series).

以下是代码

const ipp = require('ipp');
const concat = require('concat-stream');
const PDFDocument = require('pdfkit');

const doc = new PDFDocument({ margin: 0 });
doc.text('Testing Printing Functionality. Sent By Developer', 0, 780);

doc.pipe(concat(function (pdf) {
    const printer = ipp.Printer('http://printer.sandbox.com/ipp/print');
    const msg = {
        'operation-attributes-tag': {
            'requesting-user-name': 'William',
            'job-name': 'My Test Job',
            'document-format': 'application/octet-stream'
        },
        data: pdf
    };
    printer.execute('Print-Job', msg, function (err, res) {
        console.log({ err, res });
    });
}));
doc.end();

但它打印了一些随机字符

当我通过发送Get-Printer-Attributes操作判断打印机配置时.它返回以下受支持的有效文档列表.我看它没有application/pdf.出于这个原因，我将application/octet-stream作为document-format发送.

{
    "version": "2.0",
    "statusCode": "successful-ok",
    "id": 31208186,
    "operation-attributes-tag": {
        "attributes-charset": "utf-8",
        "attributes-natural-language": "en-us"
    },
    "printer-attributes-tag": {
        "copies-default": 1,
        "finishings-default": "none",
        "printer-info": "en\u001eBrother HL-L2360D series",
        "printer-make-and-model": "en\u001eBrother HL-L2360D series",
        "ipp-versions-supported": [
            "1.0",
            "1.1",
            "2.0"
        ],
        "operations-supported": [
            "Print-Job",
            "Validate-Job",
            "Create-Job",
            "Send-Document",
            "Cancel-Job",
            "Get-Job-Attributes",
            "Get-Jobs",
            "Get-Printer-Attributes",
            "Identify-Printer"
        ],
        "multiple-document-jobs-supported": false,
        "multiple-operation-time-out": 150,
        "natural-language-configured": "en",
        "charset-configured": "utf-8",
        "charset-supported": "utf-8",
        "document-format-supported": [
            "application/octet-stream",
            "image/urf",
            "image/pwg-raster"
        ],
        "document-format-default": "application/octet-stream",
        "printer-is-accepting-jobs": false,
        "queued-job-count": 1,
        "pdl-override-supported": "attempted",
        "printer-up-time": 14285,
        "compression-supported": "none",
        "color-supported": false,
        "landscape-orientation-requested-preferred": 5,
        "marker-colors": "en\u001e#000000",
        "marker-high-levels": 100,
        "marker-levels": 100,
        "marker-low-levels": 10,
        "marker-names": "en\u001eBK",
        "marker-types": "toner",
        "media-bottom-margin-supported": 432,
        "media-left-margin-supported": 432,
        "media-right-margin-supported": 432,
        "media-source-supported": [
            "auto",
            "manual",
            "tray-1"
        ],
        "media-top-margin-supported": 432,
        "media-type-supported": [
            "stationery",
            "stationery-lightweight",
            "stationery-heavyweight",
            "stationery-cover",
            "envelope",
            "envelope-heavyweight",
            "envelope-lightweight",
            "stationery-recycled",
            "labels",
            "stationery-bond"
        ]
    }
}

我不确定我做错了什么.有没有人能帮帮我？

我试着换了document-format元.已try 先创建作业(job)，然后再执行它.我也试过使用iip://printer.sandbox.com/ipp/print，问题仍然是一样的.