public string PrintOutPackage(string Consignee, string ContractCode,string ConsigneeAddress, int count, int cur, string printName, int type=1)
        {
            if (string.IsNullOrWhiteSpace(printName))
            {
                return "没有选择打印机";
            }

            using (LocalReport report = new LocalReport())
            {
                report.ReportPath = System.Windows.Forms.Application.StartupPath + "/Content/OutPackage.rdlc";
                report.DataSources.Clear();

                var printModel = new OutPackagePrintModel() { Consignee = Consignee, ContractCode = ContractCode, ConsigneeAddress = ConsigneeAddress, PackageCount = count, CurPackageCount = cur, ConsigneeFontSize = Consignee.Length <= 3 ? "28pt" : Consignee.Length <= 12 ? "16pt" : "12px" };

                var list = new List<OutPackagePrintModel>();
                list.Add(printModel);
                ReportDataSource ds = new ReportDataSource("OutPackage", list);//绑定数据源
                report.DataSources.Add(ds);
                report.Refresh();
                string deviceInfo =
                    "<DeviceInfo>" +
                    "  <OutputFormat>EMF</OutputFormat>" +
                     "  <PageWidth>8cm</PageWidth>" +
                     "  <PageHeight>5cm</PageHeight>" +
                      "<PrintDpiX>300</PrintDpiX>" +
                      "<PrintDpiY>300</PrintDpiY>" +
                     "  <MarginTop>0pt</MarginTop>" +
                    "  <MarginLeft>0pt</MarginLeft>" +
                    "  <MarginRight>0pt</MarginRight>" +
                    "  <MarginBottom>0pt</MarginBottom>" +
                    "</DeviceInfo>";
                Warning[] warnings;
                m_streams = new List<Stream>();
                //将报表的内容按照deviceInfo指定的格式输出到CreateStream函数提供的Stream中。
                report.Render("Image", deviceInfo, CreateStream, out warnings);
            }

            foreach (Stream stream in m_streams)
            {
                stream.Position = 0;
            }

            Image pageImage = Image.FromStream(m_streams[0]);

            if (type == 2)
            {
                //测试时保存图片
                pageImage.Save(@"d:\" + $"{cur}_{count}" + ".emf", ImageFormat.Tiff);
                return "已保存图片";
            }

            //正式时调用打印机打印
            var r = Printer.PrintImageData(pageImage, printName, "0", "0");
            if (!r.IsSuccess)
                return r.Message;
            return "";
        }

        private Stream CreateStream(string name, string fileNameExtension,
          Encoding encoding, string mimeType, bool willSeek)
        {
            //如果需要将报表输出的数据保存为文件，请使用FileStream对象。
            Stream stream = new MemoryStream();
            BillPrintSteam = stream;
            m_streams.Add(stream);
            return stream;
        }

public static PrintModel PrintImageData(Image pageImage,string PrinterName,string PaperSizeWidth,string PaperSizeHeight)
        {
            bool PrintIsSuccess=false;
            Exception PrintException=null;
            //声明PrintDocument对象用于数据的打印
            PrintDocument printDoc = new PrintDocument();
            printDoc.DefaultPageSettings.Margins = new Margins(0, 0, 0, 0);
            //指定需要使用的打印机的名称，使用空字符串""来指定默认打印机
            //传入打印机名称 则使用传入的，否则使用当前服务账户（登录为）的默认打印机
            if (!string.IsNullOrWhiteSpace(PrinterName))
            {
                printDoc.PrinterSettings.PrinterName = PrinterName;
            }
            //判断指定的打印机是否可用
            if (!printDoc.PrinterSettings.IsValid)
            {
                return PrintModel.CreateFailedResult("未能找到默认的打印机！");
            }

            if (!string.IsNullOrWhiteSpace(PaperSizeWidth) && PaperSizeWidth != "0" && !string.IsNullOrWhiteSpace(PaperSizeHeight) && PaperSizeHeight != "0")
            {
                var ps = new PaperSize("Your Paper Name", int.Parse(PaperSizeWidth), int.Parse(PaperSizeHeight)) { RawKind = 120 };//自定义纸张
                printDoc.DefaultPageSettings.PaperSize = ps;
            }
            printDoc.PrintPage += new PrintPageEventHandler(delegate (object sender, PrintPageEventArgs ev)
            {
                try
                {
                    ev.Graphics.PageUnit = GraphicsUnit.Document;
                    //ev.Graphics.CompositingQuality = CompositingQuality.HighQuality;
                    //ev.Graphics.PageScale = 1;
                    if (pageImage == null) return;
                    // Adjust rectangular area with printer margins.
                    Rectangle adjustedRect = new Rectangle(
                        ev.PageBounds.Left - (int)ev.PageSettings.HardMarginX,
                        ev.PageBounds.Top - (int)ev.PageSettings.HardMarginY,
                        ev.PageBounds.Width,
                        ev.PageBounds.Height);

                    Rectangle srcRect = new Rectangle(0, 0, pageImage.Width, pageImage.Height);
                    // Draw a white background for the report
                    //ev.Graphics.FillRectangle(Brushes.White, adjustedRect);
                    // Draw the report content
                    ev.Graphics.DrawImage(pageImage, srcRect);//, srcRect, GraphicsUnit.Pixel);
                    ev.HasMorePages = false;
                }
                catch (Exception ex)
                {
                    PrintException = ex;
                    PrintIsSuccess = false;
                }
            });

            try
            {
                if (pageImage == null)
                {
                    PrintIsSuccess = false;
                }
                else
                {
                    printDoc.Print();
                    PrintIsSuccess = true;
                }
            }
            catch (Exception ex)
            {
                PrintException = ex;
                PrintIsSuccess = false;
            }

            return PrintModel.Create(PrintIsSuccess, PrintIsSuccess ? "Print Success！" : "Print Fail！", PrintException);
        }

public static List<PrinterModel> GetPrinterList()
        {
            PrinterSettings ps = new PrinterSettings();
            PrinterSettings.StringCollection listPrint = PrinterSettings.InstalledPrinters;
            List<PrinterModel> pList = new List<PrinterModel>();
            for (int i = 0; i < listPrint.Count; i++)
            {
                PrinterModel pm = new PrinterModel();
                ps.PrinterName = listPrint[i];
                pm.PrinterName = ps.PrinterName;
                pm.IsDefaultPrinter = ps.IsDefaultPrinter;
                pm.OrderBy = pm.IsDefaultPrinter ? -1 : i;
                pList.Add(pm);
            }
            return pList.OrderBy(x => x.OrderBy).ToList();
        }

<services>
      <service behaviorConfiguration="EnableMetadataBehaviors" name="Shangpin.Logistic.WindowsService.ClientPrintService.ServiceLibrary.PrintService">
        <endpoint address="" binding="webHttpBinding" behaviorConfiguration="WebScriptBehavior" bindingConfiguration="HttpJsonpBinding" contract="Shangpin.Logistic.WindowsService.ClientPrintService.ServiceLibrary.IPrintService" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:41943/PrintService" />
          </baseAddresses>
        </host>
      </service>

$.ajax({
    url: "http://localhost:41943/PrintService/Print?jsoncallback=?",
    dataType: 'jsonp',
    data: { url: imageUrl, printerName: $("#PrinterList").find("option:selected").val(), paperSizeWidth: paperSizeWidth, paperSizeHeight: paperSizeHeight },
    success: function (data) {
        if (!data.IsSuccess) {
            LG.showError("明细编号" + printArr[i] + "打印失败：" + data.Message, function () {
                JudgePrintAgain(printArr, i, url, paperSizeWidth, paperSizeHeight);//循环打印
            });
        } else {
            JudgePrintAgain(printArr, i, url, paperSizeWidth, paperSizeHeight);
        }
    },
    error: function (result) {
        LG.tip('发现系统错误 <br />错误码：' + result.status);
    }
});