表格转PDf后打印部分边框显示不全如何处理？

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前端用的anugular 版本
"@grapecity/spread-excelio": "^12.2.5",
"@grapecity/spread-sheets": "^12.2.5",
"@grapecity/spread-sheets-angular": "^12.2.5",
"@grapecity/spread-sheets-pdf": "^12.2.5",
"@grapecity/spread-sheets-print": "^12.2.5",

打印设置如下：
var printInfo = sheet.printInfo();
   printInfo.paperSize(new GC.Spread.Sheets.Print.PaperSize(GC.Spread.Sheets.Print.PaperKind.a4));
   printInfo.margin({ top: 0, bottom: 0, left: 0, right: 0, header: 0, footer: 0 });
   printInfo.showColumnHeader(GC.Spread.Sheets.Print.PrintVisibilityType.hide);//获取或设置是否打印列标题。
   printInfo.showRowHeader(GC.Spread.Sheets.Print.PrintVisibilityType.hide);

   printInfo.showBorder(false);
   //是否打印网格线（默认打印）
   printInfo.showGridLine(false);
   printInfo.zoomFactor(0.90);
TIM截图20190926094113.png