crystal report hide border in print

When I am开发者_如何学Python trying to take print (using Print option of Crystal Report Viewer), it shows borders around Subreports. What should I do to hide the borders?

I'm not familiar with the CR Viewer, but when I create new subreports in the CR Developer, borders are added by default. Turn it off by right-click->format subreport->border and set all the Line Styles to none.