So 2 different solutions! :)

PS and use this one for big printing (depending of your Video card)
Copy the screen at big resolution inside the clipboard

script:var v = moi.ui.getActiveViewport(); if ( v != null ) { moi.view.lineWidth = 4; v.renderToClipboard( 2560, 2560 ); moi.view.lineWidth = 1; }