Printing double sided on HP Laserjet 1320 from VBA

[Richard in Redditch]

Hello.

I use a LaserJet 1320 (OK, its old, but it is robust and works), and I have to print quite long spreadsheets at regular intervals. Currently I use "Activewindow.selectedsheets.printout From:=1, to:=Printpages, copies:=copyno, Collate:=true, Ignoreprintareas:=false".

Is there a way please to instruct the printer to print double sided with another argument, or have I missed something?

Many thanks

Richard