Macro Code for Duplex Printing

[Leftovercity]

Hi Everyone,



First time on here. I'm new to Macros but got one working that creates sequential numbering page to page. But now my issues is that the document I need it for is two pages and I need it to be printed two sided (Duplex). When I run the Macro it bypasses the printer setting window and prints two individual pages. Is there a Macro code I can add to run duplex printing?

Here's my current code:

Dim Message As String, Title As String, Default As String, NumCopies As Long
Dim Rng1 As Range

' Set prompt.
Message = "Enter the number of copies that you want to print"
' Set title.
Title = "Print"
' Set default.
Default = "1"

' Display message, title, and default value.
NumCopies = Val(InputBox(Message, Title, Default))
SerialNumber = System.PrivateProfileString("C:\Settings.Txt", _
"MacroSettings", "SerialNumber")

If SerialNumber = "" Then
  SerialNumber = 1
End If

Set Rng1 = ActiveDocument.Bookmarks("SerialNumber").Range
Counter = 0

While Counter < NumCopies
  Rng1.Delete
  Rng1.Text = Format(SerialNumber, "0000")
  ActiveDocument.PrintOut
  SerialNumber = SerialNumber + 1
  Counter = Counter + 1
Wend

'Save the next number back to the Settings.txt file ready for the next use.
System.PrivateProfileString("C:\Settings.txt", "MacroSettings", _
  "SerialNumber") = SerialNumber

'Recreate the bookmark ready for the next use.
With ActiveDocument.Bookmarks
  .Add Name:="SerialNumber", Range:=Rng1
End With

ActiveDocument.Save