How do I add a blank page automatically as a separator after every 15 pages 
when printing a document of 250 pages? 

Use a macro containing the following code to print the document:

Dim i As Long
Dim blank As Document
For i = 1 To 240 Step 15
    ActiveDocument.PrintOut Range:=wdPrintFromTo, From:=i, To:=i + 15
    Set blank = Documents.Add
    With blank
        .PrintOut
        .Close wdDoNotSaveChanges
    End With
Next i


-- 
Hope this helps,

Doug Robbins - Word MVP

Please reply only to the newsgroups unless you wish to obtain my services on
a paid professional basis.

"S N" <uandme72@yahoo.com> wrote in message 
news:erXfls7jKHA.5520@TK2MSFTNGP06.phx.gbl...
> How do I add a blank page automatically as a separator after every 15 
> pages when printing a document of 250 pages?
>