Duplex printing issues

Question

Hi all, run into a problem with duplex printing in oracle reports lately where data for seperate groups is ending up on the previous or next group's page. This is using 10g and a xerox high speed printer.
Basically if I have a report with groups a, b, and c. The output should be:
1st page - A1/A2
2nd page - A3/Blank
3rd page - B1/B2
4th page - C1/C2
5th page - C3/C4
Instead what we are getting is:
1st page - A1/A2
2nd page - A3/B1
3rd page - B2/C1
4th page - C2/C3
5th page - C4/BLANK
Is there any way to set a break or blank page between groups in oracle from the same query to seperate them for duplex printing? I've looked and a solution seems to be to add an empty boilerplate object in the header/body that checks the mod of the page number, and if odd, prints or displays to get a blank page, otherwise if even does nothing. Is there a better or "cleaner" solution to this?

Answer 1

So I've actually tried to do this and it doesn't seem to work. From Oracles FAQ's:
"I am printing statements on a double-sided stationary capable printer. To ensure that each new statement starts on a new physical piece of paper, I need to add a blank page if the previous statement had an odd number of page sides. How can I do this?
Place an invisible boilerplate line before the repeating frame that contains your data. Give it a Page Break before and anchor it to the repeating frame. Then write a format trigger that only prints the boilerplate object (and thus the page break) if it is an odd page number. "
I've tried adding a line, with page break before on, and anchoring it to my repeating frame with the following:
physicalpage number;
begin
     srw.get_page_num(physicalpage);
  IF MOD(physicalpage,2) = 0 THEN
          return(FALSE);
     ELSE
       return(TRUE);
     END IF;
end;, it either does nothing or gives an error saying horizontal line does not fit withing repeating group x.
Does anyone know how to properly seperate repeating groups from an oracle report when using duplex, or double sided printing?