I have generated ActiveReports pdf file with paper size 240 mm*305 mm[Bigger than A4]. We are printing the same report several times on continuous rolling sheet. The first page is printing correctly but from the second page, printable data is not in the same position. It is slightly moving upwards as shown in the image.
When a PDF is generated the page size is final and will not be repaginated when it is printed to the printer. Based on your description, the PDF is a different size from the printer paper-size. Once the PDF file is generated, all the printing is handled by your PDF application and the printer, ActiveReports code is no longer involved.