[Koha] gather_print_notices.pl and page breaks

Dear Community, I have a couple customers who use gather_print_notices.pl to - gather up messages for patrons without email - format the messages as HTML - send them to the library email to be printed and snail-mailed This works OK, except the messages are printed as running text, without a page break between them. Has anyone figured out a solution to this? I have tried to start the contents of the messages with something like this: <p style="display: block; page-break-before: always;">...</p> but that does not seem to work. Anyone got a working solution? Best regards, Magnus Enger Libriotech