we have a raw postscript printer (HP LJP M425dn) that CUPS (1.5.3-5+deb7u1) addresses by IPP with driver "Local Raw Printer (grayscale)". CUPS's own "print test page" produces a sheet with monospaced text starting with "#PDF-BANNER", but thankfully i can print from various applications.
in the GTK (3.4.2-7) print dialog that my firefox, GIMP, and evince use, asking for multiple pages per sheet does nothing. meanwhile, the same in the custom print dialog of libreoffice (3.5.4+dfsg2-0+deb7u2) DOES get the desired effect.
what could be wrong?