post_install() {cat<< EOFNOTE----# If you want to use this driver with sane:# echo "hpaio" >> /etc/sane.d/dll.confEOF}
post_upgrade() {if["`vercmp$23.12.4-2`"-lt0];then# important upgrade noticeecho"> Please remove your printer in cups, then add it"echo"> back and reconfigure it to make it work again!"fi}