Removing Printers the easy way
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An easy way to wipe all printers from a machine was discussed in the irc chatroom. This is courtesy of blood, a regular in the room.
launchctl stop org.cups.cupsd
mv /etc/cups/cupsd.conf /etc/cups/cupsd.conf.backup
cp /etc/cups/cupsd.conf.default /etc/cups/cupsd.conf
mv /etc/cups/printers.conf /etc/cups/printers.conf.backup
This will: stop the printer service (0), copy the settings for backup (1), replace the settings with the default (2), backup and remove the printers (3). If you need to restore them you would just remove the .backup from the printers and cupsd files.
This could be easily packaged or sent with ARD.
Gmarnin also added this for deleting printers based on their names.
lpadmin -x printername1 printername2 printername3