To add the filter to the system once it has been defined,
use one of the following commands:
/usr/sbin/lpfilter -f filter-name -F filename
/usr/sbin/lpfilter -f filter-name -
The first command gets the filter definition from a file, and the second command gets the filter definition from the standard input. A filter-name can be any string you choose, with a maximum of 14 alphanumeric characters and underscores.
If you need to change a filter, just reenter one of the same commands. You need only provide information for those items that must be changed; items for which you don't specify new information will stay the same.