See the following topics below for some background information. As an alternative you can also exclude the known PJL / raw printing ports like 9100/tcp (please lookup your printer manual which ones the related printer is using) from your port list.
See the following topics below for some background information. As an alternative you can also exclude the known PJL / raw printing ports like 9100/tcp (please lookup your printer manual which ones the related printer is using) from your port list.