Some help, please, to understand

[peter]

If I use lpadmin I can add printers to the system
And they appear in the http://server:631  view

However, if the server is re-booted, these printers are lost.
How do I add them to /etc/cups/printers.conf ?
Should I adding them ?
I need to have them automatically re-appear on a re-boot.

Must it be manual ie via an editor ?

typically these printers are in 1 of 3 groups :

a)  Dot matrix - ie text printers

b) Some HP laserjet replacements for the text printers

c) A large set of remote printers

the lpadmin command for these is

lpadmin -p packforms -v lpd://remotewindows/xpackforms -E


Also, if I add a printer via the http:// interface, /etc/cups/printers.conf
is not updated, even though I have to log in as root to add a printer