May 18, 2021
diff --git a/src/config/print/index.md b/src/config/print/index.md
 ```
 # /usr/lib/cups/backend/usb
 ```

 ### Wireless printer detected but unable to print

 Even if CUPS can detect networked printers with:

 ```
 # lpinfo -v
 ```

 you may still end up with an "Unable to locate printer" error when trying to
 print. The solution is to enable Avahi's .local hostname resolution.

 Avahi provides local hostname resolution using a `hostname.local` naming scheme.
 To enable it, install `nss-mdns` and start (or restart) `avahi-daemon`. For more
 information on how to resolve host names that don't end in .local click
 [here](https://github.com/lathiat/nss-mdns/blob/master/README.md#libraries).

 Then, edit the file:

 ```
 # /etc/nsswitch.conf
 ```

 and change the `hosts` line to:

 ```
 hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4
 ```

 Alternatively, when manually adding a printer with the CUPS web interface,
 specify the printers IP address and printer port number. For example:

 ```
 ipps://<printer_IP_address>:<port>/
 ```
Original file line number	Diff line number	Diff line change
Expand Up		@@ -99,3 +99,38 @@ The device URI can be found manually by running:
		```
		# /usr/lib/cups/backend/usb
		```

		### Wireless printer detected but unable to print

		Even if CUPS can detect networked printers with:

		```
		# lpinfo -v
		```

		you may still end up with an "Unable to locate printer" error when trying to
		print. The solution is to enable Avahi's .local hostname resolution.

		Avahi provides local hostname resolution using a `hostname.local` naming scheme.
		To enable it, install `nss-mdns` and start (or restart) `avahi-daemon`. For more
		information on how to resolve host names that don't end in .local click
		[here](https://github.com/lathiat/nss-mdns/blob/master/README.md#libraries).

		Then, edit the file:

		```
		# /etc/nsswitch.conf
		```

		and change the `hosts` line to:

		```
		hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4
		```

		Alternatively, when manually adding a printer with the CUPS web interface,
		specify the printers IP address and printer port number. For example:

		```
		ipps://<printer_IP_address>:<port>/
		```