On this screen we are going to define, if you have not done so an address object for each one of the wired network printer’s IP address, this will let the SonicWall device know where your printer or printers are on the LAN network, Click on Add at the top,
On the dialog, type a friendly name you can identify latter on for the wired printer, select LAN for the Zone Assignment if your printer is connected to the default LAN network, in the field type Select host to indicate that you are defining a single IP address (the network printer IP), then enter the network printer IP address and click add to finish adding the network printer object.
Repeat the process for each wired network printer or printers you would like to enable wireless printing for.
Since I am adding 2 printers. grouping them will make things simpler