How to configure my printers

What is it?

Local Network Access (LNA) is a Chrome feature that allows your browser to communicate directly with your local network. It means you can make your browser communicate with your devices without the need for importing certificates.

Be aware that it works only on chromium based browser: Google chrome, Microsoft Edge, Brave, Opera, Arc and others

We duly advise you to use Chrome or Brave browser.
iOS devices (iPad, iPhones) are not compatible yet.

How to configure my devices properly:

Environment check

My browser is chromium based (Chrome, Edge, Brave, etc.)
My browser is above version 142
I have access to my router configuration (To fix device IP addresses)
I use an Epson printer (Check supported printers in Odoo documentation)
My printer can be connected through ethernet cables (recommended)

ePOS printers (Epson) configuration

Connect printer to internet (Ethernet cable recommended)
Printer's local IP address is printerd
Access printer configuration panel by puttin this URL in your search bar:

(Replace [printer_ip] with the printer IP address)

http://[printer_ip]/cgi-bin/epos/service.cgi?devid=local_printer

Update the printer firmware

The password is located on the back of the printer (remove covers).

Check printer reachability:

Access the below URL but replace [printer_ip] with your current Pritner IP address

http://[printer_ip]/cgi-bin/epos/service.cgi?devid=local_printer

If this endpoint does not returan a 404 error and displays a blank page, everything is ready.

SSL/TLS > Basic

Disable "Redirect HTTP to HTTPS"

Keep TLS settings enabled, otherwise the printer will not work with HTTPS.

ePoS Printer Service

Check if ePOS-print is enabled ePOS print enabled

Secure printing

If you have the secure printing setting, disable it

Now your printer is properly configured to work with LNA

Enable LNA on your database

If your database is version 19.1 or above , you can skip the system parameter section.

Before 19.1:

Add system parameter point_of_sale.use_lna with a value of 1 .

After 19.1:

Enable the “Use Local Network Access” checkbox directly on the printer configuration.

The printers are properly configured and the LNA is activated.

Point of sale configuration:

Link your printers to your POS (ePOS)
Open your POS and try to print a ticket
The message will appear from the browser. Allow access Browser LNA Prompt

If the permission is denied, refreshing the PoS will show this notification:

If the system parameter is set, but the browser doesn't support LNA, the PoS will show this notification:

If everything is correct, the Local Network Access status icon will turn green: