diff --git a/nixbld-etc-nixos/configuration.nix b/nixbld-etc-nixos/configuration.nix
index dc05151..e3727eb 100644
--- a/nixbld-etc-nixos/configuration.nix
+++ b/nixbld-etc-nixos/configuration.nix
@@ -330,6 +330,12 @@ in
   hardware.sane.enable = true;
   hardware.sane.extraBackends = [ pkgs.hplipWithPlugin ];
 
+  services.udev.extraRules =
+    ''
+    # label printer
+    SUBSYSTEM=="usb", ATTRS{idVendor}=="07cf", ATTRS{idProduct}=="4204", MODE="0660", GROUP="lp"
+    '';
+
   users.extraUsers.root = {
     openssh.authorizedKeys.keys = [
       "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBNdIiLvP2hmDUFyyE0oLOIXrjrMdWWpBV9/gPR5m4AiARx4JkufIDZzmptdYQ5FhJORJ4lluPqp7dAmahoSwg4lv9Di0iNQpHMJvNGZLHYKM1H1FWCCFIEDJ8bD4SVfrDg=="