change variable username

handlers/main.yml

@@ -1,2 +1,10 @@
 ---
 # handlers file for cups
+
+
+- name: restart cups
+  service:
+    name: cups-browsed.service 
+    enabled: True
+    state: restarted
+  become: yes

tasks/main.yml

@@ -17,25 +17,27 @@
 
 - name: Add accounts to lpadmin group (CUPS admin)
   user:
-    name: "{{ username }}"
+    name: "{{ user.name }}"
     append: yes
     groups: "cups"
   become: yes
 
 - name: check printers
-  tags: cups
   command: lpstat -p Brother_DCP-L2530DW_series  
   register: printers
   ignore_errors: True
-  changed_when: False
+  changed_when: printers.failed==true
 
+- debug:
+    msg: "{{printers}}"
 - name: copy printers.conf
   copy:
     dest: /etc/cups/ # required. Remote absolute path where the file should be copied to. If I(src) is a directory, this must be a directory too. If I(dest) is a nonexistent path and if either I(dest) ends with "/" or I(src) is a directory, I(dest) is created. If I(src) and I(dest) are files, the parent directory of I(dest) isn't created: the task fails if it doesn't already exist.
     src: printers.conf # not required. Local path to a file to copy to the remote server; can be absolute or relative. If path is a directory, it is copied recursively. In this case, if path ends with "/", only inside contents of that directory are copied to destination. Otherwise, if it does not end with "/", the directory itself with all contents is copied. This behavior is similar to Rsync.
     group: cups # not required. Name of the group that should own the file/directory, as would be fed to I(chown).
   become: yes  
-  when: printers.changed == "true"
+  notify: restart cups
+  when: printers.changed == true
 
 - name: Enable and start CUPS service
   service: