diff --git a/ansible/inventory.ini b/ansible/inventory.ini
index c8696ab..718c443 100644
--- a/ansible/inventory.ini
+++ b/ansible/inventory.ini
@@ -1,8 +1,9 @@
 [rdp_clients]
-thin-client-01 ansible_host=192.168.178.241
+#thin-client-01 ansible_host=192.168.178.241
 #thin-client-02 ansible_host=192.168.0.29
 #thin-client-03 ansible_host=192.168.0.23
-#thin-client-04 ansible host=192.168.0.
+#thin-client-04 ansible_host=192.168.0.32
+thin-client-05 ansible_host=192.168.0.37
 [rdp_clients:vars]
 ansible_user=root
 #ansible_ssh_private_key_file=~/.ssh/id_rsa
diff --git a/ansible/playbook.yml b/ansible/playbook.yml
index c86bfde..579de3f 100644
--- a/ansible/playbook.yml
+++ b/ansible/playbook.yml
@@ -105,7 +105,7 @@
         name: "{{ thin_client_user }}"
         password: "{{ thin_client_password }}"
         shell: /bin/bash
-        groups: audio,video,bluetooth,plugdev,netdev,sudo
+        groups: audio,video,bluetooth,plugdev,netdev,sudo,lpadmin
         append: yes
 
     - name: Allow rdpuser to use sudo for package installation
@@ -564,6 +564,54 @@
         autoremove: yes
       ignore_errors: yes
 
+    # === PRINTER SUPPORT (CUPS) ===
+    - name: Enable and start CUPS service
+      systemd:
+        name: cups
+        enabled: yes
+        state: started
+      ignore_errors: yes
+
+    - name: Create PolicyKit rules directory
+      file:
+        path: /etc/polkit-1/rules.d
+        state: directory
+        mode: '0755'
+
+    - name: Create PolicyKit rule for CUPS (lpadmin group)
+      copy:
+        dest: /etc/polkit-1/rules.d/49-allow-lpadmin.rules
+        mode: '0644'
+        content: |
+          // Allow lpadmin group to manage printers without authentication
+          polkit.addRule(function(action, subject) {
+              if ((action.id == "org.opensuse.cupspkhelper.mechanism.all-edit" ||
+                   action.id.indexOf("org.opensuse.cupspkhelper.mechanism.") == 0) &&
+                  subject.isInGroup("lpadmin")) {
+                  return polkit.Result.YES;
+              }
+          });
+
+    - name: Create directory for legacy PolicyKit configuration
+      file:
+        path: /etc/polkit-1/localauthority/50-local.d
+        state: directory
+        mode: '0755'
+      ignore_errors: yes
+
+    - name: Create legacy PolicyKit configuration for CUPS
+      copy:
+        dest: /etc/polkit-1/localauthority/50-local.d/49-allow-lpadmin-cups.pkla
+        mode: '0644'
+        content: |
+          [Allow lpadmin group to manage printers]
+          Identity=unix-group:lpadmin
+          Action=org.opensuse.cupspkhelper.mechanism.*
+          ResultAny=yes
+          ResultInactive=yes
+          ResultActive=yes
+      ignore_errors: yes
+
     - name: Disable unnecessary services
       systemd:
         name: "{{ item }}"
@@ -571,7 +619,6 @@
         state: stopped
       loop:
         - ModemManager
-        - cups
       ignore_errors: yes
 
     - name: Final message
diff --git a/files/branding/boot-logo.png b/files/branding/boot-logo.png
index 2fea727..f41644a 100644
Binary files a/files/branding/boot-logo.png and b/files/branding/boot-logo.png differ
diff --git a/files/branding/generate-grub-background.py b/files/branding/generate-grub-background.py
new file mode 100644
index 0000000..ad30f54
--- /dev/null
+++ b/files/branding/generate-grub-background.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+"""
+GRUB Background Generator
+Einfaches Hintergrundbild für GRUB Bootloader
+"""
+
+from PIL import Image, ImageDraw, ImageFont
+import os
+
+# Farben
+BG_BLACK = (12, 12, 15)
+TEXT_WHITE = (230, 230, 230)
+TEXT_GRAY = (120, 120, 120)
+ACCENT_CYAN = (100, 200, 255)
+
+# Bildgröße (GRUB Standard)
+WIDTH = 1920
+HEIGHT = 1080
+
+# Erstelle Bild
+img = Image.new('RGB', (WIDTH, HEIGHT), BG_BLACK)
+draw = ImageDraw.Draw(img)
+
+# Versuche Font zu laden
+try:
+    font_paths = [
+        '/usr/share/fonts/truetype/dejavu/DejaVuSansMono-Bold.ttf',
+        '/usr/share/fonts/truetype/liberation/LiberationMono-Bold.ttf',
+    ]
+
+    font_large = None
+    font_small = None
+
+    for font_path in font_paths:
+        if os.path.exists(font_path):
+            font_large = ImageFont.truetype(font_path, 72)
+            font_small = ImageFont.truetype(font_path, 36)
+            break
+
+    if not font_large:
+        raise Exception("No font found")
+
+except:
+    print("Font nicht gefunden, nutze Default")
+    font_large = ImageFont.load_default()
+    font_small = ImageFont.load_default()
+
+# Zentrierter Text
+main_text = "RDP THIN CLIENT"
+bbox = draw.textbbox((0, 0), main_text, font=font_large)
+text_width = bbox[2] - bbox[0]
+text_x = (WIDTH - text_width) // 2
+text_y = (HEIGHT // 2) - 100
+
+draw.text((text_x, text_y), main_text, font=font_large, fill=TEXT_WHITE)
+
+# Subtext
+sub_text = "HackerSoft · Hacker-Net Telekommunikation"
+bbox = draw.textbbox((0, 0), sub_text, font=font_small)
+text_width = bbox[2] - bbox[0]
+sub_x = (WIDTH - text_width) // 2
+sub_y = text_y + 120
+
+draw.text((sub_x, sub_y), sub_text, font=font_small, fill=ACCENT_CYAN)
+
+# Speichern
+output_path = os.path.join(os.path.dirname(__file__), 'grub-background.png')
+img.save(output_path, 'PNG')
+print(f"GRUB Background erstellt: {output_path}")
+print(f"Größe: {WIDTH}x{HEIGHT}")
diff --git a/files/branding/grub-background.png b/files/branding/grub-background.png
index 9ff599f..f41644a 100644
Binary files a/files/branding/grub-background.png and b/files/branding/grub-background.png differ