Lexmark XC4240
Note: Make sure that fax is configured. For more information, see Setting up the printer to fax.
From the control panel, navigate to:
Settings > Fax > Fax Setup > Speaker Settings
For non-touch-screen printer models, press to navigate through the settings.
Do the following:
Manually assign a specific paper size that is not available in the paper menu.
You can conveniently configure and schedule the energy‑saving feature of your printer from the home screen.