The attached document provides recommendations on how to safely turn a printer back on after a period of extended downtime. Follow the steps to avoid any damage to the printer and its components.
Sleep mode is recommended over fully shutting down a printer. This is because white ink should always be recirculating throughout the white IDS; if the printer is completely turned off, automatic white ink maintenance cannot take place, and printheads or other IDS components may be damaged. That said, if disconnecting the printer from the power socket is inevitable, follow these recommendations.