About Waste Toner Box
When the Waste Toner Box is full, a message appears to prompt you to replace it (at replacement by user). Tap [Start Guidance], then follow the displayed guidance to take an action.
Reference
When the Waste Toner Box is full, a message appears to prompt you to replace it (at replacement by user). Tap [Start Guidance], then follow the displayed guidance to take an action.
If you click or tap 
in the upper-right of a page, it turns into 
and is registered as a bookmark.