Checking Other Remaining Amounts
Overview
The messages will be displayed in the on-screen information display area if any of the following consumables run out or need replacing.
Waste toner box
Cyclone Box
Staples
Glue pellets
Humidifier tank water
Trimmer receiver
The display for the given material in the [Consumable and Scrap Indicators] display section will light up red and the text will turn yellow.
Reference
- For more details on relevant method for replenishing the materials, refer to Replenishing and Replacing Consumables.
in the upper-right of a page, it turns into 
and is registered as a bookmark.