HP LaserJet Pro 400 MFP M425 - Manual (Page 156)

Replacement instructions
Change the toner cartridge
When a toner cartridge approaches the end of useful life, you are prompted to order a replacement. You can
continue printing with the current cartridge until redistributing the toner no longer yields acceptable print
quality.
1. Open the toner cartridge door, and then remove
the toner cartridge.
2. Remove the new toner cartridge from the bag.
Place the used toner cartridge in the bag for
recycling.
140 Chapter 7 Manage and maintain ENWW