IBM S544-5343-03 - Manual (Page 136)

9. Slide the cartridge into the printer guide channels. To make sure the toner
cartridge is secure, gently press both ends of the cartridge until the cartridge stops.
10. Close the front cover.
11. Reset the toner counter. See “Machine Information Menu” on page 109.
12. If you removed the optional envelope feeder, reinstall it. See “Installing the
Envelope Feeder” on page 174 for instructions.
116 Network Printer 17: User’s Guide