Open the front covers.
Holding the handle, pull out the waste toner bottle.
Affix the seal to its opening.
The seal is supplied with the new waste toner bottle.
Put the used waste toner bottle into the bag and keep it in the box.
Attach the new waste toner bottle.
Close the front covers.
Reset the counter for replaceable parts.
Do not turn the machine on until you have read how to do so.