Lexmark XC9445
Open the front door.
Remove the used waste toner transfer unit.
Note: To avoid spilling the toner, place the unit in an upright position.
Unpack the new waste toner transfer unit.
Insert the new waste toner transfer unit until it clicks into place, and then lock it.
Close the front door.
Learn how to replace the waste toner bottle of your printer. Changing the waste toner bottle regularly prevents toner spillage.
Here are the steps to replace the transfer module cleaner, the device that keeps the transfer module clean.