Here is a list of steps you can take to replace the waste ink tank on your printer:

1. Turn off the printer: Unplug your printer from its power source and wait until the power is completely off before proceeding.
2. Open up the top/back cover: Various models of printers may differ in how you open the top/back cover. Refer to your printer’s manual for instructions on how to do this.
3. Locate the waste ink tank: Waste ink tanks can be found in the upper right hand corner of your printer. Look for a small plastic container situated next to a rectangular rubber pad.
4. Disconnect the old tank: Carefully slide the old tank away from the printer until it is fully disconnected.
5. Install the new tank: Connect the new tank to the area where the old tank was removed.
6. Check connections: Carefully inspect the connections and ensure everything looks secure before closing the top/back cover.
7. Turn on the printer and test: Once the cover is securely shut, plug your printer back in and turn it on. Try running some test pages to ensure the waste ink tank is installed correctly.