420 Maintenance
7 Repeat step 6 also on the other three holes. One time insertion is enough for each hole.
8 Return the cleaning rod to its original location.
9 Reinsert the removed waste toner box.
NOTE:
• If the waste toner box does not fit into place properly, make sure that the belt unit is fully inserted.
10 Turn the waste toner box lock lever 90-degrees clockwise to lock the waste toner box.