Sharp MX-3610N User Manual page 101

Place the waste toner box
on a flat surface.
Place a sheet of paper such as
newspaper on the surface before placing
the waste toner box.
Do not point the holes down as used toner will spill out.
Keep waste toner boxes you have removed in a plastic bag (do not discard
them). Your service technician will collect them.
Install a new waste toner
box.
Insert the box from above at a slant. (In
the direction opposite to the direction you
removed it in.)
Push the waste toner box
into the machine.
Push the box in until it clicks into place.
Lock the waste toner box.
Move the waste toner box lock to the
lock position.
Close the front cover.