Ricoh Aficio SP C320DN Hardware Manual page 175

2. Hold the levers on both sides of the fusing unit and carefully pull it out.
Place the old fusing unit on a flat surface.
3. Prepare a new fusing unit.
4. While supporting both ends of the new fusing unit with your forefingers and pressing down
the levers with your thumbs, carefully push the unit fully in.
CBK168
CBK169
CBK170
Replacing the Maintenance Kit
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