Ricoh M2814062 fusing unit is a replacement printer assembly listed for the SP5300DN. It is identified as FUSING UNIT:EU/AP:302SB93060, so the part number and EU/AP designation identify the specific unit.
The assembly can be removed and replaced in the printer. Ricoh’s fusing-unit replacement instructions describe releasing its locking levers, removing the unit and fitting the replacement. This makes it a service part for maintaining the printer’s fusing assembly.
The listed compatible printer is the Ricoh SP5300DN.