ric533wu.dll is a RIC533W.DLL
belonging to RICOH Aficio AP600N PCL 5e
from RICOH COMPANY, LTD
Non-system processes like ric533wu.dll originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.