Main drive assembly w. fuser drive assembly HP Color LaserJet CP2025 CM2320 series. This is a refurbished unit. Common failure part; replace this assembly to solve rumbling noises and random 59.C0 or 59.F0 errors. Replacement of this part is a very large job and should be performed by experienced technicians. This repair is not explained in the Service Manual. If you are not an experienced technician, we recommend you replace the printer rather than attempting to install this part.