Certified Pre-Owned Machines

A certified pre-owned item is likely to have been used and either returned as used or returned as faulty. A product that is listed as refurbished will have undergone diagnostic testing, any faulty parts will have been replaced, everything will have received a thorough cleaning, and it will have been repackaged.
As an incentive to purchasing a refurbished item, the manufacturer or retailer will typically add an additional warranty. This is a huge benefit so you can have peace of mind should anything go wrong with the device. However, it is best to check the length and terms of the warranty as it will differ between retailers.
there are two different categories of refurbished devices: manufacturer refurbished and seller refurbished.