My only concern is to avoid a sudden, catastrophic shutdown that could damage the hard drive(s) and save changes to files.
Sudden power loss is how all disk drives shutdown without damage. No disk drive (even in the 1960s) is warned, in advance, about a power off. Does not matter whether power loss is due to a normal shutdown or the loss of a nuclear power plant. To a disk drive, all power downs are sudden and without warning.
A UPS does data protection. Temporary and 'dirty' power so that unsaved data can be saved. A UPS does not protect or preserve hardware - its primary purpose. 'Dirty' power from a UPS is made irrelevant by superior protection already inside electronics. Motorized appliances may be at risk due to 'dirty' power.
Power off does not harm electronic hardware. A statement that agrees with what APC and Epson stated. Laser printer should not be powered via that type of UPS.
