When I test printers, I plug them in and let them go through the self test. That is the extent of the test.

I generally sell printers, faxes, and scanners as untested because I don't have the software or ink to properly test the items. I sell them as non working but they almost always perform fine with the correct equipment.  I will note any noticeable flaws.

I purchased this item from a local government facility.  

Item: HP Laserjet Pro 400 Color M451dn.  This item powers on and goes through self test.  The display reads "ready".  See photos for physical condition.    

Inventory Location: 19H-NACLE-P 

Inventory ID: P5287  

Rack: 51.9