He is a specialized type of hoarder. Its rather sad, its a mental illness that is very difficult to deal with.
I don't think hoarding is the issue in this case. It appears to be a poor business plan. He likely couldn't afford to dispose of the "INK JET" printers after trying to resell the used cartridges he removed from the printers..
I don’t think he was a hoarder, I read an article that this was some sort of business venture that went bad. Something to do with China not taking in plastics, and being stuck with the printers. I believe the printers were defective/returns anyways even though they were in boxes. According to the article he was reselling the ink cartridges out of the box but couldn’t recycle the printers, he ended up losing the warehouse he had his business and brought all the printers to his house.