This is a VERY unfortunate ruling. Not mentioned is that LexMark sells 2 versions of its cartridge, one with restrictions on refilling, which is cheaper; and a second that comes WITHOUT such restrictions, which is more expensive. This ruling ensures that they will only sell the 2nd going forward, and ink cartridges will be more expensive for everyone.
For actual facts, i recommend this site: https://patentlyo.com/patent/2015/04/lexmark-impression-facts.html . In relevant part:
Lexmark offers end-user customers a choice when they purchase these replacement cartridges: a “Regular Cartridge” sold at full price without any use limitations, or a “Return Program” cartridge sold at a discount in exchange for the purchaser’s agreement to use the cartridge only once.