As above, previously installed remanufactured cartridges worked A OK and better than cartridges sourced from elsewhere.
Cannot comment on the last couple of cartridges: last November, when about to change cartridges, gave the seemingly empty cartridge a good shake and behold, printer back working. So, replacement still in cupboard. This most recent order was in anticipation of an empty black cartridge which is still working. Be careful about shaking a laser toner cartridge, did that once many years ago and really upset the boss and the clean up team. Micro powder everywhere.