The BBC has a piece about HP printers rejecting non-HP cartridges.
Large numbers of HP printer owners found their printers stopped recognising unofficial printer ink cartridges on 13 September.
Dutch printer ink vendor 123inkt said it had received more than 1,000 complaints in one day.
HP said that during its last firmware update, settings had been changed so HP printers would communicate with only HP-chipped cartridges.
It also said some devices already had the functionality built-in.
We have a Canon printer and stick to Canon ink cartridges after fatal problems with our previous Epson printer choking on unofficial cartridges. We do very little printing, but over the past year or so I'm sure the lifetime of cartridges has reduced. It is easy enough to check this because we buy them through Amazon which tells us when we last bought the same item. I keep no records, but from memory cartridge life seems to have dropped from about a year to about six months.
It's not a new issue of course. Back in 2013 the Guardian was telling us about printer manufacturers reducing the amount of ink per cartridge. It could be worth buying a cheap printer with the intention of throwing it away when a cartridge runs out, but no doubt they will have that sorted by making special short lifetime cartridges for new printers. Cartels eh? Don't we just love them?