The only way I could see this providing value is for larger multi-function printers that offices use - I don't see this having any benefit in the home/small office market - just seems like they're trying to ride the wave of Canon(Epson?)'s refillable inkjet tanks.
Toner is pretty toxic (fine microplastics that are easily aerosolized - they go right through a lot of vacuum filters!!!) so I could see them marketing it as "don't touch dirty disgusting toner cartridges anymore! You don't even have to _SEE_ the toner!"
This could probably also make it a LOT easier for third parties to make HP toner refills, unless HP's done something like trademark/copyright/patent the "toner delivery mechanism" to stop third parties from copying it.
Toner is pretty toxic (fine microplastics that are easily aerosolized - they go right through a lot of vacuum filters!!!) so I could see them marketing it as "don't touch dirty disgusting toner cartridges anymore! You don't even have to _SEE_ the toner!"
This could probably also make it a LOT easier for third parties to make HP toner refills, unless HP's done something like trademark/copyright/patent the "toner delivery mechanism" to stop third parties from copying it.