Some countries have such legislation, some do not. It is advantageous
to companies to continue to produce cartridges as long as the demand is
high enough to be profitable.

Art

wrote:

The title says it all, really.
Today, printers seem to resemble cameras and hi-fi gear, being
"updated" or replaced every few months. As their advertisements all
boast large numbers of pages per cartridge, how realistic is it of me
to suppose that, after some time, a perfectly serviceable printer will
outlast the supply of toner cartridges and thus become junk?
Is there a sort'v legal requirement imposed on manufacturers to
support their hardware with consumables for a minimum time?
TIA.