"JimK" wrote in message
...
HP colour cartridge - old stock - blue and cyan OK, yellow not
working...any top tips for persuading it to? or surefire ways to knwo
its sh@gged and better get another? :)
ta
JimK

The driver software should include management tools (Windoze, of course).
The tools should include various severities of cartridge cleaning options to
get ink flowing again.

Also, the inks are water based so gently wiping the bottom of the cartridge
with a damp paper kitchen towel should show streaks of yellow from the built
in jets if there is still viable yellow ink in the cartridge.

However, having gone down that route with neglected HP cartridges recently
you will be lucky to revive it.
Probably borked.