Updated chips,Aicon can supply HP 970 971 ink cartridge.

While recently HP Official has updated firmware again, whose code is LWP1CN1502BR.This might cause
problems like unrecognized chips after printing few pages, though you take cartridge out and re-install again
and again.

Aicon finished the second time updated of the HP 970/971 chips and this model is available now.

Don't hesitate to contact Aicon team for any inquiry.