Genuine OEM HP LaserJet 4350tn Toners

The HP LaserJet 4350tn takes HP 42A or high-yield HP 42X black toner. It also uses the Q5421A maintenance kit, but that part is for service rather than a cartridge change.

Toner Buzz carries genuine HP 42A and 42X singles, a two-pack of 42X, and the separate kit. Let the printer message guide you to toner or maintenance first.