The HP LaserJet 5Si nx takes HP 09A black toner, identified by C3909A. It uses one toner cartridge, so there is no multi-cartridge set or alternate capacity to consider.
Toner Buzz offers the genuine HP 09A cartridge for this model. Match the 09A family or C3909A code when selecting toner for the printer.
Guaranteed fit for HP LaserJet 5si nx
The products below are genuine OEM HP Supplies made for the HP LaserJet 5si nx.