The HP 20 black ink cartridge is used by itself in some HP fax machines.
We can supply two types of printer cartridge for the HP 20: HP original inkjet cartridges, in both light user and high yield versions and remanufactured (recycled) ink cartridges. We also supply an InkTec ink refill kit for this cartridge and bulk ink for use with the kit. We do not supply compatible cartridges for this type.
If you are looking for cheap ink, we recommend that you look at the cost of refilling your own cartridges.