HP Designjet 500/800 bulk ink system including 4 x 250ml of ink, C,M,Y,K

 Easy to use and install, simply replace the original cartridges with the system cartridges which feed from the header tank, fill up the header tanks when required, the system tell the printer that the inks are always FULL.

Massive saving, printer never stops due to low or empty cartridge. SAM ink uses nano technology which improves print head life.