How to Refill HP 91, 761, 771, 771A, 771B, 771C, 773A, 773B, 773C, 774 DesignJet Cartridges 

Learn how to refill your HP DesignJet cartridges to save BIG on your DesignJet T7100, T7200, Z6100, Z6200, Z6600, Z6610, Z6800, or Z6180 printer's ink costs! Our USA-made ink is custom formulated to closely match the OEM color, so that you don't need to compromise on quality to print affordably.
Ink Refill Kits: www.inkowl.com...
Remanufactured Cartridges: www.inkowl.com...