Contrapose to the useless of Original HP Cartridge chips, our company develop HP resettable chip and HP chip resetter, the cartridge can use many times after filling ink.
The resettable cartridge model ( for our chip only but not for original chip ):
:C4840A/C4841A/C4842A/C4843A/C4844A ,No. 10.
Suitable to the following printer model：Designjet 500/800/500PS/800PS/1050/5000/5500 series
Deskjet CP1700 Professional series
Business Inkjet 2200/2250/2250TN series
Business Inkjet 2230/2280/2600/DN series
Compatible to most of HP cartridge, save money, protect environment.