This Maintenance tank can be suitable for New Model printer9700/ 7700/ / 7710/ 9710 INSTRUCTION] 1.Clients use cartridge, ususlly need to clean the printing head.This product ( maintenance tank ) have sponge in it which can absorb the ink, and the ink can volatile. 2.The printer alerts user when tank needs to be changed. ( replaces C12C890501/ C12C890502) 3.It gets certificate. 4.when the tank filled with waste ink, we suggest that you can suction by syringe.If you pour-out the waste ink directly, you will be easy make the maintenace tank dirty everywhere Amy amydai56@ hotmail.com Skype: dai5566