1. It is very economical the arc combo chip, since the chip is the arc chip it is very economical and good for environment, because the chip can use again and again, thus the cartridge can recycle to be used.
2 .it is very convenient, you just need to press the switch on the chip, the chip are be reset, and can be use again. Also there are the pipelines to contact the cartridge and the tank. When the ink level is low you just need to fill ink in the tank which put outside of the printer, it is no need to put out the cartridge to refill ink
