Patent ID: 7192109

Claim:
An environmental protection ink cartridge with a control chip, comprising: an ink cartridge having a plastic casing with a refillable ink reservoir, and a clip retainer on an exterior side thereof; and a chip socket, fittingly adapted to removeably plug into said clip retainer, having a CPU control circuit; a data bus, one end of which is connected to the CPU control circuit, and another end of which is adapted for connection to a printer; a plurality of rewriteable memory chips, consisting of an ink amount memory chip, a return point memory chip, and a restore value memory chip, which are each separately connected to the CPU control circuit, and separately provide functionality to monitor an ink amount within the ink cartridge, set an ink amount return point of the ink cartridge and reset an ink amount restore value after the ink cartridge has reached the return point and has been refilled; wherein the control chip is first configured on a chip socket, the chip socket being further plugged onto the ink cartridge.