A.Items do not work.
Answer 1: Please check the product if in our compatible printer model.
B.When put the product in the printer it has error message
Answer 1: If the error message is not Original ink cartridge,please ignore it, Try to print directly. The product can work
Answer 2: The problem maybe the ink cartridge can not touch well with the printer.Use the eraser to rub the chip of the ink cartridge, and use the tissue to clean the slot of the printer.Turn off the power, restart the printer and install it again.