Black Cartridge (Lexmark 1380620/12A1970)) Refill method
InkTec : LMI-8620D, LMI-1970D use

1.Use the enclosed tool to make a hole in the top of the cartridge large enough for the refill dispensing needle to fit through .

2. Remove the cap of the ink bottle by twisting it counter clockwise and attach the refill dispensing needle to the ink bottle.

3. Insert the needle at an angle toward the print head nozzles as far as it will go and inject the proper amount of ink.

4. After refilling operation is complete, wipe any excess ink or foreignmaterial from the print head nozzles, install the cartridge into the printer, and run the "Head cleaning" utility.