How to Use GI-290 Ink Bottle: Step 1: Open the ink tank part cover, Remove the ink tank plug and the plug on the top of the ink bottle. Step 2: Unscrew the ink bottle cover, Tear off the bottle seal, and Cover the ink bottle cap. Step 3: Inject all the ink in the bottle into the ink tank that matches the color of the ink bottle. Step 4: Screw back the ink refill bottle cap. Compatible for Canon PIXMA G4200, PIXMA G4210, PIXMA G3200, PIXMA G2200, PIXMA G1200, PIXMA G1000, PIXMA G1100, PIXMA G1400, PIXMA G1800, PIXMA G1900, PIXMA G2000, PIXMA G2100, PIXMA G2400, PIXMA G2800, PIXMA G2900, PIXMA G3000, PIXMA G3100, PIXMA G3400, PIXMA G3800, PIXMA G3900 Printers Good Fluency, Fast Drying Speed, Brilliant Color Gamut, Smooth Color and textures Excellent Quality - Through Micron-3 Stage Filtration to Reduce Printhead Clogging Cost Efficient - Simple operation eliminates the need to endlessly replace costly ink catridges