In order to add ink to your How to Put Ink Into a HP Printer, turn the printer on and open the ink cartridge door. Wait until the carriage becomes stationary and then take out the used cartridge. Open the new cartridge packaging, remove the protective strips, and place the cartridge in the right colored slot, which will click into position. Shut the cartridge door and let the printer align itself. Printing a test page will help in confirming whether the cartridge has been added properly. For more information, visit Devicesfixes.