Ink refill: Frequently Asked Questions What is an ink refill kit? An ink refill kit allows you to replace the ink in your inkjet cartridge yourself when it is empty. The ink refill startup kit contains everything you need. Depending upon the make and model of your printer, you’ll get detailed instructions, a syringe, a bottle of ink and sometimes a small drill. After purchasing a start up kit, you’ll only need to purchase the ink in the future. The following questions are often asked about i.