1. First turn on the power of the printer, then open the cover of the printer to make the printer cartridges pile up to the left, and then take out the ink cartridges that need to be inked.
2. Take out the ink cartridge, find the lower groove of the ink cartridge by hand, and disassemble the upper film. The ink-jet hole is under the film. The black ink cartridge has only one hole, and the color ink cartridge has three holes, namely, upper red, Zuo Lan and right yellow.
3. After the film is torn off, find the ink injection hole and pull out the round beads with tools such as nails and tweezers. After it is pulled out, it is the ink injection hole, and then it is added with ink.
4. Prepare some paper towels, bring gloves with ink, and you can reload the ink cartridge. When replenishing, use a syringe and other tools to suck out an appropriate amount of ink and add it through the ink injection hole. It is easier to inject ink when it is slightly tilted, and it is slower to replenish ink.
5. After inking, put the ball back into the hole, then paste the QR code, and the inking work is completed. When labeling, be careful not to cover the vent hole, otherwise the ink will not circulate and print normally.