42ML Inkjet Invisible Quick Dry Ink Cartridge Work for ZFM6 12.7mm/0.5inches Portable Handheld Printer Labeler

1 Pack Invisible Ink Cartridge with 42ML ink capacity, typically capable of printing approximately 100,000 characters. The ink cartridge is simple to use and can be installed easily without any technical skills or tools. The quick-drying ink is suitable for various surfaces including metal, plastic, pipe, foam, carton, wood, stone, tin can, paper, cup, china, beer can, box, bottle, cable, tube, egg, aluminum, fabric, T-shirt, and gunny bags. Printing is smooth, and the ink does not block the ink outlet. The print is very clear with strong adhesion, drying within 3-5 seconds. This is a quick-drying ink cartridge. When printing needs to be suspended, please cover the protective cap in time to prevent the ink cartridge from air-drying and blocking the nozzle. In case of blockage, you can wipe the nozzle with a soft paper towel. Please do not take out or insert the ink cartridge when switching the printer on/off or during printing