1. Fluent output: The final printing effect of the ink cartridge is very clear and strong, with bright colors, and the ink will not block the ink exit. 2. The difference between the two ink cartridges: Compared to HT01, AT01 has stronger adhesion, better performance, and better clarity, making it a high-definition printing cartridge. If printing on a smooth surface, such as glass, it is recommended to choose the AT01 ink cartridge. 3. This ink cartridge belongs to non encrypted ink cartridges and is not encrypted. Before use, please verify if your machine is encrypted. If your original machine was inked and may not be able to use it, you can try removing the original inked ink cartridge chip and attaching it to our ink cartridge chip for use. This is a suggested method. 4. Rapid Drying: The ink inside our handheld printer industrial grade cartridge can achieve rapid drying, which is very practical and sturdy.5. Reminder: After use, please remember to cover the lid to prevent ink from drying out and blocking the ink outlet. Model Number: HT01/AT01;Type: ink cartridge ;Suitable for various general inkjet printers: Compatible with 2588/2580 12.7mm solvent quick-drying ink cartridges for encryption-free handheld inkjet printers 1. It is suitable for unencrypted handheld inkjet printers. Encrypted printers cannot be used directly or they will not be held responsible. 2. HT01 series are ordinary quick-drying ink cartridges, not high-viscosity ink cartridges, so it is recommended that you print on carton paper or simple plastic packaging If printing on glass bottles, plastic bottles or some difficult-to-stick materials, it is recommended to use high-definition quick-drying ink cartridges which are AT01 series 3. AT01 high-definition high-adhesion ink cartridge with a lifespan of 13 months, can print on almost any material How do I kno