Application process: Wet and soak solvent nozzles. Applicable models: 4-color or 5-color or 6-color or 8-color or 9-color or 10-color or 12-color desktop inkjet printer Product use: Clean the nozzle (print head) of the inkjet printer to make the printing ink smoother and protect the printer nozzle to extend its service life. Specific application: This product can clear most of the nozzle clogging and print disconnection caused by various reasons it is simple to operate, easy to use, and does not damage the nozzle, just a few minutes! Net content: 100ml Cleaning steps: (procedures)↓ 1) Press the ink drop button to change the ink cartridge on the printer, the carriage will move to the position where the ink cartridge is replaced, and unplug the power cord ↓ 2) Open the car cover and take out the ink cartridge ↓ 3) Use a syringe to draw out some special cleaning fluid from the cleaning fluid bottle. ↓ 4) Put the small rubber tube on the syringe on the ink outlet in the carriage. (See the figure below for details) ↓ 5) Pour 1-2ml of special cleaning liquid into the ink outlet. → 6) Repeat the above steps for each ink outlet one by one. → 7) When the power is off, put the ink cartridge back into the carriage and cover the carriage cover. Place the printer for 2-3 hours (according to the clogging of the print head), and pay attention to keeping the power off. → 8) After 2-3 hours, turn on the power again and perform the nozzle cleaning operation. 9) Please clean the ink outlet at least once every 1 to 2 months. Such maintenance can prolong the service life of the printer. The package includes: 1 x cleaning fluid 1 x Needle tube