Application Process: Wet and soak solvent nozzles. Applicable Models: 4-Color, 5-Color, 6-Color, 8-Color, 9-Color, 10-Color, and 12-Color desktop inkjet printers. 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 nozzle clogging and print disconnection issues; it is simple to operate, easy to use, and does not damage the nozzle. Net Content: 100ml Cleaning Steps: 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. Unplug the power cord. Open the car cover and take out the ink cartridge. Use a syringe to draw out some special cleaning fluid from the bottle. Put the small rubber tube on the syringe onto the ink outlet in the carriage. Pour 1-2ml of special cleaning liquid into the ink outlet. Repeat the above steps for each ink outlet one by one. 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 (depending on the clogging of the print head) and ensure the power remains off. After 2-3 hours, turn on the power again and perform the nozzle cleaning operation. Clean the ink outlet at least once every 1 to 2 months. Such maintenance can prolong the service life of the printer. Package Includes: 1 cleaning fluid 1 needle tube