Application process: Wet and soak solvent nozzles. Applicable models: 4-color, 5-color, 6-color, 8-color, 9-color, 10-color, 12-color desktop inkjet printers Product use: Cleans the nozzle (print head) of inkjet printers to improve ink flow and protect the print head, extending printer life. Specific application: Effectively clears most nozzle clogs and print interruptions caused by various factors; simple and easy to use without damaging the nozzleresults in just a few minutes. Net content: 100ml Cleaning steps: 1) Press the ink drop button to initiate cartridge replacement mode. The carriage will move to the replacement position. Unplug the power cord. 2) Open the printer cover and remove the ink cartridges. 3) Use a syringe to draw cleaning fluid from the bottle. 4) Attach the small rubber tube from the syringe to the ink outlet in the carriage. 5) Inject 12ml of cleaning fluid into the ink outlet. 6) Repeat for each ink outlet individually. 7) With the power off, reinstall the ink cartridges, close the cover, and let the printer sit for 23 hours (depending on the severity of clogging). Keep the power off during this time. 8) After 23 hours, turn on the power and run a nozzle cleaning cycle. 9) For best results, clean the nozzles every 1 to 2 months to maintain optimal performance. Package includes: 1 x Cleaning fluid (100ml) 1 x Needle tube