Compatible brands: HP Application process: Wet and soak the solvent nozzle Applicable models: 4-color, 5-color, 6-color, 8-color, 9-color, 10-color, and 12-color desktop inkjet printers Product use: Cleans the inkjet printer nozzle (print head) to improve ink flow and helps protect the print head to extend its service life Specific application: This product can help remove most nozzle clogs and printing streaks caused by various factors; simple operation, easy to use, non-damaging to the print head, results in minutes Cleaning fluid benefits: 1. Non-corrosive formula helps protect the print head 2. Effective cleaning performance, dissolves and removes dried ink and blockages when soaked 3. Cost-effective solution for routine maintenance 4. Made with high-quality raw materials and advanced formulation 5. Instructions included for proper usage to achieve optimal results Cleaning steps: 1) Press the ink cartridge replacement button on the printer to move the carriage into position, then unplug the power cord 2) Open the carriage cover and remove the ink cartridges 3) Use the syringe to draw a small amount of cleaning solution from the bottle 4) Attach the small rubber tube from the syringe to the ink outlet in the carriage 5) Inject 12ml of cleaning solution into the ink outlet 6) Repeat the process for each ink outlet individually 7) With the power off, reinstall the ink cartridges, close the carriage cover, and let the printer sit for 2–3 hours (depending on severity of clog); keep power disconnected during this time 8) After 2–3 hours, restore power and run a printhead cleaning cycle 9) For best results, perform cleaning maintenance every 1 to 2 months to help extend printer life Package includes: 1 x 100ml cleaning solution, 1 x syringe