SATISFACTION GUARANTEED OR YOUR MONEY BACK! FAST & FREE SHIPPING! If it doesn't work for you, contact best printers through Amazon and we will issue a refund. | User-friendly DIY Kit , No expertise required. Fixes printers with discoloration, colors/black ink not printing, low quality prints, and lines when printing. | Compatible with HP, Epson, Brother, Lexmark, Dell and Canon printers. Epson WF Models, All Epson EcoTank Models, HP Officejet, HP Deskjet, Brother MFC, Canon Pixma.XP-430 XP-434 WF-2510 WF-2520 WF-2530 WF-2540 WF-7620 WF-7610 WF-3640 WF-3620 WF-2630 WF-2650 WF-2660 WF-2750 WF-2760 HP PRINTER 8620 8610 8600 6830 6712 6700 6600 6500 5520 940 920 Pro 6968 Pro 6835, CANON Pro 10 Pro 100 MX922 S450, Brother MG7120 MG6320 MFC-6890CDW MFC-J880DW MFC-J6920DW J265 and MANY MORE. | Includes LARGE 20ML syringe for maximum results! Ionized cleaning solution for safe use on printer. | 95% success rate, has saved people hundreds of dollars, join the club! Our cleaning kit yields the best results. Use Best Printers YouTube Channel for additional video support. ***Also please run a printhead or power cleaning after using the cleaning kit, this will bring all the ink back into the printhead.