If your original ink cartridge is PG545 CL546,Our products are compatible for your printer. If your original ink cartridge is NOT PG545 CL546, Our products will not be suitable for your printer. Please do not buy. Cartridge Model : PG545 CL546 Color: Bk, Tri-color Ink Capacity: Bk 18ml Color 18ml Page Yield: Bk 600 pages, Tri-color 450 pages (at A4 Format, 5% Coverage ) Compatible Printer: Canon Pixma IP2800 IP2850 MG2400 MG2450 MG2455 MG2500 MG2540 Canon Pixma MG2550 MG2550s MG2555 MG2555s MG2900 MG2940 MG2950 Canon Pixma MG3050 MG3051 MG3052 MG3053 MX490 MX494 MX495 Contact us before purchase or after received product when you have any question, we will give you best service. Kindly Notice : Different Area use different ink cartridge model although printer model is same! Please check your original ink cartridge model number before place order. Our ink cartridges are Remanufactured. FAQ: - Why the printer shows "error e4" or "not recognize" or "failure"etc or the Indicator light "BLINKING"?? 1, not install correctly 2, chip is dirty- Solution: 1. re-install them, try sereral times 2. clean chip with eraser or clean cloth bound with alcohol, try try sereral times