?Product Information Product Name : PGI 250XL compatible ink cartridge product Include : 1 x 250 Black, 1 x 251 Black, 1 x 251 Cyan, 1 x 251 Magenta, 1 x 251 Yellow Page Yield : 600 pages(250 BK) & 350 (251BK) and 300 pages per color cartridge @ 5% coverage ( A4 paper ) ?Characteristic New Design to prevent corrosion and printhead clogging, ensuring the best output quality and protect the printhead, which could extend their service time. newest version Chip help recognize ink cartridges and Show accurate Ink Level. ISO-9001 and ISO-140001 Certificate Approved factory . made High-Quality Ink Cartridge, Print with excellent color and crisp text We offer great print quality and reliable performance for fast, professional printing quality ?Please confirm your Printer Model before placing an order. ?Printer Compatibility CANON PIXMA MX722 MX922 CANON PIXMA MG5420 MG5422 MG5520 MG5522 MG5620 MG5600 CANON PIXMA IP7220 MG6320 MG7120 MG6420 IX6820 ?Warm Tips 1. You can keep the printer power-on if you often use it, as printers will run the printhead cleaning automatically when reset, which will waste ink. 2. You can turn off the printer power if the printer isn’t used frequently, Just need to switch on the power weekly, which will protect the printhead from clogging 3.If it shows "not recognized".please Remove the ink cartridge, install again. 4.To improve the printing quality, it’s better to clean the printhead before printing with a new cartridge. 5.When install the new cartridges into printer,the computer would promote "Non-Original", please click "Yes" ,then the printer can go on to print. ? You're welcome to contact seller firstly if any problems happen. We will respond to your question within 24 hours.?