1. 4INX Remanufactured Ink Cartridge Replacement For HP 60XL CC641WN CC643WN (1 Black+1 Tri-Color) Compatible Printers:HP Deskjet D2500/D2530/D2545/D2560/D2660/F4200/D4210/F4230/F4235/ F4240/F4250/F4272/F4273/F4274/F4275/F4280/F4283/F4288/F4292/F4293/F4480 HP Photosmart C4680 etc. NOTES:THIS IS A COMPATIBLE REPLACEMENT PRODUCT ONLY. USING KOREAN FAMOUS "INKTEC" ink. All the remanufactured inkjet cartridges read "Ink empty/ Ink less" but infact full of ink, Please use our wet wips to clean the Contacts and Nozzles, then click "OK" or Press " STOP/RESET" for 5seconds, It will work. 2.Why should I RECYCLE? All products 100% guaranteed 30-70%cost savings Reduce landfill waste Support America-keep the dollar here! 3.Will the use of a recycled cartridge harm my machine? No! A cartridge is a self-contained unit. Major purchasing magazines recommend this practice to Fortune 1000 companies. 4.How to install it to my printers? 1). Ensure that you have the correct HP printer cartridge for your HP printer model; 2). Remove the old HP ink cartridge or cartridges and save them to be recycled; 3). Pull the protective tape from the new ink cartridge. Insert the cartridge just slightly at an angle and push it in until it clicks into place; 4). Close the scanner bed and wait for the cartridge carrier to return to the resting position.