Review on GREENBOX Remanufactured Ink Cartridge Replacement HP 60XL 60 XL for Photosmart C4680 D110 Deskjet D1660 D2530 D2680 F2430 F4210 (2 Black) by Andrew Webster

You work a week, then the printer turns off and needs cleaning. I am slow and had to clean the printer 3 times to get it working again. Because I bought several to be cheaper per cartridge I used 3 cartridges a week and it's too late to get a refund because who uses 5 cartridges in 30 days. I usually use 1 per month.