Click here for current buyback rates and more information Send us your empty HP C8842A or HP 45 Black print cartridge (51645A) and we give you $1.00 for each cartridge! And $0.25 for each usable remanufactured cartridge! Ex… Send us 20 used HP C8842A cartridges we will send you a gift certificate for $20.00. If you have a larger quantity, 40+ […]