HP C8543X Compatible Laser Cartridge are premium quality-backed by a 1 year "No Risk Guarantee" and replacement policy. Every MICR cartridge is tested to insure quality, and exceeds ANSI and ABA standards. Our cartridges are not refills but remanufactured with new parts that are equal or exceed OEM specifications. We are dedicated to protecting the environment. By purchasing a remanufactured toner cartridge you protect the environment by eliminating pollution and waste in our landfills. Feel good about saving money + the planet. Business Days in Transit.