Compatible HP3909A Toner Cartridge Supply ability:200,000/month Certificate:ISO9001,RoSH&CE Toner cartridge for Compatible HP C3909A, 3909, HP laser cartridge 1. Fist-hand empty cartridge 2.100% qualified raw material 3. High quality ink, no leak. No jam 4. Professional engineer provide technical support 5. Good service with excellent quality, guarantee 100% repalcement for any defective products ...