How to Use: 1. Shake the new toner cartridge 5?7 times from side to side 2. Slowly pull the seals away 3. Open the printer cover 4. Install the new toner cartridge into the printer 5. Close the printer cover Specification: Item Type: Toner Cartridge Material: ABS Model: CRG-CC388A Purpose: Printing Storage temperature: -20?-40? Applicable models: For LaserJet Pro M126a/M126nw/M128fp/M128fn/M128fw/P1007/P1008/P1106/P1108/M1136/M1213nf/M1216nfh/M226dn Package List: 1 x Toner Cartridge Note: Do not expose the toner cartridge to direct sunlight or extreme environments.