1. remove the toner cartridge from its package must be used within six months. Six months later, the performance of the various components of the cartridge will become unstable, and the print quality will decline, decline depending on the prevailing situation.
2. avoid toner cartridges direct sunlight or placed in the window. In the hot season, toner should not be placed in the car for a long time (even unopened toner cartridge).
3. avoid sharp changes in temperature and humidity of the environment, such as next to the air conditioning or heating.
4. avoid dust environments or near corrosive chemicals, such as ammonia or organic solvent vapors.
5. Prohibition of cartridges exposed to 104F ° (40 degrees) above the environment.