1.Do not touch the OPC drum surface with your hands.

   2.It is forbidden to use chemical reagents (such as alcohol) to wipe the surface of OPC drum.

   3.Do not use hard objects to collide with the OPC drum surface.

   4.Be careful not to bring staples and other office supplies into the printer with the printing media.

   5.After taking out the toner drum or OPC drum from the machine, it should be placed away from light, preferably covered with newspaper or other        things.