... Beijing Napo Toner Cartridge in manufacturing process, the imported raw materials, MR, PCR, the WB/DB, Chip parts test them strictly , ... , can recycle 3-4 cycles;use none UV light protectyion for OPC drum.meanwhile it is equipped with a dust removal ... affect users work. 2, in use process, the user request for new selenium drum, must complete label, security labels intact, and ...