Apple Support: The LaserWriter drum is an organic photo-conductive layer laid on the surface of an aluminum cylinder. The ingredients of the organic layer are: wt% OSHA (PEL) ACGIH (TLV) aluminum alloy 95.0-98.0 – – titanium dioxide (13463-67-7) 0.5-2.0 * 15mg/m3(TWA) 10mg/m3(TWA)(Dust) (20mg/m3)(Stel) Binder resin 0.5-2.0 – – Organic semiconductor 0.3-0.8 – – Carcinogens: no […]