Brother MFC 8220 - Manual (Page 144)

IMPORTANT INFORMATION 11 - 5
Laser safety
This equipment is certified as a Class I laser product under the U.S.
Department of Health and Human Services (DHHS) Radiation
Performance Standard according to the Radiation Control for Health
and Safety Act of 1968. This means that the equipment does not
produce hazardous laser radiation.
Since radiation emitted inside the equipment is completely confined
within protective housings and external covers, the laser beam
cannot escape from the MFC during any phase of user operation.