Brother HL-L8250CDN Product Safety Manual page 8

(MFC only)
Use caution when modifying telephone lines. Never touch exposed telephone wiring or
terminals unless the telephone line has been unplugged from the wall socket. Never fit
telephone wiring during a lightning storm. Never fit a telephone wall socket in a location that is
wet or may become wet, for example, near a refrigerator or other appliance that produces
condensation. Doing this might cause an electrical shock.
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