Compuprint 4247-X03 - Manual (Page 13)

Connecting or disconnecting a communication port, a
teleport, or an attachment connector
DANGER
<1-14> Switch off printer power and unplug the printer power cord before
connecting or disconnecting a communication port, a teleport, or other
attachment connector.
Servicing during an electrical storm
DANGER
<1-13> Do not connect or disconnect a communication port, a teleport, or
any other connector during an electrical storm.
Safety and environmental notices xiii