What basic safety precautions should I follow when using the HP Smart Tank 610?

You should read all instructions in the documentation, unplug the printer before cleaning, never install or use the printer near water or when wet, and place it on a stable surface where no one can trip over the power cord. Only use the power cord and power adapter provided by HP, and do not attempt to repair internal components yourself — refer servicing to qualified service personnel. (Page 4)