An electronic apparatus includes a conductive member and a printed circuit board, wherein the printed circuit board includes a printed wiring board having a signal wiring formed thereon, a first semiconductor device configured to output a digital signal to the signal wiring, and a second semiconductor device configured to input the digital signal output from the first semiconductor device via the signal wiring, wherein the signal wiring has a signal wiring pattern formed on a surficial layer located opposite the conductive member in the printed wiring board, and wherein the conductive member has an aperture formed therein and located opposite the signal wiring pattern or includes a flat plate portion and a recessed portion recessed in a direction more away from the printed wiring board than the flat plate portion.