IMAGING DEVICE

An imaging device according to the present disclosure includes: a plurality of pixel circuits; a first control line; a second control line; a first voltage supply line; a second voltage supply line; a first light-receiving element; and a diagnosis unit. The plurality of pixel circuits each includes a first terminal, a second terminal, a third terminal, an accumulation unit, a first transistor, a second transistor, and an output unit. The accumulation unit is configured to accumulate an electric charge. The first transistor is configured to couple the third terminal to the accumulation unit on the basis of a voltage of the first terminal. The second transistor is configured to supply a predetermined voltage to the accumulation unit on the basis of a voltage of the second terminal. The output unit is configured to output a signal corresponding to a voltage in the accumulation unit. The plurality of pixel circuits includes first to third pixel circuits. The first control line extends in a first direction. The first control line is coupled to the respective first terminals of the first to third pixel circuits. The second control line extends in the first direction. The second control line is coupled to the respective second terminals of the first to third pixel circuits. The first voltage supply line is coupled to the third terminal of the first pixel circuit. The second voltage supply line is coupled to the third terminal of the second pixel circuit. The first light-receiving element is coupled to the third terminal of the third pixel circuit.