A magnetic particle imaging apparatus includes magnets 106,107 that produce a gradient magnetic field having a field free region, excitation field electromagnets 102,114 that produce a radiofrequency magnetic field within the field free region, high-Q receiving coils 112 that detect a response of magnetic particles in the field free region to the excitation field. In the present invention, a slinger, a brush holder, and a connector are constituted by a resin body that is formed integrally using an insulating resin, and a voltage regulator, a surge absorber, and the connector are disposed radially outside the slinger alongside the brush holder on a first circumferential side of the brush holder. A layer unit divides the layers of the input signal into a first subset and a second subset. The first color filter elements contribute to a first color channel of the color image and the second color filter elements contribute to a second color channel of the color image.