An imaging operation controller includes: a casing, a control panel attached to a back part of the casing and provided with a plurality of operating members and function indicators indicating the functions of the operating members and placed near the operating members, respectively. The control panel includes a base plate attached to the casing, a mounting plate placed on the base plate and a printed indicator sheet placed on the mounting plate. The plurality of operating members are supported on the base plate, indicator lighting light sources are supported on the base plate at positions respectively corresponding to the function indicators so as to emit light backward. The indicator lighting light sources are white light-emitting diodes attached to the base plate so as to emit light backward.