Color measurement device and method for detecting malfunction of color measurement device

The present invention is a color measurement device for color measurement of a printed pattern printed onto a medium, the color measurement device characterized by comprising a pressing member for pressing the medium; a color measurement section for performing color measurement of the printed pattern; a power supply for outputting power for the pressing member to press the medium; a detection section for detecting displacement of an output section of the power supply; and a controller for causing the color measurement section to perform color measurement of the printed pattern which was printed onto the medium pressed by the pressing member, the controller being adapted to reduce the power output by the power supply from a state in which the pressing member was pressed against the medium, and to detect a malfunction of the power supply on the basis of the detection result obtained from the detection section.