| 摘要 |
According to the present invention, provided is an image formation device which includes: an image formation unit which forms a measurement image on a sheet; a measurement unit which emits light onto the measurement image and measures light reflected from the measurement image; a white reference plate which is movable to a first position opposite to the measurement unit and to a second position separated further from the measurement unit than the first position; a shielding unit which is movable to a third position where the measurement unit blocks light radiated onto the white reference plate and to a fourth position where the measurement unit does not; and a control unit which controls the position of the reference plate and the shielding unit. When the measurement unit controls the white reference plate, the control unit moves the shielding unit to the fourth position and moves the white reference plate to the first position. |
