Patent ID: 8851620

Claim:
An image formation device comprising: a transport section that applies a tension to a recording medium while transporting the recording medium in a transport direction; a width-direction positional change section that changes a position of the recording medium in a width direction that intersects the transport direction; a detector that detects a position of an edge of the recording medium in the width direction within a detection area; a control section that performs width-direction positional control by operating the width-direction positional change section in accordance with a detection result of the detector and by performing feedback control on the position of the recording medium in the width direction; and an image formation section that is located so as to face the recording medium and performs image formation on the recording medium, wherein the control section performs control, during the image formation, in a first control mode where the width-direction positional control is performed with a first frequency response characteristic corresponding to a frequency band including a high frequency band or in a second control mode where the width-direction positional control is performed with a second frequency response characteristic corresponding to a frequency band lower than the high frequency band.