An image recording apparatus including a sheet supplier configured to supply a recording medium, a first conveyor configured to convey the recording medium supplied from the sheet supplier in a conveying direction, and a recording portion configured to record an image on the recording medium conveyed by the first conveyor may further include a controller configured to detect an orientation of the recording medium with respect to the conveying direction while the recording medium is conveyed and change a conveying speed of the recording medium conveyed by the first conveyor depending on the detected orientation of the recording medium.