Image recording apparatus

An image recording apparatus, comprising:

• a platen including a base and a plurality of ribs arranged at intervals in a first direction and protruding from the base, the platen being configured to support a recording medium on at least a part of the plurality of ribs;
• a recorder arranged to face the platen where the plurality of ribs protruding toward the recorder, the recorder being configured to record an image on the recording medium by causing a colorant to adhere to the recording medium supported by the platen;
• and
• a controller configured to control the recorder to record a borderless image, in which no margin is reserved at least on a first end of the recording medium, the first end being an end of the recording medium in the first direction, by causing a portion of the colorant to adhere to the recording medium and another portion of the colorant to exceed in the first direction from the first end of the recording medium, in a manner that varies according to a separation distance between a first rib being one of the plurality of ribs closest to the first end of the recording medium in the first direction and the first end of the recording medium.