Recording apparatus

A recording apparatus comprising:

• a conveyor configured to convey a recording medium in a first direction;
• a recording head configured to record an image on the recording medium;
• a carriage supporting the recording head;
• a moving mechanism configured to move the carriage reciprocatingly together with the recording head in a second direction intersecting the first direction;
• a width detection sensor installed in the carriage on an upstream side of the recording head in the first direction, the width detection sensor configured to detect two ends of the recording medium in the second direction;
• a medium detection sensor disposed on an upstream side of the carriage in the first direction to face the recording medium conveyed in the first direction by the conveyor, the medium detection sensor configured to detect the recording medium conveyed in the first direction by the conveyor;
• a memory configured to store width information relating to the second direction of the recording medium conveyed in the first direction by the conveyor;
• a tray configured to contain the recording medium to be conveyed in the first direction by the conveyor;
• and
• a controller configured to control the conveyor, the recording head and the moving mechanism to record an image on at least one recording medium based on the width information and a recording job which is a series of processing corresponding to a recording command, and configured to determine whether a predetermined condition for updating the width information is satisfied,
• wherein the controller is configured to determine whether the tray is empty based on a detection result by the medium detection sensor, and
• after determining that the tray is empty and before recording of an image on a first recording medium based on the recording job, the controller is configured to:
• acquire width information of the first recording medium by detecting the two ends of the first recording medium in the second direction by the width detection sensor;
• and
• store the width information of the first recording medium, which has been acquired, in the memory until the controller determines that the predetermined condition has been satisfied.