Printer and method of obtaining inclination information of guide of printer

A printer comprising:

• a conveyor configured to convey a recording medium in a conveyance direction;
• a liquid jetting head including a nozzle array in which a plurality of nozzles are aligned in the conveyance direction;
• a carriage carrying the liquid jetting head;
• a guide guiding the carriage;
• a carriage moving unit configured to move the carriage in a moving direction in a state where the carriage is guided by the guide, the moving direction being a direction intersecting with the conveyance direction;
• a memory configured to store pieces of inclination information at positions in the moving direction, each piece of inclination information relating to inclination of the nozzle array with respect to the conveyance direction within a plane parallel to the conveyance direction and the moving direction, the inclination being caused by a deformation of the guide;
• and
• a controller configured to control the conveyor, the liquid jetting head, and the carriage moving unit, to perform:
• printing by performing a scan printing operation and a conveyance operation multiple times repeatedly, wherein, in the scan printing operation, the liquid jetting head is controlled to jet the liquid from the nozzles while the carriage is moved in the moving direction, and in the conveyance operation, the conveyor is controlled to convey the recording medium in the conveyance direction;
• and
• adjusting a jetting timing of the liquid at each of the positions based on the inclination information corresponding to each of the positions,
• wherein, in second or subsequent scan printing operation of the multiple times of scan printing operation, the controller is configured to perform:
• delaying the jetting timing in the second or subsequent scan printing operation relative to the jetting timing in scan printing operation immediately before the second or subsequent scan printing operation more greatly as the inclination increases, in a case that the inclination information indicates inclination in which a most downstream nozzle, of the nozzle array, in the conveyance direction is positioned upstream in the moving direction with respect to a most upstream nozzle, of the nozzle array, in the conveyance direction;
• and
• advancing the jetting timing in the second or subsequent scan printing operation relative to the jetting timing in the scan printing operation immediately before the second or subsequent scan printing operation more greatly as the inclination increases, in a case that the inclination information indicates inclination in which the most downstream nozzle in the conveyance direction is positioned downstream in the moving direction with respect to the most upstream nozzle in the conveyance direction.