In an inkjet head, at least one of a plurality of nozzle arrays to eject ink of different colors from one another is arranged with nozzles displaced in position from nozzles of the other nozzle arrays in an arrangement direction of the nozzles. Each of the planetary gear sets includes first, second and third members. After a line is established, short message data that has been prepared in advance are sent to the SMSC apparatus. An offset alignment linkage pivotally attaches each jaw to the hinge plate and a rotatable spindles pivotally attached perpendicular to the jaws. The cooling rack is then placed on a counter, table, or other flat surface, with the legs preferably resting on the level surface.