An operation state ascertaining unit of a sewing machine ascertains an operation state of a sewing machine main body. A content information selection unit selects particular content information that corresponds to the operation state ascertained by the operation state ascertaining unit from among multiple content information stored in an operation-associated content information storage unit that stores multiple content information corresponding to the operation state. An instruction information appending unit appends additional information with respect to instruction content for the main body to the content information selected by the content information selection unit. A coding unit codes the selected content information to which the additional information has been appended by the instruction information appending unit. A display unit displays the content information coded by the coding unit. Subsequently, a reader unit of a terminal apparatus reads the coded content information, and a display unit displays the content thus read.