A printer device, comprising: a wireless communication device configured to receive pieces of information from a host device; a storage including a volatile storage and a non-volatile storage, wherein the volatile storage is configured to store variable data containing text data and a corresponding text data identifier, and image data and a corresponding image data identifier, comprised among the received pieces of information; a printer configured to print information on a sheet based on printing information; a display communication device configured to transmit display information to a display device; an output destination selection module configured to select an output destination of the variable data stored in the volatile storage based on a command comprised among the received pieces of information, wherein the command comprises a command code; a display information generation module configured to generate and output to the display communication device, when the output destination selected by the output destination selection module is the display device, the display information based on the variable data stored in the volatile storage; a printing controller configured to output, when the output destination selected by the output destination selection module is the printer, the printing information to the printer, wherein the printing information is based on the variable data stored in the volatile storage, wherein the display communication device is configured to output the display information generated by the display information generation module to the display device; and wherein the non-volatile storage is configured to: hold information stored therein irrespective of whether power is supplied to the non-volatile storage, wherein the information comprises fixed image data (FIMG) and an association table, which associates command codes for the display device with the stored variable data and fixed image data (FIMG) via respective identifiers; wherein the association table associates the fixed image data (FIMG) with the command code of the received command, wherein the display information generation module is configured to generate the display information by converting the command to the display information based on the association table stored in the non-volatile storage; and wherein the printing controller is configured to generate the printing information based on the fixed image data (FIMG) associated, in the association table, with the command code of the received command. a wireless communication device configured to receive pieces of information from a host device; a storage including a volatile storage and a non-volatile storage, wherein the volatile storage is configured to store variable data containing text data and a corresponding text data identifier, and image data and a corresponding image data identifier, comprised among the received pieces of information; a printer configured to print information on a sheet based on printing information; a display communication device configured to transmit display information to a display device; an output destination selection module configured to select an output destination of the variable data stored in the volatile storage based on a command comprised among the received pieces of information, wherein the command comprises a command code; a display information generation module configured to generate and output to the display communication device, when the output destination selected by the output destination selection module is the display device, the display information based on the variable data stored in the volatile storage; a printing controller configured to output, when the output destination selected by the output destination selection module is the printer, the printing information to the printer, wherein the printing information is based on the variable data stored in the volatile storage, wherein the display communication device is configured to output the display information generated by the display information generation module to the display device; and wherein the non-volatile storage is configured to: hold information stored therein irrespective of whether power is supplied to the non-volatile storage, wherein the information comprises fixed image data (FIMG) and an association table, which associates command codes for the display device with the stored variable data and fixed image data (FIMG) via respective identifiers; wherein the association table associates the fixed image data (FIMG) with the command code of the received command, wherein the display information generation module is configured to generate the display information by converting the command to the display information based on the association table stored in the non-volatile storage; and hold information stored therein irrespective of whether power is supplied to the non-volatile storage, wherein the information comprises fixed image data (FIMG) and an association table, which associates command codes for the display device with the stored variable data and fixed image data (FIMG) via respective identifiers; wherein the association table associates the fixed image data (FIMG) with the command code of the received command, wherein the display information generation module is configured to generate the display information by converting the command to the display information based on the association table stored in the non-volatile storage; and wherein the printing controller is configured to generate the printing information based on the fixed image data (FIMG) associated, in the association table, with the command code of the received command.