Communication terminal device, communication control method, and non-transitory computer-readable medium storing communication control program

A communication control method used in a communication terminal device configured to perform data communication with a printer by first wireless communication in compliance with first wireless communication protocol and by second wireless communication in compliance with second wireless communication protocol, which is different from the first wireless communication protocol, the method comprising:

• selecting a to-be printed file to be printed by the printer;
• transmitting, in a case that the selected to-be printed file is a file in a particular non-support format, the to-be printed file to a conversion device in compliance with the first wireless communication protocol, and obtaining a to-be printed file, which has been converted to a file in a particular support format at the conversion device, from the conversion device in compliance with the first wireless communication protocol;
• changing a communication counterpart of the first wireless communication to the printer in a case that the second wireless communication between the communication terminal device and the printer is started after the selection of the to-be printed file and that the converted to-be printed image is not being obtained, and maintaining the communication counterpart of the first wireless communication in a case that the converted to-be printed file is being obtained;
• and
• transmitting the to-be printed file in the support format to the printer in compliance with the first wireless communication protocol in the case that the communication counterpart of the first wireless communication has been changed to the printer.

A non-transitory computer-readable medium storing a communication control program executable by a controller of a communication terminal device,

• the communication terminal device comprising:
• a memory configured to store at least one file;
• a display configured to display information;
• a selection operation accepting section configured to accept a selection operation for selecting specific information from among the information displayed on the display;
• a first wireless communication section configured to perform data communication with the printer by first wireless communication in compliance with first wireless communication protocol;
• and
• a second wireless communication section configured to perform the data communication with the printer by second wireless communication in compliance with second wireless communication protocol which is different from the first wireless communication protocol,
• the communication control program being configured to execute:
• displaying the at least one file stored in the memory on the display;
• setting up a file, which is selected by the selection operation accepting section from among the at least one file displayed on the display, as a to-be printed file to be printed by the printer;
• causing the first wireless communication section to transmit, in a case that the to-be printed file set by the communication control program is a file in a particular non-support format, the to-be printed file to a conversion device and causing the first wireless communication section to obtain a to-be printed file, which has been converted to a file in a particular support format at the conversion device, from the conversion device;
• changing a communication counterpart of the first wireless communication to the printer in a case that the second wireless communication between the communication terminal device and the printer is started after the setting of the to-be printed file and that the converted to-be printed image is not being obtained, and maintaining the communication counterpart of the first wireless communication in a case that the converted to-be printed file is being obtained;
• and
• causing the first wireless communication section to transmit the to-be printed file in the support format to the printer in the case that the communication counterpart of the first wireless communication has been changed to the printer.