Printing device and control method for printing device

A control method for a printing device, the method comprising:

• causing a print mechanism performing printing based on data stored in a buffer temporarily storing accepted data;
• reading out data from the buffer as target data and determining that the read-out target data is which of a command and a character code;
• when determining that the target data is the character code, determining whether the target data is the character code associated with a plurality of character forms or not;
• when determining that the target data is the character code associated with the plurality of character forms, prefetching data stored in the buffer after the target data as prefetched data before printing the target data, and determining whether the prefetched data prefetched from the buffer is a predetermined code indicating one of the plurality of character forms or not;
• and
• when determining that the prefetched data is the predetermined code, selecting a character form indicated by the predetermined code from among the plurality of character forms associated with the target data as a target character form, and causing the print mechanism to print a character represented by the target data in the selected target character form.

A printing device comprising:

• a print mechanism performing printing;
• a buffer storing data;
• and
• a controller causing the print mechanism to print based on the data, wherein
• the controller is configured to execute following steps:
• when reading out a character code from the buffer as target data, determining whether the character code is a specific character code that is printable in a predetermined character form of a plurality of character forms,
• when determining that the character code is the specific character code, determining, based on data stored in the buffer after the target data, which character form to print the specific character code from the plurality of character forms,
• causing the print mechanism to print the specific character code in the determined character form, and
• when determining that the character code is not the specific character code, causing the print mechanism to print the character code without a determination based on the data stored in the buffer after the target data.