| 摘要 |
PURPOSE: To save time and memory contents which are needed for downloading external characters by identifying external characters contained in input code strings, deciding whether the external characters are registered or not, and registering them, if not registered. CONSTITUTION: If a user creates external character data for a certain character code and sends a data flow which is a character code string containing the character code to CPU 1's printer driver, in the first place, the first character code of the data flow of text is read. Then search is made as to whether the same character code as the read character code exists in a registration file. If the answer is yes, decision is made as to if a registered flag is on in the registration file of the external character data. If the flag is off, the external character data are read in the external character registration file, and registered in a printer 6 as a character for the current character code. |
