| 摘要 |
PURPOSE:To display a warning of input inhibition to an operator immediately after a symbol, etc., which can not be printed by a printer is inputted, by providing a means, etc., for making an input-inhibited character check during data input. CONSTITUTION:An input-inhibited character processing part makes the input- inhibited character check during data input. For example, when some character key at a character key part 4 is pressed, an encoder 7 informs the processing part 8 of the input-inhibited character of that, the contents A of a table starting position pointer 11 are read out, and the starting position of the table in a memory 9 are read out. Then, an input character code appearing on a data bus are compared with the read input-inhibited character and if they are coincident, an input character warning signal is sent out to a display 1. Then, when no coincidence is obtained, the read position in the table is advanced successively to the end. |
