| 摘要 |
<p>PURPOSE:To prevent incorrect data resulting from a test, etc., from being printed out, by inhibiting announcement logging output by an external input. CONSTITUTION:An input means supplies a central processing unit (CPU) with a request to disconnect a typewriter for announcement logging from the CPU to inhibit announcement logging output. For example, external data is inputted the CPU1 through a digital input device 3 to detect a state change of the external data. Then, the detected change data and time data generated by a clock 4 are set in a print queue stored in a memory 2 and the typewriter 6 for announcement logging is driven through a typewriter controller 5. Then, the disconnection request switch 7a is turned on to input a disconnection request signal to the CPU1 through a disconnection request input device 7 and the typewriter 6 is disconnected to inhibit following data from being fetched.</p> |
