| 摘要 |
PURPOSE:To perform the optimum maintenance work within a short time by writing data showing the history of maintenance in a memory part and outputting the data stored in the memory part by the order from a host apparatus. CONSTITUTION:A writing data switch 7 is operated to input maintenance data to a maintenance data history memory 5. When the maintenance data is desired to be read, the maintenance data is read from the operating table of a host apparatus 1 to send a command to a maintenance data history memory control circuit 4 which in turn outputs the content stored in the maintenance data history memory 5 to send the same to a maintenance data sending-out circuit 6. The maintenance data sending-out circuit 6 sends out the sent content of the maintenance data history memory 5 to the host apparatus 1 as maintenance data reading data. |
