| 摘要 |
PURPOSE:To readily set desirable reduction and enlargement ratio in a short time by providing with keys for increasing/decreasing reduction and enlargement ratio which specify the increasing/decreasing of reduction and enlargement ratio and the variable keys of unit which vary a unit. CONSTITUTION:E.g., when a vertical up button 2 is pushed, vertical reduction and enlargement ratio increases by DELTAMAG. While, when a vertical down button 3 is pushed, vertical reduction and enlargement ratio MAGY reduces by DELTAMAG. By pushing a 50% increasing button 8, when current condition is not set to 50% increasing mode, it is set to 50% increasing mode and once it goes to a reduction and enlargement ratio of 100%. When the button is pushed again and again, reduction and enlargement ratio increases by 50% such as 50%, 100%, 150%, 200%, 250%, 300%, 350%, and 400%, and when it is pushed once again, ratio returns to 50%. |
