| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of an erroneous copy and reduce an adverse effect due to the setoff of a transfer paper sheet with an image formed on one side thereof by showing the setting status of the transfer paper sheet when the use thereof is confirmed. SOLUTION: A sequence control part 130 has CPU 131 and an I/O controller 134 for controlling each input and output load as a control object. Size detection pushbutton switches 135, 136 and 138 fitted to each feed tray, and pushbutton switches 125, 137 and 139 for detecting a transfer paper sheet with an image formed on one side thereof are connected to the CPU 131 via the controller 134. The switch detection signals are transmitted to a system control unit 47 via the sequence control part 130. The system control unit 47 sends the detection signals to an operation part unit, upon receipt thereof from the pushbutton switches 135 to 139, and 125, and the operation part unit indicates the size and direction of paper sheets in each feed tray on a liquid crystal display panel, on the basis of the received detection signals. |
