| 摘要 |
PURPOSE:To simplify the structure and the sequence, by executing a carrying start of an original by a feed signal outputted at a prescribed timing in accordance with an output of a copying material detecting means, and stopping this feed signal in accordance with an output of an original discharge detecting means. CONSTITUTION:A device is started and carrying of a copying material is started, and when a paper feed port sensor A provided on a feed paper carrying system of the transfer material detects the transfer material and a detecting signal is outputted, a timer is set simultaneously. When this timer counts up, a sheet controlling signal is generated, and start of an original is started. When this original is detected by an original discharge port sensor, the sheet controlling signal is reset and exposure is executed. When the discharge port sensor turns on, the detecting signal is generated and simultaneously the timer is started, and when this timer counts up, a resist signal is generated, and copying is executed by joining together resists of the tip of the copying material and an image on a photosensitive drum. |
