| 摘要 |
PURPOSE:To stop a copying machine automatically and quickly in changing, moving, etc. of originals under continuation of copying by the constitution wherein the repetition of exposure is interrupted according to the detection of a detecting means which detects the removal of the original after starting of the repetitive exposure. CONSTITUTION:On an original placing table, a microswitch which outputs open and close signals C respectively according to the open and close states of a press plate is provided. The open and close signals C and an exposure lamp energizing signal B are applied to an AND gate AN1. When the press plate is open during exposure, the output of an AND gates AN1 goes to a 1 and passes through an OR gate OR1. Said output is inverted by an inverter INV1, and an interruption 0 is applied to the interruption end INT2 of a CPU33. The CPU33 changes the content of a set register for copying quantity according to the same to one sheet. When the copying of said one sheet ends, the copying is automatically stopped there. Thus the copying machine is stopped automatically and quickly in changing, moving, etc. of the original under continuation of the copying. |
