| 摘要 |
<p>Control circuitry is disclosed for operating stations in an automatic electrophotographic reproducing machine in either of two modes to make copies of different sizes. In one mode a document is held stationary while moving scanning elements move past it to form a scanned image, and in the second mode the scanning elements are held stationary while a document feeder feeds sheet documents past the scanning elements. The control circuity includes a multiplexer for gating appropriate signals to the various stations according to the mode in which the machine is operating.</p> |
