Auto copy-paper selector

Claim 1

An automatic paper selector suitable for a copying machine comprising: first and second paper supply sections to which first and second cassettes storing papers are attached, respectively; first and second paper extracting means for extracting the papers from the first and second cassettes, respectively, the first and second paper extracting means being positioned at the first and second paper supply sections, respectively; and automatic selecting means for operating said automatic paper selector comprising first and second sensor means for detecting the attachment of said first and second cassette, respectively, first and second differential circuit means responsive to said respective first and second sensor means and connected respectively to a set and a reset input terminal fo a flip-flop means, said flip-flop means being responsive to said first and second differential circuit means for generating set and reset output signals for activating first and second selection lamps, respectively via a first switching circuit means, means for providing said set and reset output signals to a second switching means, said second switching means being responsive to said output signals and to further signals from a CPU for activating either said first or said second paper extracting means associated with the detected first or second cassette.