Photocopying device

Claim 1

In apparatus for the photocopying of originals of various formats on copying sheets of different sizes, including a table for supporting said originals, an illuminator for providing an image of said original, an exposure station defining a transport path through which said copying sheets are transported to receive said image, an optical system for selectively providing ones of a plurality of optical paths between said table and said station for said images, each such provided optical path being of a singular predetermined length, said system including mirror and lens means, and means for cutting copying paper to provide said different sized copying sheets, the improvement comprising: a. a plurality of switches spaced from one another along said transport path and operated upon predetermined positioning of said copying sheets relative thereto, each said switch having an input line and an output line; b. a plurality of push buttons having output terminals energized on push button operation, each said push button providing a visual indication of a relationship between original format size and the size in which said original format is to be photocopied; c. first circuit means connecting preselected of said push button output terminals to preselected of said switch input lines for energizing a preselected one of said switch input lines upon operation of each of said push buttons and thereby providing energization of a preselected one of said switch output lines upon operation of said switches; d. second circuit means including first conductors connected to preselected of said push button output terminals, said first conductors being selectively energized on operation of different ones of said push buttons, thereby providing electrical indication of a preselected one of said copying sheet sizes; and e. third circuit means including second conductors connected to preselected of said push button output terminals, said second conductors being selectively energized on operation of different ones of said push buttons, thereby providing electrical indication of a preselected one of said optical paths.