Copying machine with a copy paper detection device

Claim 1

A copying machine comprising: copy process means for making at least one copy of an original put on an original platform on at least one copy paper sheet; original transferring means attached to the copying machine for automatically transferring at least one original to be copied to the original platform; means for reserving the number of copy paper sheets corresponding to the number of originals to be copied; paper storing means for storing a number of copy paper sheets; means for detachably receiving said paper storing means on said copying machine; means for feeding each one of said plurality of copy paper sheets from said paper storing means to said copy process means; means for detecting the number of copy paper sheets present in said paper storing means, said means for detecting the number of copy paper sheets present in said paper storing means including a plurality of light receiving elements in a vertical arrangement within said paper storing means and at least one light emitting element in an opposing relationship to said plurality of light receiving elements, the number of copy paper sheets present in said paper storing means being determined by counting the number of said light receiving elements which receive light; means for designating the number of originals to be copied; means for determining whether or not the number of copy paper sheets present in said paper storing means exceeds the total number of copies to be made for each original designated by said means for designating within a predetermined length of time after said paper storing means is set in the copying machine and prior to feeding the copy paper sheets to the paper process means; and means for warning an operator that the total number of originals to be copied is greater than the number of copy paper sheets present in said paper storing means.