Document recycling copier for copying documents of varying sizes

A copier in which documents are recycled, comprising:

• a plurality of paper feeding means each for feeding paper sheets of a different size;
• copying means for copying documents on paper sheets which individually match said documents in size;
• a recycling automatic document feeding device loaded with a recycling stack of documents having a plurality of sizes for sequentially transporting said documents one by one to an image expsosing station of said copying means;
• a finisher for automatically binding copied paper sheets discharged from said copying means while regulating a stacking condition of said copied paper sheets;
• document size sensing means for sensing the sizes of the documents being transported to the exposing station by said automatic document feeding device;
• main control means for controlling said copying means and said automatic document feeding device such that a plurality of control operations are selectively performed;
• finisher control means for controlling said finisher such that the copied paper sheets produced by the control operations of said main control means are bound and discharged,
• wherein said copying means discharges the copied paper sheets either immediately or after temporarily stacking said copied paper sheets in said copying means.

A copier in which documents are recycled, comprising:

• a plurality of paper feeding means each for feeding paper sheets of a different size;
• copying means for copying documents on paper sheets which individually match said documents in size;
• a recycling automatic document feeding device loaded with a recycling stack of documents having a plurality of sizes for sequentially transporting said documents one by one to an image expsosing station of said copying means;
• a finisher for automatically binding copied paper sheets discharged from said copying means while regulating a stacking condition of said copied paper sheets;
• document size sensing means for sensing the sizes of the documents being transported to the exposing station by said automatic document feeding device;
• main control means for controlling said copying means and said automatic document feeding device such that a plurality of control operations are selectively performed;
• finisher control means for controlling said finisher such that the copied paper sheets produced by the control operations of said main control means are bound and discharged,
• wherein said plurality of control operations comprise a control operation wherein said automatic document feeding device ciculates all of the documents once while causing said documents size sensing means to sense the sizes of all of said documents,
• while said automatic document feeding means circulates all of the documents once afterwards, the documents of each two sizes are copied on the paper sheets of sizes which are individually associated with said document sizes, the documents of the largest size being first;
• the copied paper sheets of a first size are immediately discharged while the copied paper sheets of a second size smaller than the first size are stacked in said copying means and, after all of the documents have been circulated, discharged;
• and
• the above procedure is repeated until the all of the documents having the sensed sizes have been copied.

A copier in which documents are recycled, comprising:

• a pluality of feeding means each for feeding paper sheets of a different size;
• copying means supplied with paper sheets which individually match documents in size for copying documents on said paper sheets;
• a recycling automatic document feeding device loaded with a stack of documents of a plurality of sizes for sequentially transporting said documents one by one to an imagewise exposing station of said copying means while returning said documents to a predetermined position of said automatic document feeding device;
• document size sensing means for sensing sizes of the documents;
• document size storing means for storing the sensed sizes of the documents;
• magnification changing means for changing a size in which the documents are to be copied on the paper sheets;
• and
• means for causing said automatic document feeding device to circulate the individual documents once while causing said document size sensing means to sense the sizes of said documents, storing the sensed sizes of all of the documents in said document size storing means, and automatically selecting, on the basis of the stored document sizes, paper sheets associated with the documents of a medium size or paper sheets associated with the documents of a major size which a majority of the documents shares.

A copier in which documents are recycled, comprising:

• a pluality of feeding means each for feeding paper sheets of a different size;
• copying means for copying documents on paper sheets which individually match the documents in size;
• a recycling automatic document feeding device loaded with a stack of documents of a plurality of sizes for sequentially transporting said documents one by one to an imagewise exposing station of said copying means while returning said documents to a predetermined position of said automatic document feeding device;
• document size sensing means for sensing sizes of the documents;
• document size storing means for storing the sensed sizes of the documents;
• magnification changing means for changing a size in which the documents are to be copied on the paper sheets;
• and
• control means for causing said automatic document feeding device to circulate the individual documents once while causing said document size sensing means to sense the sizes of the documents, storing all of the sensed sizes of the documents in said storing means, and setting, by dividing the documents of a plurality of sizes into two size groups on the basis of the stored document sizes, a copy mode in which the documents are copied on the paper sheets of a single size by two kinds of magnifications which include the same magnification as the documents.