Patent · US Expired

Plurality document feeding apparatus and method for copying machines

US5203554A · kind A · utility

32Cited by
6References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 5, 1991
Grant dateApr 20, 1993
Priority date
Expiry dateSep 5, 2011

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/23
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A document fed from a document loading tray is first transported into one branch transport path for invention of the transporting direction thereof, and then is guided through the other branch transport path and transported on to a document scanning area. In this process, when the trailing edge of the inverted document has passed the branching point between the two transport paths, the feeding of a succeeding document toward said one transport path is initiated. Also, when the trailing edge of the inverted preceding document has passed the branching point, the transportation of the preceding document is temporarily stopped, during which time the transporting direction of the succeeding document is inverted. This allows the succeeding document to be brought close to the preceding document. At this time also, the feeding of a further succeeding document may be initiated. By thus transporting the documents one following close behind another, the transporting time of the documents and hence the copying time can be reduced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.