Copier job recovery system

US4190354A · kind A · utility

Assignee

• Xerox Corporation · US

Inventors

• Craig A. Smith · Austin, US
• Joachim Guenther · Ingolstadt, DE

Key dates

• Filing date: Oct 30, 1978
• Grant date: Feb 26, 1980
• Expiry date: Oct 30, 1998

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G15/234
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Simplexed copy sheets lost during a partially completed pre-collation duplex copying run are automatically replaced in proper serial order into the partial copy set in the duplex buffer set tray by lifting the partial buffer copy set stack up with a false tray bottom and inserting replacement (make-up) simplex copies under the buffer set, then the false bottom is lowered and the duplex copying run, is continued, feeding out sheets from the duplex tray with the existing bottom feeder, and feeding the subsequent simplex copies in normally to the top of the buffer set stack. Thus, the copies in the buffer set do not have to be thrown away or reorganized by the operator when a copier jam occurs.