Sheet feeding or delivering – Feeding – Multiple supplies
Patent
1993-09-27
1994-12-20
Skaggs, H. Grant
Sheet feeding or delivering
Feeding
Multiple supplies
271259, 355313, 355208, B65H 344
Patent
active
053740459
ABSTRACT:
Automatic printing apparatus for printing an image on a sheet including sheet handling apparatus including plural sheet supply means each including a sheet stack support platform, a sheet feeder to feed a sheet from a stack, a sheet transport to transport a sheet from a stack to a first common sheet transport path; a controller to control the operation of the apparatus; at least one sensor to sense the passage of the lead edge of a sheet and to send a signal to the controller when that occurs, at least two of the plural sheet supplies being capable of supplying sheets of the same size, the controller being able to determine the size of the sheet in each sheet supply, the controller responding to the lack of a signal from the at least one sensor within a predetermined time by actuating another sheet supply that has the same size sheet as in the sheet supply from which a sheet was fed but did not reach the sensor within the predetermined time.
REFERENCES:
patent: 4008957 (1977-02-01), Summers
patent: 4786042 (1988-11-01), Stemmle
patent: 4800521 (1989-01-01), Carter et al.
patent: 5096181 (1992-03-01), Menon et al.
patent: 5157448 (1992-10-01), Lang
Xerox Disclosure Journal, vol. 9, No. 2, Mar./Apr. 1984, pp. 113-114.
Druzbick Carol L.
Skaggs H. Grant
Xerox Corporation
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