Swapping feed and separation rollers

Details Swapping feed and separation rollers Swapping feed and separation rollers

2005-04-26

2005-04-26

Walsh, Donald P. (Department: 3653)

Sheet feeding or delivering

Feeding

Separators

Reexamination Certificate

active

06883797

ABSTRACT:
A sheet feeding system has a pick roller, a first roller, and a second roller. The ends of the first and second rollers are coupled together. The pick roller acquires, or picks, a sheet from a stack of sheets and passes the sheet to the first and second rollers. One of the first and second rollers discourages unintended sheets passed with the sheet picked from the stack. The other of the first and second rollers advances the sheet. A logic processor evaluates interchange conditions and activates a drive mechanism when the evaluated interchange conditions reaches a threshold value. The drive mechanism interchanges the first and second rollers so that the second roller becomes the first roller and the first roller becomes the second roller.

REFERENCES:
patent: 1728538 (1929-09-01), Gentile et al.
patent: 2434411 (1948-01-01), Johnson
patent: 4348019 (1982-09-01), Stievenart et al.
patent: 5120297 (1992-06-01), Adami
patent: 5312098 (1994-05-01), Inoue
patent: 5421569 (1995-06-01), Davidson
patent: 1220047 (2002-07-01), None
patent: 9-118444 (1997-05-01), None

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