Sheet feeding or delivering – Feeding – Separators
Reexamination Certificate
2005-02-22
2005-02-22
Walsh, Donald P. (Department: 3653)
Sheet feeding or delivering
Feeding
Separators
C271S118000, C271S117000
Reexamination Certificate
active
06857630
ABSTRACT:
A paper pickup mechanism for automatically picking up a paper is provided. The paper pickup mechanism includes a system motor for proceeding a first-direction rotation, and a second-direction rotation, a mounting shaft switching between a starting position and a pickup position, a first device driven by the system motor, and a second device driven by the first drive device, wherein the mounting shaft is driven by the first device to be switched from the starting position to the pickup position till the mounting shaft is limited by the paper while the system motor proceeds the first-direction rotation and the second device suffers an external force having a value less than a threshold, while the value of the external force suffered by the second device is larger than the threshold, so that the second drive device is started to move the paper, and while the system motor proceeds the second-direction rotation and the second device suffers the external force having the value less than the threshold, the mounting shaft is driven by the first device to be restored from the pickup position to the starting position.
REFERENCES:
patent: 5624109 (1997-04-01), Tanaka
patent: 6168147 (2001-01-01), Nose et al.
patent: 6497405 (2002-12-01), Yu et al.
Apex Juris pllc
Helms Tracy M
Joerger Kaitlin
Lite-On Technology Corporation
Walsh Donald P.
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