Sheet feeding or delivering – Feeding – Separator and conveyor
Reexamination Certificate
2007-02-06
2007-02-06
Walsh, Donald P. (Department: 3653)
Sheet feeding or delivering
Feeding
Separator and conveyor
C271S010120, C271S010040
Reexamination Certificate
active
10455422
ABSTRACT:
A paper feeding mechanism for an inkjet printer having a rapid printing speed and which continuously supplies and discharges sheets of paper during alignment operations of the feed roller. The paper feeding mechanism includes a drive gear coaxially coupled to a shaft of drive roller for transferring a sheet to a printing zone, a feed gear coaxially coupled to a shaft of the feed roller and operating to align the sheet transferred from the drive roller, and a discharge gear coaxially coupled to a shaft of discharge roller for discharging the sheet that has passed through the printing zone. The paper feeding mechanism further includes a motor for supplying a rotation power to the shaft of the feed roller, and a power transfer unit for transferring the rotation power of the shaft of the feed roller to the drive gear and the discharge gear. The power transfer unit includes a swing gear clutch installed between the feed gear and the drive gear, and a rotation power transfer device for connecting the drive gear and the discharge gear, such that a direction of rotation of the drive gear is constantly maintained by the swing gear clutch in a direction for transferring the sheet to the printing zone even though a direction of rotation of the feed gear changes and the discharge gear rotates in the same direction as the drive gear.
REFERENCES:
patent: 4721297 (1988-01-01), Katayama
patent: 5854696 (1998-12-01), Yun
patent: 5947465 (1999-09-01), Kato et al.
patent: 6641130 (2003-11-01), Lee et al.
patent: 05092838 (1993-04-01), None
patent: 05092839 (1993-04-01), None
Joerger Kaitlin
Roylances Abrams Berdo & Goodman LLP
Walsh Donald P.
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