Sheet feeding or delivering – Feeding – By means to convey sheet
Reexamination Certificate
2007-05-29
2007-05-29
Mackey, Patrick (Department: 3653)
Sheet feeding or delivering
Feeding
By means to convey sheet
C271S265020
Reexamination Certificate
active
10940726
ABSTRACT:
Feeding roller pairs are respectively constituted of a capstan roller and a nip roller. The nip roller is movable between a nip position and a release position. When movement timing of the nip rollers overlap, a pulse motor for moving the nip rollers is successively driven. For example, a drive-pulse speed for the pulse motor is detected at the moment that the downstream nip roller is moved to the nip position (at the moment that a predetermined time has passed after detecting a recording-paper sheet with a position sensor). And then, the drive-pulse speed is changed in accordance with the detected drive-pulse speed to drive the pulse motor at a prescribed speed.
REFERENCES:
patent: 6505833 (2003-01-01), Kato et al.
patent: 7036923 (2006-05-01), Takagi et al.
patent: 2001-033883 (2001-02-01), None
patent: 2002-003002 (2002-01-01), None
Birch & Stewart Kolasch & Birch, LLP
Fujifilm Corporation
Mackey Patrick
Severson Jeremy R
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