Sheet feeding apparatus
First Claim
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1. A sheet feeding apparatus comprising:
- transfer roller means for conveying the sheet by utilizing rotation frictional force;
one-way clutch means, connected to said transfer roller means, for rotating said transfer roller means intermittently in one direction;
step motor means for rotating said transfer roller means via said one-way clutch means thereby conveying the sheet along a given path; and
motor control means for gradually decelerating said step motor means at a rate to cause a rotation angle of said transfer roller means during deceleration to be greater than an overdrive rotation angle determined by inherent inertia of said transfer roller means and said one-way clutch means.
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Abstract
A paper feeding device having a pulse motor controller which controls the pulse motor so that the transfer roller is decelerated in a rotational angle larger than the rotational angle due to the inertia of the drive system consisting of the transfer roller and the pulse motor, thereby suppressing over-rotation of the transfer roller due to the inertia of the drive system.
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Citations
4 Claims
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1. A sheet feeding apparatus comprising:
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transfer roller means for conveying the sheet by utilizing rotation frictional force; one-way clutch means, connected to said transfer roller means, for rotating said transfer roller means intermittently in one direction; step motor means for rotating said transfer roller means via said one-way clutch means thereby conveying the sheet along a given path; and motor control means for gradually decelerating said step motor means at a rate to cause a rotation angle of said transfer roller means during deceleration to be greater than an overdrive rotation angle determined by inherent inertia of said transfer roller means and said one-way clutch means. - View Dependent Claims (2, 3, 4)
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Specification