Exit shaft damping device to improve print quality
AssigneeLexmark International, Inc.
InventorsLarry W. Acton, William M. Connors, Walter K. Cousins, Stephen E. Stewart
Life of this patent
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Abstract
A damping device for a media feed mechanism for a peripheral device includes a media feedpath having a feed shaft and a downstream exit shaft. In one form a damping hub is mounted on said exit shaft, a resilient biasing member extending between the damping hub and the feed shaft to create a damping force on the damping hub. In another embodiment damping is provided by a brake structure engaging said damping hub. In yet another embodiment, a brake structure is pivotably mounted.
Claims5
An exit shaft damping assembly for a media feedpath in a peripheral device, comprising:
- an idler roller;
- an exit roller;
- an exit shaft along said media feedpath said exit shaft having said exit roller thereon with said idler roller biased against said exit roller to form a media feed nip therebetween;
- and
- a damping assembly engaging said exit shaft, comprising:
- a damping arm extending from said peripheral device, said damping arm having a first end and a second end opposite the first end, and said first end being pivotally attached to a fixed structure in said peripheral device;
- a biasing member extending from said peripheral device and engaging said damping arm;
- a brake positioned on the second end of said damping arm;
- and
- a damping hub positioned on said exit shaft with said biasing member biasing said brake against and in direct contact with said damping hub and placing a torque on said exit shaft.
Dependencies are inferred from the claim text.