Exit shaft dampening device to improve print quality
View Patent ↗The present invention includes a damping device for a media feed mechanism for a peripheral device having 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.
1. A damping assembly for a media feedpath, comprising:
a feedpath having a first shaft and a second shaft parallel and downstream from said first shaft;
a damping hub disposed on said second shaft;
a brake structure engaging said damping hub, the brake structure comprising:
a first damping arm and a second damping arm opposed to one another, the first damping arm and the second damping arm substantially enclosing an outer surface of said damping hub, said first and second damping arms pivotally connected at a respective end thereof; and
a biasing member engaging said first damping arm and second damping arm at a respective other end of said first and second damping arms to rotatably engage said first and second damping arms with said damping hub to dampen unintended movement of said second shaft during media feed.
2. The damping assembly of claim 1 further comprising a dampener pivot disposed adjacent said brake structure.
3. The damping assembly of claim 2 wherein said damping arms are pivotally connected to said dampener pivot.
4. The damping assembly of claim 1 , wherein said first damping arm comprises a first brake and said second damping arm comprises a second brake, each of said first brake and second brake substantially enclosing the outer surface of said damping hub wherein said biasing member engages said first and second brakes to bias said first and second brakes toward one another.