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US 7,686,299 B2Granted
Registration carriage nip release with reduced reaction forces
AssigneeXerox Corporation
InventorDouglas K. Herrmann
Life of this patent
Estimating the term…
Abstract
This is a paper registration system that allows for a lateral reset while the paper is present in the nip space. By separating the nips, the carriage can move to reset position for the next sheet while the previous sheet is still present in the carriage. In addition, the configuration of the system of the invention is reduced or elimination of reaction forces on the carriage lead screw is provided. The registration embodiments of the present system are especially useful in a high speed marking system.
Claims11
A paper registration system comprising:
- a translating carriage comprising therein,
- at least two drive rollers,
- at least two idler rollers,
- motors to drive said drive rollers, and
- a movable carriage lead screw and motor to permit lateral movement of said carriage,
- said drive rollers and said idler rollers in movable and separable contact to form separable nips there between,
- said separable nips configured to allow for a lateral paper reset while said paper is present in a nip space,
- said idler and driver rollers rigidly connected to said carriage in a locked position such that said rollers move in accordance with and to the extent of said carriage movement, and wherein said carriage has a pivotable top portion comprising said idler rollers, a shaft for said idler rollers and a motor connected to said shaft.
5 more elements
A paper registration system useful in an electrostatic marking system comprising:
- a translating carriage comprising therein;
- at least two drive rollers,
- at least two idler rollers,
- motors to drive said drive rollers, and
- a movable lead screw and motor to permit lateral movement of said carriage,
- said drive rollers and said idler rollers in movable and separable contact to form separable nips there between,
- said separable nips configured to allow for a lateral paper reset while said paper is present in a nip space,
- said idler and driver rollers rigidly connected to said carriage in a locked position such that said rollers move in accordance with and to the extent of said carriage movement,
- said idler rollers and said drive rollers are secured in said carriage in a rigid structure and configured as a nip load is applied that no corresponding reaction force is applied to said movable lead screw, said rigid structure enabled to substantially reduce any adverse effect upon movement of said carriage lead screw and said carriage, and wherein said carriage has a pivotable top portion comprising said idler rollers, a shaft for said idler rollers and a motor connected to said shaft.
6 more elements
Dependencies are inferred from the claim text.