Paper feeding mechanism
AssigneeHewlett-Packard Development Company, L.P.
InventorsRyan M Smith, Keng Leong Ng, Eric Andersen
Life of this patent
Estimating the term…
Abstract
A mechanism for an ADF having upper and lower trays, a base connecting the trays, and a cover pivotally connected to the upper tray includes a housing provided within the base and movable relative thereto. A transmission has a gripping position for transporting paper along a path from the upper tray to the lower tray and a release position allowing a paper jam along the path to be remedied. The cover is pivotable between a first condition maintaining the transmission in the gripping position and a second condition allowing the housing to move relative to the trays to place the transmission in the release position.
Claims13
A paper feeding mechanism for an automatic document feeder having an upper tray for storing paper, a lower tray for receiving paper, a base connecting the upper tray to the lower tray, and a cover pivotally connected to the upper tray, the mechanism comprising:
- a housing provided within the base and being movable relative to the base;
- and
- a transmission having a gripping position for transporting paper from the upper tray to the lower tray along a path around an exterior of the housing, including a lower path portion between the base and the housing, and a release position in which the housing is separated from the base, releasing the paper in the lower path portion between the base and the housing and allowing a paper jam along the path to be remedied;
- at least one spring for biasing the housing away from the lower tray to place the transmission in the release position;
- the cover being pivotable between a first condition that prevents relative movement between the housing and the base to maintain the transmission in the gripping position to a second condition that allows the housing to move relative to the upper tray and the lower tray to place the transmission in the release position.
An automatic document feeder comprising:
- an upper tray for storing paper;
- a lower tray for receiving paper;
- a cover pivotally connected to the upper tray;
- a base connecting the upper tray to the lower tray and defining an interior space;
- and
- a paper feeding mechanism comprising:
- a housing provided in the interior space and being movable relative to the base;
- and
- a transmission having a gripping position for transporting paper from the upper tray to the lower tray along a path around an exterior of the housing, including a lower path portion between the base and the housing, and a release position in which the housing is separated from the base, releasing the paper in the lower path portion between the base and the housing and allowing a paper jam along the path to be remedied;
- at least one spring for biasing the paper feeding mechanism away from the lower tray to place the transmission in the release position;
- the cover being pivotable between a first condition that prevents relative movement between the housing and the base to maintain the transmission in the gripping position to a second condition that allows the housing to move relative to the upper tray and the lower tray to place the transmission in the release position.
An all-in-one printer comprising:
- a main body including a user interface;
- an automatic document feeder pivotally connected to the main body, comprising:
- an upper tray for storing paper;
- a lower tray for receiving paper;
- a cover pivotally connected to the upper tray;
- a base connecting the upper tray to the lower tray and defining an interior space;
- and
- a paper feeding mechanism comprising:
- a housing provided in the interior space and being movable relative to the base;
- and
- a transmission having a gripping position for transporting paper from the upper tray to the lower tray along a path around an exterior of the housing;
- including a lower path portion between the base and the housing, and a release position in which the housing is separated from the base, releasing the paper in the lower path portion between the base and the housing and allowing a paper jam along the path to be remedied;
- at least one spring for biasing the paper feeding mechanism away from the lower tray to place the transmission in the release position;
- the cover being pivotable between a first condition that prevents relative movement between the housing and the base to maintain the transmission in the gripping position to a second condition that allows the housing to move relative to the upper tray and the lower tray to place the transmission in the release position.
Dependencies are inferred from the claim text.