Indexing a media feed shaft
AssigneeHewlett-Packard Development Company, L.P.
InventorsKeith Jariabka, Michael Ewe
Life of this patent
Estimating the term…
Abstract
In an implementation, an example method of indexing a media feed shaft in a media feed device includes rotating a media feed shaft and transmitting the rotation to an output gear that is remote from the media feed shaft. The method also includes sensing a feature of the rotating output gear and indexing the media feed shaft to the feature.
Claims12
A method of indexing a media feed shaft in a media feed device, the method comprising:
- rotating a media feed shaft;
- through a transmission, transmitting rotation of the media feed shaft to an output gear that is remote from the media feed shaft, the transmission comprising a drive gear rotatably attached to the media feed shaft, an idler gear, and the output gear, the drive gear to rotate with the media feed shaft and drive rotation of the idler gear, and the idler gear to drive rotation of the output gear;
- sensing a feature of the rotating output gear;
- and,
- indexing the media feed shaft to the feature.
A non-transitory machine-readable storage medium storing instructions that when executed by a processor of a media feed device, cause the media feed device to:
- receive a power-up indication;
- in response to the power-up indication, move an index sensor to a position that is proximate to an output gear of a transmission which transfers rotation of a media feed shaft to the output gear;
- rotate the media feed shaft;
- detect an index feature on the output gear;
- and
- index the media feed shaft to the detected index feature.
A media feed device comprising:
- a media feed shaft to advance media through a print zone;
- a transmission to propagate rotation of the media feed shaft to a remote index feature rotatably attached to an output gear that is remote from the media feed shaft, the transmission comprising a drive gear rotatably attached to the media feed shaft, an idler gear, and the output gear, the drive gear to rotate with the media feed shaft and drive rotation of the idler gear, and the idler gear to drive rotation of the output gear;
- a sensor to detect the remote index feature as it rotates;
- and,
- a controller to index the media feed shaft based on detection of the index feature.
Dependencies are inferred from the claim text.